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STw5093
June 2000
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
FEATURES:
Complete CODEC and FILTER system including:
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14 BIT LINEAR ANALO G TO DIGITAL AND
DIGITAL TO ANALOG CONVERTERS.
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8 BIT COMPANDED ANALOG TO DIGITAL
AND DIGITAL TO ANALOG CONVERTERS ALAW OR µ-LAW.
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TRANSMIT AND RECEI VE BAN D- PASS
FILTERS
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ACTIVE ANTIALIAS NOISE FILTER.
Phone Features:
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ONE MICROPHONE BIASING OUTPUT
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REMOTE CONTROL (REMOCON) FUNCTION
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THR EE SWIT C H ABLE MICROPHO N E
AMPLIFIER INPUTS. GAIN
PROGRAMMABL E:0 . . 42.5 dB AMPLIFIER,
1.5 dB STEPS (+ MUTE).
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EARPIECE AUDIO OUTPUT. ATTENUATION
PROGRAMMA BLE: 0 . . 30 dB , 2 dB STE P S.
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EXTERNAL AUDIO OUTPUT. ATTENUATION
PROGRAMMA BLE: 0 . . 30 dB , 2 dB STE P S.
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DRIVING CAPABILITY: 140mW OVER 8
Ω
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TRANSIENT SUPRESSION SIGNAL DURING
POWER ON AND DURING AMPLIFIER
SWITCHING.
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INTERNAL PROGR AMMABLE SIDETONE
CIRCUIT. ATTENUATION PROGRAMMABLE:
16 dB RANGE, 1 dB STEP.
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INTERNAL RING, TONE AND DTMF
GENERATOR, 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 . . . . 3984Hz, 15.6Hz STEP
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PROGRAMMABLE PUL S E W IDTH
MODULATED BUZZER DRIVER OUTPUT.
General Features:
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SINGLE 2.7V to 3.3V SUPPLY
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EXTENDED TEMPERATURE RANGE
OPERATION (*) -40°C to 85°C.
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1.0µW STANDBY POWER (TYP. AT 2.7V).
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13mW OPERATING POWER (TYP. AT 2.7V).
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1.8V TO 3.3V CMOS COMPATIBLE DIGITAL
INTERFACES.
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PROGRAMMABLE PCM AND CONTROL
INTERFACE MICROWIRE COMPATIBLE.
APPLICATIONS:
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GSM/DCS1800/PCS190 0/JDC DIGITA L
CELLULAR TELEPHONES.
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CDMA CELLULAR TELEPHONES.
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DECT/CT2/PHS DIGITAL CORDLESS
TELEPHONES.
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BATTERY OPERATED AUDIO FRONT-ENDS
FOR DSPs.
(*) Func tio nalit y gu ara ntee d in the r ange - 4 0°C to +8 5° C; Ti min g
and Electrical Specifications are guaranteed in the range - 30°C
to +85°C.
GENERAL DESCRIPTION
STw5093 is a high performance low power combined
PCM CODEC/FILTER device tailored to implement the
audio front-end functions required by low voltage/low
power consumption digital cellular terminals. STw5093
offers a number of programmable functions accessed
through a serial control channel that easily interfaces to
any classical microcontroller. The PCM interface supports both non-delayed (normal and reverse) and delayed frame synchronization modes.
STw5093 can be configurated either as a 14-bit linear or as an 8-bit companded PCM coder.
Additionally to the CODEC/FILTER function, STw5093
includes a Tone/Ring/DTMF generat or, a sidetone generation, and a buzzer driver output.STw5093 fulfills and
exceeds D3/ D4 and CCITT r ecommend ations and ETSI
requirements for digital handset terminals.
Main applications include digital mobile phones, as
cellular and cordless phones, or any battery powered
equipment that requires audio codecs operating at
low single supply voltages.
TSSOP30
ORDERING NUMBER: STw5093
PRELIMINARY DATA
2.7V SUPPLY 14-BIT LINEAR CODEC WITH
HIGH-PERFORMANCE AUDIO FRONT-END