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CS4221 データシート(PDF) 4 Page - Cirrus Logic

部品番号 CS4221
部品情報  24-Bit Stereo Audio Codec with 3V Interface
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メーカー  CIRRUS [Cirrus Logic]
ホームページ  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS4221 データシート(HTML) 4 Page - Cirrus Logic

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CS4220 CS4221
4
DS284PP3
1. CHARACTERISTICS AND SPECIFICATIONS
ANALOG CHARACTERISTICS (T
A = 25° C; VA, VD = +5 V; Full Scale Input Sine wave, 997 Hz;
Fs = 48 kHz; Measurement Bandwidth is 20 Hz to 20 kHz; Local components as shown in Figures 4 and 5; SPI®
mode, Format 0, unless otherwise specified.)
Notes: 1. Referenced to typical full-scale differential input voltage (2 Vrms).
2. Filter characteristics scale with output sample rate. For output sample rates, Fs, other than 48 kHz, the
0.01 dB passband edge is 0.4535x Fs and the stopband edge is 0.625x Fs.
3. The analog modulator samples the input at 6.144 MHz for an Fs equal to 48 kHz. There is no rejection
of input signals which are multiples of the sampling frequency (n x 6.144 MHz ±21.8 kHz where
n = 0,1,2,3...).
4. Group delay for Fs = 48 kHz, tgd = 15/48 kHz = 312 µs.
Parameter
Symbol
CS4220/1 - KS
Unit
Min
Typ
Max
Analog Input Characteristics
ADC Resolution
-
-
24
Bits
Total Harmonic Distortion
THD
-
0.003
-
%
Dynamic Range
A-weighted
unweighted
95
92
100
97
-
-
dB
Total Harmonic Distortion + Noise
(Note 1) THD+N
-
-92
-87
dB
Interchannel Isolation
(1 kHz)
-
90
-
dB
Interchannel Gain Mismatch
-
-
0.1
dB
Offset Error
with High Pass Filter
-
-
0
LSB
Full Scale Input Voltage (Differential)
1.9
2.0
2.1
Vrms
Gain Drift
-
100
-
ppm/°C
Input Resistance
10
-
-
k
Input Capacitance
-
-
15
pF
Common Mode Input Voltage
-
2.3
-
V
A/D Decimation Filter Characteristics
Passband
(Note 2)
0
-
21.8
kHz
Passband Ripple
-
-
±0.01
dB
Stopband
(Note 2)
30
-
6114
kHz
Stopband Attenuation
(Note 3)
80
-
-
dB
Group Delay (Fs = Output Sample Rate)
(Note 4)
tgd
-15/Fs
-
s
Group Delay Variation vs. Frequency
∆t
gd
--
0
µs
High Pass Filter Characteristics
Frequency Response
-3 dB (Note 2)
-0.1 dB
-
-
3.7
20
-
-
Hz
Phase Deviation
@ 20 Hz
(Note 2)
-
10
-
Degree
Passband Ripple
-
-
0
dB


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