參數(shù)資料
型號(hào)： LA4587M
廠商： Sanyo Electric Co.,Ltd.
英文描述： Tuning Fork Crystal; Frequency:32.768kHz; Frequency Tolerance:+/- 20 ppm; Load Capacitance:12.5pF; Crystal Terminals:PCB Surface Mount; ESR:50kohm; Leaded Process Compatible:No; Peak Reflow Compatible (260 C):No; Number of Pins:4
中文描述： 前置放大器功率放大器為1.5 V耳機(jī)音響
文件頁(yè)數(shù)： 2/18頁(yè)
文件大?。?/td> 342K
代理商： LA4587M
Operating Conditions
at Ta = 25°C
Parameter
Symbol
V
CC
V
CC
op
Conditions
Ratings
Unit
V
V
Recommended supply voltage
Operating supply voltage range
1.5
0.95 to 2.2
Operation Characteristics
at Ta = 25°C, V
CC
= 1.2 V, f = 1 kHz, 0.775 V = 0 dBm,
R
L
= 10 k
(preamplifier), R
L
= 16
(power amplifier)
Parameter
Symbol
Conditions
min
typ
max
Unit
[Preamplifier + Power Amplifier]
Quiescent current
I
CCO
1
I
CCO
2
VG
T
Rg = 2.2 k
, Rv = 0
When power switch is off
V
O
= –20 dBm, R
V
= 10 k
8
15
0.1
57
24
mA
μA
dB
5
Voltage gain (closed)
[Preamplifier]
Voltage gain (open)
54
60
VG
0
VG
1
VG
2
V
O
max
THD
1
V
NI
CT
1
V
O
= –20 dBm
V
O
= –20 dBm
V
O
= –20 dBm, f = 10 kHz, metal on
THD = 1 %
VG = 35.5 dB/NAB, V
O
= 100 mV
Rg = 2.2 k
, BPF: 20 Hz to 20 kHz
Rg = 2.2 k
, 1 kHz TUNE, V
O
= –20 dBm
60
34
73
dB
dB
dB
mV
%
μV
dB
Voltage gain (closed)
35.5
28
210
0.1
1.3
56
37
25.5
100
30.5
Maximum output voltage
Total harmonic distortion
Equivalent input noise voltage
Interchannel crosstalk
Interchannel crosstalk between
F and R
0.5
3.0
45
CT
2
Rg = 2.2 k
, 1 kHz TUNE, V
O
= –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)
VG
3
VG
4
VG
5
VG
6
P
O1
P
O2
THD
2
CT
3
V
NO
V
O
= –20 dBm
V
O
= –20 dBm, L.B. = on
V
O
= –20 dBm, L.B. = on, f = 10 kHz
V
O
= –20 dBm, L.B. = on, f = 100 Hz
THD = 10 %
THD = 10 %, f = 100 Hz, L.B. = on
P
O
= 1 mW
V
O
= –20 dBm, R
V
= 0
R
V
= 0
, BPF: 20 Hz to 20 kHz
R
V
= 0
, Vr = –30 dBm,
fr = 100 Hz, 100 Hz TUNE
V
IN
= –30 dBm, 1 KHz TUNE, mute on
20.5
20.5
24.5
30
23
23
25.5
25.5
30.5
38
dB
dB
dB
dB
mW
mW
%
dB
μV
27.5
34
Output power
5
9
13
21
0.5
43
35
Total harmonic distortion
Interchannel crosstalk
Output noise voltage
1.5
38
48
Ripple rejection ratio
Rr
2
50
74
dB
Output mute voltage
Input resistance
Voltage gain difference
[Ripple Filter ]
V
M
Ri
VG
3
–85
12
+1.5
dBm
k
dB
8
10
0
Ripple rejection ratio
Rr
3
fr = 100 Hz, Vr = –30 dBm, V
CC
= 1.0 V,
I
RF
= 25 mA, 2SB1295, h
FE
6 rank used
V
CC
= 1.0 V, I
RF
= 25 mA
33
39
dB
Output voltage
[AMSS]
V
RF
0.89
0.93
V
Operating output voltage
V
OAMSS
Preout voltage when AMSS V
O
= 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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