CS4812 Cirrus Logic, CS4812 Datasheet - Page 4

• Manufacturer Part Number: CS4812
• Description: Fixed Function Multi-Effects Audio Processor
• Manufacturer: Cirrus Logic

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1. CHARACTERISTICS AND SPECIFICATIONS
ADC CHARACTERISTICS
Notes: 1. Referenced to typical full-scale differential input voltage (2 V
4
Analog Input Characteristics
ADC Conversion
Dynamic Range
Total Harmonic Distortion + Noise
(PLL enabled)
Interchannel Isolation
Interchannel Gain Mismatch
Offset Error (with high pass filter enabled)
Full Scale Input Voltage (Differential)
Gain Drift
Input Resistance
Input Capacitance
CMOUT Output Voltage
Common Mode Rejection Ratio
Group Delay (Fs = Output Sample Rate)
Group Delay Variation vs. Frequency
High Pass Filter Characteristics
Frequency Response
Phase Deviation
Passband Ripple
997 Hz; Fs = 48 kHz; XTI = 12.288 MHz (PLL disabled). Measurement Bandwidth is 20 Hz to 20 kHz.)
2. Bench tested only.
3. Filter characteristics scale with output sample rate.
4. Group delay for Fs = 48 kHz, t
5. Measured using differential analog input circuit, see Figure 10.
6. Filter Response is not tested but guaranteed by design.
Parameters
(T
Stereo Audio channels
(unweighted, Note 5)
A
(A weighted, Note 5)
gd
= 25°C; VA, VD = + 5V; -1 dB Full Scale Input Sine wave,
@ 20 Hz (Note 3)
-0.14dB (Note 3)
= 15/48 kHz = 313 µs.
-3dB (Note 3)
(Note 1,2,5)
(Note 1,5)
(Note 6)
(Note 2)
(Note 2)
(Note 4)
Symbol
THD+N
CMRR
∆t
t
gd
gd
rms
).
Min
1.9
16
93
90
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
15/Fs
Typ
100
100
-92
-92
0.1
2.0
2.3
3.7
97
90
60
20
10
-
-
-
-
-
-
Max
-87
2.1
24
15
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
CS4812
DS291PP3
ppm/°C
Degree
Units
V
LSB
Bits
dB
dB
dB
dB
dB
kΩ
dB
Hz
Hz
dB
pF
µs
rms
V
s