參數(shù)資料
型號(hào): AD1838
廠商: Analog Devices, Inc.
元件分類: Codec
英文描述: 2 ADC, 6 DAC,96 kHz, 24-Bit Codec
中文描述: 2的ADC,6 DAC的,96千赫,24位編解碼器
文件頁數(shù): 16/24頁
文件大?。?/td> 424K
代理商: AD1838
REV. 0
AD1838
–16–
Table II. Pin Function Changes in Auxiliary Mode
Pin Name
I
2
S Mode
I
2
S Data Out, Internal ADC
I
2
S Data In, Internal DAC1
I
2
S Data In, Internal DAC2
I
2
S Data In, Internal DAC3
Not Connected
LRCLK for ADC
BCLK for ADC
LRCLK In/Out Internal DACs
Aux Mode
ASDATA (O)
DSDATA1 (I)
DSDATA2 (I)/AAUXDATA1 (I)
DSDATA3 (I)/AAUXDATA2 (I)
AAUXDATA3 (I)
ALRCLK (O)
ABCLK (O)
DLRCLK (I)/AUXLRCLK(I/O)
TDM Data Out to SHARC
TDM Data In from SHARC
AUX-I
2
S Data In 1 (from Ext. ADC)
AUX-I
2
S Data In 2 (from Ext. ADC)
AUX-I
2
S Data In 3 (from Ext. ADC)
TDM Frame Sync Out to SHARC (FSTDM)
TDM BCLK Out to SHARC
AUX LRCLK In/Out. Driven by Ext. LRCLK
from ADC in slave mode. In master mode,
driven by MCLK/512.
AUX BCLK In/Out. Driven by Ext. BCLK from
ADC in slave mode. In master mode, driven by
MCLK/8.
AUX-I
2
S Data Out (to Ext. DAC)
DBCLK (I)/AUXBCLK(I/O)
BCLK In/Out Internal DACs
DAUXDATA(O)
Not Connected
FSTDM
INTERNAL
ADC L1
AUX_ADC L2
AUX_ADC L3
AUX_ADC L4
INTERNAL
ADC R1
AUX_ADC R2
AUX_ADC R3
AUX_ADC R4
INTERNAL
DAC L1
INTERNAL
DAC L2
INTERNAL
DAC L3
INTERNAL
DAC R1
INTERNAL
DAC R2
INTERNAL
DAC R3
MSB TDM
CH
LEFT
RIGHT
I
2
S – MSB RIGHT
I
2
S – MSB LEFT
BCLK
TDM
ASDATA1
TDM (OUT)
ASDATA
DSDATA1
TDM (IN)
DSDATA1
AUX
LRCLK I
2
S
(FROM AUX ADC #1)
AUX
BCLK I
2
S
(FROM AUX ADC #1)
AAUXDATA1 (IN)
(FROM AUX ADC #1)
AAUXDATA2 (IN)
(FROM AUX ADC #2)
AAUXDATA3 (IN)
(FROM AUX ADC #3)
AUX BCLK FREQUENCY IS 64 FRAME RATE; TDM BCLK FREQUENCY IS 256 FRAME RATE.
T
A
2
S
MSB TDM
CH
32
32
MSB TDM
CH
MSB TDM
CH
I
2
S – MSB RIGHT
I
2
S – MSB LEFT
I
2
S – MSB RIGHT
I
2
S – MSB LEFT
AUX DAC L4
AUX DAC R4
Figure 11. Aux-Mode Timing
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