CS4270 Cirrus Logic, CS4270 Datasheet - Page 11

• Manufacturer Part Number: CS4270
• Description: 192 kHz Stereo Audio CODEC
• Manufacturer: Cirrus Logic

DS686A1
DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
(The filter characteristics have been normalized to the sample rate (Fs) and can be referenced to the desired sam-
ple rate by multiplying the given characteristic by Fs.) (See
Single-Speed Mode
Passband (
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
De-emphasis Error (Note 8)
Double-Speed Mode
Passband (
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
Quad-Speed Mode
Passband (
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
5. Amplitude vs. Frequency plots of this data are available in
6. Response is clock dependent and will scale with Fs.
7. For Single-Speed Mode, the Measurement Bandwidth is 0.5465 Fs to 3 Fs.
8. De-emphasis is available only in Single-Speed Mode.
Figures 19
For Double-Speed Mode, the Measurement Bandwidth is 0.577 Fs to 1.4 Fs.
For Quad-Speed Mode, the Measurement Bandwidth is 0.7 Fs to 1 Fs.
Note 6
Note 6
Note 6
)
)
)
through 42.
Parameter
to -0.05 dB corner
to -0.1 dB corner
to -0.1 dB corner
to -3 dB corner
to -3 dB corner
to -3 dB corner
Fs = 44.1 kHz
Fs = 32 kHz
Fs = 48 kHz
(Note
(Note
(Note
Note
7)
7)
7)
Symbol
5)
tgd
tgd
tgd
Section 11. “Appendix” on page
.5465
.5770
Min
-.01
-.05
0.7
50
55
51
0
0
0
0
0
0
0
-
-
-
-
-
-
2.5/Fs
10/Fs
5/Fs
Typ
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
www.DataSheet4U.com
+0.00004
+.05/-.25
+1.5/+0
-.2/-.4
.4780
.4996
.4650
.4982
0.397
0.476
Max
+.08
+.2
-
-
-
-
-
-
-
-
-
CS4270
42. See
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
Fs
Fs
Fs
Fs
Fs
Fs
Fs
Fs
Fs
s
s
s
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