PI6LC4830 datasheet(7/11 Pages) PERICOM

7 / 11 page

PI6LC4830 Rev B

08/17/12

PI6LC4830

HiFlexTM Network Clock Generator

HCSL output buffer characteristics

Figure 9. Simplified diagram of current-mode output buffer

IOUT

0.90V

Slope ~ 1/Rs

ROS

VOUT = 0.90V max

Iout

VDD

HCSL Buffer characteristics

Symbol

Minimum

Maximum

3000Ω

N/A

ROS

unspecified

VOUT

N/A

900mV

Current Accuracy (IREF pin)

Symbol Conditions

Configuration

Load

Min.

Max.

IOUT

VDD = 3.30 ±5%

RREF = 475Ω 1%

IREF = 2.32mA

Nominal test load for given

configuration

-12% INOMINAL

+12% INOMINAL

Note:

INOMINAL refers to the expected current based on the configuration of the device.

Differential Clock Output Current

Board Target Trace/Term Z

Reference R, Iref = VDD/(3xRr) Output Current VOH @ Z

100Ω

(100Ω differential ≈ 15% coupling ratio)

RREF = 475Ω 1%,

IREF = 2.32mA

IOH = 6 x IREF

0.7V @ 50

Recommended Crystal Specification

Pericom recommends:

a) GC2500003 XTAL 49S/SMD(4.0 mm), 25M, CL=18pF, +/-30ppm, http://www.pericom.com/pdf/datasheets/se/GC_GF.pdf

b) FY2500081, SMD 5x3.2(4P), 25M, CL=18pF, +/-30ppm, http://www.pericom.com/pdf/datasheets/se/FY_F9.pdf

c) FL2500047, SMD 3.2x2.5(4P), 25M, CL=18pF, +/-20ppm, http://www.pericom.com/pdf/datasheets/se/FL.pdf

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