SL1454 Просмотр технического описания (PDF) - Zarlink Semiconductor Inc
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SL1454 Datasheet PDF : 9 Pages
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ADVANCE INFORMATION
2039-2·1
SL1454
WIDEBAND LINEAR FM DETECTOR FOR SATELLITE TV
The SL1454 is a wideband FM demodulator designed to
operate with a carrier frequency between 70MHz and 150MHz.
The internal circuitry of the device is similar to that of the SL1452
except that the quadrature demodulator operates at the input
frequency.
FEATURES
s Excellent Threshold
s Negligible Differential Gain and Phase Errors
s Video Bandwidth Suitable for High Definition TV
s High Sensitivity and Wide Dynamic Range
s Wide Operating Frequency Range: 70 to 150MHz
ORDERING INFORMATION
SL1454 NA DP (14-lead plastic DIL package)
0V
DEMODULATOR COIL
DEMODULATOR COIL
0V
1
8
2
7
SL1454
3
6
4
5
INPUT SIGNAL
INPUT REF
VCC
VIDEO OUTPUT
Fig. 1 Pin connections - top view
DP8
ABSOLUTE MAXIMUM RATINGS
Operating temperature range
Supply voltage, pin 6
Input voltage, pin 7 or 8
Storage temperature
Junction temperature
210°C to180°C
7V
2·5V p-p
255°C to 1150°C
1175°C
INPUT REF 7
INPUT SIGNAL 8
1k
2k
70p
1k
2k
INPUT
AMPLIFIER
QUADRATURE
DEMODULATOR
COMPONENTS VCC
23
6
2p
2p
5 VIDEO OUTPUT
DEMODULATOR
VIDEO
AMPLIFIER
Fig. 2 Block diagram
1
4
0V 0V
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