NTE7148
Integrated Circuit
Color TV SingleChip Signal Processor
for NTSC Systems (PLL Detection)
Description:
The NTE7148 is an integrated circuit in a 52Lead DIP type package designed for use in color TVs
based on the NTSC (National Television System Committee) system with an onchip circuit for all VIF,
SIF, video, chroma, and deflection signal processing.
Functions and Features:
VIF
D
PLL Detection (High Video and Audio Quality)
D
HighGain VIF Amplifier
D
High Speed AGC
D
OnChip APC Time Constant Switch
SIF
D
Simultaneous Sound IN/OUT
D
Video/Audio Simultaneous Muting, or AudioOnly Muting Possible
AudioVisual Switch
D
Internal/External AudioVisual Switch (V
CC
= 9V)
Delay Line
Video External, Audio External
Switch Rating
OFF
IN
6.9V to 9.0V
OFF
EXT
4.7V to 6.6V
ON
EXT
2.4V to 4.3V
ON
IN
0V to 2.1V
OSD
D
RGB 3 Input
D
RGB Linear Amplifier (6dB Input: 2V to 5V)
D
Fast Blanking (B Input Combined Use)
Chroma
D
OnChip ACC Filter
D
OnChip Killer Filter
D
KillerCircuit Hysteresis Operation
D
OnChip Carrier Filter
Video
D
Black Enhancement
D
DC Playback
D
OnChip Delay Line
D
Wideband Width (9MHz): Delay Line Short
D
Dual Rank OnChip Differential Circuit Also
Available for Soft Also
D
S Input Supported (VCR Application)
D
Variable DC Transmission Volume Available
Deflection
D
AdjustmentFree Horizontal, Vertical Synchronization
D
Dual AFC System with Excellent AntiNoise Characteristics
D
External Adjustmant of Vertical Synchronization Sensitivity
D
Vertical Size is Constant with NoSignal
D
Highly Stable Image During Playback of Copy Protected tapes (MacroVision Tape etc.)
D
High Stability Against VCR Skew Distortion
Absolute Maximum Ratings: (T
A
= +25
C unless otherwise specified)
Maximum Supply Voltage, V
11
max
11V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Supply Voltage, V
14
max
11V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Supply Current, I
30
max
16mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Current, I
44
6mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Current, I
6
3mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FBP Input Current (Peak Current), I
22
max
5mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FBP Input Current (Peak Current), I
21
max
10mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Dissipation (T
A
+60
C), P
D
max
1.35W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
10
to +65
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
55
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Operating Conditions: (T
A
= +25
C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
V
11
9
V
V
14
9
V
Supply Current
I
30
13
mA
Operating Voltage Range
V
11
op
8.0
9.5
V
V
14
op
8.0
9.5
V
Operating Current Range
I
30
op
10
16
mA
Electrical Characteristics: (T
A
= +25
C, V
CC
= V
11
= V
14
= 9V, I
CC
= I
30
= 13mA unless otherwise
specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Circuit Voltage and Current
Horizontal Supply Voltage
V
30
V
CC
= 9V, I
CC
= 13mA
7.3
7.8
8.3
V
Supply Current
I
11 + 14
V
CC
= 9V, I
CC
= 13mA, I
F
AGC 4V
102
120
138
mA
VIF
Quiescent Video Output Voltage
V
44
Quiescent
4.3
4.7
5.1
V
Quiescent AFT Output Voltage
V
47
Quiescent
3.1
4.7
6.1
V
Maximum RF AGC Voltage
V
49H
CW = 85dB
, RF AGC VR = Min
7.6
8.0
8.3
V
Minimum RF AGC Voltage
V
49L
CW = 85dB
, RF AGC VR = Max
0
0.01
0.3
V
Input Sensitivity
V
i
VIF input level for video output at
0.9V
PP
(40% MOD)
33
39
45
dB
AGC Range
GR
Max input (V
0
= 0.8V
PP
) input sensitivity
54
62
70
dB
Maximum Permissible Input
V
i
max
VIF input level for video output at +1dB
97
104
111
dB
Video Output Detection
V
O
44
V
i
= 80dB
, AM = 78% MOD
1.7
2.0
2.3
V
PP
Differential Gain
DG
V
i
= 80dB
, AM = 87.5%, video MOD
3.0
10
%
Differential Phase
DP
V
i
= 80dB
, AM = 87.5%, video MOD
1.0
10
DEG
Video S/N
S/N
1.46 (V
PP
)
noise (V
rms
)
V
i
= 80dB
, 20 log
47
54
61
dB
Synchronization Signal Tip Level
V
44
TIP CW = 80dB
2.1
2.4
2.7
V
Frequency Characteristics
f
C
Frequency at video output of 3dB
6
9
12
MHz
9200kHz VIF Intermodulation
I
920
V3.58MHz/V920kHz, V
i
= 80dB
35
42
49
dB
Electrical Characteristics (Cont'd): (T
A
= +25
C, V
CC
= V
11
= V
14
= 9V, I
CC
= I
30
= 13mA unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
VIF (Cont'd)
Maximum AFT Output Voltage
V
47H
CW = 80dB
, frequency change
8.3
8.7
9.0
V
Minimum AFT Output Voltage
V
47L
CW = 80dB
, frequency change
0.1
0.3
0.8
V
AFT Detection Sensibility
S
f
CW = 80dB
, frequency change
45
70
100
mV/kHz
AFT Switch Operation Start
Voltage
V
AFTSW
Measuring with sweep signal
0.5
1.0
1.5
V
Black Noise Threshold Level
V
BTH
Measuring with sweep signal
1.1
1.4
1.7
V
APC PullIn Range (U)2
f
PU2
CW = 80dB
, f
P
= 53MHz to 64MHz
0.8
1.7
4.0
MHz
APC PullIn Range (L)2
f
PL2
CW = 80dB
, f
P
= 53MHz to 64MHz
2
1
MHz
VCO Maximum Variable Range
f
U
Quiescent
0.9
1.7
4.0
MHz
f
L
Quiescent
4
2
1
MHz
VCO Control Sensitivity
Quiescent
1.5
3.0
5.5
kHz/mV
AudioVisual Switches
Video Output DC Voltage
V
38
Quiescent
3.0
3.4
3.8
V
Internal Video Input Voltage
V
42
Quiescent
4.4
4.8
5.2
V
External Video Input Voltage
V
40
Quiescent
4.4
4.8
5.2
V
External Audio Input Voltage
V
3
Quiescent
5.2
5.6
6.0
V
SIF AF
SIF Limiting Voltage
V
i
lim
SIF output level for detection output
at 3dB
33
40
47
dB
FM Detection Output Voltage
V
O
1
V
i
= 100dB
,
f =
25kHz
440
550
670
mV
rms
FM Detection Output Distortion
Ratio
THD
V
i
= 100dB
,
f =
25kHz
0
0.4
1.0
%
AM Rejection
AMR
FM:
f =
25kHz
AM: 30%
V
i
= 80dB
,
40
60
80
dB
AF Amplifier Voltage Gain
G
AF
V
i
= 100mV
rms
, f = 400Hz
18
20
22
dB
AF Maximum Output Voltage
V
o
6 max
Output level for AF amplifier output
distortion at 10%
2.0
2.8
3.6
V
rms
AF Electronic Attenuator Range
ATT
V
i
= 200mV
rms
, f = 400Hz
70
80
100
dB
Video
Black Enhancement Threshold
B
STH
APL variable
40
50
60
IRE
Maximum Black Enhancement
Gain
B
S
max
APL variable
35
27
20
IRE
Soft Video Tone Variable Range
Soft
f = 2MHz, 100mV
PP
,
video tone VR: 4V
0V
6
4
2
dB
Sharp Video Tone Variable
Range
Sharp
f = 2MHz, 100mV
PP
,
video tone VR: 4V
9V,
contrast VR: 6V
7
10
13
dB
Video Voltage Gain AudioVisual
Switch 9V
GV9V
f = 100MHz, 100mV
PP
contrast VR: 9V, video, tone VR: 4V
15
18
21
dB
Video Voltage Gain AudioVisual
Switch 0V
GV0V
f = 100MHz, 100mV
PP
,
contrast VR: 0V, video tone VR: 4V
15
18
21
dB
Electrical Characteristics (Cont'd): (T
A
= +25
C, V
CC
= V
11
= V
14
= 9V, I
CC
= I
30
= 13mA unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Video (Cont'd)
Contrast Control Center
C
CEN
f = 100MHz, 100mV
PP,
contrast VR: 6V
0.40
0.48
0.57
V
PP
Contrast Variable Control Range
C
V
Contrast VR: 3V
9V
18
20
22
dB
Bright Control
B R
H
Bright VR: 2V
5.5
6.5
7.5
V
B R
CEN
Bright VR: 4.5V
3.1
3.6
4.1
V
B R
L
Bright VR: 7.5V
0.3
1.2
V
D.L. Off Frequency
Characteristics
f
V
9V
Contrast VR: 6V, video tone VR: 4V,
3dB down
7
8
MHz
D.L. On Frequency
Characteristics
f
V
0V
Contrast VR: 6V, video tone VR: 4V,
3dB down
2.5
3.0
4.0
MHz
DC Transmission
R
DC
Input: stair step signal, 500mV
PP
100
103
106
%
Delay Line Delay
T
DL
Input: white 100%
290
340
390
ns
Chroma
ACC Amplitude Characteristics
A
CC
1
+6dB
3
0
+3
dB
A
CC
2
20dB
7
0
+2
dB
ACC Phase Characteristics
A
CCP
1
+6dB
3
0
+3
C
A
CCP
2
20dB
7
0
+7
C
Killer Operation Point
E
K
35
28
21
dB
Color Control Color Residual
E
C
min
Color VR: 0V, contrast VR: 9V
50
mV
PP
Color Control Center
E
C CEN
Color VR: 4.5V, contrast VR: 6V
1.2
1.8
2.4
V
PP
Maximum Demodulator Output
E
C
max
Color VR: 9V, contrast VR: 9V
3.2
4.0
4.8
V
PP
Color Contrast Variable Range
C
C
Color VR: BY = 2.5V
PP
,
contrast VR: 3V
9V
17.5
19.5
21.5
dB
Tint Color Center
T
CEN
Tint VR: 4.5V, color VR: 4.5V,
contrast VR: 6V
0
12
24
C
Tint Variable Range
T
Tint VR: 0V
4.5V
8V,
color VR: 4.5V, contrast VR: 6V
40
55
70
C
APC PullIn Range
f
APC
300
500
Hz
Demodulator Output Ratio
R/B
Monochrome signal, contrast VR: 6V,
0.81
0.90
0.98
G/B
color VR: BY = 1V
PO
0.24
0.30
0.38
Demodulator Phase Angle
RB
97
105
113
DEG
GB
130
120
110
DEG
Demodulator Output DC Voltage
V
CY
Burst signal only, color VR: 0V
4.7
5.2
5.7
V
Demodulator Output DC Offset
Voltage
V
CY
Burst signal only, color VR: 0V
200
0
+200
mV
Demodulator Output Residual
Carrier
E car
Quiescent, killer off, color VR: 0V
0.05
V
PP
OSD
Blanking Pulse Threshold Level
TH
BL
C IN: color bar, B IN: variable
0.5
0.8
1.1
V
Y Out DC Voltage (OSD Mode)
V
Y
B IN: 1.5V
2.5
2.8
3.1
V
Electrical Characteristics (Cont'd): (T
A
= +25
C, V
CC
= V
11
= V
14
= 9V, I
CC
= I
30
= 13mA unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
OSD (Cont'd)
RGB In Threshold Level
TH
R
R IN: variable, B IN: 1.5V
1.9
2.2
2.5
V
TH
G
G IN: variable, B IN: 1.5V
TH
B
B IN: variable
RGB Y Out DC Voltage (3V)
V
R3V
R, G, B IN: 3V
5.2
5.5
5.8
V
V
G3V
V
B3V
RGB Y Out DC Voltage (4V)
V
R4V
R, G, B IN: 4V
5.7
6.0
6.3
V
V
G4V
V
B4V
RGB Y Out DC Voltage (5V)
V
R5V
R, G, B IN: 5V
6.2
6.5
6.8
V
V
G5V
V
B5V
Deflection
Sync Separator Input DC Level
V
SDC
6.0
6.3
6.6
V
Vertical FreeRunning Period
T
V
free
262.0 262.5 263.0
H
Maximum Vertical
Synchronization Period
T
V
max
Input: horizontal synchronization signal only
296.5 297.0 297.5
H
Minimum Vertical
Synchronization Period
T
V
min
224.5 225.0 225.5
H
Vertical Blanking Pulse Width
P
W VBL
20.25 20.50 20.75
H
Vertical Blanking Pulse Wave
Height Value
P
H VBL
7.0
7.5
V
Vertical Output Pulse Width
P
W VOUT
8.25
8.50
8.75
H
Vertical Output Voltage
V
OUT H
5.7
6.0
6.3
V
V
OUT M
4.2
4.5
4.8
V
V
OUT L
0.1
0.3
V
Vertical External Trigger Load
Resistance
R
TR
2.7
3.6
k
Vertical Automatic
Synchronization Stop Voltage
V
SAS
1.9
2.4
V
Vertical Output Pulse Start
V
CC
Voltage
S
VV
3
4
V
Horizontal FreeRunning
Frequency Deviation
f
H
Deviation from 15.734kHz
90
+30
+150
Hz
Horizontal PullIn Range
f
H PULL
Deviation from 15.734kHz
400
500
Hz
Horizontal Output Pulse Width
P
WH OUT
21.8
23.8
25.8
s
Horizontal Output Pulse Phase
H
PF
15
17
19
s
H
P CEN
3.4
4.4
5.4
s
H
PR
0
3
6
s
Horizontal Output Pulse Start
V
CC
Voltage
S
HV
4.5
5.3
V
Electrical Characteristics (Cont'd): (T
A
= +25
C, V
CC
= V
11
= V
14
= 9V, I
CC
= I
30
= 13mA unless
otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Deflection (Cont'd)
AFC II FBP Peak Voltage
F
BPH
4.1
4.6
5.1
V
Burst Gate Pulse Delay Time
Td
BGP
0.2
0.6
1.2
s
Burst Gate Pulse Width
P
W BGP
2.7
3.7
4.7
s
VCR SW Input Voltage
VCR
1.3
2.0
V
XRay Protector Circuit
Operation Input Voltage
V
HD
0.64
0.74
0.84
V
Horizontal Synchronization
Detection Threshold Level
H coin
4.2
4.5
4.8
V
Horizontal Output Current
H
OUT
I
CC
= 13mA
3.8
4.7
5.5
mA
Horizontal V
CC
V
CC
(Jungle Video Chroma)
Pin Connection Diagram
V
CC
(VIF SIF)
Video Output 1
AFC Filter
CE Filter
GND (VIF SIF)
Audio NFB
VCO Coil
AFT Output
Video Output 2
APC Filter
AFT Coil
AFT Coil
1
2
3
4
DeEmphasis
IF AGC Filter 1
External Audio Input
Discriminator/Mute
5
6
Audio Output
7
8
VIF Input
52
51
50
49
APC Filter
VCO Coil
AGC Output
48
SIF Input
47
46
45
9
IF AGC Filter 2
44
AV Switch
Internal Video Input
10
11
43
42
Tint VR/Service Sw
12
41
External Video Input
13
X'tal
40
Contrast VR
14
39
15
R Input
38
Black Filter Output
Hold Down Input
Horiz Driver Output
Video Input/Black Filter Input
Videotone Input
16
G Input
17
B Input/Blanking Input
18
R Y Output
19
G Y Output
20
B Y Output
37
GND (Jungle Video Chroma Jungle)
36
Chroma Input/Color VR
35
34
33
Clamp Filter
21
Y Output
32
Brightness VR
22
FBP Input/BGP Output
23
31
30
Sync Input
24
29
Vertical Output
25
28
Horiz Coincidence Filter
26
27
RF AGC VR
1.813 (46.05) Max
.600 (15.24)
.512 (13.0)
.070 (1.77)
.217
(5.5)
Max
.118
(3.0)
Min
1.750 (44.5)
1
26
52
27
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