Akai LCT3785TAJ, Service Manual

Page: 71 / 128

Digital Power Amplifier
R2S15102NP
７．
Recommended Operating condition(Table.3)
kHz 600 400 300 R= 33
ｋΩ
Carrier Frequency
fosc
MAX TYP
0.8
5
25
-
-
-
V
V
V
Unit
0
2
11
MIN
STBYL
、
MUTEL
STB
Control voltage of high level
YL
、
MUTEL
VD1,VD2 pin voltage
Condition
Control voltage of low level
Supply Voltage
Parameter
VL
VH
VD
Symbol
(note)
・
STBYL: High level:normal operation Low level:Stand-by
・
MUTEL:High level:normal operation Low level:Mute
・
The carrier frequency can be changed by the resistance at Pin#.7 .
８．
Electronic Characteristics(Table.4)
％
- 89 TBD Po=20W at BTL
at SE
dB - 80 TBD Mute Attenuation Mute
dB - 50 TBD dVD=100mVrms,f=100
Hz
Ripple Rejection
Ratio
PSRR
W - 20 TBD THD=10%
、
VD=18V
、
RL=8
Ω
at BTL
at SE
％
- 93 TBD Po=10+10W
Power
Efficiency
Eff
uVrm D
s
TB (100) - A-Weighted filter
Output Noise level
No
％
W/ch - 10 TBD THD=10%
、
VD=24V
、
RL=8
Ω
Maximum
output
power
Pomax
TBD 0.1 - Po=1W Total Harmonic
Distortion
THD
A - 6 - Output over-current Protection Current IPR
℃
- 120 - Thermal Shut-dawn Release Temperature TRL
℃
- 150 - Thermal Shut-dawn Protection
Temperature
TPR
uA 10 - - Stand-by
mA TBD - TBD MUTE
MA
X
TYP MIN
TBD
TBD
9.8
28
V
mA
Unit
TBD
TBD
VD under-voltage
No Signal
Condition
Detection Voltage
Circuit Current
Parameter
VDPR
IVD
Symbol
(Unless otherwise noted, Ta=25°C, VD=24V, Carrier Frequency=400kHz, f=1kHz,SE operation)
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