LMX2581E_15 datasheet(8/55 Pages) TI

No. de pieza	LMX2581E

Descripción Electrónicos	LMX2581E Wideband Frequency Synthesizer with Integrated VCO

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Fabricante Electrónico	TI [Texas Instruments]

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tCES

tCS

D27

D26

D25

D24

tCH

tCWH

tCWL

A3

A2

A1

A0

MSB

LSB

DATA

CLK

LE

tES

tEWH

D0

D23

LMX2581E

SNAS665 – MAY 2015

www.ti.com

Electrical Characteristics (continued)

(3.15 V

≤ Vcc ≤ 3.45 V, -40°C ≤ TA ≤ 85°C; except as specified. Typical values are at Vcc = 3.3 V, 25°C.)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

DIGITAL INTERFACE (DATA, CLK, LE, CE, MUXout, BUFEN, LD)

VIH

High-level input voltage

1.4

Vcc

V

VIL

Low level input voltage

0.4

V

IIH

High-level input current

VIH = 1.75 V

–5

5

µA

IIL

Low-level input current

VIL = 0 V

–5

5

µA

VOH

High-level output voltage

IOH = –500 µA

2

V

VOL

Low-Level output voltage

IOL = –500 µA

0

0.4

V

7.6 Timing Requirements, MICROWIRE Timing

See Figure 1

MIN

NOM

MAX

UNIT

tES

Clock-to-enable low time

35

ns

tCS

Data-to-clock set up time

10

ns

tCH

Data-to-clock hold time

10

ns

tCWH

Clock pulse width high

25

ns

tCWL

Clock pulse width low

25

ns

tCES

Enable-to-clock setup time

10

ns

tEWH

Enable pulse width high

10

ns

Figure 1. Serial Data Input Timing

8

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