參數(shù)資料
型號： LA4820M
廠商： Sanyo Electric Co.,Ltd.
英文描述： Monaural Speaker/Stereo Headphone Power Amplifier
中文描述： 單聲道喇叭/立體聲耳機功率放大器
文件頁數(shù)： 2/20頁
文件大?。?/td> 677K
代理商： LA4820M
Specifications
Maximum Ratings
at Ta = 25°C
Parameter
Symbol
V
CC
1,2 max
Pd max
Conditions
Ratings
Unit
V
mW
W
°C
°C
Maximum supply voltage
Allowable power dissipation
8.0
580
1.1
With Sanyo evaluation board (84.2
×
92.6 mm
2
)
Operating temperature
Storage temperature
Topr
Tstg
–20 to +75
–40 to +150
Operating Conditions
at Ta = 25°C
Parameter
Symbol
V
CC
1
V
CC
1 op
V
CC
2 op
Conditions
Ratings
Unit
V
V
V
Recommended supply voltage
Operating voltage range
6.0
2.5 to 7.2
2.0 to 7.2
Operating Characteristics
at Ta = 25°C, V
CC
1 = 6.0 V, fi = 1 kHz, 0.775 V = 0 dBm,
R
L
= 16
: monaural amplifier, R
L
= 16
: headphone amplifier
Parameter
Symbol
Conditions
min
typ
max
Unit
[Total]
Quiescent current
I
CCO
1
I
CCO
2
I
CCO
3
Ri
Rg = 0 k
, monaural amplifier
Rg = 0 k
, headphone amplifier
Headphone common amplifier off
7.0
5.5
4.0
10
11.5
9.0
6.3
13
21.0
14.0
10.0
16
mA
mA
mA
k
Input resistance
[Monaural Amplifier]
Output power
Voltage gain (closed)
Total harmonic distortion
Output noise voltage
Ripple rejection ratio
DC offset voltage
[Non-clipping + Monaural Amplifier]
Output power
Total harmonic distortion
[Output Limiter + Monaural Amplifier]
Output power
Total harmonic distortion
[Headphone Amplifier]
Output power
Voltage gain (closed)
Total harmonic distortion
Interchannel crosstalk
Output noise voltage
Ripple rejection ratio
DC offset voltage
[PVSS + Headphone Amplifier]
PVSS voltage
PVSS distortion factor
PVSS start input
P
O
1
VG1
THD1
V
NO
1
Rr1
V
OFF
1
THD = 10%, pin 12 connected to GND
V
O
= 0 dBm
P
O
= 100 mW
Rg = 0
, BPF = 20 to 20 kHz
Rg = 0
, Vr = 10 dBm, fr = 100 Hz
Between pin 19 and pin 21
500
36.0
760
39.0
0.1
170
77
mW
dB
%
μV
dB
mV
42.0
1.0
300
60
–80
0
+80
P
O
2
THD2
Vi = 0 dBm
Vi = 0 dBM
300
450
1.2
mW
%
2.0
P
O
3
THD3
Vi = 0 dBm, output limiter input resistance 220
Vi = 0 dBm, output limiter input resistance 220
120
200
0.5
300
1.2
mW
%
P
O
4
VG2
THD4
CT
V
NO
2
Rr2
V
OFF
2
THD = 10%
V
O
= –10 dBm
P
O
= 1 mW
VO = –5 dBm, Rg = 0
Rg = 0
, BPF = 20 to 20 kHz
Rg = 0
, Vr = 10 dBm, fr = 100 Hz
Between pin 15 and pin 16, and pin 16 and pin 17
30
120
18.3
0.1
39
16
92
mW
dB
%
dB
μV
dB
mV
15.3
21.3
0.5
30
35
70
–40
0
+40
V
O
THD5
V
OPi
Vi = –30 dBm, PVSS2
Vi = –30 dBm, PVSS2
PVSS2
Input width from the starting point to the point
where the output is +4 dB, PVSS ON
–39
–36
0.25
–55
–33
1.6
–51
dBm
%
dBm
–59
PVSS width
W
PVSS
28
35
dB
[Ripple Filter]
Output voltage
V
RF
I
RF
= 300 mA, 2SB1295 h
FE
6 used
Vr = –10 dBm, fr = 100 Hz, I
RF
= 300 mA,
2SB1295 h
FE
6 used
5.30
5.49
5.70
V
Ripple rejection ratio
Rr3
30
34
dB
LA4820M
No.5205-2/20
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