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LA4636 Folha de dados(PDF) 2 Page - Sanyo Semicon Device

Nome de Peças LA4636
Descrição Electrónicos  For General Audio Use 11 W 2-Channel BTL AF Power Amplifier
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Fabricante Electrônico  SANYO [Sanyo Semicon Device]
Página de início  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA4636 Folha de dados(HTML) 2 Page - Sanyo Semicon Device

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LA4636
No. 6985-2/3
Operating Characteristics at Ta = 25
°C, VCC = 12 V, RL = 4 Ω, f = 1 kHz, Rg = 600 Ω
Parameter
Symbol
Conditions
Ratings
min
typ
max
Unit
Quiescent current
ICCO
Rg = 0
40
70
150
mA
Standby current
Ist
010
µA
Voltage gain
VG
VO = 0 dBm
33
35
37
dB
Total harmonic distortion
THD
PO = 1 W
0.06
0.2
%
Output power
PO1
THD = 10%
8
11
W
PO2
THD = 10%, RL = 6
9W
Output noise voltage
VNO
Rg = 0, BPF = 20 Hz to 20 kHz
0.14
0.3
mV
Ripple rejection
SVRR
Rg = 0, fR = 100 Hz, VR= 0 dBm
50
60
dB
Channel separation
CH Sep
Rg = 10 k
Ω, VO = 0 dBm
50
60
dB
Input resistance
Ri
14
20
26
k
Output offset voltage
VN offset
Rg = 0
–300
+300
mV
Standby pin voltage
VST
Amplifier on (pin 5 voltage)
2.5
10
V
Mute pin voltage
VM
Mute on (pin 6 voltage)
1.5
3
V
Mute attenuation
ATTM
VO = 1Vrms, BPF = 20 Hz to 20 kHz
80
90
dB
Measurement Circuit Diagram
Signal Mute Function
• Connecting a CR of the recommended value (10
µF,
22 k
Ω) 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 k
Ω 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.
Note: The LA4636 is basically
pin-compatible with the
LA4635, but there are
partial differences in
operation and usage,
including with regard to
externally connected
parts.
+
DC
+
IN1
+
IN2
+
MUTE
PWR
GND
+OUT2
--OUT2
--OUT1
STBY
VCC
VCC
PRE
GND
+
+OUT1
LA4636
1
2
3
4
5
6
7
10
11
12
RL
RL
8
9
ILA00774
Top view
Pin 6 Equivalent Circuit Inside IC
22k
5V
2k
6
Imute
ILA00775
Approximately 1.56V


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