STA321 Datasheet, PDF (1/157 Pages) STMicroelectronics – 4-channel digital audio system with FFX™ driver

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
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. Device summary
Order code
Temperature range
STA321
0 to 70 °C
STA321TR
0 to 70 °C
Package
LQFP-64 EPD
LQFP-64 EPD
Packaging
Tray
Tape and reel
October 2009
Doc ID 15351 Rev 3
1/157
www.st.com
1