Datasheet > AD9578BCPZ

AD9578BCPZ

更新时间： 2022-02-26 12:14:43

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
44页	817K
描述
Dual PLL Precision Synthesizer

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AD9578BCPZ 数据手册

Data Sheet

AD9578

LOGICINPUTS ( , , OEREF, OE1, OE2, OE3, OE4)

CS PD1

Table 4.

Parameter

Min Typ Max

Unit Test Conditions/Comments

Specifications apply to the

LOGIC INPUTS ( in OTP

pin while in OTP programming mode

FUNCTION)

See V_PROGdefinition in Tabl e 1; OTP programming must be done

with V_DD= 3.3 V

Input Voltage (V_PROG

)

5.25 5.5

V_DD+ 2.5

Input Current

µs

Current consumed during OTP programming

Time required per bit programmed

Time to OTP Program

LOGIC INPUTS ( ,OEREF, OE1,

800

Numbers are valid for V_DD= 2.5 V and 3.3 V

PD1

OE2, OE3, OE4,

Input Voltage

High (V_IH)

)

2.2

Low (V_IL)

0.8

Input Current (I_INH, I_INL

)

µA

Input Capacitance (C_IN)

REFERENCE INPUTS (XO1, XO2, XO3,XO4)

Table 5.

Parameter

Min Typ Max

Unit

Test Conditions/Comments

REFERENCE INPUT DRIVEN BY

CRYSTAL RESONATOR

Crystal Resonator

Frequency Range

MHz

Ω

Fundamental mode, AT cut crystal

Crystal Motional Resistance

REFERENCE INPUT DRIVEN BY

A DIFFERENTIAL CLOCK

100

Guaranteed by design

This input is a source follower and must be either dc-coupled 1.8 V

LVCMO S on the XO2 or XO4 pin, or ac-coupled

Input Frequency Range

MHz

Assumes ac-coupled LVDS (494 mV p-p across the differential pair)

Minimum limit imposed for jitter performance

Input Slew Rate

Differential Input Voltage

Sensitivity

133

250

V/μs

Minimum voltage across pins required to ensure switching between

logic states; the instantaneous voltage on either pin must not

exceed the supply rails; can accommodate single-ended input by ac

grounding of complementary input

mV p-p

REFERENCE INPUT DRIVEN BY

A SINGLE-ENDED CLOCK

The XO2 pin (for PLL1) and XO4 pin (for PLL2) input accepts dc-

coupled 1.8 V LVCMOS

Input Frequency Range

MHz

V/μs

DC-coupled

Input Slew Rate

Single-Ended Input (XO2,

XO4 Pins Only)

Minimum limit imposed for jitter performance

Input Voltage

High (V_IH)

Low (V_IL)

1.48

0.98

Rev. B | Page 5 of 44

1 2 3 456 7 8...44

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