AD1939YSTZ Analog Devices Inc, AD1939YSTZ Datasheet - Page 21

• Manufacturer Part Number: AD1939YSTZ
• Description: IC CODEC 24BIT ADC/DAC 64LQFP
• Manufacturer: Analog Devices Inc
• Type: General Purposer

Specifications of AD1939YSTZ

• 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 / 110
• 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: 64-LQFP
• Audio Codec Type: Stereo
• 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: 112dB
• Single Supply Voltage (typ): 3.3/5V
• Single Supply Voltage (min): 3/4.5V
• Single Supply Voltage (max): 3.6/5.5V
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

OF THE SECOND AD1939
OF THE SECOND AD1939
ASDATA1 (TDM_OUT
SDATA
SDATA
SDATA
SDATA
LRCLK
LRCLK
LRCLK
LRCLK
BCLK
BCLK
BCLK
BCLK
ASDATA2 (TDM_IN
IN THE CHAIN)
IN THE CHAIN)
NOTES
1. DSP MODE DOES NOT IDENTIFY CHANNEL.
2. LRCLK NORMALLY OPERATES AT
3. BCLK FREQUENCY IS NORMALLY 64 × LRCLK BUT MAY BE OPERATED IN BURST MODE.
ALRCLK
ABCLK
MSB
AD1939
FIRST
MSB
ADC L1 ADC R1 ADC L2 ADC R2 ADC L1 ADC R1 ADC L2 ADC R2
ADC L1 ADC R1 ADC L2 ADC R2
MSB
SECOND IC IN THE CHAIN
4 ADC CHANNELS OF
SECOND
AD1939
MSB
Figure 22. ADC TDM Daisy-Chain Mode (512 f
LEFT CHANNEL
LEFT CHANNEL
LEFT CHANNEL
f
DSP
S
RIGHT-JUSTIFIED MODE—SELECT NUMBER OF BITS PER CHANNEL
EXCEPT FOR DSP MODE, WHICH IS 2 ×
LEFT-JUSTIFIED MODE—16 BITS TO 24 BITS PER CHANNEL
I
2
S-JUSTIFIED MODE—16 BITS TO 24 BITS PER CHANNEL
LSB
DSP MODE—16 BITS TO 24 BITS PER CHANNEL
FIRST IC IN THE CHAIN
4 ADC CHANNELS OF
LSB
LSB
Figure 23. Stereo Serial Modes
Rev. C | Page 21 of 32
LSB
1/
f
S
MSB
S
f
ABCLK, Two-AD1939 Daisy Chain)
S
.
MSB
MSB
MSB
32 BITS
MSB
RIGHT CHANNEL
RIGHT CHANNEL
RIGHT CHANNEL
LSB
LSB
LSB
LSB
AD1939