MC145170-1 Datasheet, PDF (1/27 Pages) Motorola, Inc – PLL Frequency Synthesizer with Serial Interface CMOS

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
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by MC145170–1/D
MC145170-1
Advance Information
PLL Frequency Synthesizer
with Serial Interface
CMOS
The new MC145170–1 is pin–for–pin compatible with the MC145170. A
comparison of the two parts is shown in the table below. The MC145170–1 is
recommended for new designs.
The MC145170–1 is a single–chip synthesizer capable of direct usage in the
MF, HF, and VHF bands. A special architecture makes this PLL the easiest to
program in the industry. 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
fin pin, on–chip support of an external crystal, a programmable reference
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 minimizing 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 counting down together. The
phase detectors are also initialized during the jam load.
• Operating Voltage Range: 2.5 to 5.5 V
• Maximum Operating Frequency:
185 MHz @ Vin = 500 mV p–p, 4.5 V Minimum Supply
100 MHz @ Vin = 500 mV p–p, 3.0 V Minimum Supply
• Operating Supply Current: 0.6 mA @ 3 V, 30 MHz
1.5 mA @ 3 V, 100 MHz
3.0 mA @ 5 V, 50 MHz
5.8 mA @ 5 V, 185 MHz
• Operating Temperature Range: – 40 to 85°C
• R Counter Division Range: 1 and 5 to 32,767
• N Counter Division Range: 40 to 65,535
• Direct Interface to Motorola SPI and National MICROWIRE™ Serial Data
Ports
• Chip Complexity: 4800 FETs or 1200 Equivalent Gates
• See Application Note AN1207/D
COMPARISION OF THE PLL FREQUENCY SYNTHESIZERS
Parameter
MC145170–1
Technology
1.2 µm CMOS
Maximum Frequency with 5 V ± 10% Supply, fin
Maximum Frequency with 5 V ± 10% Supply, OSCin
185 MHz
25 MHz
Maximum Supply Voltage
5.5 V
Maximum Input Capacitance, fin
7 pF
MC145170
1.5 µm CMOS
160 MHz
20 MHz
6.0 V
5 pF
16
1
16
1
P SUFFIX
PLASTIC DIP
CASE 648
D SUFFIX
SOG PACKAGE
CASE 751B
16
1
DT SUFFIX
TSSOP
CASE 948C
ORDERING INFORMATION
MC145170P1 Plastic DIP
MC145170D1 SOG Package
MC145170DT1 TSSOP
PIN ASSIGNMENT
OSCin 1
OSCout 2
REFout ₃
fin ₄
Din ₅
ENB 6
CLK ₇
Dout 8
16 VDD
15 φ_V
14 φ_R
13 ^PDout
12 VSS
11 LD
10 fV
9 fR
This document contains information on a new product. Specifications and information herein are subject to change without notice.
BitGrabber is a trademark of Motorola Inc. MICROWIRE is a trademark of National Semiconductor Corp.
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MC145170–1
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