FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-21362-2E
ASSP
Dual Serial Input
PLL Frequency Synthesizer
MB15F08SL
s
DESCRIPTION
The Fujitsu MB15F08SL is a serial input Phase Locked Loop (PLL) frequency synthesizer with a 2500 MHz and a
1100 MHz prescalers. The 2500 MHz prescaler, and 1100 MHz prescaler have a dual modulus division ratio of 32/
33 or 64/65 and 16/17 or 32/33 enabling pulse swallow operation.
The supply voltage range is between 2.4 V and 3.6 V.
The MB15F08SL uses the latest BiCMOS process. As a result, the supply current is typically 7.0 mA at 2.7 V. A
refined charge pump supplies a well-balanced output current of 1.5 mA or 6 mA. The charge pump current is selectable
by serial data.
MB15F08SL is ideally suited for wireless mobile communications.
s
FEATURES
• High frequency operation: RX synthesizer: 2500 MHz max
TX synthesizer: 1100 MHz max
• Low power supply voltage: V
CC
= 2.4 to 3.6 V
• Ultra Low power supply current: I
CC
= 7.0 mA typ. (V
CC
= 2.7 V, Ta = +25°C, in TX, RX locking state)
I
CC
= 7.5 mA typ. (V
CC
= 3.0 V, Ta = +25°C, in TX, RX locking state)
• Direct power saving function: Power supply current in power saving mode
Typ. 0.1
µA
(V
CC
= 3V, Ta = +25°C), Max. 10
µA
(V
CC
= 3V)
• Dual modulus prescaler: 2500 MHz prescaler (32/33 or 64/65)/1100 MHz prescaler (16/17 or 32/33)
• Serial input 14-bit programmable reference divider: R = 3 to 16,383
• Serial input programmable divider consisting of:
- Binary 7-bit swallow counter: 0 to 127
- Binary 11-bit programmable counter: 3 to 2,047
• Software selectable charge pump current
• On–chip phase control for phase comparator
• Operating temperature: Ta = –40 to +85°C
s
PACKAGES
16-pin, Plastic SSOP
16-pad, Plastic BCC
(FPT-16P-M05)
(LCC-16P-M04)
1
FUJITSU [ FUJITSU COMPONENT LIMITED. ]
