FM1236 Philips Semiconductors, FM1236 Datasheet - Page 9

• Manufacturer Part Number: FM1236
• Description: Desktop video & FM radio module system M/ N
• Manufacturer: Philips Semiconductors

Philips Components
Definitions of test signals (see Fig.2)
Aerial input characteristics
1997 Feb 03
A0: unmodulated vision
carrier
A1: RF M, N standard signal
with video modulation
B1: unmodulated sound
carrier M, N system
B2: FM modulated sound
carrier M, N system
B3: unmodulated sound
carrier M, N system
C1: FM modulated sound
carrier
C2: FM modulated sound
carrier
C3: FM modulated sound
carrier
VSWR
V
V
SYMBOL
PSM
ant
Desktop video & FM radio module
system M, N
TEST SIGNAL
reflection coefficient
surge protection voltage
antenna connection disturbance
voltage
PARAMETER
or 98.30
477.25
477.25
481.25
481.25
483.25
FREQ.
(MHz)
98.00
97.70
98.00
60 dB V
60 dB V
(top sync)
A0 to A1
A0 to A1
A0 to A1
60 dB V
60 dB V
60 dB V
AMPLITUDE
7 dB w.r.t.
7 dB w.r.t.
12 dB w.r.t.
referred to 75
(worst case on or between picture
and sound carrier at maximum gain):
1 to <54 MHz
54 to <300 MHz
300 to <1000 MHz
all channels in TV mode
FM (centre of channel)
9
100% (rest carrier 12.5%)
2T pulse and bar
CONDITIONS
impedance
VIDEO
MODULATION
1 kHz; modulation frequency
deviation 25 kHz;
75 s pre-emphasis
1 kHz; modulation frequency
deviation 22.5 kHz
1 kHz; modulation frequency
deviation 22.5 kHz
1 kHz; modulation frequency
deviation 75 kHz;
10% pilot carrier (L = R);
75 s pre-emphasis
5
MIN.
Preliminary specification
5
4
10
34
50
AUDIO
MAX.
FM1236
kV
dB V
dB V
dB V
UNIT