CS4207-CNZ Datasheet, PDF (15/148 Pages) Cirrus Logic – Low-power, 4-in / 6-out HD Audio Codec with Headphone Amp

CS4207
ANALOG INPUT CHARACTERISTICS (AUTOMOTIVE - DNZ)
(Test Conditions (unless otherwise specified): Input sine wave (relative to digital full-scale): 1 kHz through passive
input filter; VA_HP = VA; VL_HD = VL_IF = 3.3; VD = 1.8 V; T_A = -40 to +85C; Measurement Bandwidth is 10 Hz
to 20 kHz unless otherwise specified. Sample Frequency = 48 kHz)
VA, VA_REF = 5.0 V
(Differential/Single-ended)
VA, VA_REF = 3.3 V
(Differential/Single-ended)
Parameter (Note 4)
Min
Typ
Max
Min
Typ
Max
Line In to PGA to ADC (ADC1 or ADC2; differential perf. characteristics only valid for ADC2)
Dynamic Range
PGA Setting: 0 dB
A-weighted 99/96 105/102
-
95/93 101/99
-
unweighted 96/93 102/99
-
92/90 98/96
-
PGA Setting: +12 dB
A-weighted 95/86 101/92
-
92/83 98/89
-
unweighted 92/83 98/89
-
89/80 95/86
-
Total Harmonic Distortion + Noise
PGA Setting: 0 dB
-1 dBFS -
-88/-88 -82/-82
-
-95/-92 -89/-86
-60 dBFS -
-42/-39 -36/-33
-
-38/-36 -32/-30
PGA Setting: +12 dB
-1 dBFS -
-88/-88 -82/-82
-
-92/-86 -86/-80
Mic In to PGA to ADC (+20 dB) (ADC1 or ADC2; differential perf. characteristics only valid for ADC2)
Dynamic Range
A-weighted 86/78 92/84
-
83/75 89/81
-
unweighted 83/75 89/81
-
80/72 86/78
-
Total Harmonic Distortion + Noise
-1 dBFS -
-89/-82 -83/-76
-
-86/-78 -80/-72
Other Analog Characteristics
DC Accuracy
Interchannel Gain Mismatch
-
0.2
-
-
0.2
-
Gain Drift
-
±100
-
-
±100
-
Offset Error
High Pass Filter On
-
352
-
-
352
-
Interchannel Isolation
-
90
-
-
90
-
HP Amp to Analog Input Isolation
R_L = 10 k
-
100
-
R_L = 16 
-
70
-
-
100
-
-
70
-
Full-scale Input Voltage - Line In/Mic In
(Differential Inputs)
PGA(0dB) 1.58•VA 1.66•VA 1.74•VA 1.58•VA 1.66•VA 1.74•VA
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
ppm/°C
LSB
dB
dB
dB
Vpp
Full-scale Input Voltage - Line In PGA(0dB)
(Single-ended Inputs)
PGA(+12dB)
0.79•VA
0.83•VA
0.21•VA
0.87•VA
0.79•VA
0.83•VA
0.21•VA
0.87•VA
Vpp
Vpp
Full-scale Input Voltage - Mic In
PGA+Boost(0dB) 0.79•VA 0.83•VA 0.87•VA 0.79•VA 0.83•VA 0.87•VA Vpp
(Single-ended Inputs)
PGA+Boost(+20dB)
0.08•VA
0.08•VA
Vpp
Input Impedance (Note 5)
-
-
Mic In (Differential or Pseudo-Diff)
43.5
Line In (Pseudo-Diff, PGA = -12/0/+12 dB)
93/99/103
Mic/Line In (Single-Ended, PGA = -12/0/+12 dB)
27/33/37
-
-
43.5
k
93/99/103
k
27/33/37
k
Common Mode Rejection (Differential Inputs) -
60
-
-
60
-
dB
4. Referred to the typical full-scale voltage. Applies to all THD+N and Dynamic Range values in the table.
5. Measured between [LINE/MIC]IN_[L/R]+ and [LINE/MIC]IN_[C/L/R]- for differential and pseudo-differ-
ential inputs, and between [LINE/MIC]IN_[L/R]+ and AGND for single-ended inputs.
DS880F4
15