CS4228A
1. CHARACTERISTICS AND SPECIFICATIONS
ANALOG CHARACTERISTICS (Unless otherwise specified TA = 25° C; VA = VD = VL = +5 V; Full
Scale Input Sine wave, 984.375 Hz; Fs = 48 kHz BRM, 96 kHz HRM; Measurement Bandwidth is 20 Hz to 20 kHz;
Local components as shown in Figure 5; SPI control mode, Left Justified serial format, MCLK = 256 x Fs for BRM,
128 x Fs for HRM, SCLK = 64 x Fs)
Base Rate Mode
Symbol Min Typ Max Min
Analog Input Characteristics - Minimum gain setting (0 dB) Differential Input; unless otherwise specified.
High Rate Mode
Parameter
Typ Max
Units
90
97
94
-
-
90
97
94
-
-
dB
dB
Dynamic Range, -60 dBFS input (A weighted)
(unweighted)
THD+N
(Note 1)
-
-
-
-
-95
100
0.1
-
-88
-
-
-
-
-95
100
0.1
-
-88
dB
dB
Total Harmonic Distortion + Noise
Interchannel Isolation
-
-
-
-
dB
Interchannel Gain Mismatch
Offset Error (with high pass filter)
Full Scale Input Voltage (Differential):
Gain Drift
0
0
LSB
Vp-p
ppm/°C
kΩ
5.24 5.66 6.09 5.24 5.66 6.09
-
10
-
100
-
-
-
10
-
100
-
-
-
-
-
-
Input Resistance
15
15
pF
Input Capacitance
A/D Decimation Filter Characteristics (Note 2)
0.022
-
21.77 0.022
0.01
6114 72.41
-
43.54
kHz
dB
kHz
dB
s
Passband
(Note 3)
-
30.0
80
-
-
-
-
0.05
Passband Ripple
Stopband
-
-
6071
(Note 3)
(Note 4)
-
TBD
-
-
-
45
-
-
TBD
-
-
-
Stopband Attenuation
Group Delay
tgd
∆ tgd
-
0
-
0
µs
Group Delay Variation vs. Frequency
High Pass Filter Characteristics (Note 2)
-
-
3.4
20
-
-
-
-
3.4
20
-
-
Hz
Hz
Frequency Response:
-3 dB (Note 5)
-0.13 dB
-
10
-
-
10
-
Degree
Phase Deviation
@ 20 Hz
(Note 5)
-
-
0
-
-
0
dB
Passband Ripple
Notes: 1. Referenced to typical full-scale differential input voltage (2 Vrms), Tested with -1 dBFS input.
2. Filter response is not tested but is guaranteed by design.
3. Filter characteristics scale with output sample rate.
4. The analog modulator samples the input at 128 times Fs. For example, input the sample rate is
6.144 MHz for an output sample rate of 48 kHz. There is no rejection of input signals which are multiples
of the sampling frequency (n × 6.144 MHz ±20.0 kHz where n = 0,1,2,3...).
5. High Pass Filter characteristics are specified for Fs=44.1 KHz.
Specifications are subject to change without notice
4
DS511PP1
CIRRUS [ CIRRUS LOGIC ]
