ACS8944T datasheet(13/24 Pages) SEMTECH

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ADVANCED COMMUNICATIONS

FINAL

DATASHEET

Revision 3/November 2006 © Semtech Corp.

Page 13

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ACS8944 JAM PLL

Notes: (i) Unused differential input terminated to VDD-1.4 V.

(ii) Both pins must remain within the supply voltage, i.e. >VSS and <VDD.

Note: (i) With a 50 ohms load on each pin to VDD -2V.

Table 13 DC Characteristics: LVPECL Input Port

Parameter

Symbol

Minimum

Maximum

Units

LVPECL Input Offset Voltage

Differential Inputs (Note (ii))

VIO_LVPECL

VDD-2.0

VDD-0.5

Input Differential Voltage

VID_LVPECL

0.1

1.4

LVPECL Input Low Voltage

Single-ended Input (Note (i))

VIL_LVPECL_S

VSS

VDD-1.5

LVPECL Input High Voltage

Single-ended Input (Note (i))

VIL_LVPECL_S

VDD-1.3

VDD

Input High Current

Input Differential Voltage VID = 1.4 V

IIH_LVPECL

-10

+10

µA

Input Low Current

Input Differential Voltage VID = 1.4 V

IIL_LVPECL

-10

+10

µA

Table 14 DC Characteristics: LVPECL Output Port

Parameter

Symbol

Minimum

Maximum

Units

LVPECL Output Low Voltage (Note (i))

VOL_LVPECL

VDD-2.1

VDD-1.62

LVPECL Output High Voltage (Note (i))

VOH_LVPECL

VDD-1.45

VDD-0.88

LVPECL Output Differential Voltage (Note (i))

VOD_LVPECL

0.37

1.22

Table 15 DC Characteristics: LVTTL/CMOS Output Port

Parameter

Symbol

Minimum

Typical

Maximum

Units

Output Low Voltage @ IOL (MAX)

VOL

0.4

Output High Voltage @ IOH (MIN)

VOH

2.4

Low Level Output Current @ VOL = 0.4 V

IOL

High Level Output Current @ VOH = 2.4 V

IOH

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