參數(shù)資料
型號： CDB4228A
廠商： Cirrus Logic, Inc.
元件分類： Codec
英文描述： 24-Bit, 96 kHz Surround Sound Codec
中文描述： 24位96千赫環(huán)繞聲解碼器
文件頁數(shù)： 4/32頁
文件大小： 518K
代理商： CDB4228A
CS4228A
4
DS511PP1
1. CHARACTERISTICS AND SPECIFICATIONS
ANALOG CHARACTERISTICS
(Unless otherwise specified T
A
= 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)
Notes: 1.
Referenced to typical full-scale differential input voltage (2 Vrms), Tested with -1 dBFS input.
Filter response is not tested but is guaranteed by design.
Filter characteristics scale with output sample rate.
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...).
High Pass Filter characteristics are specified for Fs=44.1 KHz.
2.
3.
4.
5.
Specifications are subject to change without notice
Base Rate Mode
Min
Typ
High Rate Mode
Min
Typ
Parameter
Symbol
Max
Max
Units
Analog Input Characteristics
- Minimum gain setting (0 dB) Differential Input; unless otherwise specified.
Dynamic Range, -60 dBFS input
(A weighted)
(unweighted)
Total Harmonic Distortion + Noise
(Note 1) THD+N
Interchannel Isolation
Interchannel Gain Mismatch
Offset Error (with high pass filter)
Full Scale Input Voltage (Differential):
Gain Drift
Input Resistance
Input Capacitance
A/D Decimation Filter Characteristics
(Note 2)
Passband
(Note 3)
Passband Ripple
Stopband
(Note 3)
Stopband Attenuation
(Note 4)
Group Delay
t
gd
Group Delay Variation vs. Frequency
t
gd
High Pass Filter Characteristics
(Note 2)
Frequency Response: -3 dB
(Note 5)
-0.13 dB
Phase Deviation
@ 20 Hz
(Note 5)
Passband Ripple
90
97
94
-95
100
0.1
-
5.66
100
-
-
-
-
90
97
94
-95
100
0.1
-
5.66
100
-
-
-
-
dB
dB
dB
dB
dB
LSB
Vp-p
ppm/°C
k
pF
-
-
-
-
-88
-
-
0
6.09
-
-
15
-
-
-
-
-88
-
-
0
6.09
-
-
15
5.24
-
10
-
5.24
-
10
-
0.022
-
30.0
80
-
-
-
-
-
-
21.77 0.022
0.01
6114
-
-
0
-
-
-
-
43.54
0.05
6071
-
-
0
kHz
dB
kHz
dB
s
μ
s
-
72.41
45
-
-
TBD
-
TBD
-
-
-
-
3.4
20
10
-
-
-
-
-
-
3.4
20
10
-
-
-
Hz
Hz
Degree
-
-
0
-
-
0
dB
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PDF描述
CDB4228 24-Bit, 96 kHz Surround Sound Codec
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