CS5376A-IQZ Cirrus Logic Inc, CS5376A-IQZ Datasheet - Page 49

• Manufacturer Part Number: CS5376A-IQZ
• Description: IC,Digital Filter,QFP,64PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5376A-IQZ

• Filter Type: Digital
• Number Of Filters: 4
• Max-order: 2nd
• Voltage - Supply: 3 V ~ 5 V
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Package: 64TQFP
• Operating Temperature: -40 to 85 °C
• Resolution (bits): 24bit
• Conversion Rate: 4kSPS
• Operating Temperature Range: -40°C To +85°C
• No. Of Pins: 64
• Msl: MSL 3 - 168 Hours
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1778 - EVALUATION BOARD FOR CS5376
• Frequency - Cutoff Or Center: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS612F4
FIR1 – Single stage, fixed decimate by 4
FIR2 – Single stage, fixed decimate by 2
Combined SINC + FIR digital filter specifications
SINC + FIR filters
FIR2
Output
Word
Rate
4000
2000
1000
500
333
250
200
125
100
50
40
25
20
10
5
1
Coefficient set 0: linear phase decimate by 4, 48 coefficients
Coefficient set 1: minimum phase decimate by 4, 48 coefficients
Coefficient set 0: linear phase decimate by 2, 126 coefficients
Coefficient set 1: minimum phase decimate by 2, 126 coefficients
Passband ripple less than +/- 0.01 dB below 40% f
Transition band -3 dB frequency at 42.89% f
Stopband attenuation greater than 130 dB above 50% f
SINC
Deci-
mation
SINC droop compensation filter
Brick wall low-pass filter, flat to 40% f
12800
64000
1280
1600
2560
3200
6400
128
192
256
320
512
640
16
32
64
FIR1
Deci-
mation
Table 12. FIR Filter Characteristics
Figure 26. FIR Filter Stages
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
FIR2
Deci-
mation
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Total
Deci-
mation
102400
512000
10240
12800
20480
25600
51200
1024
1536
2048
2560
4096
5120
128
256
512
s
Passband
Ripple
( ± dB)
s
0.0042
0.0045
0.0040
0.0041
0.0080
0.0064
0.0041
0.0046
0.0040
0.0040
0.0036
0.0040
0.0036
0.0036
0.0036
0.0029
s
s
Stopband
Atten-
uation
(dB)
130.38
130.38
130.42
130.42
130.45
130.43
130.43
130.42
130.43
130.43
130.43
132.98
130.43
130.43
130.43
134.31
CS5376A
49