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LA4802 데이터시트(PDF) 2 Page - Sanyo Semicon Device

부품명 LA4802
상세설명  Headphone Stereo Power Amplifier
Download  10 Pages
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제조업체  SANYO [Sanyo Semicon Device]
홈페이지  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA4802 데이터시트(HTML) 2 Page - Sanyo Semicon Device

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LA4802T
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
2.4
V
Operating supply voltage range
VCC op
1.8 to 3.6
V
Recommended load resistance
RL
16 to 32
Operating Conditions at Ta = 25°C
Item
Symbol
Conditions
Ratings
Unit
min
typ
max
Quiescent current
ICCO1
Current when ST is off (with L.B. on and muting off)
0.05
1
µA
ICCO2
Current when muting is on (with ST on and L.B. on)
530
900
µA
ICCO3
Current when ST is on (with L.B. on and muting off)
950
1500
µA
Operating current drain
ICC1
PO = 0.1 mW (With 2 channels driven)
3.2
3.7
mA
Voltage gain
VG
VO = –10 dBm
6.8
7.8
8.8
dB
Channel balance
∆VG
VO = –10 dBm
–1
0
+1
dB
Output power
PO
THD = 10%
25
38
mW
Total harmonic distortion
THD
VO = –8 dBm, 20 kHz LPF
0.03
0.1
%
Output noise voltage
VNO
Rg = 10 k
Ω, IHF A
–100
–90
dBm
Crosstalk
CT
TUN1kHz, VO = –10 dBm
70
80
dB
Ripple rejection ratio
SVRR
fr = 100 kHz, Vr = –20 dBm, TUN100Hz
60
70
dB
Peak output voltage
VOBEEP VIN = 2.4 Vp-p, f = 1 kHz, MUTE OFF
1.0
2.7
mV
Muting attenuation
VOFF
THD = 1%, TUN1kHz
–100
–120
dB
Power on voltage sensitivity
V1 ON
Power on threshold voltage
1.6
V
Power off voltage sensitivity
V1 OFF
Power off threshold voltage
0.5
V
Mute on voltage sensitivity
V20 ON
Muting on threshold voltage
1.4
V
Mute off voltage sensitivity
V20 OFF
Muting off threshold voltage
0.5
V
Boost on voltage sensitivity
V4 ON
Boost on threshold voltage
0.5
V
Boost off voltage sensitivity
V4 OFF
Boost off threshold voltage
1.4
V
Ta = 25°C, VCC = 2.7 V, fIN = 1 kHz, RL = 47 kΩ (Characteristics when used as a line output), L.B OFF
Operating current drain
ICC2
VO = 0 dBm (With 2 channels driven)
1.5
2.0
mA
Total harmonic distortion
THD2
VO = 0 dBm, 20 kHz LPF
0.005
0.05
%
Output noise voltage
VNO2
Rg = 10 k
Ω, IHF A
–100
–90
dBm
Crosstalk
CT2
TUN1kHz, VO = –10 dBm
80
90
dB
Ripple rejection ratio
SVRR2
fr = 100 kHz, Vr = –20 dBm, TUN100Hz
65
78
dB
Electrical Characteristics at Ta = 25°C, VCC = 2.4 V, fIN = 1 kHz, RL = 16 Ω
Switch Threshold Voltages and Pin Influx Currents
• Standby switch (pin 1)
H : IC ON
L : IC OFF
0
20
40
60
80
100
120
0
1
2
3
4
5
V1 (V)
H
L
• Mute switch (pin 20), boost switch (pin 4)
0
20
40
0
30
0
1
2
3
4
5
V20, V4 (V)
H
L
H : MUTE ON, L. B OFF
L : MUTE OFF, L. B ON


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