AD1938YSTZ Analog Devices Inc, AD1938YSTZ Datasheet - Page 27

• 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

ADC CONTROL REGISTERS
Table 23. ADC Control Register 0
Bit
0
1
2
3
4
5
7:6
Table 24. ADC Control Register 1
Bit
1:0
4:2
6:5
7
Value
0
1
0
1
0
1
0
1
0
1
0
1
00
01
10
11
Value
00
01
10
11
000
001
010
011
100
101
110
111
00
01
10
11
0
1
Function
Normal
Power down
Off
On
Unmute
Mute
Unmute
Mute
Unmute
Mute
Unmute
Mute
32 kHz/44.1 kHz/48 kHz
64 kHz/88.2 kHz/96 kHz
128 kHz/176.4 kHz/192 kHz
Reserved
Function
24
20
Reserved
16
1
0
8
12
16
Reserved
Reserved
Reserved
Stereo
TDM (daisy chain)
ADC AUX mode (ADC-, DAC-, TDM-coupled)
Reserved
Latch in mid cycle (normal)
Latch in at end of cycle (pipeline)
Rev. C | Page 27 of 32
Description
Power-down
High-pass filter
ADC L1 mute
ADC R1 mute
ADC L2 mute
ADC R2 mute
Output sample rate
Description
Word width
SDATA delay (BCLK periods)
Serial format
BCLK active edge (TDM in)
AD1938