NTE1744
NTE1744 is Integrated Circuit Dual dbxII Noise Reduction System manufactured by NTE Electronics.
Description
: The NTE1744 is an integrated circuit in a 22- Lead DIP type package designed for use in dbx II noise reduction circuits for stereo applications. This device can be used for U.S. sound multiplex TV applications and low voltage operation (1.8V) allows the NTE1744 to be used in battery- operated Hi- Fi equipment. Features
: D Wide Dynamic Range: 110d B D Low Operating Voltage: VCCmin = 1.8V D Minimum Number of External ponents D Adjustment: Only One D Low Power Consumption D Wide Operating Voltage Range: VCC = 1.8V to 14V Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Supply Voltage, VCC
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- - . . 14.4V Supply Current, ICC
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- - . . . . 5m A Power Dissipation (TA = +75°C), PD
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- . . 100m W Operating Ambient Temperature range, Topr
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- 20° to +75°C Storage Temperature Range, Tstg
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- 55° to +150°C Electrical Characteristics: (TA = +25°C, VCC = 3V unless otherwise specified)
Parameter Input/Output Characteristics ENCODE Mode Symbol VOE- 1 VOE- 2 VOE- 3 DECODE Mode VOD- 1 VOD- 2 VOD- 3 Test Conditions VIN = +20d B, f = 1k Hz VIN = 0d B, f = 1k Hz VIN =
- 40d B, f = 1k Hz VIN = +10d B, f = 1k Hz VIN = 0d B, f = 1k Hz VIN =
- 20d B, f = 1k Hz Min +7.5
- 2.0
- 23 +17
- 2.0
- 44 Typ Max Unit d B d B d B d B d B d B
+10.0 +12.5 0
- 20 +20 0
- 40 +2.0
- 17 +23...
