MC145190 Datasheet, PDF (1/24 Pages) Motorola, Inc – 1.1GHz PLL Frequency Synthesizers

MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MC145190/D
1.1 GHz PLL Frequency
Synthesizers
Include On–Board 64/65 Prescalers
MC145190
MC145191
The MC145190 and MC145191 are single–package synthesizers with serial
interfaces capable of direct usage up to 1.1 GHz. A special architecture makes
these PLLs very easy to program because a byte–oriented format is utilized.
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 3–byte serial transfer to the 24–bit A register. The interface
is both SPI and MICROWIRE™ compatible.
Each device features a single–ended current source/sink phase detector
output and a double–ended phase detector output. Both phase detectors have
linear transfer functions (no dead zones). The maximum current of the
single–ended phase detector output is determined by an external resistor tied
from the Rx pin to ground. This current can be varied via the serial port.
The MC145190 features logic–level converters and high–voltage phase/
frequency detectors; the detector supply may range up to 9.5 V. The
MC145191 has lower–voltage phase/frequency detectors optimized for
single–supply systems of 5 V ± 10%.
Each part includes a differential RF input which may be operated in a
single–ended mode. Also featured are on–board support of an external crystal
and a programmable reference output. The R, A, and N counters are fully
programmable. The C register (configuration register) allows the parts to be
configured to meet various applications. A patented feature allows the C
register to shut off unused outputs, thereby minimizing system noise and
interference.
In order to have consistent lock times and prevent erroneous data from being
loaded into the counters, on–board circuitry synchronizes the update of the A
register if the A or N counters are loading. Similarly, an update of the R register
is synchronized if the R counter is loading.
The double–buffered R register allows new divide ratios to be presented to
the three counters (R, A, and N) simultaneously.
• Maximum Operating Frequency: 1100 MHz @ Vin = 200 mV p–p
• Operating Supply Current: 7 mA Nominal
• Operating Supply Voltage Range (VDD and VCC Pins): 4.5 to 5.5 V
• Operating Supply Voltage Range of Phase Detectors (VPD Pin) —
MC145190: 8.0 to 9.5 V
MC145191: 4.5 to 5.5 V
• Current Source/Sink Phase Detector OUTPUT Capability: 2 mA Maximum
• Gain of Current Source/Sink Phase/Frequency Detector Controllable via
Serial Port
• Operating Temperature Range: – 40 to + 85°C
• R Counter Division Range: (1 and) 5 to 8191
• Dual–Modulus Capability Provides Total Division up to 262,143
• High–Speed Serial Interface: 4 Mbps
• OUTPUT A Pin, When Configured as Data Out, Permits Cascading of Devices
• Two General–Purpose Digital Outputs — OUTPUT A: Totem–Pole (Push–Pull)
OUTPUT B: Open–Drain
• Patented Power–Saving Standby Feature with Orderly Recovery for
Minimizing Lock Times, Standby Current: 30 µA
• Evaluation Kit Available (Part Numbers MC145190EVK and MC145191EVK)
• See Application Note AN1253/D for Low–Pass Filter Design, and
AN1277/D for Offset Reference PLLs for Fine Resolution or Fast Hopping
20
1
F SUFFIX
SOG PACKAGE
CASE 751J
20
1
DT SUFFIX
TSSOP
CASE 948D
ORDERING INFORMATION
MC145190F SOG Package
MC145191F SOG Package
MC145190DT TSSOP
MC145191DT TSSOP
PIN ASSIGNMENT
REFout 1
LD 2
φ_{R 3}
φ_{V 4}
VPD 5
PDout 6
GND ₇
Rx 8
TEST 1 9
fin 10
20 REFin
19 Din
18 CLK
17 ENB
16 OUTPUT A
15 OUTPUT B
14 VDD
13 TEST 2
12 VCC
11 _fin
BitGrabber is a trademark of Motorola Inc. MICROWIRE is a trademark of National Semiconductor Corp.
REV 5
1/98 TN98012300
©_MOMo_Tto_Oro_Rla,_OIn_Lc._A1998
MC145190•MC145191
1