參數(shù)資料
型號(hào)： LA4590W
元件分類： 音頻／視頻放大
英文描述： 0.021 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48
封裝： 0.50 MM PITCH, SQFP-48
文件頁(yè)數(shù)： 12/19頁(yè)
文件大小： 538K
代理商： LA4590W
Operating Characteristics
at Ta = 25°C, VCC = 1.2 V, f = 1 kHz, 0.775 V = 0 dBm, RL = 10 k (preamp), RL = 16 (power amplifier)
Note: L.B.: Low boost
No. 4468-2/19
LA4590W
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
[Preamplifier + Power Amplifier]
Quiescent current
ICCO1
Rg = 2.2 k
, R
V = 0
815
24
mA
ICCO2
With the power switch off
0.1
5
A
Voltage gain (closed)
VGT
VO = –20 dBm, RV = 10 k
54
57
60
dB
[Preamplifier]
Voltage gain (open)
VG0
VO = –20 dBm
60
67
dB
Voltage gain (closed)
VG1
VO = –20 dBm
34
35.3
37
dB
VG2
VO = –20 dBm, f = 10 kHz, metal selected
25.5
28
30.5
dB
Maximum output voltage
VO max
THD = 1%
100
210
mV
Total harmonic distortion
THD1
VG = 35.3 dB/NAB, VO = 100 mV
0.2
0.5
%
Input conversion noise voltage
VNI
Rg = 2.2 k
, BPF: 20 Hz to 20 kHz
1.3
3.0
V
Crosstalk, inter-channel
CT1
Rg = 2.2 k
, 1 kHz TUNE, V
O = –20 dBm
45
56
dB
Crosstalk, F/R
CT2
Rg = 2.2 k
, 1 kHz TUNE, V
O = –20 dBm
65
78
dB
Ripple exclusion ratio
Rr1
Rg = 2.2 k
, Vr = –30 dBm, fr = 100 Hz
45
52
dB
100 Hz TUNE
Muted output voltage
VM1
Vi = –40 dBm, 1 kHz TUNE, Muting on
–90
dBm
[Low boost + Power Amplifier]
VG3
VO = –20 dBm
20.5
23
25.5
dB
Voltage gain (closed)
VG4
VO = –20 dBm, L.B. = on
20.5
23
25.5
dB
VG5
VO = –20 dBm, L.B. = on, f = 10 kHz
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
%
Inter-channel 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 exclusion ratio
Rr2
RV = 0 , Vr = –30 dBm, fr = 100 Hz,
50
74
dB
100 Hz TUNE
Muted output voltage
VM2
Vi = –30 dBm, 1 kHz TUNE, Muting on
–90
dBm
Input resistance
Ri
8
10
12
k
Voltage gain difference
VG
3
0
1.5
dB
[Ripple Filter]
Ripple exclusion ratio
Rr3
fr = 100 Hz, Vr = –30 dBm, VCC = 1.0 V,
33
39
dB
IRF = 25 mA, 2SB1295, using a rank 6 hFE
Output voltage
VRF
VCC = 1.0 V, IRF = 25 mA
0.89
0.93
V
[AMS]
Operating output voltage
VOAMS
With the Preout output K22 on when the
1.80
2.55
3.6
mV
AMS OUT output peak voltage is 0.6 Vp-p.
Specifications
Maximum Ratings at Ta = 25°C
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
3.0
V
Allowable power dissipation
Pd max
320
mW
Operating temperature
Topr
–10 to +60
°C
Storage temperature
Tstg
–40 to +125
°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
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