CS4272-DZZ Cirrus Logic Inc, CS4272-DZZ Datasheet - Page 32

• Manufacturer Part Number: CS4272-DZZ
• Description: IC CODEC 24BIT 114DB 28-TSSOP
• Manufacturer: Cirrus Logic Inc
• Type: Stereo Audior

Specifications of CS4272-DZZ

• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 114 / 114
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.1 V ~ 5.25 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-TSSOP
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 3
• No. Of Output Channels: 3
• Adc / Dac Resolution: 24bit
• Adcs / Dacs Signal To Noise Ratio: 114dB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1004 - EVAL BOARD CS4272 STEREO CODEC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

5.4
5.4.1
The analog modulator samples the input at 6.144 MHz (MCLK=12.288 MHz). The digital filter will reject signals with-
in the stopband of the filter. However, there is no rejection for input signals which are (n
passband frequency, where n=0,1,2,... Refer to Figure 12 for a recommended analog input buffer that will attenuate
any noise energy at 6.144 MHz, in addition to providing the optimum source impedance for the modulators. The use
of capacitors which have a large voltage coefficient (such as general purpose ceramics) must be avoided since
these can degrade signal linearity. Figure 13 shows the full-scale analog input levels.
32
AIN+
AIN-
Analog Connections
Input Connections
10 µF
10 µF
10 kΩ
10 kΩ
0.01 µF
3.9 V
2.5 V
1.1 V
3.9 V
2.5 V
Figure 12. CS4272 Recommended Analog Input Buffer
1.1 V
Full-Scale Input Level= (AIN+) - (AIN-)= 5.6 Vpp
Figure 13. Full-Scale Analog Input
+
-
-
+
470 pF
470 pF
C0G
C0G
634 Ω
634 Ω
91 Ω
91 Ω
1 µF
2700 pF
C0G
0.1 µF
AIN+
AIN-
CS4272
×
AIN+
AIN-
VCOM
6.144 MHz) the digital
CS4272
CS4272
DS593F1