MB15F78SP Datasheet, PDF (1/27 Pages) Fujitsu Component Limited. – Dual Serial Input PLL Frequency Synthesizer

FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-21364-3E
ASSP
Dual Serial Input
PLL Frequency Synthesizer
MB15F78SP
s DESCRIPTION
The Fujitsu MB15F78SP is a serial input Phase Locked Loop (PLL) frequency synthesizer with a 2550 MHz pres-
caler and a 1200 MHz prescaler. A 32/33 or a 64/65 for the 2550 MHz prescaler, and a 16/17 or a 32/33 for the 1200
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 5.5 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 select-
able by serial data.
The new package (BCC20) decreases an area of MB15F78SP more than 30 % comparing with the former BCC16
(for dual PLL).
MB15F78SP is ideally suited for wireless mobile communications, such as GSM.
s FEATURES
• High frequency operatio
: RX synthesizer : 2550 MHz max
: TX synthesizer : 1200 MHz max
• Low power supply voltage
: VCC = 2.4 to 3.6 V
• Ultra Low power supply current : ICC = 5.5 mA typ.
(VCC = Vp = 2.7 V, Ta = +25°C, SWTX = SWRX = 0, in TX/RX locking state)
• Direct power saving function : Power supply current in power saving mode
Typ. 0.1 µA (VCC = Vp = 2.7 V, Ta = +25°C), Max. 10 µA (VCC = Vp = 2.7 V)
• Software selectable charge pump current: 1.5 mA/6.0 mA typ.
s PACKAGES
(Continued)
20-pin plastic TSSOP
20-pad plastic BCC
(FPT-20P-M06)
(LCC-20P-M04)