STA304 Datasheet, PDF (1/30 Pages) STMicroelectronics – DIGITAL AUDIO PROCESSOR WITH MULTICHANNEL DDX™

STA304
DIGITAL AUDIO PROCESSOR WITH MULTICHANNEL DDX™
PRODUCT PREVIEW
s END TO END DIGITAL AUDIO INTEGRATED
SOLUTION
s · DSP Functions:
- DIGITAL VOLUME CONTROL
- SOFT MUTE
- BASS and TREBLE
- PARAMETRIC EQ PER CHANNEL
- BASS MANAGEMENT FOR SUBWOOFER
- AUTO MUTE ON ZERO INPUT DETECTION
s 4+1 DIRECT DIGITAL AMPLIFICATION
(DDX™) OUTPUT CHANNELs
s 6 CHANNELs PROGRAMMABLE SERIAL
OUTPUT INTERFACE (by default I2S)
s 4 CHANNELs PROGRAMMABLE SERIAL
INPUT INTERFACE (by default I2S)
s STEREO S/PDIF INPUT INTERFACE
s Intel AC'97 LINK (rev. 2.1) INPUT INTERFACE
FOR AUDIO AND CONTROL
s ON CHIP AUTOMATIC INPUT SAMPLING
FREQUENCY DETECTION
s 100 dB SNR SAMPLE RATE CONVERTER
(1KHz SINUSOIDAL INPUT)
s I²C CONTROL BUS
s LOW POWER 3.3V CMOS TECHNOLOGY
TQFP44
ORDERING NUMBER: STA304
s EMBEDDED PLL FOR INTERNAL CLOCK
GENERATION (1024x48 kHz = 49.152 MHz)
s 24.576 MHz EXTERNAL INPUT CLOCK OR
BUILT-IN INDUSTRY STANDARD XTAL
OSCILLATOR.
1.0 DESCRIPTION
The STA304 Digital Audio Processor is a single chip
device implementing end to end digital solution for
audio application. In conjunction with STA500 power
bridge it gives the full digital DSP-to-power high qual-
ity chain with no need for audio Digital-to-Analog con-
verters between DSP and power stage.
BLOCK DIAGRAM
LRCKI / SYNC 3
BICKI / BIT_CL 4
SDI_1 / SDATA_OUT 1
SDI_2 / SDATA_IN 2
RXP 18
RXN 19
I2S
S/PDIF
SCL SDA
10 9
I2C
SRC
ROM
DSP
RESET 7
AC`97
RAM
PLL
DDX
I2S
PowerDown
29 LEFT_B
30 LEFT_A
27 RIGHT_B
28 RIGHT_A
33 SLEFT_A
34 SLEFT_B
23 SRIGHT_A
24 SRIGHT_B
21 LFE_A
22 LFE_B
43 LRCKO
43 BICKO
43 SDO_1
43 SDO_2
43 SDO_3
35 EAPD
11
14
15
43
44
XTI
XTO
CKOUT
PWDN
SA
January 2002
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
1/30