LA1805 Ver la hoja de datos (PDF) - SANYO -> Panasonic
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LA1805 Datasheet PDF : 13 Pages
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LA1805
Operating Conditions at Ta=25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended operating voltage VCC
Operating voltage range
VCC op
4.5
V
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
Unit
min typ max
[FM characteristics (Mono) : fc=10.7MHz, fm=1kHz]
Quiescent current
Icco
No input
13
20 mA
–3dB sensitivity
–3dBL.S. Referenced to VIN=100dBµ,
100%, down 3dB
28
35 dBµ
Demodulation output
Channel balance
Total harmonic distortion
VO
C.B.
THD
VIN=100dBµ, 100% mod.
VIN=100dBµ, 100% mod.
VIN=100dBµ, 100% mod.
140 205
0
0
0.45
280 mV
1.5 dB
1.2 %
Signal to noise ratio
LED ON sensitivity
S/N
VLED
VIN=100dBµ, 100% mod.
IL=1mA
70
80
dB
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.
VO2
VIN=80dBµ, 30% mod.
Signal to noise ratio
S/N1
VIN=23dBµ, 30% mod.
S/N2
VIN=80dBµ, 30% mod.
Total harmonic distortion
THD1
VIN=80dBµ, 30% mod.
THD2
VIN=100dBµ, 30% mod.
LED on sensitivity
VLED
IL=1mA
Note : Be fully careful of dielectric breakdown.
27
50
70 113
17
21
50
55
0.45
0.6
16
24
90 mV
173 mV
dB
dB
1.2 %
1.5 %
32 dBµ
Equivalent Circuit Block Diagram
No.2887-2/13
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