CS4297A
CS4297A
1. CHARACTERISTICS AND SPECIFICATIONS
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=100 kΩ/
1000 pF load, 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.
CS4297A-KQZ
CS4297A-JQZ
Parameter
(Note 2)
Symbol Path Min Typ Max Min Typ Max
(Note 3)
Unit
Full Scale Input Voltage
Line Inputs
Mic Inputs
A-D
A-D
0.91 1.00
0.91 1.00
-
-
-
0.91 1.00
0.91 1.00
0.091 0.10
-
-
-
VRMS
VRMS
VRMS
Mic Inputs
(20 dB internal gain)
A-D 0.091 0.10
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
Analog
DAC
ADC
Dynamic Range
(Note 4)
FR
DR
Ac = 0.25 dB
Ac = 0.25 dB
Ac = 0.25 dB
A-A
D-A
A-D
20
20
20
-
-
-
20,000 20
20,000 20
20,000 20
-
-
-
20,000
20,000
20,000
Hz
Hz
Hz
Stereo Analog inputs to LINE_OUT
Mono Analog inputs to LINE_OUT
DAC Dynamic Range
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
ADC Dynamic Range
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/Alternate Line Output
DAC
THD+N
A-A
D-A
A-D
A-D
-
-
-
-
-90
-91
-88
-84
-80
-80
-80
-74
-
-
-
-
-
-
-
-
-74
-74
-74
-74
dB FS
dB FS
dB FS
dB FS
ADC
ADC
(all inputs except phone/mic)
(phone/mic)
Power Supply Rejection Ratio
(1 kHz, 0.5 VRMS w/ 5 V DC offset)(Note 4)
40
60
-
-
40
-
dB
Interchannel Isolation
70
-
88
-100
-
-
-
-
88
-100
-
-
dB
dB FS
kΩ
kΩ
Ω
Spurious Tone
(Note 4)
(Note 4)
-
-
Input Impedance
External Load Impedance
Output Impedance
Input Capacitance
Vrefout
10
10
-
-
-
10
10
-
-
-
-
-
(Note 4)
(Note 4)
730
5
-
730
5
-
-
-
-
-
pF
V
2.0 2.28
2.5
2.0 2.28
2.5
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 Section 10, Parameter and Term Definitions.
3. Path refers to the signal path used to generate this data. These paths are defined in the Section 10,
Parameter and Term Definitions.
4. This specification is guaranteed by silicon characterization, it is not production tested.
DS318PP6
5
5
CIRRUS [ CIRRUS LOGIC ]
