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参数资料
| 型号： | LA1235M |
| 元件分类： | 接收器 |
| 英文描述： | FM, AUDIO DEMODULATOR, PDSO16 |
| 封装： | 0.225 INCH, MFP-16 |
| 文件页数： | 2/5页 |
| 文件大小： | 149K |
| 代理商： | LA1235M |
LA1235M
No.A0203-2/5
Specifications
Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
Pin 11
13.5
V
Input voltage
VIN
Pins 1, 2
±1
Vp-p
Supply current
ICC
Pin 11
35
mA
Sink current
I5
Pin 5
3
mA
I10
Pin 10
2
mA
Source current
I13
Pin 13
2
mA
Allowable power dissipation
Pd max
Ta ≤ 70
°C *
500
mW
Operating temperature
Topr
-20 to +70
°C
Storage temperature
Tstg
-40 to +125
°C
* : When mounted on a 76.1
×114.3×1.6mm glass epoxy circuit board.
Note : This product is susceptible to damage by ESD and care is required in its handling.
Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
12
V
Operating supply voltage range
VCC op
10 to 13
V
Operating Characteristics at Ta = 25°C
VCC = 12V, fc = 10.7MHz, fm = 1kHz, dev = 75kHz, in the specified test circuit (using an IC socket)
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent current
ICCO
No signal
21
30
mA
Current drain
ICC
VIN = 100dBμV
22
31
mA
Detector output
VO
VIN = 100dBμV
310
430
590
mVrms
Signal-to-noise ratio
S/N
VIN = 100dBμV
82
88
dB
-3dB sensitivity
VIN (lim)
VIN = 100dBμV, the input for -3dB referenced to the
75kHz dev output.
25
31
dB
μV
Muting sensitivity
VIN (mute)
V12 = 5.6V, R16 = 56k
Ω, R15 = 51kΩ
40
50
dB
μ
Muting attenuation
Mute (att)
VIN = 100dBμV, V5 = 3.5V
80
100
dB
Muting bandwidth
BW (mute)
VIN = 100dBμV, V12 = 3V
120
200
330
kHz
Muting
V12 (1)
No signal
5.6
6.2
6.8
V
V12 (2)
VIN = 100dBμV
0
0.3
V
Total harmonic distortion
THD
VIN = 100dBμV
0.015
0.05
%
AM suppression
AMR
VIN = 80dBμV, fm = 1kHz,
referenced to the 75kHz dev, AM = 1kHz, 30% mod.
45
60
dB
V13 (1)
No signal
0
0.1
V
V13 (2)
VIN = 35dBμV
0.1
0.5
V
V13 (3)
VIN = 70dBμV
1.3
2.0
2.9
V
Signal meter voltage
V13 (4)
VIN = 100dBμV
2.2
3.5
5.0
V
V6-10
No signal, the voltage between pins 6 and 10.
-0.8
0
+0.8
V
Offset voltage
V7-10
No signal, the voltage between pins 7 and 10.
-0.4
0
+0.4
V
Tuning meter null voltage
V7-10 (null)
V5 = 7.5V, the voltage between pins 7 and 10.
-50
+50
mV
IF off voltage
V5 (IF off)
V2-3 = 1V, the voltage pin 5.
5.6
7.5
V
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