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CS4298 数据表(PDF) 5 Page - Cirrus Logic

部件名 CS4298
功能描述  SoundFusion Audio/Modem Codec 97 (AMC 97)
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制造商  CIRRUS [Cirrus Logic]
网页  http://www.cirrus.com
标志 CIRRUS - Cirrus Logic

CS4298 数据表(HTML) 5 Page - Cirrus Logic

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CS4298
DS315PP2
5
1. CHARACTERISTICS AND SPECIFICATIONS
AUDIO ANALOG CHARACTERISTICS (Standard test conditions unless otherwise noted:
Tambient = 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
for ADC, 20-bit linear coding for DAC; 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 Definition section.
4. Typical measured with ZAL =47kΩ/680 pF load.
5. This specification is guaranteed by silicon characterization, it is not production tested.
Parameter (Note 2)Symbol
Path
(Note 3)
CS4298-KQ
CS4298-JQ
Unit
Min
Typ
Max
Min
Typ
Max
Full Scale Analog 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
(Note 4)
Line and Alternate Line Outputs
D-A
0.91
1.0
1.13
0.91
1.0
1.13
VRMS
Frequency Response
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 5)
40
60
-
-
40
-
dB
Interchannel Isolation
70
87
-
-
87
-
dB
Spurious Tone
(Note 5)
-
-100
-
-
-100
-
dB FS
Input Impedance
(Note 5)
10
-
-
10
-
-
k
External Load Impedance
10
-
-
10
-
-
k
Output Impedance
(Note 5)
-
730
-
-
730
-
W
Input Capacitance
(Note 5)
-
5
-
-
5
-
pF
Vrefout
2.0
2.3
2.4
2.0
2.3
2.4
V


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