CXA1737R

64 pin LQFP (Plastic)

E96Z11A77

AFM Stereo Signal Processor for 8 mm VCR

Description

The CXA1737R is a bipolar IC designed as an

AFM stereo signal processor for 8mm VCR.

All functions necessary for AFM stereo are

concentrated onto a single 64-pin LQFP.

Features

· Low supply voltage (3.15V) design

· Low power consumption (Vcc = 3.15V)

Recording: 150mW

Playback: 240mW

· Built-in BPF (1.5MHz, 1.7MHz)

· Supports NTSC and PAL

· Enables both parallel and 3-line serial mode control

· Supports electronic volume (EVR) control

Absolute Maximum Ratings

· Supply voltage

5.25

· Operating temperature Topr

20 to +75

°C

· Storage temperature

Tstg

65 to +150

°C

· Allowable power dissipation

1500

Operating Conditions

· Recommended supply voltage

3.15

4.75

· Supply voltage range

3 to 5.25

4.5 to 5.25

Structure

Bipolar silicon monolithic IC

Applications

8mm VCRs

Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.

CXA1737R

Block Diagram

MUTE

LINE

POWER

MUTE

1.5MHz

VCO

LIM

PHASE

COMP

MIX

LPF

1.7MHz

BFP

AGC

DOC

DET

FWR

MONO

DET

MUTE

DET

MUTE OFF

DELAY

LPEMP

D.C.

MUTE

S/H

LPEMP

DOUB

ALC

E.P.

E.P./
LINE

MIX

OFF

LINE Lch

MIX

OUTSEL

MUTE

REC

LINE

MIC

LINE

MIC

ALC

DET

FADE

D.C.

LPF

D.C.

CONTROL

BUS

DECODER

MUTE

NR L

DEC IN

DEC OUT

ENC IN

ENC OUT

S/H

REC

MATRIX

NR R

DEC IN

DEC OUT

ENC IN

ENC OUT

1.5MHz

BFP

MUTE

1.7M

1.5M

REC

PHASE

COMP

LIM

AFLIM

LPF

LIM

1.7MHz

VCO

PLL R

PLL L

MONO

OFF

REC

LINEO L

EPOUT L

GNDH

EPLINEOUT R

MUTEOUT

MIXOUT

PMUTETC

MIC/LINE (CS)

REC/PB (CK)

LINE MIX ON/OFF(SI)

VCT5

MICIN L

LINEIN L

MUTE ON/OFF

DC R

SHTC R

SHTC L

VCTH

WEIGHT L

NRDC L

GND2

TCH L

TC L

MONI L

DEVADJ L

PLLLPF L

OUTSEL CTL (P.SAVE)

ALCDET

LINEIN R

FADE

MICIN R

IFDC R

IREF

RFDC L

RFDC R

IFDC L

GND1

WEIGHT R

NRDC R

TCH R

TC R

MONI R

DEVADJ R

MATRIX CTL

RFSWP

FSCIN

NTSC/PAL

MUTETC

BPF ADJ

VCT

RECFMOUT

BPFMONI

PBRFIN

RFAGCTC

MONOOUT

PLLLPF R

MONO DET

SI/PA (SP/LP)

L-OUT

R-OUT

R-IN

L-IN

D.C.

MUTE

CXA1737R

Pin Description

1, V

2 = 3.15V, V

H = 4.75V, Ta = 27°C)

No.

Symbol

Equivalent circuit

Description

ALCDET

ALC time constant pin.
ALC is OFF when this pin is
low.

Pin voltage

250

500

GND

Vcc1

2µ

LINEIN R

Line input pin. Standard input
level: 38dBm.
This pin has a small input
signal level and high input
impedance. Therefore, be
careful not to cause cross
talk with other signals.

1.23V

50k

147

GND

Vcc1

5µ

VCT = 1.23V

FADE

EVR control pin for fader.
0 to 0.5V with fixed gain.
Increasing the applied
voltage lowers the gain and
causes the fader to operate.

See
Graph 1.

50k

GND

Vcc1

20µ

1.24V

MICIN R

Microphone input pin.
Standard input level: 38dBm.
This pin has a small input
signal level and high input
impedance. Therefore, be
careful not to cause cross
talk with other signals.

1.23V

50k

147

GND

Vcc1

5µ

VCT = 1.23V

Reference
input
38dBm

0dBm = 2.19Vp-p

CXA1737R

No.

Symbol

Equivalent circuit

Description

SI/ PA
(SP/ LP)

Serial/ parallel (SP/ LP) mode
switching pin. When this pin
is 4.3V or more, the IC
operates in serial control
mode and mode control for
the IC is performed by CS,
CK and SI of Pins 58, 59 and
60. When this pin is 3.5V or
less, the IC operates in
parallel control mode as
follows.

Pin voltage

20µ

GND

50k

147

1.5V

10µ

SP/LP

SI/PA SW

MONO DET

MONO DET time constant
pin.

2.47V

GND

10µ

10k

during MONO
2µ

during MONO
0.5µ

PLLLPF R

PLL time constant pin. Since
this pin has a small attraction
and discharge current,
signals should be received
with high impedance when
monitoring this pin. Also, be
careful not to cause pin cross
talk.

0.08µ

GND

25k

L (0 to 1V)

H (2 to 3.5V)
or OPEN

CXA1737R

No.

Symbol

Equivalent circuit

Description

MONOOUT

MONODET discrimination
output pin. This pin is open
collector, and it is pulled up to
Vcc with 100k

resistor.

During parallel mode, this pin
is also recording bilingual
control input pin.
· Specification for parallel CTL

During recording:

Bilingual recording
mode when this pin
is set to low (0 to 1 V)
during low of Pin 32
(REC MONO mode).

During playback:

Outputs MONO
discrimination result.
Open for MONO;
Low for others.

· Specification for serial CTL

See Mode Control Tables of
3) SO control mode table.

Pin voltage

GND

20µ

Bil Rec CTL IN

MONODET OUT

STEREO: H
MONO: L

RFAGCTC

RFAGC time constant pin.

2.48V

GND

40µ

1.1V

PBRFIN

Input pin for PB RF signal.
The reference input level is
approximately 200mVp-p
(Y + C + AFM).
Note that the reference input
level of AFM 1.5MHz
component is 15mVp-p.

GND

50µ

17k

147

1.15V

17k

Reference
input AFM
15mVp-p
(1.5MHz)

CXA1737R

No.

Symbol

Equivalent circuit

Description

BPFMONI

This pin is for measurement
which monitors the BPF
output.
For monitoring 1.5M BPF
characteristics, connect 4.7k

resistor to GND.
For monitoring 1.7M BPF
characteristics, connect 4.7k

resistor to Vcc.

During
1.5M BPF
monitor-
ing
1.09V

During
1.7M BPF
monitor-
ing
2.51V

Pin voltage

GND

1.5M BPF OUT

100

1.7M BPF OUT

RECFMOUT

Recording FM modulated
output pin. Reference output
is 220mVp-p for 1.5M
component; 175mVp-p for
1.7M component.

0.96V

GND

220µ

100

VCT

IC internal bias pin. Connect
a decoupling capacitor.

1.89V

GND

50µ

60k

BPF ADJ

Pin for varying the BPF fo.
The variable width is 0 to Vcc.

See
Graph 2.

GND

47k

23k

47k

73k

23k

20µ

Reference
output
1.5M BPF
= 180mVp-p
1.7M BPF
= 190mVp-p

1.5M + 1.7M

reference
output

CXA1737R

No.

Symbol

Equivalent circuit

Description

MUTETC

Time constant pin for
determining the MUTE OFF
delay time.
MUTE ON when drop out (T)
continues approximately 1ms
(during 680pF externally).

2.43V

Pin voltage

GND

10µ

10k

during DOC
0.6µ

during DOC
2.5µ

NTSC/ PAL

NTSC/PAL switching pin
during parallel mode.

GND

40µ

50k

1.5V

FSCIN

fsc input pin.
The input level is
approximately 200mVp-p.
During NTSC: 3.579545MHz
During PAL: 4.433619MHz

1.68V

GND

20µ

147

1.4V

40k

RFSWP

RFSWP input pin.

GND

1.2V

147

50k

110k

L (0 to 1V)

PAL

H (2V to V

)

NTSC

30Hz

H (2V to Vcc)

L (0 to 1V)

VTH

MUTE ON

Pin 22 input

Pin 27

Reference
input
200mVp-p

Reference
input
30Hz

CXA1737R

No.

Symbol

Equivalent circuit

Description

MATRIX CTL

MATRIX control input pin
during parallel mode.

OUTPUT SEL control input
pin during parallel mode.

Pin voltage

147

50k

10µ

GND

1.5V

50k

10µ

OUTSEL CTL
(P.SAVE)

147

50k

10µ

GND

1.5V

50k

10µ

BPF OFF
P.SEVE

CTL SW

PLLLPF L

1.75V

0.08µ

GND

25k

DEVADJ L

Deviation adjusting pin.
The variable width is from
0 to Vcc.

See
Graph 3.

GND

60k

20µ

50k

47k

Pin 33

L (0 to 0.7V)

M (1.3 to 1.7V)

or OPEN

H (2.3 to 3.5V)

H2 (4.3V to V

Lch/ Rch

Lch/ Rch (Main)

Lch/ Rch (SUB)

Power save

1.5M BPF through

Mode

Pin 32

During parallel

During

serial

L (0 to 0.7V)

M (1.3 to 1.7V)

or OPEN

H (2.3V to V

)

MONO

STEREO

Bilingual/

MONO Auto

STEREO/

MONO Auto

STEREO

REC

MONO

REC

CXA1737R

No.

Symbol

Equivalent circuit

Description

EPLINEOUT R

Output buffer system GND pin.

2.04V

Pin voltage

GNDH

LINE/ EPOUT pin.
This pin can drive a load of
120

GND

PMUTETC

4.70V

Time constant pin for
deciding the power ON/OFF
mute time.

GND

300

10k

MUTEOUT

MUTEOUT pin.
This pin outputs current
during muting and power
ON/OFF to operate the
external SW Tr.

GND

100k

MIXOUT

MIXOUT pin.
Set the load to 47k

or more.

2.06V

147

GND

Output buffer system power
supply pin.

4.75V

RF system power supply pin.

3.15V

Reference
output
7dBm

0dBm = 2.19Vp-p

Externally applied voltage

CXA1737R

No.

Symbol

Equivalent circuit

Description

MIC/ LINE
(CS)

Pin voltage

MIC/ LINE switching pin
during parallel mode.

CS input pin during serial
mode.

40µ

GND

50k

1.5V

VCT5

2.00V

IC internal bias pin.
Connect a decoupling
capacitor.

GND

60k

H (2V to V

)

LINE

L (0 to 1V)
or OPEN

MIC

REC/ PB
(CK)

REC/ PB switching pin during
parallel mode.

CK input pin during serial
mode.

40µ

GND

50k

1.5V

H (2V to V

)

REC

L (0 to 1V)
or OPEN

LINE MIX
ON/ OFF
(SI)

LINE OUT MIX ON/ OFF
switching pin during parallel
mode.

SI input pin during serial
mode.

40µ

GND

50k

1.5V

H (2V to V

)

MIX OFF

L (0 to 1V)
or OPEN

MIX ON

CXA1737R

No.

Symbol

Equivalent circuit

Description

MICIN L

1.23V

Pin voltage

Microphone input pin.
Standard input level: 38dBm.
This pin has a small input
signal level and high input
impedance. Therefore, be
careful not to cause cross
talk with other signals.

50k

147

GND

Vcc1

5µ

VCT = 1.23V

LINEIN L

Line input pin.
Standard input level: 38dBm.
This pin has a small input
signal level and high input
impedance. Therefore, be
careful note to cause cross
talk with other signals.

1.23V

50k

147

GND

Vcc1

5µ

VCT = 1.23V

Audio system power supply pin.

3.15V

Reference
input
38dBm

0dBm = 2.19Vp-p

Externally applied voltage

CXA1737R

Current consumption 1

during recording

Vcc1 + Vcc2 systems

Current consumption 2

during recording

VccH system

Current consumption 1

during playback

Vcc1 + Vcc2 systems

Current consumption 2

during playback

VccH system

MIC IN reference

output level

MIC IN reference

output level R/L

difference

MIC IN reference

output distortion

factor

MIC IN output

noise

LINE IN reference

output level

LINE IN reference

output level R/L

difference

LINE IN reference

output distortion

factor

LINE IN output

noise

ALC level 1

(REF + 20dB)

IREC1

IREC2

IPB1

IPB2

VLNOL

VLNOR

BAC1

HLNOL

HLNOR

NLNL

NLNR

VLNOLL

VLNOLR

BACL1

HLNOLL

HLNOLR

NLNLL

NLNLR

VALCL20

VALCR20

SG62

SG4

SG62

SG4

SG62

SG4

SG64

SG2

SG64

SG2

SG64

SG2

SG62

SG4

38dBm

18dBm

1kHz

4, 62 = a

2, 64 = a

4, 62 = a

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

During serial mode no

signal

During serial mode no

signal

During serial mode no

signal

During serial mode no

signal

VLNOR/VLNOL

Measure the THD to

the 10th

A weight

VLNOLR/VLNOLL

Measure the THD to

the 10th

A weight

0.55

5.0

+0.55

0.1

+0.55

0.1

+1.0

0.02

2.1

dBm

No.

Item

Symbol

Measurement input signal conditions

Reference signal source

Input pin

Level

Frequency

Input pin

Level

Frequency

Control

voltage

Switch condition

Mode

condition

Measure-

ment point

Measurement method

Min.

Typ.

Max.

Unit

Electrical Characteristics

1, V

2 = 3.15V, V

H = 4.75V, Ta = 27°C)

(Unless otherwise specified, SW 1, 2, 3, 4, 16, 22, 23, 26, 29, 31, 36, 44, 46, 52, 62, and 64 are b.)

CXA1737R

ALC level 2

(REF + 36dB)

ALC maximum input

distortion factor

(REF + 36dB)

ALC effects

(+36dB/+20dB)

E-E system

maximum output

level

FADER maximum

attenuation

FADER dead

voltage level

E-E system

frequency response 1

(20kHz/1kHz)

E-E system

frequency response 2

(50kHz/1kHz)

Input cross talk 1

between MIC and

LINE

Input cross talk 2

between MIC and

LINE

E-E system channel

input cross talk 1

E-E system channel

input cross talk 2

E-E system MUTE

attenuation

E-E system MUTE

switching level

output difference

VALCL36

VALCR36

HALCHL

HALCHR

VALCL23

VALCR23

VLNMXL

VLNMXR

VFAL

VFAR

VFALOL

VFALOR

FLNL20

FLNR20

FLNL50

FLNR50

VCTL1

VCTR1

VCTL2

VCTR2

VCTLRL

VCTLRR

VLNML

VLNMR

VMDCL

VMDCR

SG62

SG4

SG62

SG4

SG62

SG4

SG62

SG4

SG62

SG4

SG62

SG4

SG62

SG4

SG62

SG4

SG62

SG4

SG64

SG2

SG62

SG4

SG62

SG4

2dBm

/18dBm

VAL

38dBm

28dBm

1kHz

20kHz

/1kHz

50kHz

/1kHz

1kHz

V3 = 2.5V

V3 = 0.5V

4, 62 = a

1, 4, 62 = a

3, 4, 62 = a

4, 62 = a

2, 64 = a

62 = a

4 = a

4, 62 = a

A/E

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

Pin 49

Pin 52

TP49

P52A

Measure the THD to

the 10th

VALCL36/VALCL20

VALCR36/VALCR20

Output level when

THD = 1%

A weight

VFALOL/VLNOL

VFALOR/VLNOR

FLNL20/VLNOL

FLNR20/VLNOR

FLNL50/VLNOL

FLNR50/VLNOR

Cross talk of MIC

LINE

A weight

Cross talk of LINE

MIC

A weight

Cross talk of L

A weight

Cross talk of R

A weight

Output level during

MUTE ON

A weight

E-E system output DC

level difference during

MUTE ON/OFF.

3.0

0.0

0.5

100

+3.0

1.0

0.5

--69

0.5

+100

1.9

0.35

0.2

0.5

dBm

mVp-p

No.

Item

Symbol

Measurement input signal conditions

Reference signal source

Input pin

Level

Frequency

Input pin

Level

Frequency

Control

voltage

Switch condition

Mode

condition

Measure-

ment point

Measurement method

Min.

Typ.

Max.

Unit

CXA1737R

NR encode

reference output

level

NR encode linearity

(78dBm/38dBm)

NR encode frequency

response during SP

(10kHz/1kHz)

NR LP emphasis

frequency response 1

during LP 2kHz

(LP/SP)

NR LP emphasis

frequency response 2

during LP 10kHz

(LP/SP)

REC FM oscillation

frequency 1.5MHz

(NTSC)

REC FM oscillation

frequency 1.7MHz

(NTSC)

REC FM oscillation

frequency 1.5MHz

(PAL)

REC FM oscillation

frequency 1.7MHz

(PAL)

REC FM output

level Lch (1.5MHz)

REC FM output

secondary distortion

Lch (1.5MHz)

REC FM output

ternary distortion

Lch (1.5MHz)

VNRL38

VNRR38

VNRL78

VNRR78

FNRL10

FNRR10

FLPL2

FLPR2

FLPL10

FLPR10

FVCOL1

FVCOR1

FVCOL2

FVCOR2

VFML

VFMHL2

VFMHL3

SG62

SG4

SG62

SG4

SG62

SG4

SG62

SG4

SG62

SG4

SG29

38dBm

78dBm

/38dBm

38dBm

200mVp-p

1kHz

10kHz

/1kHz

2kHz

10kH

3.579545MHz

4.433619MHz

3.579545MHz

4, 62 = a

29 = a

I/H

Pin 37

Pin 15

Pin 37

Pin 15

Pin 37

Pin 15

Pin 37

Pin 15

Pin 37

Pin 15

Pin 24

BIL REC mode

VNRL78/VNRL38

VNRR78/VNRR38

BIL REC mode

FNRL10/VNRL38

FNRR10/VNRR38

BIL REC mode

Ratio of LP/SP

BIL REC mode

Ratio of LP/SP

Measure 1.5MHz

carrier level

More than 10k

load

VFMHL2/VFML

More than 10k

load

VFMHL3/VFML

3.7

2.5

1.4995

1.6995

1.4995

1.6995

198

5.8

3.5

1.5005

1.7005

1.5005

1.7005

245

4.9

1.5

1.7

1.5

1.7

220

dBm

MHz

mVp-p

No.

Item

Symbol

Measurement input signal conditions

Reference signal source

Input pin

Level

Frequency

Input pin

Level

Frequency

Control

voltage

Switch condition

Mode

condition

Measure-

ment point

Measurement method

Min.

Typ.

Max.

Unit

CXA1737R

REC FM output

level Rch (1.7MHz)

REC FM output

secondary distortion

Rch (1.7 MHz)

REC FM output

ternary distortion

Rch (1.7MHz)

REC FM output

level L/R mix ratio

BPF ADJ voltage

BPF MONI level

1.5 MHz

BPF frequency

response

0.8MHz/1.5MHz

BPF frequency

response

1.4MHz/1.5MHz

BPF frequency

response

1.6MHz/1.5MHz

BPF frequency

response

1.7MHz/1.5MHz

BPF frequency

response

2.5MHz/1.5MHz

BPF MONI level

1.7MHz

BPF frequency

response

1.5MHz/1.7MHz

BPF frequency

response

1.6MHz/1.7MHz

VFMR

VFMHR2

VFMHR3

VCOMIX

VBPAJ

VBPML

FBPL08

FBPL14

FBPL16

FBPL17

FBPL25

VBPMR

FBPR15

FBPR16

SG29

SG22

200mVp-p

15mVp-p

5mVp-p

15mVp-p

12mVp-p

3.579545MHz

1.625MHz

1.5MHz

0.8MHz

1.4MHz

1.6MHz

1.7MHz

2.5MHz

1.7MHz

1.5MHz

1.6MHz

SG29

200mVp-p

3.579545MHz

V26

VAL

V26 = VBPAJ

29 = a

22, 26, 29 = a

23 = a, b

22, 26, 29 = a

22, 23, 26, 29

= a

22, 23, 26, 29

= a

22, 23, 26, 29

= a

Pin 24

TP26

Pin 23

Measure 1.7MHz

carrier level

More than 10k

load

VFMHR2/VFMR

More than 10k

load

VFMHR3/VFMR

Stereo

VFML/VFMR

Monitor Pin 23.

Adjustment method

noted separately.

FBPL08/VBPML

FBPL14/VBPML

FBPL16/VBPML

FBPL17/VBPML

FBPL25/VBPML

FBPR15/VBPMR

FBPR16/VBPMR

157

1.25

0.1

137

194

2.35

2.9

274

290

175

1.7

194

210

mVp-p

No.

Item

Symbol

Input pin

Level

Frequency

Input pin

Level

Frequency

Control

voltage

Switch condition

Mode

condition

Measure-

ment point

Measurement method

Min.

Typ.

Max.

Unit

Measurement input signal conditions

Reference signal source

CXA1737R

BPF frequency

response

1.65MHz/1.7MHz

BPF frequency

response

1.75MHz/1.7MHz

BPF frequency

response

1.9MHz/1.7MHz

DEV variable width

1.5M

DEV variable width

1.7M

AF LIM

characteristics Lch

AF LIM

characteristics Rch

Reference FM

modulation

distortion factor

Lch, Rch stereo

Output level during

OA Lch stereo

Output distortion

factor during OA

Lch stereo

Output level during

OA Rch stereo

Output distortion

factor during OA

Rch stereo

FBPR165

FBPR175

FBPL19

VDEVL

VDEVR

VAFLML

VAFLMR

VRECHL

VRECHR

VSLPL

THBLPL

VSLPR

THBLPR

SG22

SG62

SG4

SG62

SG4

SG62

SG4

SG-R62

SG-R4

12mVp-p

38dBm

2dBm

38dBm

1.65MHz

1.75MHz

1.9MHz

400Hz

10kHz

1kHz

SG29

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

V26 = VBPAJ

V36 = VAL

V16 = VAL

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

22, 23, 26, 29

= a

22, 23, 26, 29

= a

22, 23, 26, 29

= a

26, 29, 36, 62

= a

4, 16, 26, 29,

16, 26, 29, 36,

4, 16, 26, 29,

36, 62

16, 26, 29, 31,

36 = a

22 = c

16, 26, 29, 31,

36 = a

22 = c

Pin 23

TP36

TP16

Pin 24

TP-P49

TP-P52

Pin 49

Pin 52

FBPR165/VBPMR

FBPR175/VBPMR

FBPR19/VBPMR

BIL REC mode.

Monitor Pin 24.

Adjustment method

noted separately.

BIL REC mode.

Monitor Pin 24.

Adjustment method

noted separately.

BIL REC mode

maximum deviation

width

BIL REC mode

maximum deviation

width

Measure the output of

Pin 24 after

demodulation at

standard demodulator.

Use standard

modulator

Use standard

modulator to the 10th

THD

Use standard

modulator

Use standard

modulator to 10th

THD

0.1

9.0

2.9

116

0.4

5.0

0.55

5.0

0.55

100

0.2

7.0

0.3

7.0

0.15

kHz

dBm

No.

Item

Symbol

Measurement input signal conditions

Reference signal source

Input pin

Level

Frequency

Input pin

Level

Frequency

Control

voltage

Switch condition

Mode

condition

Measure-

ment point

Measurement method

Min.

Typ.

Max.

Unit

CXA1737R

Output level during

OA R/L difference

Playback FM

demodulation

output noise Lch,

Rch

Playback system

MUTE switching

output level

difference

Separation during

OA L

R stereo

Separation during

OA R

L stereo

DOC detection

sensitivity ON

level

DOC detection

sensitivity OFF

level hysteresis

width

ON level during

DOC detection

sensitivity LP

MUTE OFF

DELAY T1

MUTE hold time

PG doubler width

Lch

BBRP

VNLPL

VNLPR

VPBDCL

VPBDCR

SSRPR

SSRPL

VDOCSL

VDOHSL

VDOCLL

TMUON

TMUOF

TPGHL

SG-R62

SG-R4

SG22

SG-R62

SG-R4

SG22

See

Fig. 3

SG22

38dBm

15mVp-p

12mVp-p

15mVp-p

12mVp-p

38dBm

See

Fig. 1

See

Fig. 1

See

Fig. 1

See

Fig. 2

See

Fig. 2

15mVp-p

1kHz

1.5MHz

1.7MHz

1.5MHz

1.7MHz

400Hz

1.5MHz

Tone Burst

1.5MHz

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

SG31

SG29

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

0 to 3V

200mVp-p

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

30Hz

3.579545MHz

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V44, V46 = 2.4V

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V44, V46 = 2.4V

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V44, V46 = 2.4V

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V44, V46 = 2.4V

16, 26, 29, 31,

36 = a

22 = c

16, 22, 26, 29,

31, 36 = a

16, 22, 26, 29,

31, 36 = a

16, 26, 29, 31,

36 = a

22 = c

16, 26, 29, 31,

36 = a

22 = c

16, 22, 26, 29,

31, 36, 44,

46 = a

16, 22, 26, 29,

31, 36, 44,

46 = a

16, 22, 26, 29,

31, 36, 44,

46 = a

16, 22, 26, 29,

31, 36 = a

16, 22, 26, 29,

31, 36 = a

16, 22, 26, 29,

31, 36, 44,

46 = a

B/F

Pin 49

Pin 52

Pin 49

Pin 52

TP49

P52A

Pin 52

Pin 49

Pin 37

Pin 49

Pin 37

VSLPR/VSLPL

A weight

DC level difference

during MUTE ON/ OFF

of playback line output

R separation

SSRPR/ VSLPL

Use standard modulator

L separation

SSRPL/ VSLPR

Use standard modulator

Value of Fig. 1-a when

15mVp-p is assumed

0dB

Ratio of Fig. 1-b/

Fig. 1-a

VDOHSL/VDOCSL

Value of Fig. 1-a when

15mVp-p is assumed

0dB

Delay time from

carrier lack to MUTE

start T1 (during 680p)

MUTE hold time

during MUTE cancel

Measure the T2 time

of Fig. 3

1.5

100

113

+1.5

+100

26.5

1.7

153

0.0

1.36

133

8.4

dBm

mVp-p

µs

No.

Item

Symbol

Measurement input signal conditions

Reference signal source

Input pin

Level

Frequency

Input pin

Level

Frequency

Control

voltage

Switch condition

Mode

condition

Measure-

ment point

Measurement method

Min.

Typ.

Max.

Unit

CXA1737R

PG doubler width

Rch

PG doubler delay

Lch, Rch

Monaural auto

detection ON level

Monaural auto

detection OFF

hysteresis width

CS, CK and SIN

input low level

CS, CK and SIN

input high level

Serial/ parallel low

level (parallel)

Serial/ parallel high

level (serial)

SP/ LP low level

(LP)

SP/ LP high level

(SP)

NTSC/ PAL low

level (PAL)

NTSC/ PAL high

level (NTSC)

Recording system

MATRIX low level

(MONO)

TPGHR

TPGD

AMOON

AMOOFF

VSIL

VSIH

V17SL

V17SH

V17L

V17H

V28L

V28H

V32L

See

Fig. 3

SG22

See

Fig. 3

SG22

See

Fig. 4

SG22

See

Fig. 4

SG22

58, 59,

15mVp-p

12mVp-p

15mVp-p

12mVp-p

15mVp-p

VAL

15mVp-p

VAL

1.5MHz

1.7MHz

1.5MHz

1.7MHz

1.5MHz, fs = non,

DEV = ±

60kHz

1.7MHz, fs = 1kHz

DEV = ±

30kHz

1.5MHz, fs = non,

DEV = ±

60kHz

1.7MHz, fs = 1kHz,

DEV = ±

30kH

SG31

SG29

SG31

SG29

0 to 3V

200mVp-p

0 to 3V

200mVp-p

30Hz

3.579545MHz

30Hz

3.579545MHz

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V44, V46 = 2.4V

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V44, V46 = 2.4V

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

V16 = VDEVR

V26 = VBPAJ

V36 = VDEVL

16, 22, 26, 29,

31, 36, 44,

46 = a

16, 22, 26, 29,

31, 36, 44,

46 = a

16, 22, 26, 29,

31, 36 = a

16, 22, 26, 29,

31, 36 = a

Pin 15

Pin 37

Pin 15

Pin 18

Pin 22

Pin 18

Pin 22

Pins 58,

59, 60

Pins 58,

59, 60

Pin 17

Pin 28

Pin 32

Measure T2 time of

Fig. 3

Measure T1 time of

Fig. 3

Value of Fig. 4-a when

12mVp-p of 1.7M

component is set to

0dB

Value of Fig. 4-b when

12mVp-p of 1.7M

component is set to

0dB

Confirm all mode

switching shown in

the mode table

Confirm all mode

switching shown in

the mode table

Parallel

Serial

Parallel mode check

PAL

Parallel mode check

NTSC

Parallel mode check

monaural

4.3

3.2

5.3

3.5

0.7

12.2

2.6

µs

No.

Item

Symbol

Measurement input signal conditions

Reference signal source

Input pin

Level

Frequency

Input pin

Level

Frequency

Control

voltage

Switch condition

Mode

condition

Measure-

ment point

Measurement method

Min.

Typ.

Max.

Unit

CXA1737R

Recording system

MATRIX high level

(STEREO)

Playback system

MATRIX low level

(BIL/MONO auto)

Playback system

MATRIX middle

level

(ST/MONO auto)

Playback system

MATRIX high level

(forced STEREO)

E-E system output

switching low level

(L/R)

E-E system output

switching middle

level (L/L)

E-E system output

switching high

level (R/R)

BPF through

switching high

level 2 (BPF OFF)

MUTE ON/ OFF

low level

(MUTE OFF)

MUTE ON/ OFF

high level

(MUTE ON)

MIC/ LINE low

level (LINE)

MIC/ LINE high

level (MIC)

PB/ REC low level

(REC)

PB/ REC high level

(PB)

100

101

102

103

V32H

V32PBL

V32PBM

V32PBH

V33L

V33M

V33H

V33H2

V48L

V48H

V58L

V58H

V59L

V59H

VAL

Pin 32

Pin 33

Pin 48

Pin 58

Pin 59

Parallel mode check

stereo

Parallel mode check

BIL/monaural auto

Parallel mode check

stereo/monaural auto

Parallel mode check

forced stereo

Parallel mode check

MAIN/SUB (L/R)

Parallel mode check

MAIN/MAIN (L/L)

Parallel mode check

SUB/SUB (R/R)

Parallel mode check

BPF through (OFF)/

POWER SAVE ON

Parallel mode check

MUTE OFF

Parallel mode check

MUTE ON

Parallel mode check

LINE

Parallel mode check

MIC

Parallel mode check

REC

Parallel mode check

2.3

1.3

2.3

1.3

2.3

4.3

0.7

1.7

0.7

1.7

3.5

No.

Item

Symbol

Measurement input signal conditions

Reference signal source

Input pin

Level

Frequency

Input pin

Level

Frequency

Control

voltage

Switch condition

Mode

condition

Measure-

ment point

Measurement method

Min.

Typ.

Max.

Unit

CXA1737R

Mode Condition Table

Electrical Characteristics Measurement Circuit Mode Table

Mode condition

Mode

contents

Value

bit 0 to 4

bit 5

P.SAVE

bit 6

MAT

RIX2

MAT

RIX1

OUT

SEL2

OUT

SEL1

bit 7

bit 8

bit 9

bit 10

MIX

bit 11

LINE

MIC

bit 12

bit 13

PAL

NTSC

bit 14

MUTE

bit 15

REC

V17

V20

BIL

V28

PAL

MAT

RIX

OUT

SEL

NTSC

V32

V33

V48

MUTE

V58

LINE

MIC

V59

REC

V60

MIX

Value

BUS DECODER condition table during serial

Condition table during parallel

REC

REC/LP

REC/PAL

REC/MUTE

PB/MUTE

REC/LINE

REC/BIL

REC/BIL/LP

PB/BIL

PB/LP

OPEN

During serial control, set switches 58, 59 and 60 to "a", and V17 to 4.3V to VccH.

During parallel control, set switches 58, 59 and 60 to "b", and set according to the mode table.

0 to 1V

1.3 to 1.7V

2 to 3.5V

H2:

4.3V to V

CXA1737R

Mode Control Tables

1. Parallel CTL mode table

SP/ LP

REC BIL CTL

PB MONODET
OUT

NTSC/PAL

MATRIX CTL

OUTSEL CTL

POWER SAVE

BPF ON/OFF

MUTE

MIC/LINE

REC/PB

RFU (MIX)

BIL REC
(during Pin

32 low)

STEREO/
BIL

PAL

Forced
MONO

Bilingual/
MONO auto
detection

Lch/Rch

OFF

MUTE OFF

LINE

REC

OFF

MONO

STEREO

STEREO/
MONO auto
detection

Lch/Lch

OFF

MUTE ON

LINE

REC

OFF

NTSC

STEREO

Forced
STEREO

MUTE ON

MIC

Rch/Rch

OFF

Serial
mode

OFF (only
1.5M BPF
is through)

CTL IN
during
REC

DET OUT
during PB

REC

Pin
No.

Symbol

LOW

(0 to 1V)

OPEN

HIGH1

(2V to V

)

HIGH2

(2V to 3.5V)

HIGH3

(4.3V to V

Control voltage

Remarks

When Pin 17 is 4.3V or more, the IC operates in serial control mode.

CXA1737R

Clock frequency

Setup time

Hold time

CS rise time to SI start time

Final CS rise time to CS fall time

Item

800

Max.

kHz

µs

Unit

Typ.

400

Min.

fck

HLD

Symbol

2. Serial control

When Pin 17 is 4.3V or more, the IC operates in serial control mode.

1) Input condition

POWER SAVE

MATRIX2

MATRIX1

OUTSEL2

OUTSEL1

LINEOUT MIX

LINE/MIC switching

LP/SP switching

PAL/NTSC switching

MUTE

REC/PB switching

Control name

OFF

See
Table 1

See
Table 2

OFF

LINE

MIC

PAL

NTSC

OFF

REC

Mode

See
Table 1

See
Table 2

CTL value

Bit No.

2µs or more

Data latch

800kHz or less

(15)

(3)

(2)

(1)

(0)

2) Serial CTL mode table

MATRIX ON

MATRIX
(AUTO)

MATRIX OFF
BIL/MONO
(AUTO)

MATRIX
ON

BIL REC

REC
MONO

MATRIX1

(bit 7)

MATRIX2

(bit 6)

during REC

during PB

Table 2

Rch/Rch

Lch/Lch

Lch/Rch

OUTSEL1

(bit 9)

OUTSEL2

(bit 8)

Table 1

SIN

Pin
No.

Symbol

LOW

(0 to 1V)

OPEN

HIGH

(2V to V

)

CTL voltage

CXA1737R

I/O Waveform

Pin 22 input waveform

Pin 37 output waveform

Level when the 1.5MHz signal is AM modulated
(2mVp-p to 20mVp-p) at 1kHz and the 15mVp-p
input is set to 0dB.

Fig. 1

Pin 22 input waveform

Pin 49 output waveform

15mVp-p

1ms

200ms

1.5MHz
Dev = ±60kHz
fs = 1kHz

Fig. 2

Pin 31 input waveform

Pin 37 output waveform

Pin 15 output waveform

PGD delay

PGD

width

Fig. 3

Pin 22 input waveform

Pin 18 output waveform

Level when the 1.7MHz signal is AM modulated
(2mVp-p to 20mVp-p) at 400Hz and the 12mVp-p
input is set to 0dB.

1.5M component waveform

15mVp-p/1.5MHz/SIN wave

1.7M component waveform

VAL/1.7MHz/AM = 100%/fs = 400Hz

Fig. 4

CXA1737R

Adjustment and Measurement Methods

DEV adjustment method

· Lch adjustment

Input the reference input (38dBm/400Hz) to the MIC input (Pin 62) and adjust the voltage applied to Pin 36

(V36) so that the Pin 24 output reference frequency deflection is 1.5MHz ± 60kHz.

When adjusting DEV, connect a 10k

load resistor between Pin 24 and GND as shown in the electrical

characteristics measurement circuit.

· Rch adjustment

Input the reference input (38dBm/400Hz) to the MIC input (Pin 4) and adjust the voltage applied to Pin 16

(V16) so that the Pin 24 output reference frequency deflection is 1.7MHz ± 30kHz.

When adjusting DEV, connect a 10k

load resistor between Pin 24 and GND as shown in the electrical

characteristics measurement circuit.

Reference FM modulation distortion factor measuring method

Demodulate the Pin 24 output into the audio signal with the reference demodulator under the same conditions

as for DEV adjustment above, then measure the distortion factor.

BPF adjustment method

Input 15mVp-p, 1.625MHz signal to Pin 22 and adjust the voltage applied to Pin 26 (V26) so that the output

level when the SW of Pin 23 is switched to "a" (1.7M BPF output) and the output level when the SW of Pin 23

is switched to "b" (1.5M BPF output) are equal.

When adjusting BPF, connect a 4.7k

load resistor between Pin 23 and GND as shown in the electrical

characteristics measurement circuit.

Fader adjustment method

Input the reference input (38dBm/ 400Hz) to the MIC input (Pins 62 and 4) and adjust the output level of Pins

49 and 52 with the voltage applied to Pin 3 (V3).

LINEO L

EPOUT L

GNDH

EPLINEOUT R

MUTEOUT

MIXOUT

PMUTETC

MIC/LINE (CS)

REC/PB (CK)

LINE MIX ON/OFF (SI)

VCT5

MICIN L

LINEIN L

MATRIX CTL

RFSWP

FSCIN

NTSC/PAL

MUTETC

BPF ADJ

VCT

RECFMOUT

BPFMONI

PBRFIN

RF AGC TC

MONOOUT

PLLLPF R

MONO TC

SI/PA (SP/LP)

ALCDET

LINEIN R

FADE

MICIN R

IFDC R

IREF

RFDC L

RFDC R

IFDC L

GND1

WEIGHT R

NRDC R

TCH R

TC R

MONI R

DEVADJ R

MUTE ON/OFF

DC R

S HTC R

S HTC L

VCTH

WEIGHT L

NRDC L

GND2

TCH L

TC L

MONI L

DEVADJ L

PLLLPF L

OUTSEL CTL (P.SAVE)

V32

SW31

SG31

SW29

SG29

V28

0.01µ

680p

V26

TP-P49

SW26

82k

10µ

Standard

demodulator

TP-P52

10k

SW23

4.7k

SG22

Vcc

SG-R62

SG-R4

0.01µ

SW22

3300p

V20

Vcc

100k

2200p

V17

0.47µ

470k

0.22µ

V48

SW44

SW36

V33

470k

0.22µ

0.47µ

82k

TP36

V36

P37

0.22µ

1µ

22µ

4.7µ

1000p

V44

1000p

SW46

V46

SW64

0.22µ

SG64

SW62

0.22µ

SG62

22µ

SW60

SW59

V60

V59

SW58

V58

3.15V

TP49

2.2µ

10k

47k

22µ

120

10k

22µ

120

10k

47k

P52A

Vcc

100µ

0.01µ

47µ

COM

4.75V

VccH

100µ

2.2µ

10k

TP55

47k

0.01µ

47µ

82k

SW16

TP16

P15

22µ

1µ

4.7µ

0.22µ

10µ

SW3

47k

SW4

0.22µ

SG4

SW2

0.22µ

SG2

22µ

SW1

22k

100µ

TP26

V16

Standard

modulator

CXA1737R

Electrical Characteristics Measurement Circuit

CXA1737R

Application Circuit

Application circuits shown are typical examples

illustrating the operation of the devices. Sony cannot

assume responsibility for any problems arising out

of the use of these circuits or for any infringement of

third party patent and other right due to same.

LINEO L

EPOUT L

GNDH

EPLINEOUT R

MUTEOUT

MIXOUT

PMUTETC

MIC/LINE (CS)

REC/PB (CK)

LINE MIX ON/OFF (SI)

VCT5

MICIN L

LINEIN L

MATRIX CTL

RFSWP

FSCIN

NTSC/PAL

MUTETC

BPF ADJ

VCT

RECFMOUT

BPFMONI

PBRFIN

RF AGC TC

MONOOUT

PLLLPF R

MONO TC

SI/PA (SP/LP)

ALCDET

LINEIN R

FADE

MICIN R

IFDC R

IREF

RFDC L

RFDC R

IFDC L

GND1

WEIGHT R

NRDC R

TCH R

TC R

MONI R

DEVADJ R

MUTE ON/OFF

DC R

S HTC R

S HTC L

VCTH

WEIGHT L

NRDC L

GND2

TCH L

TC L

MONI L

DEVADJ L

PLLLPF L

22µ

1µ

4.7µ

0.22µ

10µ

47k

0.22µ

22µ

22k

100µ

LINE IN Rch

MIC IN Rch

FADER CTL

DEV ADJ Rch

680p

10µ

3300p

2200p

0.47µ

470k

0.22µ

SI/PA (SP/LP)

PB RF IN

BPF ADJ

Fsc IN

RF SWP

MATRIX CTL

NTSC/PAL

0.01µ

470k

0.22µ

0.47µ

0.22µ

1µ

22µ

4.7µ

1000p

OUTSEL CTL

DEV ADJ Lch

MUTE ON/OFF

0.22µ

22µ

2.2µ

10k

22µ

120

10k

22µ

120

10k

100µ

0.01µ

47µ

100µ

2.2µ

10k

0.01µ

47µ

LINE IN Lch

MIX ON/OFF (SI)

MIC IN Lch

REC/PB (CK)

MIC/LINE (CS)

Vcc = 3.15V

VccH = 4.75V

1000p

OUTSEL CTL

(P. SAVE)

CXA1737R

0.5

1.0

1.5

2.0

2.5

3.0

Pin 3 adjustment voltage [V]

Pins 49 and 52 output level [dBm]

Graph 1. FADER control characteristics

0.5

1.0

1.5

2.0

2.5

3.0

1.50

1.55

1.60

1.65

1.70

TP26 adjustment voltage [V]

1.5M/1.7M BPF cross frequency [MHz]

Graph 2. BPF ADJ control characteristics

82k

TP26

0.5

1.0

1.5

2.0

2.5

3.0

TP16 adjustment voltage [V]

1.7M side DEV width [±

kHz]

Graph 4. DEV ADJ control characteristics Rch

82k

TP16

0.5

1.0

1.5

2.0

2.5

3.0

TP36 adjustment voltage [V]

1.5M side DEV width [±

kHz]

Graph 3. DEV ADJ control characteristics Lch

82k

TP36

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: CXA1737R

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: CXA1737R