AD1938YSTZ Analog Devices Inc, AD1938YSTZ Datasheet - Page 20

• Manufacturer Part Number: AD1938YSTZ
• Description: IC CODEC 24BIT 4ADC/8DAC 48LQFP
• Manufacturer: Analog Devices Inc
• Type: General Purposer

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

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