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ST5090ADTR Folha de dados(PDF) 1 Page - STMicroelectronics |
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ST5090ADTR Folha de dados(HTML) 1 Page - STMicroelectronics |
1 / 29 page ST5090 LOW VOLTAGE 14-BIT LINEAR CODEC WITH HIGH-PERFORMANCE AUDIO FRONT-END 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 AM- PLIFIER INPUTS. GAIN PROGRAMMABLE: 20 dB PREAMP. (+MUTE), 0 . . 22.5 dB AM- PLIFIER, 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 POSSI- BLE TO BOTH OUTPUTS. INTERNAL RING OR TONE GENERATOR IN- CLUDING DTMF TONES, SINEWAVE OR SQUAREWAVE WAVEFORMS. ATTENU- ATION 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 . . . . 3984Hz, 15.6Hz STEP PROGRAMMABLE PULSE WIDTH MODU- LATED BUZZER DRIVER OUTPUT. General Features: SINGLE 3.3V ±10% OR 5V ±10% SUPPLY SELECTABLE. EXTENDED TEMPERATURE RANGE OPERA- TION (*) -40 °Cto 85°C. 1.5 µW STANDBY POWER (TYP. AT 3V). 21 mW OPERATING POWER (TYP. AT 3V). CMOS COMPATIBLE DIGITAL INTERFACES. PROGRAMMABLE PCM AND CONTROL IN- TERFACE MICROWIRE COMPATIBLE. APPLICATIONS: GSM DIGITAL CELLULAR TELEPHONES. CT2 DIGITAL CORDLESS TELEPHONES. DECT DIGITAL CORDLESS TELEPHONES. BATTERY OPERATED AUDIO FRONT-ENDS FOR DSPs. (*) Functionality guaranteed in the range – 40 °C to +85°C; Timing and Electrical Specifications are guaranteed in the range –30 °C to +85°C. GENERAL DESCRIPTION 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. ST5090 offers a number of programmable func- tions accessed through a serial control channel that easily interfaces to any classical microcontroller. The PCM interface supports both non-delayed (nor- mal and reverse) and delayed frame synchroniza- tion modes. ST5090 can be configurated either as a 14-bit lin- ear or as an 8-bit companded PCM coder. Additionally to the CODEC/FILTER function, ST5090 includes a Tone/Ring/DTMF generator, a sidetone generation, and a buzzer driver output. ST5090 fulfills and exceeds D3/D4 and CCITT rec- ommendations and ETSI requirements for digital handset terminals. Main applications include digital mobile phones, as cellular and cordless phones, or any battery pow- ered equipment that requires audio codecs operat- ing at low single supply voltages This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. February 1996 TQFP44(10x10x1.4) SO28 ORDERING NUMBERS: Package Dim. Cond. ST5090AD ST5090ADTR ST5090TQFP ST5090TQFPTR SO28 SO28 TQFP44 TQFP44 10x10x1.4 10x10x1.4 Tube Tape&Reel Tray 8x20 Tape&Reel 1/29 |
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