MB1511

FUJITSU SEMICONDUCTOR DATA SHEET DS04-21309-2E ASSP Serial Input PLL Frequency Synthesizer MB1511 s DESCRIPTION The Fujitsu MB1511 is a single chip serial input PLL frequency synthesizer designed for VHF tuner and cellular telephone applications. It contains a 1.1 GHz dual modulus prescaler which enables pulse swallow function, and an analog switch to speed up lock up time. It operates supply voltage of 3.0 V typ. and dissipates 7 mA typ. of current realized through the use of Fujitsu's unique U-ESBIC Bi-CMOS technology. The MB1511 is housed in SSOP package, this enables high integration. s FEATURES Low power supply voltage: VCC = 2.7 to 5.5 V High operating frequency: fIN MAX = 1.1 GHz (VIN MIN = –10dBm) Pulse swallow function: 64/65 or 128/129 Low supply current: ICC = 7 mA typ. Serial input 18-bit programmable divider consisting of: Binary 7-bit swallow counter: 0 to 127 Binary 11-bit programmable counter: 16 to 2047 Serial input 15-bit programmable reference divider consisting of: Binary 14-bit programmable reference counter: 8 to 16383 1-bit switch counter (SW) sets divide ratio of prescaler (Continued) s PACKAGE 20 pin, Plastic SSOP (FPT-20P-M03) 1 MB1511 (Continued) On-chip analog switch achieves fast lock up time 2 types of phase detector output On-chip charge pump (Bipolar type) Output for external charge pump Wide operating temperature: –40°C to +85°C 20-pin Plastic Shrink Small Outline Package (Suffix: –PFV) s PIN ASSIGNMENT (TOP V...