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TECHNICAL SPECIFICATION
TECHNIAL DESCRIPTION
TUNER using SI4705
GENERAL PART
WAVE RANGE
FM
87.5 - 108.00 MHz (12/05/79)
NC
AERIAL
FM
:
75 OHM ANT
MW
:
NC
INDICATORS LCD DISPLAY
ELECTRICAL DATA
A.M
Amplification Reverse
AGC Figure of Merit
Distortion ( RF 50mV, M 80% )
IF
Wave Range
Nom.
MW 600 kHz
Lim.
Nom.
MW 1400 kHz
Lim.
Nom.
FM 98 MHz
Lim.
TECHNIAL DESCRIPTION
SOFTWARE IMPLEMENTED CLOCK / TIMER FUNCTION WITH 75.000kHz QUARTZ OSCILLATOR.
GENERAL PART
Timer Setting
Timer Wakeup Mode
Remarks Time Setting
Volume at Wakeup
1-5
TOLERANCE
Quartz Precision
Nom
Limit
Unit
/
/
dB
/
/
dB
/
/
%
/
/
kHz
Noise Limited Sensitivity 26 dB
1500uV/M
4000uV/M
1500uV/M
4000uV/M
18dBf
22dBf
:
Clock and Timer
:
LAST SETTING (MODE)
:
for 24hrs
:
Last Setting
:
1
:
Normal: 0.5 sec/day
F.M.
- 3 dB Limiting Point
Amplification Reverse
Distortion ( RF 1mV, Frq Dev.75 kHz )
Stereo - 46 dB Quieting
Crosstalk (RF1mV, Freq Dev.40kHz )
IF
IF Rejection
Search tuning
sensitivity dBf
dB
/
/
/
/
/
/
/
/
22 dBf
/
35 dBf
/
Limit : 1 sec/day
TUNING GRID
50KHZ
Nom
Limit
Unit
:
17
23.5
dBf
:
0
-4
dB
:
2
3
%
:
46
49
dBf
:
25
18
dB
/
/
MHz
Selectivity
Large Signal
S3 / S9 / 300kHz
dB
/
/
/
/
/
/
/
/
116 dBf
30
108 dBf
25
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