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參數(shù)資料
| 型號： | LA1145 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | FM IF System (Quadrature Detector) for Car Radio |
| 中文描述： | 如果系統(tǒng)（正交探測器）車用收音機(jī)調(diào)頻 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大小： | 335K |
| 代理商： | LA1145 |
Operating Conditions
at Ta = 25°C
Parameter
Symbol
V
CC
V
CC
op
Conditions
Ratings
Unit
V
V
Recommended supply voltage
Operating voltage range
8
7.5 to 14
Operating Characteristics
at Ta = 25 °C, V
CC
= 8 V, f
in
= 10.7 MHz
Parameter
Symbol
I
CCO
I
CC
V
O
Conditions
min
typ
26
29
400
max
Unit
mA
mA
Quiescent current
Current drain
Demodulation output
V
IN
= 0 dBμ
V
IN
= 100 dBμ
V
IN
= 100 dBμ, 400 Hz tone, 100%
V
IN
= 100 dBμ, 400 Hz tone, 100%,
single tuning coil
V
IN
= 100 dBμ, 400 Hz tone, 100%
400 Hz tone, 100%, soft mute ON
V
16
= 2 V
V
IN
= 100 dBμ, V
19
%
0.3 V
V
IN
= 100 dBμ, V
16
= 2 V,
400 Hz tone, 100%
V
IN
= 100 dBμ, V
16
= 4 V,
400 Hz tone, 100%
V
IN
= 0 dBμ, R
16
= 10 k
, pin 17
V
IN
= 50 dBμ, R
16
= 10 k
, pin 17
V
IN
= 70 dBμ, R
16
= 10 k
, pin 17
V
IN
= 100 dBμ, R
16
= 10 k
, pin 17
V
IN
= 0 dBμ, pin 16
V
IN
= 100 dBμ, pin 16
V
IN
= 100 dBμ, 1 kHz tone, 30% AM
V
IN
= 0 dBμ, pin 8 to 12
V
IN
= 0 dBμ, pin 9 to 12
Pin 19
V
IN
= 100 dBμ, pin 14, C
L
= 10 pF
V
IN
= 100 dBμ, pin 14, C
L
= 10 pF
18
20
300
36
40
520 mVrms
Total harmonic distortion
THD
0.3
0.8
%
Signal-to-noise ratio
Input limiting voltage
Muting sensitivity
Muting bandwidth
S/N
79
34
30
140
85
40
36
190
dB
dBμ
dBμ
kHz
V
IN
(lim)
V
IN
(mute)
BW (mute)
46
42
280
Muting attenuation
mute (1)
10
15
20
dB
mute (2)
25
29
33
dB
Signal strength
indication output
V
17-0
V
17-50
V
17-70
V
17-100
V
16-0
V
16-100
AMR
V
8-12
V
9-12
V
SD
V
IF
-On
V
IF
-OFF
0
0.1
2.3
4.5
5.5
4.8
0.4
3.2
5.5
6.0
5.5
0.3
V
V
V
V
V
V
dB
V
V
dBμ
1.4
2.5
5.0
4.0
Muting drive output
0
0
AM rejection ratio
57
70
Offset voltage
–0.25
–0.5
0
0
+0.25
+0.5
SD sensitivity
50
110
58
180
66
280 mVrms
3 mVrms
IF count output level
1
A
Ambient temperature, Ta – °C
A
Mounted on PCB
(90
×
60
×
1.5 mm
3
glass epoxy
Independent
IC
Ambient temperature, Ta – °C
Pd max – Ta
Pd max – Ta
LA1145, 1145M
No. 2725-3/17
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