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LA1805 Scheda tecnica(PDF) 2 Page - Sanyo Semicon Device

Il numero della parte LA1805
Spiegazioni elettronici  AM/FM-IF/MPX Tuner System for Radio-Casette Recorders, Music Centers
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Produttore elettronici  SANYO [Sanyo Semicon Device]
Homepage  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LA1805 Scheda tecnica(HTML) 2 Page - Sanyo Semicon Device

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LA1805
No.2887-2/13
Operating Conditions at Ta=25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended operating voltage VCC
4.5
V
Operating voltage range
VCC op
3.0 to 8.0
V
Note : The FM output level forms an N curve (LA1805) and an S curve (LA1806).
LA1805 : N curve (for US band)
LA1806 : S curve (for Japanese band). Your desired output level can be set by varying the output resistance.
Operating Characteristics at Ta=25°C, VCC=4.5V, See Test Circuit
Parameter
Symbol
Conditions
Ratings
min
typ
max
Unit
[FM characteristics (Mono) : fc=10.7MHz, fm=1kHz]
Quiescent current
Icco
No input
13
20
mA
–3dB sensitivity
–3dBL.S.
Referenced to VIN=100dBµ,
28
35
dBµ
100%, down 3dB
Demodulation output
VO
VIN=100dBµ, 100% mod.
140
205
280
mV
Channel balance
C.B.
VIN=100dBµ, 100% mod.
0
0
1.5
dB
Total harmonic distortion
THD
VIN=100dBµ, 100% mod.
0.45
1.2
%
Signal to noise ratio
S/N
VIN=100dBµ, 100% mod.
70
80
dB
LED ON sensitivity
VLED
IL=1mA
23
33
43
dBµ
[FM characteristics (Stereo) : fc=10.7MHz, fm=1kHz, L+R=90%, pilot=10%, VIN=100dBµ]
Separation
Sep
32
48
dB
Stereo distortion
THD (Main)
0.45
1.2
%
LED ON level
VLED-on
2.4
3.9
5.4
%
LED OFF level
VLED-off
2.7
%
[AM characteristics : fc=1000kHz, fm=1kHz]
Quiescent current
Icco
No input
9.5
14.5
mA
Demodulation output
VO1
VIN=23dBµ, 30% mod.
27
50
90
mV
VO2
VIN=80dBµ, 30% mod.
70
113
173
mV
Signal to noise ratio
S/N1
VIN=23dBµ, 30% mod.
17
21
dB
S/N2
VIN=80dBµ, 30% mod.
50
55
dB
Total harmonic distortion
THD1
VIN=80dBµ, 30% mod.
0.45
1.2
%
THD2
VIN=100dBµ, 30% mod.
0.6
1.5
%
LED on sensitivity
VLED
IL=1mA
16
24
32
dBµ
Note : Be fully careful of dielectric breakdown.
Equivalent Circuit Block Diagram


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