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参数资料
| 型号： | LA4587M |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.021 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| 封装： | QIP-48 |
| 文件页数： | 11/18页 |
| 文件大小： | 407K |
| 代理商： | LA4587M |
Specifications
Maximum Ratings at Ta=25 °C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
3.0
V
Allowable power dissipation
Pd max
635
mW
Operating temperature
Topr
–10 to +60
°C
Storage temperature
Tstg
–40 to +125
°C
Operating Conditions at Ta=25 °C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
1.5
V
Operating supply voltage range
VCC op
0.95 to 2.2
V
Operation Characteristics at Ta=25 °C, VCC =1.2 V,f=1 kHz, 0.775 V = 0 dBm,
R
L =10k (preamplifier), RL =16 (power amplifier)
Parameter
Symbol
Conditions
min
typ
max
Unit
[Preamplifier + Power Amplifier]
Quiescent current
ICCO1
Rg = 2.2 k
, Rv=0
815
24
mA
ICCO2
When power switch is off
0.1
5
A
Voltage gain (closed)
VGT
VO = –20 dBm, RV =10k
54
57
60
dB
[Preamplifier]
Voltage gain (open)
VG0
VO = –20 dBm
60
73
dB
Voltage gain (closed)
VG1
VO = –20 dBm
34
35.5
37
dB
VG2
VO = –20 dBm, f = 10 kHz, metal on
25.5
28
30.5
dB
Maximum output voltage
VO max
THD=1%
100
210
mV
Total harmonic distortion
THD1
VG = 35.5 dB/NAB, VO = 100 mV
0.1
0.5
%
Equivalent input noise voltage
VNI
Rg = 2.2 k
, BPF: 20 Hz to 20 kHz
1.3
3.0
V
Interchannel crosstalk
CT1
Rg = 2.2 k
, 1 kHz TUNE, VO = –20 dBm
45
56
dB
Interchannel crosstalk between
F and R
CT2
Rg = 2.2 k
, 1 kHz TUNE, VO = –20 dBm
65
78
dB
Ripple rejection ratio
Rr1
Rg = 2.2 k
, Vr = –30 dBm,
fr = 100 Hz, 100 Hz TUNE
45
52
dB
[Low Boost + Power Amplifier]
Voltage gain (closed)
VG3
VO = –20 dBm
20.5
23
25.5
dB
VG4
VO = –20 dBm, L.B. = on
20.5
23
25.5
dB
VG5
VO = –20 dBm, L.B. = on,f=10kHz
24.5
27.5
30.5
dB
VG6
VO = –20 dBm, L.B. = on, f = 100 Hz
30
34
38
dB
Output power
PO1
THD=10%
5
9
mW
PO2
THD = 10 %, f = 100 Hz, L.B. = on
13
21
mW
Total harmonic distortion
THD2
PO = 1 mW
0.5
1.5
%
Interchannel crosstalk
CT3
VO = –20 dBm, RV =0
38
43
dB
Output noise voltage
VNO
RV =0 , BPF: 20 Hz to 20 kHz
35
48
V
Ripple rejection ratio
Rr2
RV =0 , Vr = –30 dBm,
fr = 100 Hz, 100 Hz TUNE
50
74
dB
Output mute voltage
VM
VIN = –30 dBm, 1 KHz TUNE, mute on
–85
dBm
Input resistance
Ri
8
10
12
k
Voltage gain difference
VG3
0
+1.5
dB
[Ripple Filter ]
Ripple rejection ratio
Rr3
fr = 100 Hz, Vr = –30 dBm, VCC = 1.0 V,
IRF = 25 mA, 2SB1295, hFE6 rank used
33
39
dB
Output voltage
VRF
VCC = 1.0 V, IRF = 25 mA
0.89
0.93
V
[AMSS]
Operating output voltage
VOAMSS
Preout voltage when AMSS VO = 0.6 Vp-p
Pin 34 is short-circuited through 270 k
.
1.80
2.55
3.60
mV
Note: L.B. = Low boost
LA4587M
No.5204-2/18
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