Summary |  MB15F02SL |  MB15F03SL |  MB15F07SL |  MB15F08SL |  MB15F72UL |  MB15F73UL |   MB15F74UL |  MB15F76UL |  MB15F78UL |  MB15F72UV |  MB15F73UV |  MB15F74UV |

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General Description

The Fujitsu MB15F74UL is a serial input Phase Locked Loop (PLL) frequency synthesizer with a 4000MHz and a 2000MHz prescalers. A 64/65 or a 128/129 for the 4000MHz prescaler, and a 32/33 or a 64/65 for the 2000MHz prescaler can be selected for the prescaler that enables pulse swallow operation.

The latest BiCMOS process is used, as a result a supply current is typically 9.0mA typ. at 3.0V. The supply voltage range is from 2.7V to 3.6V. A refined charge pump supplies well-balanced output current with 1.5mA and 6mA selectable by serial data. The data format is same as MB15F72/3/8UL series. Fast locking is acheived for adopting the new circuit.

The new package(BCC20) decreases the mount area of MB15F74UL by more than 30% compared with the former BCC16(for dual PLL). MB15F74UL is ideally suited for wireless mobile communications, such as W-LAN.

Technical Features

• High frequency operation:
  
  • RF synthesizer: 4000MHz max
  • IF synthesizer: 2000MHz max
• Low power supply voltage: VCC = 2.7 to 3.6 V
• Ultra Low power supply current : ICC = 9.0 mA typ. (VCC = Vp=3.0V, Ta=25°C, SW=0 in RF, IF locking state)
• Direct power saving function: Power supply current in power saving mode
  Typ. 0.1 mA(Vcc=Vp=3.0V, Ta=25°C), Max. 10 mA(Vcc=Vp=3.0V)
• Dual modulus prescaler : 4000MHz prescaler(64/65 or 128/129) / 2000MHz prescaler(32/33 or 64/65)
• 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
• On-chip phase comparator for fast lock and low noise
• On-chip phase control for phase comparator
• Operating temperature: Ta = -40 to 85°C

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