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MC145190DT bảng dữ liệu(PDF) 1 Page - Motorola, Inc |
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MC145190DT bảng dữ liệu(HTML) 1 Page - Motorola, Inc |
1 / 24 page MC145190 •MC145191 MOTOROLA 1 1.1 GHz PLL Frequency Synthesizers Include On–Board 64/65 Prescalers 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 BitGrabber is a trademark of Motorola Inc. MICROWIRE is a trademark of National Semiconductor Corp. Order this document by MC145190/D MOTOROLA SEMICONDUCTOR TECHNICAL DATA fin TEST 2 OUTPUT B OUTPUT A CLK 12 13 14 15 16 11 10 Din REFin VCC ENB 8 7 6 5 4 3 2 1 TEST 1 Rx GND PDout φV φR LD REFout 9 18 19 20 17 PIN ASSIGNMENT VPD fin VDD MC145190 MC145191 F SUFFIX SOG PACKAGE CASE 751J ORDERING INFORMATION MC145190F SOG Package MC145191F SOG Package MC145190DT TSSOP MC145191DT TSSOP 20 1 DT SUFFIX TSSOP CASE 948D 20 1 © Motorola, Inc. 1998 REV 5 1/98 TN98012300 |
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Mô tả tương tự - MC145190DT |
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