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參數(shù)資料
| 型號： | UC5601J |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | SCSI Active Terminator |
| 中文描述： | 的SCSI主動終結(jié)者 |
| 文件頁數(shù)： | 4/6頁 |
| 文件大?。?/td> | 314K |
| 代理商： | UC5601J |
Typical SCSI Bus Configuration Using the UC5601
UC5601
A Look at the Response of a SCSI-2 Cable
Figure 1 shows a single line of a SCSI cable. The driver
is an open colletor type which when asserted pulls low,
and when negated the termination resistance serves as
the pull-up.
Figure 2 shows a worst case scenario of mid cable de-
assertion with a close proximity receiver. The voltage
V
STEP
is defined as:
V
STEP
= V
OL
+I
O
Z
0
Driver Output Low Voltage
Current from Receiving Terminator
Cable Characteristic Impedance
V
OL
=
I
O
Z
0
=
=
I
O
=
V
REG
V
OL
110
In the pursuit of higher data rates, sampling culd occur
during this step portion, therefore it is important to ensure
that the step is as high as possible to get the most noise
margin. For this reason the UC5601 is trimmed so that
the output current (I
O
) is as close as possible to the SCSI
max current spec of 22.4mA. The Termination impedance
is initially trimmed on the IC to 110 ohms typical, then the
regulator voltage is trimmed for the highest output cur-
rent to within 22.4mA.
Figure 1. A Single Line of a SCSI Cable
Figure 2. A Typical Response of a SCSI Cable
UDG-94062
UDG-94063
UDG-94061
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| UCC1808- | Low Power Current Mode Push-Pull PWM |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UC5601N | 功能描述:SCSI 接口集成電路 18Line 5V SE Term RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| UC5601NG4 | 功能描述:SCSI 接口集成電路 18Line 5V SE Term RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| UC5601QP | 功能描述:SCSI 接口集成電路 18line 5V SE RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
| UC5601QP/81020 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| UC5601QPTR | 功能描述:SCSI 接口集成電路 18Line 5V SE Term RoHS:否 制造商:Texas Instruments 工作電源電壓:2.7 V to 5.25 V 電源電流:13 mA 最大工作溫度:+ 70 C 最小工作溫度:0 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSOP-36 封裝:Tube |
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