NTE NTE1712 Datasheet
NTE1712
Integrated Circuit
Record Video Signal Processor for VCR
Description:
The N TE1712 i s a n i ntegrated c ircuit i n a 2 2–Lead D IP t ype p ackage d esi gned for u se i n V CR 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, V
Power Dissipation, P
CC
D
Operating Temperature Range, T
Storage Temperature Range, T
stg
–20° to +70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
opr
–40° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
180mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (VCC = 5V, TA = +25°C ±2°C unless otherwise specified)
Parameter Symbol Test Conditions Min Typ Max Unit
Circuit Current I
AGC Output Amplitude u
Sensitivity of AGC Control Du
Video Amplifier Gain G
FB Amplifier Gain GV’
PB Amplifier Gain G
EE/VV Switching Sensitivity S
Oscillating Frequency for FM Modulator f
Warp of FM Modulator Oscillating Output D2f
Warp of FM Modulator Oscillating Output
Second High Frequency
Sensitivity of FM Modulator Frequency
Control
V20–18
V1–22
O11
u
b
Note 1. Operating Supply Voltage Range: V
V21 = V
7
Video Input 0.5V
O22
Video Input 0.25 to 1.0V
O22
20–18
21
CO = 39pF, RO = 13kΩ 2.9 – 3.9 MHz
CO = 39pF, RO = 13kΩ – – –35 dB
11
CO = 39pF, RO = 13kΩ 0.6 – 1.2 V
O11
CO = 39pF, RO = 8.2 to 15kΩ 12 – 19 kHz/µA
11
CC(opr)
CC
p–p
p–p
= 4.5V to 5.5V
7 – 22 mA
0.5 – 0.95 V
– – 2 dB
9 – 14 dB
16 – 24 dB
8 – 15 dB
2.5 – – V
P–P
P–P
Pin Connection Diagram
PB Video Input
AGC Detector
Rec Video Input
EE Adjust
Pulse Timing Delay
V
CC
FM Modulator
1
2
3
4
5H Sync Input
6
7
8
22
21
20
19
18
17
16
15
FM Modulator
White Clip Adjust
FM Modulator Output
10 13
11 12
22 12
EE Output
Rec/PB Select
Clamp Input
GND
Video Output
Non–Linear Emph
Clamp Input (PB)
Main Emph NF Input
Main Emph Output9 14
Dark Clip Adjust
FM Modulator Input
.410
(11.41)
111
1.300 (33.0)
.400
(10.16)
.216
(5.5)
.100 (2.54)
.110 (2.79)
1.000 (25.4)
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