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參數資料
| 型號： | LA1235 |
| 元件分類： | 接收器 |
| 英文描述： | FM, AUDIO DEMODULATOR, PDIP16 |
| 封裝： | DIP-16 |
| 文件頁數： | 6/13頁 |
| 文件大小： | 289K |
| 代理商： | LA1235 |
LA1235
No. 873- 2/13
Specifications
Maximum Ratings at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
Pin 11
16
V
Input voltage
VIN
Pins 1 to 2
±1
Vp-p
Supply current
ICC
Pin 11
40
mA
Flow-in current
I5
Pin 5
3
mA
I10
Pin 10
2
mA
Flow-out current
I13
2mA
Allowable power dissipation
Pd max
650
mA
Operating temperature
Topr
20 to +70
°C
Storage temperature
Tstg
40 to +125
°C
Recommended Operating Conditions at Ta = 25
°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
10 to 14
V
Electrical Characteristics at Ta = 25
°C, VCC = 12V, f = 10.7MHz
Ratings
Parameter
Symbol
Conditions
min
typ
max
Unit
Quiescent current
ICCO
Quiescent
21
30
mA
Current drain
ICC
VIN = 100dBμ
22
31
mA
Detection output
VO
VIN = 100dBμ, 400Hz, 100% mod.
310
430
590
mVrms
S/N
VIN = 100dBμ, 400Hz, 100% mod.
82
88
dB
3dB limiting sensitivity
VIN (lim)
VO : 3dB, 400Hz, 100% mod.
25
31
dB
μ
Muting sensitivity
VIN (mute)
V12 = 5.6V, R16 = 56kΩ, R15 = 50kΩ
40
50
dB
μ
Muting attenuation
mute (att)
VIN = 100dBμ, 400Hz, 100% mod.
V5 = 3.5V
80
100
dB
Muting bandwidth
BW (mute)
VIN = 100dBμ, V12 = 3V
120
200
330
kHz
V12 (1)
Quiescent
5.6
6.2
6.8
V
Muting driving output
V12 (2)
VIN = 100dBμ
0
0.3
V
Total harmonic distortion
THD
VIN = 100dBμ, 400Hz, 100% mod.
0.015
0.05
%
AM supperssion ratio
AMR
VIN = 80dBμ, FM = 400Hz, 100% mod,
AM = 1kHz, 30% mod.
45
60
dB
V13 (1)
Quiescent
0
0.1
V
V13 (2)
VIN = 35dBμ
0.1
0.5
V
V13 (3)
VIN = 70dBμ
1.3
2.0
2.9
V
Signal meter driving output
V13 (4)
VIN = 100dBμ
2.2
3.5
5.0
V
V6-10
Quiescent, pin 6 to 10
0.8
0
+0.8
V
Offset voltage
V7-10
Quiescent, pin 7 to 10
0.4
0
+0.4
V
Tuning meter null voltage
V7-10 (null)
V5 = 7.5V, pin 7 to 10
50
+5
+50
mV
IF-off voltage
I15 (IF off)
V2-3 = 1V
5.6
7.5
V
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