SP5668KGMP1T Просмотр технического описания (PDF) - Mitel Networks

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SP5668KGMP1T

2.7GHz 3-Wire Bus Controlled Synthesiser

Mitel Networks 

SP5668

2.7GHz 3-Wire Bus Controlled Synthesiser

Preliminary Information

DS4538 - 1.6 January 1997

.

The SP5668 is a single chip frequency synthesiser

designed for tuning systems up to 2.7GHz.

The RF preamplifer contains a divide by two prescaler

which can be disabled for applications up to 2GHz so enabling

a step size equal to the comparison frequency up to 2GHz and

twice the comparison frequency up to 2.7GHz.

Comparison frequencies are obtained either from a crystal

controlled on–chip oscillator or from an external source.

The device contains three switching ports, P0 – P2,

together with an ’in–lock’ flag output. Various test modes

including varactor disable and charge pump disable are also

included.

FEATURES

s Complete 2.7GHz single chip system

s Optimised for low phase noise

s Selectable divide by two prescaler

s Selectable reference division ratio

s Charge pump disable

s Varactor line disable

s ‘In–lock’ flag

s Two selectable charge pump currents

s Three switching ports

s Reference frequency output

s ESD protection (Normal ESD handling procedures

should be observed)

CHARGE PUMP

CAP Q1

CRYSTAL Q2

ENABLE

DATA

CLOCK

PORT P2

PORT P1/OC

DRIVE

VEE

RF INPUT

RF INPUT

VCC

LOCK

REF

PORT P0/OC

Fig. 1 Pin connections - top view

MP16

APPLICATIONS

s SAT, TV, VCR and Cable tuning systems

s Communications systems

ORDERING INFORMATION

SP5668/KG/MP1S (Tubes,)

SP5668/KG/MP1T Tape and Reel)

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