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LA1145 , 1145M
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Operating voltage range
Symbol
V CC
V CC op
Conditions
Ratings
8
7.5 to 14
Unit
V
V
Operating Characteristics at Ta = 25 °C, V CC = 8 V, f in = 10.7 MHz
Parameter
Quiescent current
Current drain
Demodulation output
Symbol
I CCO
I CC
V O
Conditions
V IN = 0 dB μ
V IN = 100 dB μ
V IN = 100 dB μ , 400 Hz tone, 100%
min
18
20
300
typ
26
29
400
max Unit
36 mA
40 mA
520 mVrms
Total harmonic distortion
THD
V IN = 100 dB μ , 400 Hz tone, 100%,
single tuning coil
0.3
0.8
%
Signal-to-noise ratio
S/N
V IN = 100 dB μ , 400 Hz tone, 100%
79
85
dB
Input limiting voltage
Muting sensitivity
Muting bandwidth
Muting attenuation
Signal strength
indication output
Muting drive output
AM rejection ratio
Offset voltage
SD sensitivity
IF count output level
V IN (lim)
V IN (mute)
BW (mute)
mute (1)
mute (2)
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
400 Hz tone, 100%, soft mute ON
V 16 = 2 V
V IN = 100 dB μ , V 19 % 0.3 V
V IN = 100 dB μ , V 16 = 2 V,
400 Hz tone, 100%
V IN = 100 dB μ , V 16 = 4 V,
400 Hz tone, 100%
V IN = 0 dB μ , R 16 = 10 k Ω , pin 17
V IN = 50 dB μ , R 16 = 10 k Ω , pin 17
V IN = 70 dB μ , R 16 = 10 k Ω , pin 17
V IN = 100 dB μ , R 16 = 10 k Ω , pin 17
V IN = 0 dB μ , pin 16
V IN = 100 dB μ , pin 16
V IN = 100 dB μ , 1 kHz tone, 30% AM
V IN = 0 dB μ , pin 8 to 12
V IN = 0 dB μ , pin 9 to 12
Pin 19
V IN = 100 dB μ , pin 14, C L = 10 pF
V IN = 100 dB μ , pin 14, C L = 10 pF
34
30
140
10
25
0
1.4
2.5
5.0
4.0
0
57
–0.25
–0.5
50
110
40
36
190
15
29
0.1
2.3
4.5
5.5
4.8
0
70
0
0
58
180
1
46
42
280
20
33
0.4
3.2
5.5
6.0
5.5
0.3
+0.25
+0.5
66
280
3
dB μ
dB μ
kHz
dB
dB
V
V
V
V
V
V
dB
V
V
dB μ
mVrms
mVrms
Pd max – Ta
Ambient temperature, Ta – °C
Pd max – Ta
Mounted on PCB
(90 × 60 × 1.5 mm 3 glass epoxy
Independent
IC
Ambient temperature, Ta – °C
No. 2725-3/17
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