ADAU1328BSTZ Analog Devices Inc, ADAU1328BSTZ Datasheet - Page 30

• Manufacturer Part Number: ADAU1328BSTZ
• Description: IC CODEC 24BIT 2ADC/8DAC 48LQFP
• Manufacturer: Analog Devices Inc
• Type: General Purposer

Specifications of ADAU1328BSTZ

• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 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 ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 8
• No. Of Input Channels: 2
• 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

ADAU1328
APPLICATION CIRCUITS
Typical applications circuits are shown in Figure 29 through
Figure 32. Figure 29 shows a typical ADC input filter circuit.
Recommended loop filters for LR clock and master clock as the
PLL reference are shown in Figure 30. Output filters for the
DAC outputs are shown in Figure 31 and Figure 32 for the
noninverting and inverting cases, respectively.
AUDIO
INPUT
600Z
100pF
Figure 29. Typical ADC Input Filter Circuit
5.76kΩ
2
3
6
5
–
OP275
+
–
OP275
+
5.76kΩ
5.76kΩ
5.76kΩ
120pF
120pF
1
7
4.7µF
4.7µF
+
+
237Ω
237Ω
NPO
NPO
1nF
1nF
100pF
ADCxN
ADCxP
Rev. 0 | Page 30 of 32
DAC OUT
DAC
OUT
Figure 31. Typical DAC Output Filter Circuit (Single-Ended, Noninverting)
Figure 30. Recommended Loop Filters for LRCLK or MCLK PLL Reference
Figure 32. Typical DAC Output Filter Circuit (Single-Ended, Inverting)
270pF
11kΩ
11kΩ
NPO
AVDD2
4.75kΩ
LF
3.01kΩ
270pF
4.75kΩ
CM
NPO
0.1µF
+
68pF
NPO
LRCLK
3.32kΩ
39nF
2
3
3
2
4.99kΩ
–
OP275
+
+
OP275
–
2.2nF
240pF
NPO
4.99kΩ
AVDD2
1
1
LF
604Ω
604Ω
2.2nF
MCLK
4.7µF
562Ω
+
NPO
5.6nF
3.3nF
4.7µF
NPO
+
390nF
49.9kΩ
49.9kΩ
AUDIO
OUTPUT
AUDIO
OUTPUT