CS8421-CNZR Cirrus Logic Inc, CS8421-CNZR Datasheet - Page 6

• Manufacturer Part Number: CS8421-CNZR
• Description: IC,Digital Audio Sample Rate Converter,CMOS,LLCC,20PIN
• Manufacturer: Cirrus Logic Inc

6
PERFORMANCE SPECIFICATIONS
Measurement Bandwidth = 20 to Fso/2 Hz, and Word Width = 32-Bits, unless otherwise stated.)
DIGITAL FILTER CHARACTERISTICS
Notes: 3. The equation for the group delay through the sample rate converter is (56.581 / Fsi) + (55.658 / Fso).
Resolution
Sample Rate with XTI = 27.000 MHz
Sample Rate with other XTI clocks
Sample Rate with ring oscillator (XTI to GND or VL, XTO floating)
Sample Rate Ratio - Upsampling
Sample Rate Ratio - Downsampling
Interchannel Gain Mismatch
Interchannel Phase Deviation
Peak Idle Channel Noise Component (32-bit operation)
Dynamic Range (20 Hz to Fso/2, 1 kHz, -60 dBFS Input)
44.1 kHz:48 kHz
44.1 kHz:192 kHz
48 kHz:44.1 kHz
48 kHz:96 kHz
96 kHz:48 kHz
192 kHz:32 kHz
Total Harmonic Distortion + Noise (20 Hz to Fso/2, 1 kHz, 0 dBFS
Input)
32 kHz:48 kHz
44.1 kHz:48 kHz
44.1 kHz:192 kHz
48 kHz:44.1 kHz
48 kHz:96 kHz
96 kHz:48 kHz
192 kHz:32 kHz
Passband (Upsampling or Downsampling)
Passband Ripple
Stopband
Stopband Attenuation
Group Delay
For example, if the input sample rate is 192 kHz and the output sample rate is 96 kHz, the group delay
through the sample rate converter is (56.581/192,000) + (55.658/96,000) =.875 milliseconds.
Parameter
Parameter
(XTI/XTO = 27 MHz; Input signal = 1.000 kHz, 0 dBFS,
Unweighted
Unweighted
Unweighted
Unweighted
Unweighted
Unweighted
A-Weighted
A-Weighted
A-Weighted
A-Weighted
A-Weighted
A-Weighted
Master
Master
Slave
Slave
0.5465*Fso
XTI/3750
XTI/512
Min
125
Min
7.2
16
53
12
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
(Note 3)
-161
-171
-130
-160
-148
-168
-173
Typ
180
177
175
172
180
177
179
176
176
173
175
172
Typ
0.0
0.0
-
-
-
-
-
-
-
-
-
-
-
-
-
0.4535*Fso
XTI/130
XTI/128
7.5:1
-192
Max
±0.007
207
211
1:8
32
96
Max
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CS8421
DS641PP1
Degrees
Units
dBFS
kHz
kHz
kHz
kHz
kHz
bits
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Units
ms
Hz
dB
Hz
dB