CS42888-CQZ Cirrus Logic Inc, CS42888-CQZ Datasheet - Page 51

• Manufacturer Part Number: CS42888-CQZ
• Description: IC,Soundcard Circuits,CMOS,QFP,64PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc
• Type: Audio Codecr

Specifications of CS42888-CQZ

• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 4 / 8
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 105 / 108 (Differential), 102 / 105 (Single-Ended)
• Voltage - Supply, Analog: 3.14 V ~ 5.25 V
• Voltage - Supply, Digital: 3.14 V ~ 5.25 V
• Operating Temperature: -10°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• No. Of Adcs: 2
• No. Of Dacs: 4
• No. Of Input Channels: 8
• No. Of Output Channels: 4
• Adc / Dac Resolution: 24bit
• Ic Interface Type: Serial
• Supply Voltage Range: 3.14V To 5.25V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 598-1183

DS717F2
7. EXTERNAL FILTERS
7.1
100 kΩ
ADC Input Filter
The analog modulator samples the input at 6.144 MHz (internal MCLK=12.288 MHz). The digital filter will
reject signals within the stopband of the filter. However, there is no rejection for input signals which are mul-
tiples of the digital passband frequency (n
a recommended analog input filter that will attenuate any noise energy at 6.144 MHz, in addition to providing
the optimum source impedance for the modulators. Refer to
count passive input filters. The use of capacitors that have a large voltage coefficient (such as general-pur-
pose ceramics) must be avoided since these can degrade signal linearity
100 kΩ
100 kΩ
4.7 μF
VA
100 kΩ
0.1 μF
10 kΩ
Figure 25. Single-to-Differential Active Input Filter
Figure 26. Single-Ended Active Input Filter
4.7 μF
-
+
470 pF
100 kΩ
100 μF
100 kΩ
C0G
VA
332 Ω
634 Ω
634 Ω
91 Ω
+
-
×
470 pF
C0G
6.144 MHz), where n=0,1,2,... Refer to
-
+
634 Ω
470 pF
91 Ω
C0G
4.7 μF
634 Ω
2700 pF
Figures 27
C0G
91 Ω
AIN1+,2+,3+,4+
AIN1-,2-,3-,4-
and
2700 pF
C0G
ADC1-2
28
for low-cost, low-component-
AINx+
AINx-
Figures 25
ADC1-2
CS42888
and
26
for
51