參數(shù)資料
型號: Am7969-175LKC
廠商: Advanced Micro Devices, Inc.
英文描述: TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
中文描述: TAXIchip集成電路(透明異步Xmitter,接收器接口)
文件頁數(shù): 126/127頁
文件大?。?/td> 730K
代理商: AM7969-175LKC
AMD
122
TAXIchip Integrated Circuits Technical Manual
TAXI T
echnical
I
nformation
P
ublication
#89-Nov ’89
S ubjec t: T AX Ic hip Error Rate Example
INT RODUCT ION
A method was devised to establish a baseline TAXIchip set error rate. A series of tests
were conducted at a transmission rate of 125 MHz at room temperature, and various
power supply voltages. The data collected will be used to determine fiber optic and wire
interconnect BER (Bit Error Rate) tests to be completed at a later date.
MET HOD
The test method used the TAXI Transmitters and Receivers to transfer data continu-
ously for at least one thousand hours per pair with different V
CC
conditions. To imple-
ment this test, five TAXI K2 boards were used. Each board includes a TAXI Transmitter
with a ROM data source, and a Receiver with a ROM data checker to test data integrity
on every byte. They were set up according to the diagrams in Figure 20, and intercon-
nected with AC coupled short coax lines.
In Setup 1, a single power supply with 5 V V
CC
was attached to TAXI K2 board #1.
Board #1 ran independently with the SEROUT+/– connected to its SERIN+/– with 50
coaxial cables.
Setup 2 had oscillating voltages (4 V to 6 V) connected to the V
CC
of TAXI K2 boards #2
and #3. The SEROUT+/– of board #2 were connected to the SERIN+/– of board #3, and
the SEROUT+/– of board #3 connected to the SERIN+/– of board #2, with 50
coaxial
cables, forming two test setups with continually varying power supply voltages.
Setup 3 also uses two power supplies with one set at 4 V and the other at 6 V. These
two power supplies were connected to TAXI K2 boards #4 and #5. The SEROUT+/- and
SERIN+/- were connected in the same configuration as boards #2 and #3 in setup 2 with
50
coaxial cables.
The power supply voltages used (4 and 6 V) are outside the data sheet specification for
the TAXIchip set. This test was intended to stress the parts and to simulate extreme
temperature and operating conditions.
These five boards were checked regularly, and the error counts were recorded. To verify
that these boards were still running correctly, they were made to fail intentionally and
then reset.
RES ULT
The tests were completed after each board ran more than 1,000 hours. The table below
summarizes the results.
Board#
1
2
3
4
5
.
Hours
1,606
1,623
1,082
1,607
1,082
Errors
0
8*
0
2*
0
Notes
Errors occurred between 438–558 hours
Errors occurred between 438–558 hours
* One error can cause multiple error counts. These were assumed to be one error event.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM7969-175LMC 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
AM7969-175PC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Receiver
AM7969-175PCB 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Receiver
AM7969-70/B3A 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Receiver
AM7969-70/BXA 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Receiver