1

SP8715

SP8715

1100MHz Very Low Current Multi-Modulus Divider

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

DS3830

Issue 4.2

September 1999

Applications

Odering Information

SP8715/IG/MPAS Industrial Temperature Range

Miniature Plastic SOIC Package

SP8715/IG/MPAC As Above supplied on Tape

and Reel

BIAS

V

CC

2

7

5

250K

NOMINAL

4

CK

D

Q

6

3

V

CC

V

EE

1

8

V

EE

POWER

DOWN

OUTPUT

MC

RS

RF

INPUT

(CLOCK)

DIVIDE BY

4 / 5

DIVIDE BY

16 / 32

CONTROL

LOGIC

D TYPE

Figure 1 Block Diagram