GENERAL DESCRIPTION

The EVAL-ADN4620EBZ and EVAL-ADN4621EBZ allow quick and

easy evaluation of the ADN4620/ADN4621 low voltage differential

signaling (LVDS) isolators without the need for external components.

The ADN4620/ADN4621 employ the Analog Devices, Inc.,

iCoupler? technology to combine a 2-channel isolator with LVDS

receivers and drivers into a single, 20-lead SSOP package. The

ADN4620/ADN4621 are capable of running at data rates of up to

2.5 Gbps with low jitter.

The EVAL-ADN4620EBZ/EVAL-ADN4621EBZ have separate

ground and power planes for each side of the isolator, with individual

1.8 V power supplies required on each side of the ADN4620/

ADN4621. This separation enables the evaluation of the ADN4620/

ADN4621 with galvanic isolation between both sides of the devices.

An additional power supply providing 3.3 V is required on Side 1

(and also Side 2 for the ADN4621).

For full details on the ADN4620/ADN4621, see the ADN4620/

ADN4621 data sheet, which must be consulted in conjunction

with this user guide when using the EVAL-ADN4620EBZ or EVALADN4621EBZ.

FEATURES

? Isolated ground planes (logic side and bus side)

? High speed layout supports 2.5 Gigabit operation and precision jitter measurements

(<1 ps rms for random jitter)

? Convenient connections through SMA terminals

? 1.8 V power on Side 1 (VDD1) and Side 2 (VDD2)

? 3.3 V power for LVDS receivers on Side 1 (VIO1) and Side 2(VIO2, used with ADN4621 only)

? Ground on Side 1 (GND1) and ground on Side 2 (GND2)

? Side 1 LVDS signals: DIN1+, DIN1?, DIN2+ or DOUT2+, DIN2? orDOUT2?

? Side 2 LVDS signals: DOUT1+, DOUT1?, DOUT2+ or DIN2+,DOUT2? or DIN2?

? Jumper-selectable refresh mode

? Termination resistors on all LVDS receivers

EVALUATION KIT CONTENTS

? EVAL-ADN4620EBZ or EVAL-ADN4621EBZ

DOCUMENTS NEEDED

? ADN4620/ADN4621 data sheet

EQUIPMENT NEEDED

? Signal generator

? Oscilloscope

? Power supply