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■DESCRIPTION

The Fujitsu MB15E05SL 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 2.4 V and 3.6 V. The MB15E05SL uses the latest BiCMOS process, as a result the supply current is typically 3.0 mA at 2.7 V. A refined charge pump supplies well-balanced output currents of 1.5 mA and 6 mA. The charge pump current is selectable by serial data. MB15E05SL is ideally suited for wireless mobile communications, such as GSM (Global System for Mobile Communications) and PCS.

■FEATURES

? High frequency operation: 2.0 GHz max

? Low power supply voltage: VCC= 2.4 to 3.6 V

? Ultra Low power supply current:ICC= 3.0 mA typ. (VCC= Vp = 2.7 V, Ta = +25°C, in locking state)

ICC= 3.5 mA typ. (VCC= Vp = 3.0 V, Ta = +25°C, in locking state)

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

Typ. 0.1 μA (VCC= Vp = 3.0 V, Ta = +25°C), Max. 10μA (VCC= Vp = 3.0 V)

? Dual modulus prescaler: 64/65 or 128/129

? 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

? Pin compatible with MB15E05, MB15E05L