NTE7150
Integrated Circuit
Video, Chroma, and Sync. Signal Processing Circuit
for PAL/NTSC/SECAM System Color Televisions
Description:
The NTE7150 is an integrated circuit in a 64Lead SIP type package designed for PAL/NTSC/SECAM
system color televisions involving video, chroma, and sync. signal processing circuits.
The video section contains a highperformance picture quality emphasis circuit, the chroma section
contains a PAL/NTSC/SECAM system automatic identification circuit, and the sync. section contains
a 50/60Hz automatic identification circuit. The PAL/SECAM demodulating circuit uses a baseband
signal processing system, providing an adjustmentfree demodulating circuit. User control functions,
system switching, etc. are controlled via the I
2
C bus.
Features:
Video Section
D
Sharpness Control with Internal Delay Lines
D
Black Stretching Circuit
D
YNR
D
Variable DC Restoration Ratio
D
Gamma (
g
) Contrast Correction
Chroma Section
D
PAL/SECAM baseband Demodulation System
D
Automatic Srystal Frequency Identification (4.43MHz/3.58MHz/M, NPAL)
D
Automatic Chroma System Identification (PAL/NTSC/SECAM)
D
PLL SECAM AdjustmentFree Demodulation Circuit without and Tank Coils
D
BuiltIn SECAM BELL Filter
Sync. Section
D
AdjnustmentFree Horizontal and Vertical Oscillation Circuits based on Countdown System
D
Automatic Vertical Frequency Identification (50/60Hz)
Absolute Maximum Ratings: (T
A
= +25
C unless otherwise specified)
Supply Voltage, V
CC
15V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation, P
D
max
2660mW
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Derate Above 25
C
21.2mW/
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Signal Amplitude, e
in
5V
PP
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applied Voltage, E
in
GND0.3V to V
CC
+0.3V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
20
to +65
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
55
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Operating Conditions:
Parameter
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
At Pin19, Pin36, Pin50, and Pin59
8.1
9.0
9.5
V
At Pin5
8.1
9.0
10.0
V
At Pin4
3.0
3.3
3.6
V
Recommended Operating Conditions (Cont'd):
Parameter
Test Conditions
Min
Typ
Max
Unit
Video Input Signal Level
Composite Video Signal Amplitude
0.7
1.0
1.2
V
PP
Chroma Input Signal Level
PAL/NTSC Chroma Input
100
200
300
mV
PP
SECAM Chroma Input
50
100
150
mV
PP
Sync Input Signal Level
Composite Video Signal Amplitude
1.0
2.0
2.5
V
PP
Text Input Signal Level
0.5
0.7
1.0
V
PP
FBP Width
11
12
13
s
FBP Input Current
0.3
1.0
1.3
mA
RGB Output Current
1.0
2.0
mA
H. Out Output Current
3.0
5.0
mA
V
P
Output Current
1.0
2.0
mA
DC Characteristics: V
CC
= 9V, Logic V
CC
= 3.3V, T
A
= +25
C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Supply Current
Logic V
CC
(Pin4) = 3.3V
10
20
28
mA
Video/Chroma V
CC
Turned OFF
15
30
40
mA
H. V
CC
(Pin5) = 9V
10
20
28
mA
Video/Chroma V
CC
Turned OFF
15
30
40
mA
TEXT Section V
CC
(Pin19) = 9V
15
31
44
mA
SECAM Section V
CC
(Pin36) = 9V
10
18
25
mA
Chroma Section V
CC
(Pin50) = 9V
12
27
38
mA
Video Section V
CC
(Pin59) = 9V
17
37
52
mA
Terminal Voltage
Pin2
7.2
7.4
7.8
V
Pin16, Pin17, and Pin18 (In Mute Mode)
1.7
2.0
2.3
V
Pin22, Pin23, and Pin24 (UniColor DAC center)
3.3
3.8
4.2
V
Pin63 (Apply 5V with 5.1k
Resistor, Measure DC Output
Voltage at Trace Period)
3.1
3.5
3.9
V
AC Characteristics: V
CC
= 9V, Logic V
CC
= 3.3V, T
A
= +25
C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Video Section
Y Input Dynamic Range
Upper
Measure dynamic range above the pedestal level
0.7
1.0
1.3
V
PP
Lower
Measure dynamic range below the pedestal level
0.0
0.3
0.5
V
PP
Y Input Impedance
Measure input impedance of Pin60
100
130
k
Y Input Clamp Voltage
Measure DC voltage at Pin60 when Y input
connected to AC GND.
2.5
2.8
3.1
V
Maximum Y Gain
15.0
17.5
23.0
dB
Y Frequency Bandwidth
8
10
15
MHz
Black Stretching Amp Maximum Gain
1.3
1.4
1.5
Black Stretching Start Point
40
50
65
IRE
DC Restoration Ratio
97
100
103
%
Black Stretching Start Voltage
3.2
3.3
3.6
V
Delay Time of Sharpness Circuit
Measure difference in Y output signal delay time
between sharpness SW turned ON and OFF.
115
125
135
ns
AC Characteristics (Cont'd): V
CC
= 9V, Logic V
CC
= 3.3V, T
A
= +25
C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Video Section (Cont'd)
Sharpness Control
Maximum Gain
Input 2T pulse VBS to TP60 and TP63. Measure
3.5
5.5
7.5
dB
Center Gain
2T pulse output gain of data = 3FH, 20H, and
00H. 0dB is equal to the output gain of sharpness
0.5
1.5
3.5
dB
Minumim Gain
00H. 0dB is equal to the output gain of sharpness
SW OFF.
3
1
+1
dB
YNR Gain
20
13
8
dB
Contact Control
Center Gain
Measure Y output gain of data = 40H and 00H.
4.0
5.5
7.0
dB
Minimum Gain
Maximum Y gain is 0dB.
17
19
21
dB
g
Point
V
a
40
50
60
IRE
V
b
80
90
100
IRE
g
Gain
G
a
1
3
5
dB
G
b
4
6
8
dB
Y Signal to Noise Ratio
50
55
60
dB
Chroma Section 1 (PAL/NTSC)
ACC Output Characteristics
e300
Input rainbow signal whose burst and chroma
260
370
520
mV
PP
e100
signal level is 300mV
PP
and 100mV
PP
.
Measure sugnal amplitude at Pin41.
260
370
520
mV
PP
ACC Flatness
3300/e100
0.9
1.0
1.1
KillerOn Level
PAL
Input color bar signal. Measure burst amplitude
0.2
0.5
1.0
mV
PP
NTSC
at which color begins to disappear when burst is
gradually reduced.
0.2
0.5
1.0
mV
PP
KillerOff Level
PAL
Input color bar signal. Measure burst amplitude
1.0
2.5
4.0
mV
PP
NTSC
at which color begins to be tinted when burst is
gradually increased from 0.
1.0
2.5
4.0
mV
PP
APC PullIn Range
3.58MHz
f
o
= 3.579545MHz
300
500
1000
Hz
4.43MHz
f
o
= 4.433619MHz
300
500
1000
Hz
M PAL
f
o
= 3.575611MHz
300
500
1000
Hz
VCXO Freq Control Sensitivity
4.43MHz
Fix Xtal mode with bus. Measure frequency
1.7
2.4
3.2
Hz/mV
3.58MHz
changes at TP28 when varying TP26 voltage
from 6.2V to 6.3V.
1.5
2.2
3.0
Hz/mV
M PAL
from 6.2V to 6.3V.
1.8
2.5
3.3
Hz/mV
f
sc
Output Amplitude
4.43MHz
Fix X'tal mode with bus. Measure signal
130
150
170
mV
PP
3.58MHz
amplitude at TP28.
120
140
160
mV
PP
f
sc
Output Voltage
4.43MHz
Fix X'tal mode with bus. Measure DC voltage at
3.6
3.9
4.2
V
3.58MHz
TP28.
2.8
3.1
3.4
V
BY Output Amplitude
4PAL
Input rainbow signal. Measure signal amplitude
260
370
520
mV
PP
3NTSC
at Pin41.
260
370
520
mV
PP
AC Characteristics (Cont'd): V
CC
= 9V, Logic V
CC
= 3.3V, T
A
= +25
C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Chroma Section 1 (Cont'd) (PAL/NTSC)
RY Output Amplitude
4PAL
Input rainbow signal. Measure signal amplitude
220
315
440
mV
PP
3NTSC
at Pin40.
220
315
440
mV
PP
Relative Amplitude
4PAL
Input rainbow signal. Measure (RY)/(BY).
0.73
0.8
0.9
3NTSC
0.73
0.8
0.9
Relative Phase
4PAL/4NTSC
Input rainbow signal. Measure
q
(RY)/
q
(BY).
85
90
95
DEG
3NTSC
85
90
95
DEG
Chroma Demodulation Bandwidth
0.5
0.8
1.5
MHz
Residual Carrier Level
BY
Measure residual carrier waves (f
sc
frequencies)
0
3
5
mV
PP
RY
on Pin40 and Pin41.
0
3
5
mV
PP
Residual Harmonics Level
BY
Measure residual higher harmonics (double the
0
20
30
mV
PP
RY
f
sc
frequency) on Pin40 and Pin41.
0
20
30
mV
PP
TINT Control
TINT Maximum
Input NTSC rainbow signal. Measure TINT of
27
32
39
DEG
TINT Center
data = 00H, 40H, and 7FH. TINT 0
is when
the 6th bar of BY is maximum.
12
4
+8
DEG
TINT Minimum
the 6th bar of BY is maximum.
39
44
49
DEG
PAL/NTSC Color Difference
Amplitude Adjustment Gain
2
1
0.5
dB
Identification Output
PAL
Measure output voltage from Pin39.
8.0
8.3
8.6
V
SECAM
4.3
4.6
4.9
V
NTSC
0.0
0.1
0.4
V
Chroma Section 2 (SECAM)
Color System Identification Mode
Switch Threshold Voltage
Measure voltager at Pin44 at which SECAM signal
becomes unable to be demodulated when the DC
voltage applied to TP44 is varied from 6V to 0V.
4.7
5.0
5.3
V
ACC Characteristics
Input Id 150mV
PP
V
32
= 1V. Measure ident amplitude at Pin28
220
280
340
mV
PP
Input Id 50mV
PP
220
280
340
mV
PP
KillerOn Level
Ident Data = 0
Input color bar signal. Measure burst amplitude
0.1
1.0
3.0
mV
PP
Ident Data = 1
at which color begins to disappear when burst is
gradually reduced.
0.1
1.0
3.0
mV
PP
BY Output Amplitude
Input color bar signal. Measure output amplitude
at Pin41.
400
580
750
mV
PP
RY Output Amplitude
Input color bar signal. Measure output amplitude
at Pin40.
450
680
950
mV
PP
BELL Monitor Switch Threshold
Voltage
1.5
1.8
2.1
V
BELL Filter Characteristics
Ident Ratio
0.9
1.0
1.1
Cyan Bar
1.00
1.15
1.30
Yellow Bar
1.10
1.25
1.40
AC Characteristics (Cont'd): V
CC
= 9V, Logic V
CC
= 3.3V, T
A
= +25
C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Chroma Section 2 (Cont'd) (SECAM)
BELL Filter f
o
Control Range
Data = 07
70
105
140
kHz
Data = 00
175
140
105
kHz
PLL PullIn Range
High
4.75
5.0
5.5
MHz
Low
3.0
3.7
3.9
MHz
Black Level Offset Voltage
15
0
+15
mV
Black Level Offset Adjustment
Maximum
19
24
29
mV
Minimum
31
28
25
mV
SECAM Color Difference Amplitude
1.0
1.8
2.5
dB
Adjustment Gain
2.0
1.0
0.5
dB
0.5
0
+0.5
dB
0.5
1.0
1.5
dB
TEXT/Matrix Section
RGB Maximum Output
Measure maximum output voltage from Pin16
when WPL is OFF
7.3
7.7
8.8
V
Color Difference Input Dynamic
Range
Measure input dynamic range at Pin37 and
Pin38
1.6
2.0
2.3
V
PP
Relative Amplitude
Input PAL rainbow signal. Measure G/B in the
color difference output mode selected by bus on
RGB output pins.
0.31
0.37
0.42
Relative Phase
Input PAL rainbow signal. Measure
q
(G)
q
(B)
in the color difference output mode selected by
bus on RGB output pins.
230
237
245
DEG
Color Control Characteristics
Maximum Gain
18.0
19.5
21.0
dB
Center Gain
9
7
5
dB
Minimum Gain
80
50
40
dB
Maximum Gain Voltage
3.2
3.5
3.8
V
Minimum Gain Voltage
2.2
2.5
2.8
V
Contrast Control Characteristics
Maximum Gain
3.5
5.0
6.5
dB
Minimum Gain
16
14
12
dB
Maximum Gain Voltage
2.2
2.5
2.8
V
Minimum Gain Voltage
1.2
1.5
1.8
V
Brightness Control Characteristics
Maximum Voltage
No Y input (AC GND). Data = FFH. Measure DC
3.2
3.5
3.8
V
Center Voltage
voltage at Pin18 during trace period. Data = 80H.
Measure DC voltage at Pin18 during trace peri-
1.8
2.0
2.2
V
Minimum Voltage
od. Data = 00H. Measure DC voltage at Pin18
during trace period.
0.2
0.5
0.8
V
Control Voltage
Measure DC voltage at Pin18 during trace period
when V
53
= 1V.
0.7
1.0
1.3
V
Measure DC voltage at Pin18 during trace period
when V
53
= 1V.
2.7
3.0
3.3
V
Brightness Tracking
Measure DC voltage difference between R, G,
and B outputs of brightness data = 40H.
0.2
0
+0.2
V
WPL Voltage
Measure maximum output voltage from Pin18
when WPL is ON.
5.7
6.0
6.3
V
AC Characteristics (Cont'd): V
CC
= 9V, Logic V
CC
= 3.3V, T
A
= +25
C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
TEXT/Matrix Section (Cont'd)
Blanking Output Voltage
Measure output voltage from Pin18 during
blanking period.
0.3
0.5
0.8
V
Vertical Blanking Period
50Hz
Measure vertical blanking period width.
23
H
60Hz
18
H
Horizontal Blanking Threshold
Voltage
Measure lowest voltage at Pin9 which causes
horizontal blanking.
0.5
0.7
1.0
V
Horizontal Blanking Delay Time
Measure blankingon delay time.
0.0
0.1
0.3
s
Measure blankingoff delay time.
0.1
0.3
0.5
s
External Blanking Threshold Current
Measure minimum input current to Pin64 which
causes blanking.
300
330
400
A
Mute Output Voltage
1.7
2.0
2.3
V
Mute Switch Threshold Voltage
4.7
5.0
5.3
V
External TEXT Input Dynamic
Range
Measure input dynamic range on Pin22, Pin23,
and Pin24.
1.0
1.5
V
PP
External TEXT Contrast Control
Maximum Gain
Input signal 3 (V
im
= 0.1V
PP
) to TP24. Measure
15
16
18
dB
Center Gain
output amplitude at Pin18 when data = 7FH,
40H, and 00H as V . Gain = 20log (V /0.1).
12.0
13.5
15.0
dB
Minimum Gain
40H, and 00H as V
18
. Gain = 20log (V
18
/0.1).
7
4
2
dB
External TEXT Rising Time
Load capacitance is 10pF. Adjust contrast data
10
25
50
ns
External TEXT Falling Time
so that RGB output amplitude is 1V
PP
.
10
25
50
ns
External TEXT Output Delay Time
10
25
50
ns
External TEXT Switching Delay
Time
10
25
50
ns
TV/TEXT Switching Voltage
0.7
1.0
1.3
V
Crosstalk
TV
TEXT
45
55
dB
TEXT
TV
45
55
dB
External TEXT Bandwidth
12
15
20
MHz
All White Mode Output Voltage
R Output
Select allwhite mode by bus. Measure R, G,
3.6
3.8
4.0
V
PP
G Output
and B amplitudes during trace period.
3.5
3.7
3.9
V
PP
B Output
3.6
3.8
4.0
V
PP
Sync. Section
Horizontal Sync Separation Level
30
35
40
%
Sync Separation Input Sensitivity
10
18
25
A
Horizontal Free Running Frequency
measure H.out frequency when no sync input
and no FBP input.
15.50 15.62
15.75
kHz
AFC1 PullIn Range
High
Center frequency is f
H
= 15.625Hz
500
750
1000
Hz
Low
500
750
1000
Hz
Horizontal Oscillation Frequency
Control Range
14.70 15.62
16.90
Hz
Horizontal Oscillation Frequency
Control Sensitivity
2.0
2.3
2.6
kHz/V
AFC1 Detection Current
250
350
450
A
AC Characteristics (Cont'd): V
CC
= 9V, Logic V
CC
= 3.3V, T
A
= +25
C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Sync. Section (Cont'd)
AFC1 Stop Period
50Hz
Observe Pin2 to measure the period while AFC1
308
6
H
60Hz
does not operate.
258
6
H
Horizontal Oscillation Starting
Voltage
3.5
4.0
4.5
V
Horizontal Output Starting Voltage
4.0
4.5
5.0
V
Horizontal Output Duty Cycle
Measure duty cycle = (High period) / (1H period)
at Pin6
38
41
44
%
Horizontal Output Voltage
High
Measure high voltage at Pin6
4.7
5.0
5.3
V
Low
Measure low voltage at Pin6
0
0.3
V
AFC2 Control Range
14
15
16
s
Horizontal Phase Adjustment Range
2.0
2.5
3.0
s
Vertical Free Running Frequency
Measure output frequency at Pin64 when no
sync signal input.
50/60
Hz
Vertical PullIn Range
240.5
352.0
H
Vertical 60Hz Identification Range
240.5
288.0
H
Vertical Pulse Output Voltage
High
Measure high voltage at Pin64.
4.2
4.5
4.8
V
Low
Measure low voltage at Pin64
0
0.3
V
Vertical Blanking Pulse Output
Voltage
Measure middle voltage at Pin64
2.7
3.0
3.3
V
Vertical Output Delay Time
50Hz
4.25
4.75
5.25
H
60Hz
0.25
0.75
1.25
H
Vertical Output Phase Variable
Range
Sync input 60Hz, data = 000, 111
0
7
H
SCP Output Voltage
Clamp Gate Pulse Period
7.3
7.5
7.8
V
Horizontal Blanking Period
4.2
4.5
4.8
V
Vertical Blanking Period
2.2
2.5
2.8
V
FBP Input Terminal Voltage
High
Sink current into Pin9 is kept at 0.1mA when
1.1
1.5
1.8
V
Low
measured. Mwasure high and low voltages at
Pin9.
0
0.3
V
Gate Pulse Width
1.8
2.0
2.2
s
V
P
Output
Video V
CC
Chroma V
CC
SECAM V
CC
BELL f
o
f
sc
Output
I
2
L/Horizontal Out GND
Horizontal V
CC
32f
H
VCO
Pin Connection Diagram
RY Input
Video GND
Sync Input
R Output
Horizontal Output
Gamma Voltage
QIF InputAPC
ACL
SCL
DAC Monitor
R Clamp
APL1
APL2
1
2
3
4
Vertical Separation
Horizontal AFC1
5
6
7
8
Horizontal AFC2
64
63
62
61
Black Detection
60
Video Input
59
58
57
9
FBP Input
56
FAA
P/N ACC
10
SCP Output
11
55
54
ABL
12
53
Y Clamp
13
SDA
52
3.58 Chroma Input
14
51
15
GND
50
PAL Ident
BY Input
External B Input
Chroma GND
3.58 X'tal
16
17
G Output
18
B Output
19
20
G Clamp
49
4.43 Chroma Input
48
B Clamp
47
46
45
M/N X'tal
21
TV/TEXT
44
4.43 X'tal
NTSC Ident
22
23
43
42
BY Output
24
41
RY Output
25
40
P/N/S Identification Output
26
39
27
38
SECAM Ident
BY DeEmphasis
SECAM ACC
28
37
29
36
SECAM Input
30
35
31
34
32
RY DeEmphasis
33
External R Input
External G Input
SECAM GND
I
2
L V
CC
TEXT V
CC
SECAM f
sc
2.270 (57.65) Max
1
32
64
33
.708 (18.0)
Min
.750 (19.0)
.236
(6.0)
Max
.106 (2.7) Min
.070 (1.78)
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