
LANSDALE Semiconductor Inc.
The Lansdale ML145170 is a single–chip synthesizer capable of direct usage in the MF, HF and VHF bands. A special architecture makes this PLL easy to program. Either a bit– or byte–oriented format may be used. Due to the patented BitGrabber™ registers, no address/steering bits are required for random access of the three registers. Thus, tuning can be accomplished via a 2–byte serial transfer to the 16-bit N register.
• Operating Voltage Range: 2.7 to 5.5 V
• Operating Temperature Range: TA = –40º to +85º C
• Maximum Operating Frequency:
185 MHz @ Vin = 500 mVpp, 4.5 V Minimum Supply
100 MHz @ Vin = 500 mVpp, 3.0 V Minimum Supply
• Operating Supply Current:
0.6 mA @ 3.0 V, 30 MHz
1.5 mA @ 3.0 V, 100 MHz
3.0 mA @ 5.0 V, 50 MHz
5.8 mA @ 5.0 V, 185 MHz
• R Counter Division Range: 1 and 5 to 32,767
• N Counter Division Range: 40 to 65,535
• Direct Interface to Motorola SPI Serial Data Port
• See Application Notes AN1207/D and AN1671/D
• See web site www.lansdale.com for ML145170 control software