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PCM3794ARHBR Datasheet(PDF) 1 Page - Texas Instruments |
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PCM3794ARHBR Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 70 page  BurrBrown Products from Texas Instruments FEATURES APPLICATIONS DESCRIPTION PCM3793A PCM3794A SLAS529A – JANUARY 2007 – REVISED FEBRUARY 2007 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier • 2 (I2C) or 3 (SPI) Wire Serial Control • Analog Front End: • Programmable Function by Register Control: – Stereo Single-Ended Input With Multiplexer – Digital Attenuation of DAC: 0 dB to –62 dB – Mono Differential Input – Digital Gain of DAC: 0, 6, 12, 18 dB – Stereo Programmable Gain Amplifier – Power Up/Down Control for Each Module – Microphone Amplifier (20 dB) and Bias – 6-dB to –70-dB Gain for Analog Outputs • Analog Back End: – 30-dB to –12-dB Gain for Analog Inputs – Stereo/Mono Line Output With Volume – 0/20 dB Selectable for Microphone Input – Stereo/Mono Headphone Amplifier With – 0-dB to –21-dB Gain for Analog Mixing Volume and Capless Mode – Parameter Settings for ALC – Stereo/Mono Digital Speaker Amplifier – Three-Band Tone Control and 3D Sound (BTL) With Volume – High-Pass Filter: 4-, 120-, 240-Hz • Analog Performance: – Two-Stage Programmable Notch Filter – Dynamic Range: 93 dB (DAC) – Analog Mixing Control – Dynamic Range: 90 dB (ADC) • Pop-Noise Reduction Circuit – 40-mW + 40-mW Headphone Output at • Short and Thermal Protection Circuit RL = 16 Ω • Package: 5-mm × 5-mm QFN Pacakge – 700-mW + 700-mW Speaker Output at • Operation Temperature Range: –40°C to 85°C RL = 8 Ω • Power Supply Voltage – 1.71 V to 3.6 V for Digital I/O Section • Portable Audio Player, Cellular Phone – 1.71 V to 3.6 V for Digital Core Section • Video Camcorder, Digital Movie/Still Camera – 2.4 V to 3.6 V for Analog Section • PMP/DMB – 2.4 V to 3.6 V for Power Amplifier Section • Low Power Dissipation: The PCM3793A/94A is a low-power stereo CODEC – 7 mW in Playback, 1.8 V/2.4 V, 48 kHz designed for portable digital audio applications. The – 13 mW in Record, 1.8 V/2.4 V, 48 kHz device integrates stereo digital speaker amplifier, – 3.3 µW in Power Down headphone amplifier, line amplifier, line input, boost • Sampling Frequency: 5 kHz to 50 kHz amplifier, microphone bias, programmable gain control, analog mixing, sound effects, and automatic • Automatic Level Control for Recording level control (ALC). It is available in a small-footprint, • Operation From a Single Clock Input Without 5-mm × 5-mm QFN package. The PCM3793A/94A PLL supports right-justified, left-justified, I2S, and DSP • System Clock: formats, providing easy interfacing to audio DSP and decoder/encoder chips. Sampling rates up to 50 kHz – Common-Audio Clock (256 fS/384 fS), 12/24, are supported. The user-programmable functions are 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz accessible through a two- or three-wire serial control • Headphone Plug Insert Detection port. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2007, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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