STW5094AD_LF| Datasheet

STW5094AD_LF, STW5094ADT_LF, STw5094A

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STw5094A
18-bit Low Power Asynchronous Stereo Audio DAC with Integrated Power Amplifiers and Voice Codec
FEATURES Complete stereo audio digital to analog converters and filters 18-bit, 8 kHz to 48 kHz DAC with sample-rate conversion Linear phase analog&digital filters 16 load stereo headphones drivers, 8 load mono loudspeaker driver for group listening

TFBGA 6x6 (36 pins) ORDER CODES: STw5094AD/LF, STw5094ADT/LF

Stereo audio DAC features Asynchronous sampling DAC: does not require oversampled clock and information on the audio data sampling frequency. Jitter tolerant Multibit modulator with data weighted averaging DAC 92 dB dynamic range, 0.01% THD over 16 load performance Support any sampling frequency in the range 8 kHz to 48 kHz DSP functions for bass-treble-volume controls, deemphasis filter and dynamic compression Tones from tone generator can be injected in the audio paths

Complete CODEC and filter system 14-bit linear or 8-bit companded ADC and DAC Transmit and receive digital band-pass filters Active antialias and smoothing filters 8 load earpiece/loudspeaker driver, 16 load auxiliary driver

Voice CODEC features Support 8 kHz or 16 kHz sampling rate One microphone biasing output Remote control function Three switchable microphone amplifier inputs. 42.5 dB range programmable gain Transient supression during power up and power down Internal programmable sidetone Internal ring, tone and dtmf generator Programmable PWM buzzer driver

Stereo headphones and loudspeaker/earpiece power amplifiers features and stereo input for FM radio features: 20 kHz bandwidth stereo headphones outputs. Driving capability: 40 mW (typ. 0.1% T.H.D) over 16 with 40 dB range programmable gain Balanced earpiece/ loudspeaker output. Driving capability: 300 mW (typ. 0.1% T.H.D) over 8 with 30dB range programmable gain Analog stereo input for FM radio with 38 dB range programmable gain

General features Single 2.7 V to 3.3 V supply Extended temperature range operation 1 -40 C to 85 C 1 uW standby power (typ. AT 2.7V). 16 mW operating power in audio listening mode (typ. at 2.7 V).

1.Functionality guaranteed in the range -40 C to +85 C; Timing and Electrical Spec. are guaranteed in the range -30 C to +85 C.

December 2005
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Rev. 2 1/51