PCM3794A

BurrĆBrown Products from Texas Instruments PCM3793A PCM3794A SLAS529A – JANUARY 2007 – REVISED FEBRUARY 2007 16-Bit, Low-Power Stereo Audio CODEC With Microphone Bias, Headphone, and Digital Speaker Amplifier FEATURES Analog Front End: – Stereo Single-Ended Input With Multiplexer – Mono Differential Input – Stereo Programmable Gain Amplifier – Microphone Amplifier (20 dB) and Bias Analog Back End: – Stereo/Mono Line Output With Volume – Stereo/Mono Headphone Amplifier With Volume and Capless Mode – Stereo/Mono Digital Speaker Amplifier (BTL) With Volume Analog Performance: – Dynamic Range: 93 dB (DAC) – Dynamic Range: 90 dB (ADC) – 40-mW + 40-mW Headphone Output at RL = 16 Ω – 700-mW + 700-mW Speaker Output at RL = 8 Ω Power Supply Voltage – 1.71 V to 3.6 V for Digital I/O Section – 1.71 V to 3.6 V for Digital Core Section – 2.4 V to 3.6 V for Analog Section – 2.4 V to 3.6 V for Power Amplifier Section Low Power Dissipation: – 7 mW in Playback, 1.8 V/2.4 V, 48 kHz – 13 mW in Record, 1.8 V/2.4 V, 48 kHz – 3.3 µW in Power Down Sampling Frequency: 5 kHz to 50 kHz Automatic Level Control for Recording Operation From a Single Clock Input Without PLL System Clock: – Common-Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHz Headphone Plug Insert Detection 2 (I2C) or 3 (SPI) Wire Serial Control Programmable Function by Register Control: – Digital Attenuation of DAC: 0 dB to –62 dB – Digital Gain of DAC: 0, 6, 12, 18 dB – Power Up/Down Control for E...