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WM8904ECS/R Folha de dados(PDF) 28 Page - Wolfson Microelectronics plc

Nome de Peças WM8904ECS/R
Descrição Electrónicos  Ultra Low Power CODEC for Portable Audio Applications
PDF  188 Pages
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Fabricante Electrônico  WOLFSON [Wolfson Microelectronics plc]
Página de início  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8904ECS/R Folha de dados(HTML) 28 Page - Wolfson Microelectronics plc

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WM8904
Pre-Production
w
PP, Rev 3.3, September 2012
28
TDM MODE
In TDM mode, it is important that two ADC devices do not attempt to drive the ADCDAT pin
simultaneously. The timing of the WM8904 ADCDAT tri-stating at the start and end of the data
transmission is described below.
Figure 4 Audio Interface Timing - TDM Mode
Test Conditions
AVDD = CPVDD = 1.8V , DGND=AGND=CPGND= =0V, TA = +25
oC, Master Mode, fs=48kHz, MCLK=256fs, 24-bit data, unless
otherwise stated.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Audio Data Timing Information
ADCDAT setup time from BCLK falling edge
DCVDD =2.0V
DBVDD =
3.6V
5
ns
DCVDD =
1.08V DBVDD
= 1.62V
15
ns
ADCDAT release time from BCLK falling edge
DCVDD =
2.0V DBVDD
= 3.6V
5
ns
DCVDD =
1.08V DBVDD
= 1.62V
15
ns



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