
ETC
[Fujitsu]
DESCRIPTION
The Fujitsu MB15F76UV is a serial input Phase Locked Loop (PLL) frequency synthesizer with a 6000MHz and a 1500MHz prescalers. Both IF and RF PLL section have a 1/4 divider. And a 16/17 or a 32/33 for the 6000MHz prescaler, and a 4/5 or a 8/9 for the 1500MHz 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 8.5mA typ. at 3.0V. The supply voltage range is from 2.5V to 3.6V. A refined charge pump supplies well-balanced output current with 1.5mA and 6mA selectable by serial data. Fast locking is acheived for adopting the new circuit.
The new package(BCC18) decreases a mount area of MB15F76UV about 50% comparing with the former BCC20(for dual PLL).
MB15F76UV is ideally suited for wireless communications, such as W-LAN.
FEATURES
• Very small package: BCC18 (2.4*2.7*0.45mm)
• High frequency operation: RF synthesizer : 6000MHz max
IF synthesizer : 1500MHz max
• Low power supply voltage: VCC = 2.5 to 3.6 V
• Ultra Low power supply current : ICC = 8.5 mA typ. (VCC = 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 µA(Vcc=3.0V, Ta= 25°C), Max. 10 µA(Vcc=3.0V)
• Dual modulus prescaler : 6000MHz prescaler(16/17 or 32/33, and 1/4divider)
• 1500MHz prescaler(4/5 or 8/9, and 1/4divider)
• Serial input 14-bit programmable reference divider: R = 3 to 16,383
• Serial input programmable divider consisting of:
- Binary 5-bit swallow counter: 0 to 31
- Binary 13-bit programmable counter: 3 to 8191
• On-chip phase comparator for fast lock and low noise
• On-chip phase control for phase comparator
• Operating temperature: Ta = –40 to 85°C
• Sireal data format compatible with MB15F76UL