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Zarlink Semiconductor

SL1451 Datasheet Preview

SL1451 Datasheet

WIDEBAND PLL FM DETECTOR

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ADVANCE INFORMATION
2042-2·1
SL1451
WIDEBAND PLL FM DETECTOR FOR SATELLITE TV
The SL1451 is a phase locked loop demodulator for use in
wideband FM systems. It is intended for use with an IF input
frequency from 300MHz to 700MHz in satellite receivers. It
consists of an input RF amplifier, signal level detector, UHF phase
detector UHF oscillator and video/loop amplifier. Both positive
and negative going video outputs are available.
FEATURES
I Complete PLL System for Wideband FM Demodulator
I Noise Threshold Performance: 8dB (Typ.)
I Low External Component Count
I Positive and Negative going Video Output
I Demodulates FM Signals with up to 28MHz p-p
Deviation
APPLICATIONS
I DBS Receivers
I Wideband Data Communications Demodulation
ORDERING INFORMATION
SL1451 NA DP (16-lead plastic DIL package)
LOOP FEEDBACK 1 1
16 LOOP FEEDBACK 2
0V 2
15 VIDEO OUTPUT
OSCILLATOR EMITTER 3
14 VIDEO OUTPUT
OSCILLATOR BASE 4
13 VCC
SL1451
OSCILLATOR VCC 5
12 RF IN
PHASE DETECTOR IN 6
11 RF IN
PHASE DETECTOR IN 7
10 RF AMP GAIN CONTROL
0V 8
9 AGC OUTPUT
DP16
Fig. 1 Pin connections - top view
ABSOLUTE MAXIMUM RATINGS
Operating temperature range
Supply voltage, VCC
Storage temperature
Junction temperature
210°C to180°C
11V
255°C to 1150°C
1175°C
RF GAIN
CONTROL
10
AGC PHASE DETECTOR INPUTS
OUTPUT
INPUT INPUT
9 67
RF INPUT 12
RF INPUT 11
RF AMPLIFIER
OSC VC 5
3·3k
OSC BASE
OSC EMITTER
4
3
2·2k
4·9k
PHASE
DETECTOR
OSCILLATOR
TRANSISTOR
820
VEE2
LOOP FEEDBACK
INPUT 1
1
VCC
13
680
570
14 VIDEO OUTPUT
15 VIDEO OUTPUT
570 VIDEO AMPLIFIER
680
16
LOOP FEEDBACK
INPUT 2
28
VEE1 VEE2
Fig. 2 Block diagram




Zarlink Semiconductor

SL1451 Datasheet Preview

SL1451 Datasheet

WIDEBAND PLL FM DETECTOR

No Preview Available !

SL1451
ELECTRICAL CHARACTERISTICS
These characteristics are guaranteed over the following conditions (unless otherwise stated):
TAMB = 125°C, VCC = 7·4V to 9V
Characteristic
Value
Pin Units
Min. Typ. Max.
Conditions
Supply current
Supply voltage
Minimum oscillator frequency
Maximum oscillator frequency
Phase detector input level from oscillator
RF input level
Phase detector gain
AGC output
Oscillator lock range
VCO slope
Video output voltage
Intermodulation products
Video bandwidth
13,5 40
13,5 7·4
6,7 400
11,12 12·5
9
14,15
55 70
mA
8·2 9
V
300 MHz
700 MHz
70 100
mV
40 125
mV
0·5 V/Radian
300 µA No input signal
140 µA 220dBm input signal
50 MHz See note 1
14 MHz/V
1·5 V p-p 21·4MHz p-p deviation
240 dBm See note 2
18 MHz
NOTES
1. All characteristics from Oscillator Lock Range to Video Bandwidth are measured using the application circuit Fig. 3.
2. Signal 1: 4·433MHz, deviation = 21·4MHz p-p.
Signal 2: 6MHz, deviation = 3MHz p-p.
10n
1k
BB405
41/2TURNS
22SWG
3·3p
12n 3·9p
1k
3·3p
1n 1n
1 16
2 15
3 14
4 13
SL1451
5 12
6 11
7 10
89
330k
8·2V
4·7µ
100
VIDEO
10n 100
1n
1n
1n
1n
10k
VIDEO
RF INPUT
Fig. 3 Typical application circuit
2


Part Number SL1451
Description WIDEBAND PLL FM DETECTOR
Maker Zarlink Semiconductor
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SL1451 Datasheet PDF






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