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6090 Datasheet(PDF) 1 Page - ON Semiconductor |
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6090 Datasheet(HTML) 1 Page - ON Semiconductor |
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1 / 22 page  © Semiconductor Components Industries, LLC, 2003 April, 2003 - Rev. 1 1 Publication Order Number: ECLLQFP32EVB/D ECLLQFP32EVB Evaluation Board Manual for High Frequency LQFP32 INTRODUCTION ON Semiconductor has developed an evaluation board for the devices in 32-lead LQFP package. These evaluation boards are offered as a convenience for the customers interested in performing their own engineering assessment on the general performance of the 32-lead LQFP device samples. The board provides a high bandwidth 50 W controlled impedance environment. Figures 1 and 2 show the top and bottom view of the evaluation board, which can be configured in several different ways, depending on device under test (see Table 1. Configuration List). This evaluation board manual contains: • Information on 32-lead LQFP Evaluation Board • Assembly Instructions • Appropriate Lab Setup • Bill of Materials This manual should be used in conjunction with the device data sheet, which contains full technical details on the device specifications and operation. Board Lay-Up The 32-lead LQFP evaluation board is implemented in four layers with split (dual) power supplies (see Figure 3. Evaluation Board Lay-Up). For standard ECL lab setup and test, a split (dual) power supply is essential to enable the 50 W internal impedance in the oscilloscope as a termination for ECL devices. The first layer or primary trace layer is 0.008 ″ thick Rogers RO4003 material, which is designed to have equal electrical length on all signal traces from the device under the test (DUT) to the sense output. The second layer is the 1.0 oz copper ground. The FR4 dielectric material is placed between second and third layer and between third and fourth layer. The third layer is the power plane (VCC & VEE) and a portion of this layer is a ground plane. The fourth layer is the secondary trace layer. Figure 1. Top View of the 32-lead LQFP Evaluation Board EVALUATION BOARD MANUAL http://onsemi.com |
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