ST5090 Datasheet PDF | STMicroelectronics

STMicroelectronics ST5090

ST5090 is a high performance low power combined PCM CODEC/FILTER device tailored to implement the audio front-end functions required by the next generation low voltage/low power consumption digital terminals. The PCM interface supports both non-delayed (normal and reverse) and delayed frame synchronization modes. ST5090 offers a number of programmable functions accessed through a serial control channel that easily interfaces to any classical microcontroller.

Part No.	ST5090
Datasheet	ST5090 Download
Manufacturer	STMicroelectronics
Description	LOW VOLTAGE 14-BIT LINEAR CODEC WITH HIGH-PERFORMANCE AUDIO FRONT-END
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FEATURES

: Complete CODEC and FILTER system including: 14 BIT LINEAR ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTERS. 8 BIT COMPANDED ANALOG TO DIGITAL AND DIGITAL TO ANALOG CONVERTERS A-LAW OR µ-LAW. TRANSMIT AND RECEIVE BAND-PASS FILTERS ACTIVE ANTIALIAS NOISE FILTER. Phone

FEATURES

: THREE SWITCHABLE MICROPHONE AMPLIFIER INPUTS. GAIN PROGRAMMABLE: 20 dB PREAMP. (+MUTE), 0 . . 22.5 dB AMPLIFIER, 1.5 dB STEPS. EARPIECE AUDIO OUTPUT. ATTENUATION PROGRAMMABLE: 0 . . 30 dB, 2 dB STEPS. EXTERNAL AUDIO OUTPUT. ATTENUATION PROGRAMMABLE: 0 . . 30 dB, 2 dB STEPS. TRANSIENT SUPRESSION SIGNAL DURING POWER ON AND DURING AMPLIFIER SWITCHING. INTERNAL PROGRAMMABLE SIDETONE CIRCUIT. ATTENUATION PROGRAMMABLE: 16 dB RANGE, 1 dB STEP. ROUTING POSSIBLE TO BOTH OUTPUTS. INTERNAL RING OR TONE GENERATOR INCLUDING DTMF TONES, SINEWAVE OR SQUAREWAVE WAVEFORMS. ATTENUATION PROGRAMMABLE: 27dB RANGE, 3dB STEP. THREE FREQUENCY RANGES: a) 3.9Hz . . . . 996Hz, 3.9Hz STEP b) 7.8Hz . . . . 1992Hz, 7.8Hz STEP c) 15.6Hz . . . .