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FM1246/HM/I View Datasheet(PDF) - Philips Electronics

Part Name
Description
View to exact match
FM1246/HM/I
Philips
Philips Electronics Philips
FM1246/HM/I Datasheet PDF : 24 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Philips Components
Desktop video & FM radio module
system CCIR I
Preliminary specification
FM1246
Definitions of test signals (see Fig.2)
TEST SIGNAL
A0: unmodulated vision
carrier
A1: CCIR I standard signal
with video modulation
B1: unmodulated sound
carrier I system
B2: FM modulated sound
carrier I system
B3: unmodulated sound
carrier I system
C1: FM modulated sound
carrier
C2: FM modulated sound
carrier
C3: FM modulated sound
carrier
C4: FM modulated sound
carrier
C5: unmodulated sound
carrier
FREQ.
(MHz)
AMPLITUDE
480.25 60 dBµV
VIDEO
MODULATION
AUDIO
480.25
486.25
60 dBµV
(top sync)
7 dB w.r.t. A1
100% (rest carrier 10%)
2T pulse and bar
486.25 7 dB w.r.t. A1
478.25 15 dB w.r.t. A1
1 kHz; modulation frequency
deviation ±27 kHz;
50 µs pre-emphasis
87.5 60 dBµV
98.0 60 dBµV
108.0 60 dBµV
98.0 60 dBµV
98.0 60 to 100 dBµV
1 kHz; modulation frequency
deviation ±75 kHz;
10% pilot carrier (L = R)
1 kHz; modulation frequency
deviation ±75 kHz;
10% pilot carrier (L = R)
1 kHz; modulation frequency
deviation ±75 kHz;
10% pilot carrier (L = R)
1 kHz; modulation frequency
deviation ±22.5 kHz
Aerial input characteristics
SYMBOL
PARAMETER
VSWR reflection coefficient
VPSM
Vant
surge protection voltage
antenna connection disturbance
voltage
CONDITIONS
MIN.
referred to 75 impedance
(worst case on or between picture
and sound carrier at maximum gain):
all channels in TV mode
FM (centre of channel)
5
<1.75 GHz
MAX.
5
4
46
UNIT
kV
dBµV
1997 May 14
9
 

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