ML145170
Phase–Frequency Detector
PLL Frequency Synthesizer
with Serial Interface
Legacy Device:
Motorola/Freescale MC145170-2
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.
The device features fully programmable R and N counters, an amplifier
at the f in pin, on–chip support of an external crystal, a programmable ref-
erence output, and both single and double–ended phase detectors with
linear transfer functions (no dead zones). A configuration (C) register
allows the part to be configured to meet various applications. A patented
feature allows the C register to shut off unused outputs, thereby minimiz-
ing noise and interference.
In order to reduce lock times and prevent erroneous data from being
loaded into the counters, a patented jam load feature is included.
Whenever a new divide ratio is loaded into the N register, both the N and
R counters are jam–loaded with their respective values and begin count-
ing down together. The phase detectors are also initialized during the jam
load.
• 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
BitGrabber™ is a trademark of Motorola/Freescale
16
1
P DIP 16 = EP
PLASTIC PACKAGE
CASE 648
16
1
16
1
SO 16 = -5P
PLASTIC PACKAGE
CASE 751B
TSSOP 16 = -7P
PLASTIC PACKAGE
CASE 948C
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
P DIP 16
MC145170P2
ML145170EP
SO 16
MC145170D2
ML145170-5P
TSSOP 16
MC145170DT2 ML145170-7P
Note:
Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from
ML
to
MLE.
PIN CONNECTIONS
φ
φ
Page 1 of 26
www.lansdale.com
Issue A
LANSDALE [ LANSDALE SEMICONDUCTOR INC. ]
