NTE1689
Integrated Circuit
Head Amp Circuit for VCR
Features:
D
The Function Consist of:
Video Signal Pre鈥揂mplifier Circuit
Head Switchover Circuit
Drop鈥揙ut Compensation Circuit
RF AGC Circuit
D
Low鈥揘oise Head Amplifier
D
Supply Voltage: 5V
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Power Dissipation, P
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160mW
Operating Ambient Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +70擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +150擄C
Electrical Characteristics:
(V
CC
= 5V, T
A
= +25擄C unless otherwise specified)
Parameter
Circuit Current
Channel 1 Gain
Channel 2 Gain
AGC Output Amplitude
AGC Control Sensitivity
Output Amplifier Gain
DOC Amplifier Gain
DOC Sensitivity ON
DOC Sensitivity OFF
PG Input Sensitivity
Noise Voltage Referred to Input
Symbol
I
1
G
V4鈥?0
G
V8鈥?0
v
o(AGC鈥?2)
G
V13鈥?7
G
V18鈥?7
S
13鈥?
S
13鈥?
S
2
V
ni1
V
ni2
1MHz BPF
1MHz BPF
f = 1MHz
f = 1MHz
f = 4MHz
Test Conditions
Min
8
52.5
52.5
170
鈥?/div>
0.05
10.5
鈥?/div>
鈥?0.8
鈥?/div>
鈥?/div>
鈥?/div>
Typ
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Max
20
62.5
62.5
330
2.5
2.7
14.0
鈥?9
鈥?/div>
3
1
1
Unit
mA
dB
dB
mV
P鈥揚
dB
dB
dB
dB
dB
V
碌V
rms
碌V
rms
鈭唙
o(AGC鈥?2)
f = 4MHz
f = 4MHz
f = 4MHz
f = 4MHz
f = 4MHz
Note 1. Operating supply voltage range: V
CC
opr = 4.5V to 5.5V.
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