AD1938YSTZ Analog Devices Inc, AD1938YSTZ Datasheet - Page 16

• 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
Table 12. Pin Function Changes in TDM-AUX Modes
Mnemonic
ASDATA1
ASDATA2
DSDATA1
DSDATA2
DSDATA3
DSDATA4
ALRCLK
ABCLK
DLRCLK
DBCLK
(AUX1_OUT)
(AUX2_OUT)
(AUX PORT)
(AUX PORT)
DSDATA1
ASDATA2
DSDATA4
(TDM_IN)
ALRCLK
DLRCLK
ABCLK
DBCLK
Stereo Modes
ADC1 Data Out
ADC2 Data Out
DAC1 Data In
DAC2 Data In
DAC3 Data In
DAC4 Data In
ADC LRCLK In/ADC LRCLK Out
ADC BCLK In/ADC BCLK Out
DAC LRCLK In/DAC LRCLK Out
DAC BCLK In/DAC BCLK Out
EMPTY
UNUSED SLOTS
EMPTY
MSB
EMPTY
MSB
MSB
32 BITS
EMPTY
LEFT
TDM Modes
ADC TDM Data Out
ADC TDM Data In
DAC TDM Data In
DAC TDM Data Out
DAC TDM Data In 2 (Dual-Line Mode)
DAC TDM Data Out 2 (Dual-Line Mode)
ADC TDM Frame Sync In/DC TDM Frame Sync Out
ADC TDM BCLK In/ADC TDM BCLK Out
DAC TDM Frame Sync In/DAC TDM Frame Sync Out
DAC TDM BCLK In/DAC TDM BCLK Out
DAC L1 DAC R1 DAC L2 DAC R2 DAC L3 DAC R3 DAC L4 DAC R4
Figure 14. 16-Channel AUX DAC Mode
8 ON-CHIP DAC CHANNELS
Rev. C | Page 16 of 32
MSB
MSB
RIGHT
AUX L1
AUXILIARY DAC CHANNELS
AUX Modes
TDM Data Out
AUX Data Out 1 (to Ext. DAC 1)
TDM Data In
AUX Data In 1 (from Ext. ADC 1)
AUX Data In 2 (from Ext. ADC 2)
AUX Data Out 2 (to Ext. DAC 2)
TDM Frame Sync In/TDM Frame Sync Out
TDM BCLK In/TDM BCLK Out
AUX LRCLK In/AUX LRCLK Out
AUX BCLK In/AUX BCLK Out
AUX DAC PORTS
AUX R1
APPEAR AT
AUX L2
AUX R2