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PGA970EVM 收到板子后不能工作

一、 外观检验(Appearance Inspection)

 

The appearance shall be free from deformation,oxidation,contamination,crack and

 

mark as required.

 

 

 

 

 

 

 

 

 

 

二、 功能测试(Function Test)

 

2.1测试环境 Test Environment

 

Temperature and Humidity24.4℃/50.5%RH

 

Test Equipment:

 

Fluke 289C True RMS Multimeter

 

Test Method

 

  1. Check the Default PGA970EVM Jumper Configuration was Normal:

 

Jumpers

Options

Jumpers

Options

 

 

 

 

J16

Open

J2

1 and 2

 

 

 

 

J17

Open

J7

1 and 2

 

 

 

 

J18

Closed

J11

Closed

 

 

 

 

J1

Closed

J12

Closed

 

 

 

 

J4

Closed

J19

Closed

 

 

 

 

J6

Closed

J9

Closed

 

 

 

 

 

  1. Power ON The Multimeter and turn it to “Ω” Options

 

  1. Check the resistance like below:

Item

Normal Range

Test Value

 

 

 

Vdd and Gnd(TP21,TP24)

>100 ohm

27.7 ohm

 

 

 

C13

>100 ohm

25 ohm

 

 

 

Q3,2-4 and 3

Normal open

7.8 ohm

 

 

 

 

Table:1

 

Pass Condition:   The Normal resistance should be Like the table 1.

 

 

2.2    Test Capture:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Test Picture

 

 

 

 

 

 

VDD and   Gnd(Left)

 

Q3 Drain and Source

GND(Right)

 

 

 

 

 

 

三、 检验结果(Test Result):

 

 

After confirmation, the power supply of the product is abnormal and the

 

 

test result Fails.

 

四、 参考资料(Reference Data)

 

 

l  The PGA970EVM schematics:

 

 

 

 

 

 

 

 

 

 

Kailyn Chen:

您好,您的附图我这边都没有显示出来。
根据您的描述,就是发现EVM板的功能性测试不正常是吗? 您是在哪里订购的?

user5958013:

回复 Kailyn Chen:

电源不正常,总是失败的

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