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參數(shù)資料
| 型號： | LA4802 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Headphone Stereo Power Amplifier |
| 中文描述： | 耳機立體聲功率放大器 |
| 文件頁數(shù)： | 2/10頁 |
| 文件大小： | 87K |
| 代理商： | LA4802 |
No. 6657-2/10
LA4802T
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
V
CC
V
CC
op
R
L
2.4
V
Operating supply voltage range
1.8 to 3.6
V
Recommended load resistance
16 to 32
Operating Conditions
at Ta = 25°C
Item
Symbol
Conditions
Ratings
Unit
min
typ
max
Quiescent current
I
CCO
1
I
CCO
2
I
CCO
3
I
CC
1
VG
VG
P
O
THD
Current when ST is off (with L.B. on and muting off)
0.05
1
μA
Current when muting is on (with ST on and L.B. on)
530
900
μA
Current when ST is on (with L.B. on and muting off)
950
1500
μA
Operating current drain
P
O
= 0.1 mW (With 2 channels driven)
V
O
= –10 dBm
V
O
= –10 dBm
THD = 10%
3.2
3.7
mA
Voltage gain
6.8
7.8
8.8
dB
Channel balance
–1
0
+1
dB
Output power
25
38
mW
Total harmonic distortion
V
O
= –8 dBm, 20 kHz LPF
Rg = 10 k
, IHF A
T
UN
1kHz, V
O
= –10 dBm
fr = 100 kHz, Vr = –20 dBm, T
UN
100Hz
V
IN
= 2.4 Vp-p, f = 1 kHz, MUTE OFF
THD = 1%, T
UN
1kHz
Power on threshold voltage
0.03
0.1
%
Output noise voltage
V
NO
CT
–100
–90
dBm
Crosstalk
70
80
dB
Ripple rejection ratio
SVRR
60
70
dB
Peak output voltage
V
O
BEEP
V
OFF
V
1 ON
V
1 OFF
V
20 ON
V
20 OFF
V
4 ON
V
4 OFF
1.0
2.7
mV
Muting attenuation
–100
–120
dB
Power on voltage sensitivity
1.6
V
Power off voltage sensitivity
Power off threshold voltage
0.5
V
Mute on voltage sensitivity
Muting on threshold voltage
1.4
V
Mute off voltage sensitivity
Muting off threshold voltage
0.5
V
Boost on voltage sensitivity
Boost on threshold voltage
0.5
V
Boost off voltage sensitivity
Ta = 25°C, V
CC
= 2.7 V, f
IN
= 1 kHz, R
L
= 47 k
(Characteristics when used as a line output), L.B OFF
Operating current drain
Boost off threshold voltage
1.4
V
I
CC
2
THD2
V
O
= 0 dBm (With 2 channels driven)
V
O
= 0 dBm, 20 kHz LPF
Rg = 10 k
, IHF A
T
UN
1kHz, V
O
= –10 dBm
fr = 100 kHz, Vr = –20 dBm, T
UN
100Hz
1.5
2.0
mA
Total harmonic distortion
0.005
0.05
%
Output noise voltage
V
NO
2
CT2
–100
–90
dBm
Crosstalk
80
90
dB
Ripple rejection ratio
SVRR2
65
78
dB
Electrical Characteristics
at Ta = 25°C, V
CC
= 2.4 V, f
IN
= 1 kHz, R
L
= 16
Switch Threshold Voltages and Pin Influx Currents
Standby switch (pin 1)
H : IC ON
L : IC OFF
P
μ
A
0
20
40
60
80
100
120
0
1
2
3
4
5
V
1
(V)
H
L
Mute switch (pin 20), boost switch (pin 4)
P
μ
A
0
0
20
40
30
0
1
2
V
20
, V
4
(V)
3
4
5
H
L
H : MUTE ON, L. B OFF
L : MUTE OFF, L. B ON
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PDF描述 |
|---|---|
| LA4802T | Headphone Stereo Power Amplifier |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LA4802T | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Headphone Stereo Power Amplifier |
| LA4805 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:3V Stereo Headphone Power Amplifier |
| LA4805V | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:3V Stereo Headphone Power Amplifier |
| LA4809M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Stereo Headphone Amplifier |
| LA4809M-TLM-E | 功能描述:音頻放大器 STEREO HP AMPLIFIER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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