Pwm output characteristics – Cirrus Logic CS42L52 User Manual
Page 17
DS680F2
17
CS42L52
3/1/13
PWM OUTPUT CHARACTERISTICS
Test conditions (unless otherwise specified): Input test signal is a full scale 997 Hz signal; MCLK = 12.2880 MHz; Measurement
Bandwidth is 20 Hz to 20 kHz; Sample Frequency = 48 kHz; Test load R
L
= 8
for stereo full-bridge, R
L
= 4
for mono parallel
full-bridge; VD = VL = VA = VHP = 1.8 V; PWM Modulation Index of 0.85; PWM Switch Rate = 384 kHz;
Parameters
Symbol Conditions
Min
Typ
Max Units
VP = 5.0 V
Power Output per Channel
P
O
Stereo Full-Bridge
THD+N < 10%
THD+N < 1%
-
-
1.00
0.80
-
-
W
rms
W
rms
Mono Parallel Full-Bridge
THD+N < 10%
THD+N < 1%
-
-
1.90
1.50
-
-
W
rms
W
rms
Total Harmonic Distortion + Noise
THD+N
Stereo Full-Bridge
P
O
= 0 dBFS = 0.8W
-
0.52
-
%
Mono Parallel Full-Bridge
P
O
= -3 dBFS = 0.75 W
P
O
= 0 dBFS = 1.5 W
-
-
0.10
0.50
-
-
%
%
Dynamic Range
DR
Stereo Full-Bridge
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
-
-
91
88
-
-
dB
dB
Mono Parallel Full-Bridge
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
-
-
91
88
-
-
dB
dB
VP = 3.7 V
Power Output per Channel
P
O
Stereo Full-Bridge
THD+N < 10%
THD+N < 1%
-
-
0.55
0.45
-
-
W
rms
W
rms
Mono Parallel Full-Bridge
THD+N < 10%
THD+N < 1%
-
-
1.00
0.84
-
-
W
rms
W
rms
Total Harmonic Distortion + Noise
THD+N
Stereo Full-Bridge
P
O
= 0 dBFS = 0.43 W
-
0.54
-
%
Mono Parallel Full-Bridge
P
O
= -3 dBFS = 0.41 W
P
O
= 0 dBFS = 0.81 W
-
-
0.09
0.45
-
-
%
%
Dynamic Range
DR
Stereo Full-Bridge
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
-
-
91
88
-
-
dB
dB
Mono Parallel Full-Bridge
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
-
-
95
92
-
-
dB
dB
VP =2.5 V
Power Output per Channel
P
O
Stereo Full-Bridge
THD+N < 10%
THD+N < 1%
-
-
0.23
0.19
-
-
W
rms
W
rms
Mono Parallel Full-Bridge
THD+N < 10%
THD+N < 1%
-
-
0.44
0.35
-
-
W
rms
W
rms
Total Harmonic Distortion + Noise
THD+N
Stereo Full-Bridge
P
O
= 0 dBFS = 0.18 W
-
0.50
-
%
Mono Parallel Full-Bridge
P
O
= -3 dBFS = 0.17 W
P
O
= 0 dBFS = 0.35 W
-
-
0.08
0.43
-
-
%
%
Dynamic Range
DR
Stereo Full-Bridge
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
-
-
91
88
-
-
dB
dB
Mono Parallel Full-Bridge
P
O
= -60 dBFS, A-Weighted
P
O
= -60 dBFS, Unweighted
-
-
94
91
-
-
dB
dB
MOSFET On Resistance
R
DS(ON)
VP = 5.0V, I
d
= 0.5 A
-
600
-
m