LMX1501AM datasheet(1/22 Pages) NSC

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TLW12340

November 1995

LMX1501ALMX1511 PLLatinum

TM

11 GHz Frequency Synthesizer

for RF Personal Communications

General Description

The LMX1501A and the LMX1511 are high performance fre-

quency synthesizers with integrated prescalers designed for

RF operation up to 11 GHz They are fabricated using Na-

tional’s ABiC IV BiCMOS process

The LMX1501A and the LMX1511 contain dual modulus

prescalers which can select either a 6465 or a 128129

divide ratio at input frequencies of up to 11 GHz Using a

proprietary digital phase locked loop technique

the

LMX1501A11’s linear phase detector characteristics can

generate very stable low noise local oscillator signals

Serial data is transferred into the LMX1501A and the

LMX1511 via a three line MICROWIRETM interface (Data

Enable Clock) Supply voltage can range from 27V to 55V

The LMX1501A and the LMX1511 feature very low current

consumption typically 6 mA at 3V

The LMX1501A is available in a JEDEC 16-pin surface

mount plastic package The LMX1511 is available in a

TSSOP 20-pin surface mount plastic package

Features

Y

RF operation up to 11 GHz

Y

27V to 55V operation

Y

Low current consumption

ICC e 6 mA (typ) at VCC e 3V

Y

Dual modulus prescaler 6465 or 128129

Y

Internal balanced low leakage charge pump

Y

Small-outline

plastic

surface mount JEDEC

0150

wide (1501A) or TSSOP 0173

wide (1511) package

Applications

Y

Cellular telephone systems

(AMPS NMT ETACS)

Y

Portable wireless communications

(PCSPCN Cordless)

Y

Advanced cordless telephone systems

(CT-1CT-1a CT-2 ISM902-928)

Y

Other wireless communication systems

Block Diagram

TLW12340 – 1

TRI-STATE

is a registered trademark of National Semiconductor Corporation

MICROWIRETM and PLLatinumTM are trademarks of National Semiconductor Corporation

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A

Số phần tương tự - LMX1501AM

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nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
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	LMX2314	371Kb / 20P	1.2 GHz Frequency Synthesizer for RF Personal Communications
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