NTE1264
Integrated Circuit
Video AGC Circuit for VCR
Absolute Maximum Ratings:
(T
A
= +25°C unless otherwise specified)
Supply Voltage (V
12–4
), V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.6V
Supply Current, I
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45mA
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490mW
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperatue Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C
Electrical Characteristics:
(V
CC
= V
12–4
= 12V, T
A
= +25°C unless otherwise specified)
Parameter
Total Circuit Current
Video Signal Input Voltage
AGC Output Amplitude
AGC Control Sensitivity
AGC Circuit Gain
AGC Signal–to–Noise Ratio
AGC Frequency Chracteristics
Emphasis Gain
Emphasis LF Gain
AGC Distortion
Symbol
I
tot
V
11
A
AGC(7)
b
AGC(7)
G
AGC(7)
Gf
(7)
G
EH
G
EL
D
AGC
V
i
= 0.5V
P–P
f = 10kHz, –10 to +5dB, V
11
= 0.5V
P–P
(0dB)
f = 10kHz, V
i
= 0.1V
P–P
f
1
= 1MHz, f
2
= 5MHz, V
i
= 0.1V
P–P
f
1
= 10kHz, f
2
= 2MHz, V
i
= 0.3V
P–P
f = 10kHz, V
i
= 0.3V
P–P
f = 10kHz, V
i
= 0.5V
P–P
Test Conditions
Min
15
2
1.0
–
–
45
–
7.1
8
–
Typ Max Unit
25
3
1.3
0.5
22
50
0.5
8.0
10
0.5
38
4
1.8
1.0
–
–
–
8.5
12
1.5
mA
V
V
P–P
dB
dB
dB
dB
dB
dB
%
S/N
AGC(7)
Video Signal 0.15V
P–P