cs47028-dqz Cirrus Logic, Inc., cs47028-dqz Datasheet - Page 28

• Manufacturer Part Number: cs47028-dqz
• Description: System-on- A-chip Asoc Processors
• Manufacturer: Cirrus Logic, Inc.

CS470xx Data Sheet
Audio SOC Processor Family
5.16.2 Analog Input Characteristics (Automotive)
Test Conditions (unless otherwise specified): T
sine wave driven through the passive input filter (R
running test application; Measurement Bandwidth is 10 Hz to 20 kHz.
Notes:
28
Fs=96 kHz
Dynamic Range
Total Harmonic Distortion + Noise
AIN_1A/B Interchannel Isolation
AIN_[2.6]A/B MUX Interchannel Isolation
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Analog Input
Full-Scale Input Voltage
Differential Input Impedance
Single-Ended Input Impedance
Common Mode Rejection Ratio (CMRR)
Parasitic Load Capacitance (C
1. dB units referred to the typical full-scale voltage.
2. These full-scale values were measured with R
3. The full-scale voltage can be changed be scaling R
4. Measured between AIN_xx+ and AN_xx-.
5. Measured between AIN_xx+ and AGND.
6. Decreasing Full-Scale voltage by reducing R
7. Common mode input current should be kept to less than +/- 160uA to avoid performance degradation: |(I
8. This number was measured using perfectly matched external resistors (R
9. C
10. This measurement is not applicable to the CS47028 and CS47024 devices.
Differential Full-Scale (Vpp) = 3.7*VDDA*(R
Single-Ended Full-Scale (Vpp) = 1.85*VDDA*(R
160uA. This corresponds to +/- 1.6V for R
typically reduce CMRR by 20 log (|
package.
L
represents the parasitic load capacitance between R
40 kHz bandwidth
40 kHz bandwidth unweighted
Parameter
1,6,7
2,3
4
L
5
)
unweighted
A-weighted
10
9
6,7
-20 dB
-60 dB

-1 dB
-1 dB
R
i
8
|/R
i
i
Copyright 2011 Cirrus Logic
=1 0k in the differential case.
+ 0.001).
i
+200)/(10k+200)
i
A
Min
will cause the noise floor to increase.
i
=10k for both the single-ended and differential mode input circuits.
3.3
97
94
= -40 to +85C; VDD = 1.8V±5%, VDDA (VA)= 3.3V±5%; 1 kHz
-
-
-
-
-
-
-
-
-
-
-
-
-
i
+200)/(10k+200)
i
=10 k) in
i
.
Differential
3.7•VA
i
±120
on the input circuit and the input pin of the CS47048
Typ
105
102
400
-98
-82
-42
-90
0.1
99
95
95
60
-
-
Figure 14 on page 29
Max
-90
3.9
20
-
-
-
-
-
-
-
-
-
-
-
-
-
i
). Mismatch in the external resistors will
Min
1.65
94
91
-
-
-
-
-
-
-
-
-
-
-
-
Single-Ended
or
1.85•VA
Figure 15 on page
±120
Typ
102
200
-95
-79
-39
-90
0.1
99
96
95
95
-
-
-
1.95
Max
-87
20
-
-
-
-
-
-
-
-
-
-
-
-
-
ip
+I
in
DS787PP5
)/2| <
29; DSP
ppm/°C
Unit
V
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF


PP