LA4636 데이터 시트보기 (PDF) - SANYO -> Panasonic
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LA4636 Datasheet PDF : 3 Pages
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LA4636
Operating Characteristics at Ta = 25°C, VCC = 12 V, RL = 4 Ω, f = 1 kHz, Rg = 600 Ω
Parameter
Quiescent current
Standby current
Voltage gain
Total harmonic distortion
Output power
Output noise voltage
Ripple rejection
Channel separation
Input resistance
Output offset voltage
Standby pin voltage
Mute pin voltage
Mute attenuation
Symbol
ICCO
Ist
VG
THD
PO1
PO2
VNO
SVRR
CH Sep
Ri
VN offset
VST
VM
ATTM
Rg = 0
Conditions
VO = 0 dBm
PO = 1 W
THD = 10%
THD = 10%, RL = 6 Ω
Rg = 0, BPF = 20 Hz to 20 kHz
Rg = 0, fR = 100 Hz, VR= 0 dBm
Rg = 10 kΩ, VO = 0 dBm
Rg = 0
Amplifier on (pin 5 voltage)
Mute on (pin 6 voltage)
VO = 1Vrms, BPF = 20 Hz to 20 kHz
min
40
33
8
50
50
14
–300
2.5
1.5
80
Ratings
typ
70
0
35
0.06
11
9
0.14
60
60
20
90
max
150
10
37
0.2
0.3
26
+300
10
3
Unit
mA
µA
dB
%
W
W
mV
dB
dB
kΩ
mV
V
V
dB
Measurement Circuit Diagram
LA4636
PRE
PWR
DC
IN1
GND
IN2 STBY MUTE VCC +OUT2 --OUT2 GND --OUT1 +OUT1
1
2
3
4
5
6
7
8
9
10
11
12
RL
RL
+
+
+
+
+
Note: The LA4636 is basically
Top view
pin-compatible with the
LA4635, but there are
partial differences in
operation and usage,
including with regard to
externally connected
parts.
VCC
ILA00774
Pin 6 Equivalent Circuit Inside IC
Approximately 1.56V
22kΩ Imute
2kΩ
5V
6
ILA00775
Signal Mute Function
• Connecting a CR of the recommended value (10 µF,
22 kΩ) to pin 6 of the IC and applying +5 V turns
signal mute on. This function mutes low-frequency
popping noises.
• The CR is for smoothing during attack and recovery.
The 10 µF capacitor also performs smoothing after the
starting time, so it is necessary even if the signal mute
function is not used.
If a 22 kΩ external resistor is used, the pin 6 inflow
current (Imute) will be approximately 160 µA when
+5 V is applied.
It is possible to change the external resistance value if
the voltage applied is changed or to match the capacity
of the microprocessor, but the popping noise level
could rise if the pin 6 inflow current increases too
much. It is therefore important to check the inflow
current whenever the resistance value is changed.
No. 6985-2/3
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