cs4297 Cirrus Logic, Inc., cs4297 Datasheet - Page 4

• Manufacturer Part Number: cs4297
• Description: Crystalclear Soundfusion Audio Codec 97 Logic
• Manufacturer: Cirrus Logic, Inc.

ANALOG CHARACTERISTICS
AVdd = 5.0 V ±5%, DVdd = 3.3 V ±5%; 1 kHz Input Sine wave; Sample Frequency, Fs = 48 kHz; Z
pF load C
set for unity gain.
Notes: 1. Z
Full Scale Input Voltage
Line Inputs
Mic Inputs
Mic Inputs
Full Scale Output Voltage
Line,Alternate Line, and Mono Outputs
Frequency Response
Analog
DAC
ADC
Dynamic Range
Stereo Analog inputs to LINE_OUT
Mono Analog inputs to LINE_OUT
DAC Dynamic Range
ADC Dynamic Range
DAC SNR (-20 dB FS input w/
CCIR-RMS filter on output)
Total Harmonic Distortion + Noise
(-3 dB FS input signal):
Line/Alternate Line Output
DAC
ADC
ADC
Power Supply Rejection Ratio
(1 kHz, 0.5 V
Interchannel Isolation
Spurious Tone
Input Impedance
External Load Impedance
Output Impedance
Input Capacitance
Vrefout
4
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
4. This specification is guaranteed by silicon characterization, it is not production tested.
DL
Term Definitions section.
= 18 pF load (Note 1); Measurement bandwidth is 20 Hz - 20 kHz, 18-bit linear coding; Mixer registers
RMS
(all inputs except phone/mic)
AL
Parameter
refers to the analog output pin loading and C
(Note 2)
w/ 5 V DC offset)(Note 4)
(20 dB=0)
(20 dB=1)
Ac = ± 0.5 dB
Ac = ± 0.5 dB
Ac = ± 0.5 dB
(phone/mic)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
(Note 4)
Symbol Path
THD+N
SNR
DR
FR
(Standard test conditions unless otherwise noted: T
(Note 3)
A-D
A-D
A-D
D-A
D-A
A-D
D-A
A-D
D-A
D-A
A-D
A-D
A-A
A-A
A-A
A-A
CrystalClear™ SoundFusion™ Audio Codec ’97
0.091
0.91
0.91
0.91
DL
Min
2.0
20
20
20
90
85
85
85
40
70
10
10
-
-
-
-
-
-
-
-
refers to the digital output pin loading.
CS4297-KQ
-100
1.00
1.00
0.10
Typ
730
-94
-86
-87
-87
1.0
2.3
95
90
90
90
63
60
87
5
-
-
-
-
-
20,000
20,000
20,000
Max
1.13
-80
-80
-80
-74
2.5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.091
0.91
0.91
0.91
Min
2.0
20
20
20
10
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CS4297-JQ
1.00
1.00
0.10
-100
Typ
730
1.0
2.3
90
85
87
85
40
87
5
-
-
-
-
-
-
-
-
-
-
20,000
20,000
20,000
ambient
Max
1.13
AL
-74
-74
-74
-74
2.5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
=10 k 680
= 25° C,
CS4297
dB FS A
dB FS A
dB FS A
dB FS A
dB FS A
dB FS A
dB FS A
dB FS A
DS242F5
dB FS
V
V
V
V
Unit
Hz
Hz
Hz
dB
dB
dB
k
k
RMS
RMS
RMS
RMS
pF
V