DS04-21377-1E

FUJITSU SEMICONDUCTOR

DATA SHEET

ASSP

Single Serial Input

PLL Frequency Synthesizer

On-chip 2.0 GHz Prescaler

MB15E05SR

s DESCRIPTION

The Fujitsu MB15E05SR is a serial input Phase Locked Loop (PLL) frequency synthesizer with a 2.0 GHz

prescaler. The 2.0 GHz prescaler has a dual modulus division ratio of 64/65 or 128/129 enabling pulse swallowing

operation.

The supply voltage range is between 2.7 V and 5.0 V. A refined charge pump supplies well-balanced output

currents of 1.0 mA and 4.0 mA. The charge pump current is selectable by serial data.

The phase noise of MB15E05SR was drastically improved comparing wuth the former single PLL, MB15E05SL.

The data format of serial data and the pin assignments except for

φP, φR and OSCout pins are same as the former

one, so it is easy to replace the former one.

MB15E05SR is ideally suited for the base station of GSM (Global System for Mobile Communications) and PCS.

s FEATURES

• High frequency operation: 2.0 GHz Max

°C, in locking state)

• Direct power saving function:Power supply current in power saving mode

Typ 0.1

(Continued)

s PACKAGES

16-pin plastic TSSOP

(FPT-16P-M07)

16-pad plastic BCC

(LCC-16P-M06)