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NTE1231A Datasheet Preview

NTE1231A Datasheet

Integrated Circuit Complete 4 Watt TV Sound Channel

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NTE1231A pdf
NTE1231 & NTE1231A
Integrated Circuit
Complete 4 Watt TV Sound Channel
Description:
Capable of carrying out all of the functions of a TV sound channel, the NTE1231 and NTE1231A sili-
con monolithic integrated circuits consist of a six–stage IF amplifier/limiter, low–pass filter, differential
peak detector, DC volume control, regulated power supply, audio preamplifier, and output stage.
The audio power amplifier will deliver 4W of low–distortion audio to a 16load with a supply of 24V.
When used with a 12V supply, such as is found in many portable TV sets, these devices will furnish
1.5W to an 8loud speaker.
The NTE1231 is supplied in a quad in–line plastic package with a copper lead frame. This device is
designed to use the printed wiring board on which it is mounted for heat dissipation.
The NTE1231A is furnished in a 16–Lead DIP package with heat–sink contact tabs. The webbed lead
configuration (Pin4 & Pin5, Pin12 & Pin13) allows an inexpensive heat sink to be easily attached for
increased power dissipation capability and yet permits the use of a standard IC socket or printed wir-
ing board hole layout.
Features:
D High Sensitivity
D High AM Rejection
D DC Volume Control
D High Power Output
D Low Distortion
D Wide Operating Voltage Range: 9V to 28V
D Low Quiescent Current Drain
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V
Repetitive Peak Output Current, IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A
Power Dissipation, PD
Tpins = +90°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3W
TA = +70°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W
Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C



NTE
NTE

NTE1231A Datasheet Preview

NTE1231A Datasheet

Integrated Circuit Complete 4 Watt TV Sound Channel

No Preview Available !

NTE1231A pdf
Electrical Characteristics: (TA = +25°C, fo = 4.5MHz, fm = 400Hz, fd = ±7.5kHz, VCC = 12V,
RL = 8, Vin = 1mV unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Quiesecnt Output Voltage
Quiescent Supply Current
Input Limiting Threshold
AM Rejection
SignaltoNoise Ratio
Recovered Audio
Output Distortion
Output Power
Power Supply Rejection
Input Resistance
Input Capacitance
VOUT Vin = 0
5.1 6.0 6.9 V
ICC RX = 22k, Vin = 0
19 33 mA
VTH RX = 0
40 100 µV
AMR fd = ±25kHz, m = 0.3
40 55 dB
S + N/N POUT = 0.5W, fd = ±25kHz
50 65 dB
Vout RX = 0
120 mV
THD POUT = 50mW
1.0 %
POUT THD = 2%, fd = ±25kHz
1.4 W
THD = 10%, fd = ±25kHz
1.5 W
PSR f = 120Hz, RX = 22k, RL = 446 dB
Rin 30 k
Cin 5 pF
Electrical Characteristics: (TA = +25°C, fo = 4.5MHz, fm = 400Hz, fd = ±7.5kHz, VCC = 24V,
RL = 16, Vin = 1mV unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Quiesecnt Output Voltage
Quiescent Supply Current
Input Limiting Threshold
AM Rejection
SignaltoNoise Ratio
Recovered Audio
Output Distortion
Output Power
Power Supply Rejection
Input Resistance
Input Capacitance
VOUT Vin = 0
11 12 13 V
ICC RX = 22k, Vin = 0
11 22 35 mA
VTH RX = 0
40 100 µV
AMR fd = ±25kHz, m = 0.3
40 55 dB
S + N/N POUT = 1W, fd = ±25kHz
50 65 dB
Vout RX = 0
120 mV
THD POUT = 50mW
0.75 %
POUT THD = 2%, fd = ±25kHz
3.5 W
THD = 10%, fd = ±25kHz
4.2 W
PSR f = 120Hz, RX = 22k, RL = 446 dB
Rin 30 k
Cin 5 pF


Part Number NTE1231A
Description Integrated Circuit Complete 4 Watt TV Sound Channel
Maker NTE
Total Page 3 Pages
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