MB15F74UL Datasheet | Fujitsu Semiconductor Limited

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 Bi CMOS process is used, as a result a supply current is typically 9.0 m A 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 m A and 6 m A 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% paring 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 m A 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) .. (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 m A/6.0 m A Typ - Dual modulus prescaler : 4000 MHz prescaler (64/65 or128/129) /2000 MHz prescaler (32/33 or 64/65) - 23 bit shift register - Serial input binary 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 - Built-in high-speed tuning, low-noise phase parator, current-switching type constant current circuit - On-chip phase control for phase parator - On-chip phase parator for fast lock and low noise - Built-in digital locking detector circuit to detect PLL locking and unlocking - Operating temperature : Ta =...