參數(shù)資料
型號(hào): XWM8731EDS
廠商: Wolfson Microelectronics
元件分類(lèi): Codec
英文描述: Portable Internet Audion CODEC with Headphone Driver and Programmable Sample Rates
中文描述: 便攜式互聯(lián)網(wǎng)三極管編解碼器的耳機(jī)驅(qū)動(dòng)器和可編程采樣率
文件頁(yè)數(shù): 14/56頁(yè)
文件大?。?/td> 595K
代理商: XWM8731EDS
WM8731
Advanced Information
WOLFSON MICROELECTRONICS LTD
AI Rev 2.0 February 2001
14
DIGITAL AUDIO INTERFACE
SLAVE MODE
BCLK
ADCDAT
ADCLRC
DACDAT
DACLRC
WM8731
CODEC
DSP
ENCODER/
DECODER
Note: The ADC and DAC can run at different rates
Figure 5 Slave Mode Connection
BCLK
DACLRC/
ADCLRC
t
BCH
t
BCL
t
BCY
DACDAT
ADCDAT
t
LRSU
t
DS
t
LRH
t
DH
t
DD
Figure 6 Digital Audio Data Timing
Slave Mode
Test Conditions
AVDD, HPVDD, DBVDD = 3.3V, AGND = 0V, DCVDD = 1.5V, DGND = 0V, T
A
= +25
o
C, Slave Mode, fs = 48kHz, XTI/MCLK =
256fs unless otherwise stated.
PARAMETER
Audio Data Input Timing Information
BCLK cycle time
BCLK pulse width high
BCLK pulse width low
DACLRC/ADCLRC set-up
time to BCLK rising edge
DACLRC/ADCLRC hold
time from BCLK rising edge
DACDAT set-up time to
BCLK rising edge
DACDAT hold time from
BCLK rising edge
ADCDAT propagation delay
from BCLK falling edge
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
t
BCY
t
BCH
t
BCL
t
LRSU
50
20
20
10
ns
ns
ns
ns
t
LRH
10
ns
t
DS
10
ns
t
DH
10
ns
t
DD
0
10
ns
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