Cirrus Logic CS5374 - Manual (Page 7)

CS5374
CS5374
7
PERFORMANCE SPECIFICATIONS
Notes: 12. Dynamic Range defined as 20 log [(RMS full scale) / (RMS idle noise)] where idle noise is measured
with the amplifier input terminated. Dynamic Range is dominated by high-frequency quantization noise
at the 1/4 ms rate and amplifier noise at high gain.
13. Tested with a 31.25 Hz sine wave at 1 ms sampling rate and -1 dB amplitude.
Parameter Symbol Min Typ Max Unit
Amplifier Noise
Voltage Noise
f
0
= 0.1 Hz to 10 Hz VN
PP
- 1.5 3 μV
pp
Voltage Noise Density f
0
= 200 Hz to 2 kHz VN
D
- 11 14
Current Noise Density IN
D
- 20 -
Channel Dynamic Range
Dynamic Range
(1/4 ms) DC to 1720 Hz
(1x Gain, Multiple OWRs) (1/2 ms) DC to 860 Hz
( Note 9, 12 ) (1 ms) DC to 430 Hz
(2 ms) DC to 215 Hz
(4 ms) DC to 108 Hz
(8 ms) DC to
54 Hz
(16 ms) DC to 27 Hz
SNR -
-
121
-
-
-
-
105
120
123
126
129
131
135 -
-
-
-
-
-
- dB
dB
dB
dB
dB
dB
dB
Dynamic Range 1x
(Multiple Gains, 1 ms OWR) 2x
( Note 9, 12 ) 3x
8x
16x
32x
64x
SNR 121
-
-
-
-
-
-
123
122
120
116
111
105
98
-
-
-
-
-
-
- dB
dB
dB
dB
dB
dB
dB
Channel Distortion
Total Harmonic Distortion
1x
( Note 13 ) 2x
4x
8x
16x
32x
64x
THD
-
-
-
-
-
-
- -118
-119
-119
-119
-118
-115
-112 -108
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
nV/ Hz
fA/ Hz
0
5
10
15
20
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Frequency (Hz)
CS5374 Amplifier In-Band Noise
Noi
se Dens
it
y (nV
/r
tHz
)
0
100
200
300
400
0.1 1 10 100 1k
Frequency (Hz)
CS5374 Amplifier Wide Band Noise
Noi
se Dens
it
y (nV
/r
tHz
)
10k 100k 1M
Figure 2. CS5374 Amplifier Noise Performance