SP8715SLASHIGSLASHMPAC datasheet(2/11 Pages) ZARLINK

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SP8715

1100MHz Very Low Current Multi-Modulus Divider

DS3830

ISSUE 4.2

September 1999

Ordering Information

SP8715/IG/MPAS Industrial Temperature Range

Miniature Plastic SOIC Package

SP8715/IG/MPAC As Above supplied on Tape

and Reel

Description

The SP8715 is a switchable divide by 64/65, 128/129

programmable divider which is guaranteed to operate

up to 1100MHz. It will operate from a supply of 2.7V to

5.25V and requires typically 3.6mA (including the output

current). It also features a power down facility for battery

economy.

The RF inputs are internally biased and should be

capacitively coupled to the signal source. The output is

designed to interface with CMOS synthesisers.

Features

G Operation to 1100MHz

G Very Low Power

G Single Supply Operation 2.7V to 5.25V

G Power Down Facility for Battery Economy

G Latched Modulus Control Input

G Push Pull Output Drive

G ESD Protection on All Pins†

Applications

G Cellular Telephones

G Cordless Telephones

G Mobile Radio

† ESD precautions must be observed

BIAS

250K

NOMINAL

POWER

DOWN

OUTPUT

INPUT

(CLOCK)

DIVIDE BY

4 / 5

DIVIDE BY

16 / 32

CONTROL

LOGIC

D TYPE

Figure 1 Block Diagram

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