CDCE421 datasheet(14/30 Pages) TI

tên linh kiện	CDCE421

Giải thích chi tiết về linh kiện	Fully Integrated Wide-Range, Low-Jitter, Crystal-Oscillator Clock Generator

PDF	30 Pages

Scroll/Zoom	100%

nhà sản xuất	TI [Texas Instruments]

Trang chủ	http://www.ti.com

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CDCE421

SCAS842 – APRIL 2007

ELECTRICAL CHARACTERISTICS (continued)

recommended operating conditions for CDCE421 device

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

LVPECL OUTPUT MODE (see Figure 11)

fCLK

Output frequency

10.9

1175

MHz

VOH

LVPECL high-level output voltage

VCC – 1.2

VCC – 0.81

VOL

LVPECL low-level output voltage

VCC – 2.17

VCC – 1.36

|VOD|

LVPECL differential output voltage

407

1076

Output rise time

20% to 80% of VOUTpp

170

Output fall time

80% to 20% of VOUTpp

170

Duty cycle of the output waveform

45%

55%

Duty cycle exception

630 MHz to 650 MHz

43%

57%

LVCMOS INPUT

VIL,CMOS

Low-level CMOS input voltage

VCC = 3.3 V

0.3 VCC

VIH,CMOS

High-level CMOS input voltage

VCC = 3.3 V

0.7 VCC

IL,CMOS

Low- level CMOS input current

VCC = VCC max, VIL = 0 V

–200

µA

IH,CMOS

High-level CMOS input current

VCC = VCC min, VIH = 3.7 V

200

µA

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