CS42526-CQZ Cirrus Logic Inc, CS42526-CQZ Datasheet - Page 74

• Manufacturer Part Number: CS42526-CQZ
• Description: IC CODEC S/PDIF RCVR 64LQFP
• Manufacturer: Cirrus Logic Inc
• Type: General Purposer

Specifications of CS42526-CQZ

• Package / Case: 64-LQFP
• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 2 / 6
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 114 / 114
• Voltage - Supply, Analog: 4.75 V ~ 5.25 V
• Voltage - Supply, Digital: 3.13 V ~ 5.25 V
• Operating Temperature: -10°C ~ 70°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 6
• Conversion Rate: 192 KSPS
• Interface Type: Serial (SPI)
• Resolution: 24 bit
• Operating Supply Voltage: 3.3 V, 5 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 10 C
• Number Of Channels: 2 ADC/6 DAC
• Thd Plus Noise: - 100 dB ADC / - 100 dB DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 598-1037

74
8. APPENDIX A: EXTERNAL FILTERS
8.1
8.2
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
(n
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 that have a large voltage coefficient (such as
general-purpose ceramics) must be avoided since these can degrade signal linearity.
DAC Output Filter
The CS42526 is a linear phase design and does not include phase or amplitude compensation for an exter-
nal filter. Therefore, the DAC system phase and amplitude response will be dependent on the external an-
alog circuitry.
×
6.144 MHz) the digital passband frequency, where n=0,1,2,... Refer to
AINL
AINR
AOUT +
AOUT -
100 k
100 k
Ω
Ω
3.32 k
3.32 k
2.8 k
2.8 k
Figure 25. Recommended Analog Output Buffer
Ω
Ω
100
Ω
100
Ω
V A
Figure 24. Recommended Analog Input Buffer
V A
µ
µ
F
F
5.49 k
1.65 k
5800 pF
1800 pF
C0G
C0G
0.1
0.1
10 k
10 k
µ
µ
F
F
Ω
Ω
Ω
Ω
-
+
-
+
470 pF
100
470 pF
100
C0G
C0G
µ
2.94 k
1.87 k
µ
F
887
F
332
332
634
634
634
Ω
634
Ω
Ω
91
91
Ω
Ω
Ω
Ω
Ω
Ω
Ω
Ω
6.19 k
22
-
+
-
+
+
470 pF
-
470 pF
C0G
C0G
µ
Ω
F
1200 pF
390 pF
C0G
C0G
634
634
91
91
Ω
Ω
Ω
Ω
22
2700 pF
2700 pF
µ
C0G
C0G
F
47.5 k
1 k
Ω
A INR1+
A INL1+
A INL1-
A INR1-
Ω
Figure 24
for a recommended
Analog
Out
CS42526
DS585F1