SP5070DP datasheet(1/7 Pages) MITEL

Part #	SP5070DP

Description	2.GHz Fixed Modulus Frequency Synthesiser

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Manufacturer	MITEL [Mitel Networks Corporation]

Direct Link	http://www.mitel.com

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14

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VCC

REF IN/CRYSTAL

OSCILLATORCAPACITOR

NC

RF INPUT

VEE

DP14

CPDIS

10

9

8

DRIVE OUTPUT

CHARGE PUMP

TEST 2

TEST 1

NC

RF INPUT

NC

SP5070

VCC

REF IN/CRYSTAL

OSCILLATORCAPACITOR

NC

RF INPUT

VEE

MP14

CPDIS

DRIVE OUTPUT

CHARGE PUMP

TEST 2

TEST 1

NC

RF INPUT

NC

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9

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SP5070F

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)

Fig.1 Pin connections - top view

Fig.2 Block diagram of SP5070

RF IN

OSCILLATOR

CAPACITOR

REF IN/

CRYSTAL

TEST 1 TEST 2

CPDIS

PUMP

DRIVE

V

CC

V

EE

FDIV

FCOMP

CHARGE

PUMP

FIXED

MODULUS

DIVIDER

÷8192

8

7

1

6

11

13

14

9

10

2

3

OUTPUT

BUFFER

COMP

PHASE

PRESCALER

÷32

PRE

AMP

REFERENCE

DIVIDER

÷1024

SP5070

2.GHz Fixed Modulus Frequency Synthesiser

DS3966-2.2 May 996

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