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STW5094A

更新时间： 2024-09-30 04:01:39
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 解码器编解码器放大器功率放大器
页数 文件大小 规格书
51页 557K
描述
18-bit Low Power Asynchronous Stereo Audio DAC with Integrated Power Amplifiers and Voice Codec

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STW5094A 数据手册

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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  
TFBGA 6x6 (36 pins)  
ORDER CODES: STw5094AD/LF, STw5094ADT/LF  
– 16 Ωload stereo headphones drivers, 8 Ω  
load mono loudspeaker driver for group  
listening  
■ Stereo audio DAC features  
■ Complete CODEC and filter system  
– Asynchronous sampling DAC: does not  
require oversampled clock and information  
on the audio data sampling frequency.  
Jitter tolerant  
– 14-bit linear or 8-bit companded ADC and  
DAC  
– Transmit and receive digital band-pass filters  
– Active antialias and smoothing filters  
– Multibit Σ∆ modulator with data weighted  
– 8 Ω load earpiece/loudspeaker driver,  
16 Ω load auxiliary driver  
■ Voice CODEC features  
averaging DAC  
– 92 dB dynamic range, 0.01% THD over 16 Ω  
load performance  
– Support 8 kHz or 16 kHz sampling rate  
– One microphone biasing output  
– Remote control function  
– Support any sampling frequency in the range  
8 kHz to 48 kHz  
– DSP functions for bass-treble-volume  
controls, deemphasis filter and dynamic  
compression  
– Three switchable microphone amplifier  
inputs. 42.5 dB range programmable gain  
– Tones from tone generator can be injected in  
the audio paths  
– Transient supression during power up and  
power down  
■ Stereo headphones and loudspeaker/earpiece  
power amplifiers features and stereo input for  
FM radio features:  
– Internal programmable sidetone  
– Internal ring, tone and dtmf generator  
– Programmable PWM buzzer driver  
■ General features  
– 20 kHz bandwidth stereo headphones  
outputs. Driving capability: 40 mW  
(typ. 0.1% T.H.D) over 16 Ωwith 40 dB range  
programmable gain  
– Single 2.7 V to 3.3 V supply  
– Extended temperature range operation 1  
– Balanced earpiece⁄ loudspeaker output.  
Driving capability: 300 mW (typ. 0.1% T.H.D)  
over 8 Ωwith 30dB range programmable gain  
– Analog stereo input for FM radio with 38 dB  
range programmable gain  
-40 °C to 85 °C  
– 1 µW 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.  
Rev. 2  
1/51  
December 2005  
.
1234567...51

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