NTE NTE1712

NTE1712
Integrated Circuit
Record Video Signal Processor for VCR
Description:
The NTE1712 is an integrated circuit in a 22–Lead DIP type package designed for use in VCR recording
video signal processing.
Features:
D Video AGC Circuit
D Pre–Emphasis Circuit
D Dynamic–Emphasis Circuit
D White/Dark Chip
D FM Modulator
D Supply Voltage: 5V
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +125°C
Electrical Characteristics: (VCC = 5V, TA = +25°C ±2°C unless otherwise specified)
Parameter
Circuit Current
AGC Output Amplitude
Sensitivity of AGC Control
Symbol
I7
uO22
DuO22
Test Conditions
V21 = VCC
Video Input 0.5Vp–p
Video Input 0.25 to 1.0Vp–p
Min
Typ
Max
Unit
7
–
22
mA
0.5
–
0.95
VP–P
–
–
2
dB
Video Amplifier Gain
GV20–18
9
–
14
dB
FB Amplifier Gain
GV’20–18
16
–
24
dB
PB Amplifier Gain
GV1–22
8
–
15
dB
EE/VV Switching Sensitivity
S21
2.5
–
–
V
Oscillating Frequency for FM Modulator
fO11
CO = 39pF, RO = 13kΩ
2.9
–
3.9
MHz
Warp of FM Modulator Oscillating Output
D2f11
CO = 39pF, RO = 13kΩ
–
–
–35
dB
Warp of FM Modulator Oscillating Output
Second High Frequency
uO11
CO = 39pF, RO = 13kΩ
0.6
–
1.2
VP–P
CO = 39pF, RO = 8.2 to 15kΩ
12
–
19
kHz/µA
Sensitivity of FM Modulator Frequency
Control
b11
Note 1. Operating Supply Voltage Range: VCC(opr) = 4.5V to 5.5V
Pin Connection Diagram
PB Video Input
AGC Detector
Rec Video Input
EE Adjust
H Sync Input
Pulse Timing Delay
VCC
FM Modulator
FM Modulator
White Clip Adjust
FM Modulator Output
22
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
EE Output
Rec/PB Select
Clamp Input
GND
Video Output
Non–Linear Emph
Clamp Input (PB)
Main Emph NF Input
Main Emph Output
Dark Clip Adjust
FM Modulator Input
12
.410
(11.41)
1
11
.400
(10.16)
1.300 (33.0)
.216
(5.5)
.100 (2.54)
1.000 (25.4)
.110 (2.79)