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SP8715MPAS

1100MHz Very Low Current Multi-Modulus Divider

Mitel Networks 

SP8715

SP8715

1100MHz Very Low Current Multi-Modulus Divider

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

DS3830

Issue 4.2

September 1999

Odering 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.

6

MC

3

RS

RF

1

INPUT

(CLOCK)

8

CK

D

D TYPE Q

CONTROL

V

CC

LOGIC

VCC

2

BIAS

7 POWER

DOWN

250K 5

NOMINAL VEE

DIVIDE BY

4/5

DIVIDE BY

16 / 32

V

EE

4

OUTPUT

Figure 1 Block Diagram

1

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