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PDF SP5070 Data sheet ( Hoja de datos )
| Número de pieza | SP5070 | |
| Descripción | 2.GHz Fixed Modulus Frequency Synthesiser | |
| Fabricantes | Mitel Networks | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SP5070 (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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SP5070
2.GHz Fixed Modulus Frequency Synthesiser
DS3966-2.2 May 996
The SP5070 is a single modulus frequency synthesiser
for use in Satellite TV receivers and together with an
appropriate voltage controlled oscillator (VCO), forms a
complete phase locked loop (PLL) synthesiser. The circuit
consists of a prescaler with preamplifier and a fixed modulus
divider. The phase comparator is fed with a reference
frequency derived from an external oscillator or crystal. The
comparator has a charge pump output amplifier stage
around which feedback may be applied. Only an external
transistor is required for varicap line driving.
FEATURES
s Low Power Consumption (5V, 47mA typ.)
s Prescaler and Preamplifier Included
s Charge Pump Amplifier with Feedback Point
s Charge Pump Disable Facility
s Synthesises Frequencies up to 2.4GHz
s Pin and Function Compatible with SP5060 and
SP5062
s Full ESD Protection*
* Normal ESD handling procedures should be observed.
APPLICATIONS
s Satellite TV
s High IF Cable Tuning Systems
s C-Band with Frequency Doubling Mixer
ORDERING INFORMATION
SP5070 DP
- (14 Lead Plastic Package)
SP5070F MP - (14 Lead Miniature Plastic Package)
VCC
RF INPUT
RF INPUT
NC
NC
VEE
DRIVE OUTPUT
1 14
2 13
3 12
4 SP5070 11
5 10
69
78
TEST 1
TEST 2
NC
CPDIS
REF IN/CRYSTAL
OSCILLATOR CAPACITOR
CHARGE PUMP
DP14
VCC
RF INPUT
1
2
14 TEST 1
13 TEST 2
RF INPUT
NC
3 12
SP5070F
4 11
NC
CPDIS
NC 5
VEE 6
10 REFIN/CRYSTAL
9 OSCILLATORCAPACITOR
DRIVE OUTPUT
7
8 CHARGE PUMP
Fig.1 Pin connections - top view
MP14
RF IN
RF IN
2
3
PRE
AMP
PRESCALER
÷32
FIXED
MODULUS
DIVIDER
÷8192
FDIV
PCHOAMSEP
REFERENCE
DIVIDER
÷1024
FCOMP
CHARGE
PUMP
9 10
OSCILLATOR REF IN/
CAPACITOR CRYSTAL
OUTPUT
BUFFER
14 13
11
TEST 1 TEST 2 CPDIS
Fig.2 Block diagram of SP5070
8
PUMP
7
DRIVE
1 VCC
6 VEE
1 page  
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet SP5070.PDF ] | |
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