CS4922 查看數據表（PDF） - Cirrus Logic
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CS4922 Datasheet PDF : 33 Pages
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CS4922
1 CHARACTERISTICS AND SPECIFICATIONS
ANALOG CHARACTERISTICS (TA = 25 °C; VA+, VD+ = 5V; CLKIN = 27 MHz; Full-Scale Output
Sinewave, 1.125 kHz; Word Clock = 48 kHz (PLL in use); Logic 0 = GND, Logic 1 = VD+; Measurement Bandwidth
is 20 Hz to 20 kHz; Local components as shown in "Typical Connection Diagram"; SPI mode, I2S audio data;
unless otherwise specified.)
Parameter*
Symbol Min Typ Max Units
Dynamic Performance
DAC Resolution
DAC Differential Nonlinearity
Total Harmonic Distortion
AOUTL, AOUTR (Note 1)
AOUTM
DNL
THD
16
-
-
Bits
-
-
±0.9
LSB
-
0.01 0.015
%
0.02 0.03
Instantaneous Dynamic Range AOUTL, AOUTR (Note 1) IDR
85
90
-
dB
(DAC not muted, A weighted) AOUTM
80
85
Interchannel Isolation
(Note 1)
-
85
-
dB
Interchannel Gain Mismatch
-
-
0.2
dB
Frequency Response
-3.0
-
+0.2
dB
Full Scale output Voltage
AOUTL, AOUTR (Note 1)
AOUTM
2.66 2.88
3.2
Vpp
2.7 3.0
3.3
Gain Drift
-
100
-
ppm/°C
Deviation from Linear Phase
-
-
5
Deg
Out of Band Energy
Analog Output Load
(Fs/2 to 2Fs)
Resistance:
Capacitance:
-
-60
-
dB
8
-
-
kΩ
-
-
100
pF
Power Supply
Power Supply Rejection
(1 kHz)
-
40
-
dB
Power Supply Consumption
VA+
VD+
-
20
40
mA
-
100
140
mA
Notes: 1. 10 kΩ, 100pF load for each analog signal (Left, Right).
30 kΩ, 100pF load for analog Mono signal.
D/A INTERPOLATION FILTER CHARACTERISTICS (See Figures 20 through 23)
Parameter
Symbol Min
Typ Max Units
Passband (to -3 dB corner)
Passband Ripple.
(Fs is conversion freq.).
0
- 0.476Fs Hz
-
-
±0.1
dB
Transition Band.
Stop Band.
Stop Band Rejection.
0.442Fs
- 0.567Fs Hz
≥0.567Fs -
-
Hz
50
-
-
dB
Stop Band Rejection with Ext. 2Fs RC filter.
57
-
-
dB
Group Delay.
-
12/Fs
-
s
* Refer to Parameter Definitions on page 31 of this data sheet.
Specifications are subject to change without notice.
4
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