AD1839AAS Analog Devices Inc, AD1839AAS Datasheet - Page 18

• Manufacturer Part Number: AD1839AAS
• Description: IC CODEC 2ADC/6DAC 24BIT 52-MQFP
• Manufacturer: Analog Devices Inc
• Type: Stereo Audior

Specifications of AD1839AAS

• Rohs Status: RoHS non-compliant
• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 6
• Sigma Delta: Yes
• S/n Ratio, Adcs / Dacs (db) Typ: 105 / 108
• Dynamic Range, Adcs / Dacs (db) Typ: 105 / 108
• Voltage - Supply, Analog: 4.5 V ~ 5.5 V
• Voltage - Supply, Digital: 4.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-BQFP
• For Use With: EVAL-AD1839AEB - BOARD EVALUATION FOR AD1839A

AD1839A
(FROM AUX ADC NO. 1)
(FROM AUX ADC NO. 1)
(FROM AUX ADC NO. 1)
(FROM AUX ADC NO. 2)
(FROM AUX ADC NO. 3)
AAUXDATA1 (IN)
AAUXDATA2 (IN)
AAUXDATA3 (IN)
ADC NO. 1
ADC NO. 2
ADC NO. 3
SLAVE
SLAVE
SLAVE
TDM (OUT)
LRCLK I
ASDATA1
DSDATA1
DSDATA1
BCLK I
TDM (IN)
ASDATA
FSTDM
BCLK
TDM
AUX
AUX
LRCLK
LRCLK
LRCLK
2
2
MCLK
MCLK
MCLK
BCLK
BCLK
BCLK
DATA
DATA
DATA
S
S
AUXBCLK FREQUENCY IS 64 × FRAME RATE; TDM BCLK FREQUENCY IS 256 × FRAME RATE.
MSB TDM
MSB TDM
1ST
1ST
INTERNAL
INTERNAL
CH
CH
ADC L1
DAC L1
12.288MHz
30MHz
32
32
Figure 26. Auxiliary Mode Connection (Master Mode) to SHARC
INTERNAL
AUX_ADC
DAC L2
I
I
I
2
2
2
L2
S - MSB LEFT
S - MSB LEFT
S - MSB LEFT
DBCLK/AUXBCLK
DLRCLK/AUXLRCLK
DSDATA2/AAUXDATA1
DSDATA3/AAUXDATA2
AAUXDATA3
MCLK
Figure 25. Auxiliary Mode Timing
LEFT
ASDATA
INTERNAL
AUX_ADC
DAC L3
Rev. B | Page 18 of 24
L3
SHARC
FSTDM
INTERNAL
AUX_ADC
DAC L4
L4
BCLK
AD1839A
MASTER
INTERNAL
INTERNAL
ADC R1
DAC R1
DSDATA1
DAUXDATA
SHARC IS ALWAYS
RUNNING IN SLAVE MODE
(INTERRUPT DRIVEN).
INTERNAL
AUX_ADC
DAC R2
R2
INTERNAL
AUX_ADC
DAC R3
LRCLK
BCLK
DATA
MCLK
R3
RIGHT
I
I
I
2
2
2
S - MSB RIGHT
S - MSB RIGHT
S - MSB RIGHT
DAC NO. 1
SLAVE
INTERNAL
AUX_ADC
MSB TDM
MSB TDM
DAC R4
8TH
8TH
R4
CH
CH