參數(shù)資料
型號(hào)： LA1824
廠商： Sanyo Electric Co.,Ltd.
英文描述： Single Chip Tuner IC for Use in Radio/Cassette Products with Manual Tuning
中文描述： 單芯片調(diào)諧器集成電路收音機(jī)/盒式磁帶產(chǎn)品的使用帶手動(dòng)調(diào)諧
文件頁數(shù)： 2/10頁
文件大小： 107K
代理商： LA1824
LA1824
No.6855-2/10
Operating Characteristics
at Ta = 25
°
C, VCC = 4.5 V, in the specified test using
the IC179-2 socket (Yamaichi Electric Co.,Ltd.)
FM front-end characteristics
at fc = 98 MHz, fm = 1 kHz, 22.5 kHz dev
Ratings
typ
Parameter
Symbol
Conditions
min
max
Unit
Local oscillator voltage
VOSC
No input, fosc = 108.7 MHz, the pin 20 output
with FET buffer gain ·= --10 dB
Referenced to VIN = 60 dB
μ
V EMF,
22.5 kHz dev, a 3 dB down input
30 dB quieting sensitivity
15
30
60
mVrms
Input limiting voltage
3 dB L.S.
--
13
-- dB
μ
V EMF
Quieting sensitivity
Q.S.
--
12
-- dB
μ
V EMF
FM IF characteristics (monaural)
at fc = 10.7 MHz, fm = 1 kHz, 75 kHz dev
Ratings
typ
13.7
190
Parameter
Symbol
Conditions
min
max
Unit
Quiescent current
Demodulation output
Signal-to-noise ratio
Total harmonic distortion (mono)
ICC(FM)
VO
S/N
THD
No input
VIN = 100 dB
μ
V, the pin 16 output
VIN = 100 dB
μ
V, the pin 16 output
VIN = 100 dB
μ
V, the pin 16 output
Referenced to VIN = 100 dB
μ
V,
75 kHz dev, a 3 dB down input
No mod, an input level great enough to turn
on the station detector
7.0
130
62
20
mA
260
mVrms
dB
%
70
0.4
--
--
1.2
Input limiting voltage
3 dB L.S.
21
32
42
dB
μ
V
Station detector sensitivity
SD-ON
--
33
--
dB
μ
V
FM IF characteristics (stereo)
at fc = 10.7 MHz, fm = 1 kHz, L + R = 90 %, Pilot = 10 %
Ratings
typ
Parameter
Symbol
Conditions
min
max
Unit
Separation
SEP
VIN = 100 dB
μ
V, L modulation, the pin
16 output/the pin 17 output
VIN = 100 dB
μ
V, the pilot modulation
search that V8 < 0.5 V
VIN = 100 dB
μ
V, Main modulation, the pin
16 output
25
40
--
dB
Stereo on level
ST-ON
1.5
3.5
6.3
%
Total harmonic distortion (main)
THD
--
0.5
1.2
%
AM characteristics
at fc = 1000 kHz, fm = 1 kHz, 30 % modulation
Ratings
typ
Parameter
Symbol
Conditions
min
max
Unit
Quiescent current
ICC(AM)
VO(1)
VO(2)
S/N(1)
S/N(2)
THD(1)
THD(2)
No input
VIN = 23 dB
μ
V, the pin 16 output
VIN = 80 dB
μ
V, the pin 16 output
VIN = 23 dB
μ
V, the pin 16 output
VIN = 80 dB
μ
V, the pin 16 output
VIN = 80 dB
μ
V, the pin 16 output
VIN = 107 dB
μ
V, the pin 16 output
No mod, an input level great enough to turn
on the station detector
5.0
18
50
15
47
8.5
40
85
20
53
0.5
0.5
15
70
130
mA
Detector output
mVrms
mVrms
dB
dB
%
%
Signal-to-noise ratio
--
--
Total harmonic distortion
--
--
1.3
1.5
Station detector sensitivity
SD-ON
--
26
--
dB
μ
V
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