參數(shù)資料
型號(hào): TDA7531
廠商: STMICROELECTRONICS
元件分類(lèi): 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: TQFP-64
文件頁(yè)數(shù): 1/11頁(yè)
文件大小: 117K
代理商: TDA7531
18-Bit Resolution
Complete CMOS Audio converters
- Two stereo Sigma-Delta A/D converters
- Three stereo Sigma-Delta D/A converters
- Digital Anti-Alias Filtering
- Digital programmable I&O interface
- Switchable Internal PLL
- Analog Volume control and Mute
Adjustable System Sampling Rates including
32, 44.1 end 48 kHz
93dB D/A Dynamic Range (A-Weighted)
93dB A/D Dynamic Range (A-Weighted)
85dB D/A (THD+N/S)
85dB A/D (THD+N/S)
Internal Differential Analog Architecture
+3.3V Power Supply
Quartz Oscillator
DESCRIPTION
The TDA7531 is a codec for audio applica-
tion.The chip is composed by two AtoD stereo
converters, three DtoA stereo converters, a digital
programmable I&O interface, an analog volume
control, an oscillator and an analog PLL. The A to
D is a third order Sigma-Delta converter, the con-
verter resolutions is 18 bit with 93 dB of dynamic
This is preliminary information on a new product now in development. Details are subject to change without notice.
October 1998
Serial
Audio
Interface
Decimation
Filter
Decimation
Filter
Vol
Voltage Ref.
SC Filter
Xtal Osc
PLL
AOUT1L+
AOUT1L-
AOUT1R+
AOUT1R-
AOUT2L+
AOUT2L-
AOUT2R+
AOUT2R-
VREF-
VCM VREF+
XTI
XTO
CKIN CKOUT FILT
SS
MISO
MOSI
TEST1
TEST0
RESET
LRCKT
SCKT
SDO0
SDO1
LRCKR
SCKR
SDI0
SDI1
SDI2
DVDD0
DGND0
DVDD1
DGND1
D99AU1060
PLLVDD
PLLGND
AVDD1
AGND1
AVDD2
AGND2
SCK
Σ
Modulator
Σ
Modulator
Σ
Modulator
Σ
Modulator
Test I/F
RFIN+
RFIN-
LFIN+
LFIN-
RRIN+
RRIN-
LRIN+
LRIN-
Oversampling
Filter
Oversampling
Filter
Noise
Shaper
Noise
Shaper
Noise
Shaper
Vol
AVDD3
AGND3
I2C/SPI Control Port
CKSEL
AOUT0L+
AOUT0L-
AOUT0R+
AOUT0R-
Oversampling
Filter
SC Filter
BLOCK DIAGRAM
TQFP64
ORDERING NUMBER: TDA7531
TDA7531
32 to 48kHz AUDIO CODEC
PRODUCT PREVIEW
1/11
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