CS4294-JQ CIRRUS [Cirrus Logic], CS4294-JQ Datasheet - Page 5

• Manufacturer Part Number: CS4294-JQ
• Description: SoundFusion Audio/Docking Codec 97 (AMC 97)
• Manufacturer: CIRRUS [Cirrus Logic]

1. CHARACTERISTICS AND SPECIFICATIONS
AUDIO ANALOG CHARACTERISTICS
T
Z
for ADC, 20-bit linear coding for DAC; Mixer registers set for unity gain.
Notes: 1. Z
DS326PP4
Full Scale Analog Input Voltage
Line Inputs
Mic Inputs
Mic Inputs
Full Scale Output Voltage
Line and Alternate Line 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
ambient
AL
=10 k 680 pF load C
= 25° C, AVdd = 5.0 V ±5%, DVdd = 3.3 V ±5%; 1 kHz Input Sine wave; Sample Frequency, Fs = 48 kHz;
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. Typical measured with Z
5. This specification is guaranteed by silicon characterization, it is not production tested.
Parameter (Note 2)
Term Definition section.
RMS
(all inputs except phone/mic)
AL
refers to the analog output pin loading and C
w/ 5 V DC offset)(Note 5)
DL
Ac = ± 0.5 dB
Ac = ± 0.5 dB
Ac = ± 0.5 dB
= 18 pF load (Note 1); Measurement bandwidth is 20 Hz - 20 kHz, 18-bit linear coding
(phone/mic)
(20 dB=0)
(20 dB=1)
(Note 4)
(Note 5)
(Note 5)
(Note 5)
(Note 5)
AL
= 47 k /680 pF load.
Symbol
THD+N
SNR
DR
FR
(Note 3)
Path
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
(Standard test conditions unless otherwise noted:
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.
CS4294-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
2.4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0.091
0.91
0.91
0.91
Min
2.0
20
20
20
10
10
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CS4294-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
Max
1.13
-74
-74
-74
-74
2.4
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
CS4294
dB FS A
dB FS A
dB FS A
dB FS A
dB FS A
dB FS A
dB FS A
dB FS A
dB FS
V
V
V
V
Unit
Hz
Hz
Hz
dB
dB
dB
k
k
RMS
RMS
RMS
RMS
pF
V
5