AD1938YSTZ Analog Devices Inc, AD1938YSTZ Datasheet - Page 20
![IC CODEC 24BIT 4ADC/8DAC 48LQFP](/photos/6/59/65923/505-48-lqfp_sml.jpg)
AD1938YSTZ
Manufacturer Part Number
AD1938YSTZ
Description
IC CODEC 24BIT 4ADC/8DAC 48LQFP
Manufacturer
Analog Devices Inc
Type
General Purposer
Datasheet
1.AD1938YSTZRL.pdf
(32 pages)
Specifications of AD1938YSTZ
Data Interface
Serial
Resolution (bits)
24 b
Number Of Adcs / Dacs
4 / 8
Sigma Delta
Yes
S/n Ratio, Adcs / Dacs (db) Typ
94 / 94
Dynamic Range, Adcs / Dacs (db) Typ
105 / 106
Voltage - Supply, Analog
3 V ~ 3.6 V
Voltage - Supply, Digital
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
48-LQFP
Audio Codec Type
Audio
No. Of Adcs
4
No. Of Dacs
8
No. Of Input Channels
4
No. Of Output Channels
8
Adc / Dac Resolution
24bit
Adcs / Dacs Signal To Noise Ratio
108dB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Part Number:
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AD1938
OF THE SECOND AD193x
OF THE SECOND AD193x
Figure 19. Dual-Line DAC TDM Mode (Applicable to 96 kHz Sample Rate, 16-Channel, Two-AD1938 Daisy Chain); DSDATA3 and DSDATA4 Are the Daisy Chain
ASDATA1 (TDM_OUT
ASDATA2 (TDM_IN
DSDATA1
DSDATA2
DSDATA3
DSDATA4
DSDATA1
DSDATA2
DLRCLK
DLRCLK
DBCLK
DBCLK
IN THE CHAIN)
IN THE CHAIN)
(OUT)
(OUT)
(IN)
(IN)
AD193x
FIRST
ALRCLK
ABCLK
AD193x
FIRST
DAC L1
DAC L3
8 DAC CHANNELS OF THE FIRST IC IN THE CHAIN
SECOND
AD193x
MSB
MSB
ADC L1
ADC L1
DAC L1
DAC L3
SECOND
AD193x
Figure 20. Dual-Line DAC TDM Mode (Applicable to 192 kHz Sample Rate, 8-Channel Mode)
4 ADC CHANNELS OF SECOND IC IN THE CHAIN
DAC R1
DAC R3
32 BITS
32 BITS
Figure 21. ADC TDM Daisy-Chain Mode (256 f
DSP
ADC R1
ADC R1
DSP
DAC L2
DAC L4
ADC L2
ADC L2
DAC R1
DAC R3
DAC R2
DAC R4
Rev. C | Page 20 of 32
ADC R2
ADC R2
DAC L1
DAC L1
DAC L3
DAC L3
8 DAC CHANNELS OF THE SECOND IC IN THE CHAIN
S
BCLK, Two-AD193x Daisy Chain)
ADC L1
DAC L2
DAC L4
MSB
4 ADC CHANNELS OF FIRST IC IN THE CHAIN
32 BITS
DAC R1
DAC R1
DAC R3
DAC R3
ADC R1
DAC L2
DAC L2
DAC L4
DAC L4
ADC L2
DAC R2
DAC R4
DAC R2
DAC R2
DAC R4
DAC R4
ADC R2