AD1939 Analog Devices, AD1939 Datasheet - Page 14

• Manufacturer Part Number: AD1939
• Description: (AD1935 - AD1939) 4 ADC/8 DAC
• Manufacturer: Analog Devices

AD1935/AD1936/AD1937/AD1938/AD1939
(FROM AUX ADC 1)
(FROM AUX ADC 1)
(FROM AUX ADC 2)
(FROM AUX ADC 1)
AUX DATA IN 1
AUX DATA IN 2
AUX LRCLK
TDM (OUT)
AUX BCLK
ASDATA1
DSDATA1
DSDATA1
ASDATA
TDM (IN)
FSTDM
BCLK
TDM
AUX BCLK FREQUENCY IS 64 × FRAME-RATE; TDM BCLK FREQUENCY IS 256 × FRAME-RATE.
MSB TDM
MSB TDM
1ST
1ST
CH
CH
ADC L1
DAC L1
LRCLK
LRCLK
LRCLK
LRCLK
DATA
DATA
DATA
DATA
BCLK
BCLK
BCLK
BCLK
32
32
Figure 18. AUX 256 Mode Timing (Note that the Clocks Are Not to Scale)
DAC R1
ADC R1
32 BCLKs
32 BCLKs
32 BCLKs
32 BCLKs
SLOT 1
SLOT 1
SLOT 1
SLOT 1
LEFT 1
LEFT 1
LEFT 1
LEFT 1
I
I
2
2
S - MSB LEFT
S - MSB LEFT
Figure 16. ADC TDM (8-channel I
Figure 17. DAC TDM (8-channel I
SLOT 2
SLOT 2
RIGHT 1
RIGHT 1
SLOT 2
SLOT 2
RIGHT 1
RIGHT 1
LEFT
MSB
MSB
MSB
MSB
ADC L2
DAC L2
Rev. PrI | Page 14 of 30
SLOT 3
SLOT 3
LEFT 2
LEFT 2
SLOT 3 SLOT 4
SLOT 3 SLOT 4
LEFT 2
LEFT 2
MSB–1
MSB–1
MSB–1
MSB–1
SLOT 4
SLOT 4
RIGHT 2
RIGHT 2
RIGHT 2
RIGHT 2
ADC R2
DAC R2
256 BCLKs
256 BCLKs
256 BCLKs
256 BCLKs
MSB–2
MSB–2
MSB–2
MSB–2
SLOT 5
SLOT 5
SLOT 5
SLOT 5
LEFT 3
LEFT 3
AUX ADC L1
2
2
LRCLK
LRCLK
BCLK
BCLK
DATA
DATA
LRCLK
LRCLK
BCLK
BCLK
DATA
DATA
Smode )
S mode)
DAC L3
SLOT 6
SLOT 6
SLOT 6
SLOT 6
RIGHT 3
RIGHT 3
AUX ADC R1
SLOT 7 SLOT 8
SLOT 7 SLOT 8
SLOT 7 SLOT 8
SLOT 7 SLOT 8
LEFT 4
LEFT 4
DAC R3
Preliminary Technical Data
RIGHT 4
RIGHT 4
AUX ADC L2
DAC L4
RIGHT
I
I
2
2
S - MSB RIGHT
S - MSB RIGHT
AUX ADC R2
MSB TDM
MSB TDM
DAC R4
8TH
8TH
CH
CH