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CS4297 数据表(PDF) 4 Page - Cirrus Logic

部件名 CS4297
功能描述  CrystalClear SoundFusion Audio Codec 97
PDF  46 Pages
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

CS4297 数据表(HTML) 4 Page - Cirrus Logic

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4
DS242F5
CS4297
CrystalClear™ SoundFusion™ Audio Codec ’97
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=10 kΩ/680
pF load CDL = 18 pF load (Note 1); Measurement bandwidth is 20 Hz - 20 kHz, 18-bit linear coding; 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 the
Parameter and Term Definitions section.
3. Path refers to the signal path used to generate this data. These paths are defined in the
Parameter and
Term Definitions section.
4. This specification is guaranteed by silicon characterization, it is not production tested.
Parameter
(Note 2)
Symbol
Path
(Note 3)
CS4297-KQ
CS4297-JQ
Unit
Min
Typ
Max
Min
Typ
Max
Full Scale Input Voltage
Line Inputs
Mic Inputs
(20 dB=0)
Mic Inputs
(20 dB=1)
A-D
A-D
A-D
0.91
0.91
0.091
1.00
1.00
0.10
-
-
-
0.91
0.91
0.091
1.00
1.00
0.10
-
-
-
VRMS
VRMS
VRMS
Full Scale Output Voltage
Line,Alternate Line, and Mono Outputs
D-A
0.91
1.0
1.13
0.91
1.0
1.13
VRMS
Frequency Response
(Note 4)
Analog
Ac = ± 0.5 dB
DAC
Ac = ± 0.5 dB
ADC
Ac = ± 0.5 dB
FR
A-A
D-A
A-D
20
20
20
-
-
-
20,000
20,000
20,000
20
20
20
-
-
-
20,000
20,000
20,000
Hz
Hz
Hz
Dynamic Range
Stereo Analog inputs to LINE_OUT
Mono Analog inputs 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
-
-
-
-
-
-
-
-
90
85
87
85
-
-
-
-
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
-
63
-
-
-
-
dB
Total Harmonic Distortion + Noise
(-3 dB FS input signal):
Line/Alternate Line Output
DAC
ADC
(all inputs except phone/mic)
ADC
(phone/mic)
THD+N
A-A
D-A
A-D
A-D
-
-
-
-
-94
-86
-87
-87
-80
-80
-80
-74
-
-
-
-
-
-
-
-
-74
-74
-74
-74
dB FS A
dB FS A
dB FS A
dB FS A
Power Supply Rejection Ratio
(1 kHz, 0.5 VRMS w/ 5 V DC offset)(Note 4)
40
60
-
-
40
-
dB
Interchannel Isolation
70
87
-
-
87
-
dB
Spurious Tone
(Note 4)
-
-100
-
-
-100
-
dB FS
Input Impedance
(Note 4)
10
-
-
10
-
-
k
Ω
External Load Impedance
10
-
-
10
-
-
k
Ω
Output Impedance
(Note 4)
-
730
-
-
730
-
Ω
Input Capacitance
(Note 4)
-
5
-
-
5
-
pF
Vrefout
2.0
2.3
2.5
2.0
2.3
2.5
V



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