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MC145220MOTOROLAN/a500avaiMC145220 Evaluation Board Manual
MC145220MOTN/a34avaiMC145220 Evaluation Board Manual
MC145220FMOTN/a2avaiDual 1.1 GHz PLL Frequency Synthesizer
MC145220FMOTOROLAN/a230avaiDual 1.1 GHz PLL Frequency Synthesizer


MC145220 ,MC145220 Evaluation Board ManualMaximum Ratings are those values beyond which damage to the device may occur.Functional operation s ..
MC145220 ,MC145220 Evaluation Board ManualBLOCK DIAGRAM8 32/33 ORffinV64/65 A AND N COUNTERS37f LDin PHASE/PRESCALERFREQUENCY 4TO MUX FORPD / ..
MC145220F ,Dual 1.1 GHz PLL Frequency SynthesizerMAXIMUM RATINGS* (Voltages Referenced to GND, unless otherwise stated)This device contains protecti ..
MC145220F ,Dual 1.1 GHz PLL Frequency Synthesizer**Order this documentby MC145220/DSEMICONDUCTOR TECHNICAL DATA ** **" ** ! **F SUFFIX*!"**SOG PAC ..
MC14522B ,Presettable 4-Bit Down Counters**SEMICONDUCTOR TECHNICAL DATA** * * * * **The MC14522B BCD counter and the MC14526B binary counte ..
MC14522B ,Presettable 4-Bit Down CountersMaximum Ratings are those values beyond which damage to the device may occur.†Temperature Derating: ..
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MC145220-MC145220F
MC145220 Evaluation Board Manual
" !BiCMOS
The MC145220 is a low–voltage, single–chip frequency synthesizer with
serial interface capable of direct usage up to 1.1 GHz. The device simulta-
neously supports two loops. The two on–chip dual–modulus prescalers may be
independently programmed to divide by either 32/33 or 64/65.
The device consists of two dual–modulus prescalers, two 6–stage A
counters, two 12–stage N counters, two fully programmable 13–stage R
(reference) counters, and two lock detectors. Four phase/frequency detectors
are included: two with current source/sink outputs and two with double–ended
outputs.
The counters are programmed via a synchronous serial port which is SPI
compatible. The serial port is byte–oriented to facilitate control via an MCU. Due
to the innovative BitGrabber Plus registers, the MC145220 may be cascaded
with other peripherals featuring BitGrabber Plus without requiring leading
dummy bits or multiple address bits in the serial data stream. In addition,
BitGrabber Plus peripherals may be cascaded with existing BitGrabber
peripherals. Because this device is a dual synthesizer, a single steering bit is
used in the serial data stream to direct the data to either side of the chip.
The phase/frequency detectors have linear transfer functions (no dead
zones). The current delivered by the current source/sink outputs is controllable
via the serial port.
Also featured are low–power standby for either one or both loops and
on–board support of an external crystal. In addition, the part may be configured
such that the REFin pin accepts an external reference signal. In this
configuration, the REFout pin may be programmed to output the REFin
frequency divided by 1, 2, 4, 8, or 16. Operating Frequency: 40 to 1100 MHz Operating Supply Voltage Range: 2.7 to 5.5 V Supply Current: Both PLLs Operating — 12 mA Nominal
One PLL Operating, One on Standby — 6.5 mA Nominal
Both PLLs on Standby — 30 μA Maximum Phase Detector Output Current: Up to 2 mA @ 5 V
Up to 1 mA @ 3 V Operating Temperature Range: – 40 to 85°C Independent R Counters Allow Use of Different Step Sizes for Each Loop Double–Buffered R Register — Reference and Loop Divide Ratios
Updated Simultaneously R Counter Division Range: 1 and 10 to 8,191 Dual–Modulus Capability Provides Total Division of the VCO Frequency up
to 262,143 Direct Interface to Motorola SPI Data Port Evaluation Kit Available (Part Number MC145220EVK) See Application Note AN1253/D for Low–Pass Filter Design, and
AN1277/D for Offset Reference PLLs for Fine Resolution or Fast Hopping
NOTE: This product has been evaluated for operation over a wider range than 40 MHz to 1.1 GHz. If your design requires a wider
frequency range, contact your local Motorola representative for further information.
BitGrabber and BitGrabber Plus are trademarks of Motorola, Inc.
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