NTE NTE1792 Datasheet
NTE1792
Integrated Circuit
Dual Attenuator
Description:
The NTE1792 is a silicon monolithic integrated circuit in a 9–Lead SIP package designed for sound
control applications.
Features:
D Two separate attenuators
D The characteristic control curve is linear against logarithmic output.
D Channel Separation: 64dB MIN
D Typical Application: Sound MPX attenuator for TV, Radio and mobile receiver.
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, V
CC
Minimum 0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum 15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Signal Input Voltage at Pin4 and Pin6, V
in
Control Input Voltage at Pin2 and Pin8, V
Minimum 0V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum 15V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Dissipation (TS = +75°C), P
Operating Temperature Range, T
Storage Temperature Range, T
Electrical Characteristics
: (VCC = 12V, TA = +25°C, f = 1kHz unless otherwise specified)
Parameter
Supply Voltage V
Supply Current I
Relative Output A
Channel Separation S
D
opr
stg
Symbol Test Conditions Min Typ Max Unit
CC
CC
V
ep
Total Harmonic Distortion T.H.D. V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
cont
350mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–20° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–40° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8.0 12.0 14.4 V
No Signal 8.0 10.5 16.0 mA
V
= 1V, Vin = 500mV
cont
V
=5V, Vin = 500mV
cont
= 5V, Vin = 500mV
cont
rms
rms
rms
–2 0 +2 dB
64 70 – dB
– 0.5 1.0 %
3V
p–p
Power Source Noise Rejection R.R. Hum f = 60Hz,
H
Level = 1V
um
30 – – dB
p–p
Electrical Characteristics (Cont’d): (VCC = 12V, TA = +25°C, f = 1kHz unless otherwise specified)
Parameter
Symbol Test Conditions Min Typ Max Unit
Output Voltage 1 ATT
Output Voltage 2 ATT
Output Voltage 3 ATT
Input Resistance R
Output Resistance R
V
1
2
3
i
o
Pin Connection Diagram
= 5V, Vin = 500mV
cont
V
= 5V, Vin = 500mV
cont
V
= 5V, Vin = 500mV
cont
rms
rms
rms
f = 1kHz 12 – 24 kΩ
f = 1kHz 200 – 450 Ω
Reg V
9
8
Control 2
7
Output 2
Input 2
6
5 GND
Input 1
4
Output
CC
–1 0 +1 dB
–34 –30 –26 dB
– –77 –71 dB
Output 1
3
2
Control 1
1
V
CC
.900 (22.86)
19
.110 (2.79)
.226
(5.75)
Max
.125
(3.18)
.100 (2.54)
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