Cs4340, Analog characteristics (cs4340-dsz) – Cirrus Logic CS4340 User Manual
Page 8
CS4340
8
DS297F3
ANALOG CHARACTERISTICS (CS4340-DSZ)
(Continued)
COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
(The
filter characteristics and the X-axis of the response plots have been normalized to the sample rate (Fs) and can be
referenced to the desired sample rate by multiplying the given characteristic by Fs.)
Notes: 4. For Single-Speed Mode, the measurement bandwidth is 0.5465 Fs to 3 Fs.
For Double-Speed Mode, the measurement bandwidth is 0.577 Fs to 1.4 Fs.
5. De-emphasis is only available in Single-Speed Mode.
Parameters
Symbol
Min
Typ
Max
Units
Dynamic Performance for All Modes
Interchannel Isolation (1 kHz)
-
102
-
dB
DC Accuracy
Interchannel Gain Mismatch
-
0.1
-
dB
Gain Drift
-
±100
-
ppm/°C
Analog Output Characteristics and Specifications
Full Scale Output Voltage
0.6•VA
0.7•VA
0.8•VA
Vpp
Output Impedance
-
100
-
Ω
Minimum AC-Load Resistance
R
L
-
3
-
k
Ω
Maximum Load Capacitance
C
L
-
100
-
pF
Parameter
Min
Typ
Max
Unit
Single-Speed Mode - (4 kHz to 50 kHz sample rates)
Passband
to -0.05 dB corner
to -3 dB corner
0
0
-
-
0.4535
0.4998
Fs
Fs
Frequency Response 10 Hz to 20 kHz
-0.02
-
+0.08
dB
StopBand
0.5465
-
-
Fs
StopBand Attenuation
(Note 4)
50
-
-
dB
Group Delay
-
9/Fs
-
s
Passband Group Delay Deviation
0 - 20 kHz
-
±0.36/Fs
-
s
De-emphasis Error (Relative to 1 kHz)
Fs = 44.1 kHz
(Note 5)
-
-
+0.05/-0.14
dB
Double-Speed Mode - (50 kHz to 100 kHz sample rates)
Passband
to -0.1 dB corner
to -3 dB corner
0
0
-
-
0.4621
0.4982
Fs
Fs
Frequency Response 10 Hz to 20 kHz
-0.06
-
+0.2
dB
StopBand
0.577
-
-
Fs
StopBand Attenuation
(Note 4)
55
-
-
dB
Group Delay
-
4/Fs
-
s
Passband Group Delay Deviation
0 - 40 kHz
0 - 20 kHz
-
-
±1.39/Fs
±0.23/Fs
-
-
s
s