STA321

STA321 4-channel digital audio system with FFX™ driver Features „ „ „ „ „ „ „ „ „ High efficiency FFX™ class-D modulator 100-dB dynamic range Two stereo channels with I2S input/output data interface 16-bit stereo ADC input with PGA and microphone biasing Analog and digital muxing/mixing capability 4-channel input sample rate converter (8 kHz to 192 kHz) Four channels of 24-bit audio processing Flexible channel mapping and routing Output configurations: – 2.0 – 2.1 – 4.0 – Mono Embedded CMOS bridge: up to 0.5 W/channel pfStart™ for pop-free single-ended operations Play and record simultaneous operation Pre and post mix stages Individual channel and master gain/attenuation Device summary Temperature range 0 to 70 °C 0 to 70 °C Package LQFP-64 EPD LQFP-64 EPD Tray Tape and reel Packaging „ „ „ „ „ „ „ „ „ „ LQFP-64 package with exposed pad down (EPD) Digital gain/attenuation -105 dB to +36 dB in 0.5-dB steps Soft volume update and muting DC-blocking selectable high-pass filter Selectable de-emphasis filter Up to 13 28-bit user programmable biquads (EQ) per channel Bass/treble tone control Ternary, binary or phase shift modulation PWM output Headphone output with jack detector I2C control. „ „ „ „ „ Table 1. Order code STA321 STA321TR October 2009 Doc ID 15351 Rev 3 1/157 www.st.com 1 Contents STA321 Contents 1 2 3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Pin description . . . . . . . . . . . . . . ....