MB15F74UL

www.DataSheet4U.com FUJITSU SEMICONDUCTOR DATA SHEET DS04-21374-1E ASSP Dual Serial Input PLL Frequency Synthesizer MB15F74UL s DESCRIPTION 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) . s FEATURES High frequency operation : RF synthesizer : 4000 MHz Max : IF synthesizer : 2000 MHz Max Low power supply voltage : VCC = 2.7 to 3.6 V Ultra low power supply current : ICC = 9.0 mA Typ (VCC = Vp = 3.0 V, Ta = +25 °C, SWIF = SWRF = 0 in IF/RF locking state) (Continued) s PACKAGE 20-pad plastic BCC (LCC-20P-M05) www.DataSheet4U.com MB15F74UL (Continued) Direct power saving function : Power supply current in power saving mode Typ 0.1 µA (VCC = Vp = 3.0 V, Ta = +25 °C) Max 10 µA (VCC = Vp = 3.0 V) Software selectable charge pump current : 1.5 mA/6.0 mA Typ ...