LR6311 Datasheet, PDF (5/13 Pages) Leshan Radio Company – 3 Watt Mono Filter-Free Class-D Audio Power Amplifier

Leshan Radio Co ., Ltd
Symb ^Parameter
ol
THD+N
Total Harmonic
Distortion + Noise
Conditions
THD+N=10%, f=1KHz, R_L = 4Ω
THD+N=1%, f=1KHz, R_L = 4Ω
THD+N=10%, f=1KHz, R_L = 8Ω
THD+N=1%, f=1KHz, R_L = 8Ω
Po=0.2Wrms, f=1kHz, R_L = 8Ω
Test Circuit
Ci
Ri
Signal input
from
measurement
2uF
V_in
Ci
150K
Ri
2uF ^150K
Shutdown
signal
IN+
VO+
LR6311
IN-
VO-
SDB
VDD GND
C_S
1uF
Power ⁺
Supply _-
Min.
Spec
Typ.
0.7
0.55
0.4
0.3
0.19
Units
Max.
%
RL ^30KHz
LPF
Output
V_O to
measurement
Figure 5. LR6311 test set up circuit
VO+
100
47nF
V_O
VO-
100
47nF
30kHz LPF
Figure 6. 30-kHz LPF for LR6311 test
Notes: 1>. C_S should be placed as close as possible to VDD/GND pad of the
device
2>. Ci should be shorted for any Common-Mode input voltage measurement
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