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CS4294/CS4298 数据表(PDF) 7 Page - Cirrus Logic

部件名 CS4294/CS4298
功能描述  CrystalClear짰 Audio Codec ??7 for Portable Computing
PDF  81 Pages
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

CS4294/CS4298 数据表(HTML) 7 Page - Cirrus Logic

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CS4205
DS489PP4
7
1. CHARACTERISTICS AND SPECIFICATIONS
ANALOG CHARACTERISTICS (Standard test conditions unless otherwise noted: T
ambient = 25° C,
AVdd = 5.0 V ±5%, DVdd = 3.3 V ±5%; 1 kHz Input Sine wave; Sample Frequency, Fs = 48 kHz; ZAL=100 kΩ/
1000 pF load for Mono and Line Outputs; CDL = 18 pF load (Note 1); Measurement bandwidth is 20 Hz - 20 kHz,
18-bit linear coding for ADC functions, 20-bit linear coding for DAC functions; Mixer registers set for unity gain.
Notes: 1. ZAL refers to the analog output pin loading and CDL refers to the digital output pin loading.
2. Parameter definitions are given in Section 15, Parameter and Term Definitions.
3. Path refers to the signal path used to generate this data. These paths are defined in Section 15,
Parameter and Term Definitions.
4. This specification is guaranteed by silicon characterization; it is not production tested.
Parameter
(Note 2)
Symbol
Path
(Note 3)
CS4205-KQZ
Unit
Min
Typ
Max
Full Scale Input Voltage
Line Inputs
Mic Inputs
(10dB = 0, 20dB = 0)
Mic Inputs
(10dB = 1, 20dB = 0)
Mic Inputs
(10dB = 0, 20dB = 1)
Mic Inputs
(10dB = 1, 20dB = 1)
A-D
A-D
A-D
A-D
A-D
0.91
0.91
0.283
0.091
0.0283
1.00
1.00
0.315
0.10
0.0315
-
-
-
-
-
VRMS
VRMS
VRMS
VRMS
VRMS
Full Scale Output Voltage
Line and Mono Outputs
D-A
0.91
1.0
1.13
VRMS
Frequency Response
(Note 4)
Analog
Ac = ± 0.25 dB
DAC
Ac = ± 0.25 dB
ADC
Ac = ± 0.25 dB
FR
A-A
D-A
A-D
20
20
20
-
-
-
20,000
20,000
20,000
Hz
Hz
Hz
Dynamic Range
Stereo Analog Inputs to LINE_OUT
Mono Analog Input to LINE_OUT
DAC Dynamic Range
ADC Dynamic Range
DR
A-A
A-A
D-A
A-D
90
85
85
85
95
90
90
90
-
-
-
-
dB FS A
dB FS A
dB FS A
dB FS A
DAC SNR
(-20 dB FS input w/ CCIR-RMS filter on output)
SNR
D-A
-
70
-
dB
Total Harmonic Distortion + Noise
(-3 dB FS input signal):
Line Output
DAC
ADC
(all inputs)
THD+N
A-A
D-A
A-D
-
-
-
-90
-87
-84
-80
-80
-80
dB FS
dB FS
dB FS
Power Supply Rejection Ratio
(1 kHz, 0.5 VRMS w/ 5 V DC offset)
(Note 4)
40
60
-
dB
Interchannel Isolation
70
87
-
dB
Spurious Tone
(Note 4)
-
-100
-
dB FS
Input Impedance
(Note 4)
10
-
-
k
Ω



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