Akai LCT3785TAJ Service Manual page 71

Digital Power Amplifier
７．Recommended Operating condition(Table.3)
Symbol
VD Supply Voltage
VH
Control voltage of high level
VL Control voltage of low level
fosc Carrier Frequency
・ STBYL: High level:normal operation
(note)
・ MUTEL:High level:normal operation
・ The carrier frequency can be changed by the resistance at Pin#.7 .
８．Electronic Characteristics(Table.4)
(Unless otherwise noted, Ta=25°C, VD=24V, Carrier Frequency=400kHz, f=1kHz,SE operation)
Symbol
IVD Circuit Current
VDPR Detection Voltage
TPR Protection
Temperature
TRL Release Temperature
IPR Protection Current
Pomax
Maximum
output
power
THD Total Harmonic
Distortion
No
Output Noise level
Eff
Power
Efficiency
Mute Mute Attenuation
PSRR
Ripple Rejection
Ratio
R2S15102NP
Parameter
VD1,VD2 pin voltage
STB
STBYL、MUTEL
R= 33ｋΩ
Parameter
No Signal
MUTE
Stand-by
VD under-voltage
Thermal Shut-dawn
Thermal Shut-dawn
Output over-current
at SE THD=10%、VD=24V、
RL=8Ω
at BTL THD=10%、VD=18V、
RL=8Ω
Po=1W
A-Weighted filter
at SE Po=10+10W
at BTL Po=20W
dVD=100mVrms,f=100
Hz
Condition MIN
YL、MUTEL
300
Low level:Stand-by
Low level:Mute
Condition
69／126
TYP MAX Unit
11 - 25 V
2 - 5 V
0 - 0.8 V
400 600 kHz
MIN TYP MA Unit
X
TBD 28 TBD mA
TBD - TBD mA
- - 10 uA
TBD 9.8 TBD
- 150 -
℃
- 120 -
℃
- 6 -
TBD 10 - W/ch
TBD 20 - W
- 0.1 TBD
％
- (100) TB D uVrm
TBD 93 -
％
TBD 89 -
％
TBD 80 - dB
TBD 50 - dB
V
A
s