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Details, datasheet, quote on part number:NTE1231A
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Datasheet text preview:
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 silicon monolithic integrated circuits consist of a sixstage IF amplifier/limiter, lowpass filter, differential peak detector, DC volume control, regulated power supply, audio preamplifier, and output stage. The audio power amplifier will deliver 4W of lowdistortion audio to a 16 load 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 8 loud speaker. The NTE1231 is supplied in a quad inline 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 16Lead DIP package with heatsink 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 wiring 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
Electrical Characteristics: (TA = +25°C, fo = 4.5MHz, fm = 400Hz, fd = ±7.5kHz, VCC = 12V, RL = 8, Vin = 1mV unless otherwise specified)
Parameter 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 Symbol VOUT ICC VTH AMR S + N/N Vout THD POUT PSR Rin Cin Vin = 0 RX = 22k, Vin = 0 RX = 0 fd = ±25kHz, m = 0.3 POUT = 0.5W, fd = ±25kHz RX = 0 POUT = 50mW THD = 2%, fd = ±25kHz THD = 10%, fd = ±25kHz f = 120Hz, RX = 22k, RL = 4 Test Conditions Min 5.1 40 50 Typ 6.0 19 40 55 65 120 1.0 1.4 1.5 46 30 5 Max 6.9 33 100 Unit V mA µV dB dB mV % W W dB k pF
Electrical Characteristics: (TA = +25°C, fo = 4.5MHz, fm = 400Hz, fd = ±7.5kHz, VCC = 24V, RL = 16, Vin = 1mV unless otherwise specified)
Parameter 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 Symbol VOUT ICC VTH AMR S + N/N Vout THD POUT PSR Rin Cin Vin = 0 RX = 22k, Vin = 0 RX = 0 fd = ±25kHz, m = 0.3 POUT = 1W, fd = ±25kHz RX = 0 POUT = 50mW THD = 2%, fd = ±25kHz THD = 10%, fd = ±25kHz f = 120Hz, RX = 22k, RL = 4 Test Conditions Min 11 11 40 50 Typ 12 22 40 55 65 120 0.75 3.5 4.2 46 30 5 Max 13 35 100 Unit V mA µV dB dB mV % W W dB k pF
Pin Connection Diagram
IF Input IF Decoupling IF Decoupling 1 2 3 NTE1231 FM Detector FM Detector DC Volume Control 4 5 6 9 8 7 AF Output Compensation AF Feedback 12 DEEmphasis 11 Ripple Rejection 10 VCC IF Input IF Decoupling IF Decoupling GND GND FM Detector FM Detector DC Volume Control 1 2 3 4 5 6 7 8 NTE1231A 16 DEEmphasis 15 Ripple Rejection 14 VCC 13 GND 12 GND 11 AF Output 10 Compensation 9 AF Feedback
NTE1231
.247 (6.27)
12
7
.677 (17.2)
1
6
.770 (19.5) Max
.260 (6.6)
.233 (5.9) Max
.100 (2.54) .700 (17.78)
.099 (2.5) Min
NTE1231A
16 9 .260 (6.6) Max
1
8
.785 (19.9) Max .200 (5.08) Max .245 (6.22) Min
.300 (7.62)
.100 (2.54) .700 (17.7)
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