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參數(shù)資料
| 型號： | LA1145 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PZIP18 |
| 封裝： | SIP-18 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 472K |
| 代理商： | LA1145 |
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
8V
Operating voltage range
VCC op
7.5 to 14
V
Operating Characteristics at Ta = 25 °C, VCC =8 V, fin = 10.7 MHz
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent current
ICCO
VIN =0dBμ
18
26
36
mA
Current drain
ICC
VIN = 100 dBμ
20
29
40
mA
Demodulation output
VO
VIN = 100 dBμ, 400 Hz tone, 100%
300
400
520 mVrms
Total harmonic distortion
THD
VIN = 100 dBμ, 400 Hz tone, 100%,
single tuning coil
0.3
0.8
%
Signal-to-noise ratio
S/N
VIN = 100 dBμ, 400 Hz tone, 100%
79
85
dB
Input limiting voltage
VIN (lim)
400 Hz tone, 100%, soft mute ON
34
40
46
dBμ
Muting sensitivity
VIN (mute)
V16 =2V
30
36
42
dBμ
Muting bandwidth
BW (mute)
VIN = 100 dBμ,V19 % 0.3 V
140
280
kHz
Muting attenuation
mute (1)
VIN = 100 dBμ,V16 =2 V,
400 Hz tone, 100%
10
15
20
dB
mute (2)
VIN = 100 dBμ,V16 =4V,
400 Hz tone, 100%
25
29
33
dB
Signal strength
indication output
V17-0
VIN =0dBμ,R16 =10kΩ, pin 17
0
0.1
0.4
V
V17-50
VIN =50dBμ,R16 =10kΩ, pin 17
1.4
2.3
3.2
V
V17-70
VIN =70dBμ,R16 =10kΩ, pin 17
2.5
4.5
5.5
V
V17-100
VIN = 100 dBμ,R16 =10kΩ, pin 17
5.0
5.5
6.0
V
Muting drive output
V16-0
VIN =0dBμ, pin 16
4.0
4.8
5.5
V
V16-100
VIN = 100 dBμ, pin 16
0
0.3
V
AM rejection ratio
AMR
VIN = 100 dBμ, 1 kHz tone, 30% AM
57
70
dB
Offset voltage
V8-12
VIN =0dBμ, pin 8 to 12
–0.25
0
+0.25
V
V9-12
VIN =0dBμ,pin9to12
–0.5
0
+0.5
V
SD sensitivity
VSD
Pin 19
50
58
66
dBμ
IF count output level
VIF-On
VIN = 100 dBμ, pin 14, CL = 10 pF
110
180
280 mVrms
VIF-OFF
VIN = 100 dBμ, pin 14, CL = 10 pF
1
3 mVrms
Allowable
power
dissipation,
P
d
m
ax
–
m
W
Ambient temperature, Ta – °C
Allowable
power
dissipation,
P
d
m
ax
–
m
W
Mounted on PCB
(90
× 60 × 1.5 mm3 glass epoxy
Independent
IC
Ambient temperature, Ta – °C
Pd max–Ta
Pdmax–Ta
LA1145, 1145M
No. 2725-3/17
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