DS04-21367-1E

FUJITSU SEMICONDUCTOR

DATA SHEET

ASSP

Dual Serial Input

PLL Frequency Synthesizer

MB15F72UL

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s DESCRIPTION

The Fujitsu MB15F72UL is a serial input Phase Locked Loop (PLL) frequency synthesizer with a 1300 MHz and

a 350 MHz prescalers. A 64/65 or a 128/129 for the 1300 MHz prescaler, and a 8/9 or a 16/17 for the 350 MHz

prescaler can be selected for the prescaler that enables pulse swallow operation.

The BiCMOS process is used, as a result a supply current is typically 2.5 mA at 2.7 V. The supply voltage range

is from 2.4 V to 3.6 V. A refined charge pump supplies well-balanced output current with 1.5 mA and 6 mA

selectable by serial data. The data format is the same as the previous one MB15F02SL, MB12F72SP. Fast locking

is achieved for adopting the new circuit.

The new package (BCC20) decreases a mount area of MB15F72UL more than 30

% comparing with the former

BCC16 (for dual PLL) .

MB15F72UL is ideally suited for wireless mobile communications, such as CDMA.

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s FEATURES

• High frequency operation : RF synthesizer : 1300 MHz Max.

: IF synthesizer : 350 MHz Max.

= 2.4 to 3.6 V

= 2.5 mA Typ.

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s PACKAGES

20-pin plastic TSSOP

20-pad plastic BCC

(FPT-20P-M06)

(LCC-20P-M05)