Fujitsu MB15F74UL Fiche De Données

ASSP

■

The Fujitsu MB15F74UL is a serial input Phase Locked Loop (PLL) frequency synthesizer with a 4000 MHz and
a 2000 MHz prescalers. A 64/65 or a 128/129 for the 4000 MHz prescaler, and a 32/33 or a 64/65 for the 
2000 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 9.0 mA at 3.0 V. The supply voltage range
is from 2.7 V to 3.6 V. A refined charge pump supplies well-balanced output current with 1.5 mA and 6 mA
selectable by serial date. The pin assignments are the same as MB15F78UL. Fast locking is achieved for adopting
the new circuit.

The new package (BCC20) decreases a mount area of MB15F74UL more than 30

%

 comparing with the former

BCC16 (for dual PLL) .

■

• High frequency operation

    : RF synthesizer : 4000 MHz Max

     : IF synthesizer : 2000 MHz Max

• Low power supply voltage

   : V

CC

 

=

 2.7 to 3.6 V

• Ultra low power supply current : I

CC

 

=

 9.0 mA Typ 

  (V

CC

 

=

 Vp 

=

 3.0 V, Ta 

=

 

+

25 

°

C, SW

IF

 

=

 SW

RF

 

=

 0 in IF/RF locking state) 

(Continued)

■

20-pad plastic BCC

 (LCC-20P-M05)