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參數(shù)資料
| 型號： | DS2120 |
| 英文描述： | Ultra3 LVD SCSI Terminator |
| 中文描述： | Ultra3 LVD SCSI端接器 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 334K |
| 代理商： | DS2120 |
DS2120
6 of 10
Table 1.
PIN DESCRIPTION
DS2120E 28-Pin TSSOP
PIN
NAME
DESCRIPTION
1
VREF
Regulator Output Voltage.
1.25V reference in LVD mode; must be
decoupled with a 4.7μF cap.
2–5, 7–12,
18–21, 23–26
RxP, RxN
Signal Termination.
Connect to SCSI bus signal lines.
6, 22
HS_GND
Heat Sink Ground.
Internally connected to the mounting pad. Should be
connected to ground.
Isolation.
When pulled high, terminating resistors and biasing current sources
are isolated from the SCSI bus.
Signal Ground.
Master/Slave.
Mode select for the noncontrolling terminator. When pulled
high (MSTR), the DIFFSENS driver is enabled.
13
ISO
14
GND
15
MSTR/SLV
16
DIFFSENSE
DIFFSENSE.
Output to drive the SCSI bus DIFFSENS line.
17
DIFF_CAP
DIFFSENSE Capacitor.
Connect a 0.1
μ
F capacitor for DIFFSENSE filter.
Input to detect the type of device (differential or single-ended) on the SCSI
bus.
Termination Power.
Connect to the SCSI TERMPWR line and decouple with
2.2
μ
F capacitor.
27, 28
TPWR
DS2120B 36-Pin SSOP
PIN
NAME
DESCRIPTION
1
VREF
Regulator Output Voltage.
1.25V reference in LVD mode; must be
decoupled with a 4.7μF cap.
No Connect.
Do not connect pins.
2, 3, 33, 35
4–7, 11–16,
22–25, 29–32
NC
RxP, RxN
Signal Termination.
Connect to SCSI bus signal lines.
8–10, 26–28
HS_GND
Heat Sink Ground.
Internally connected to the mounting pad. Should be
connected to ground.
Isolation.
When pulled high, terminating resistors and biasing current sources
are isolated from the SCSI bus.
17
ISO
18
GND
Signal Ground.
19
MSTR/SLV
Master/Slave.
Mode select for the noncontrolling terminator. When pulled
high (MSTR), the DIFFSENS driver is enabled.
DIFFSENSE.
Output to drive the SCSI bus DIFFSENS line.
DIFFSENSE Capacitor.
Connect a 0.1
μ
F capacitor for DIFFSENSE filter.
Input to detect the type of device (differential or single ended) on the SCSI
bus.
Low-Voltage Differential.
Output of DIFFSENSE receiver; output high
indicates LVD bus operation .
Termination Power.
Connect to the SCSI TERMPWR line and decouple with
2.2
μ
F capacitor.
20
DIFFSENSE
21
DIFF_CAP
34
LVD
36
TPWR
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS2120B | Ultra3 LVD SCSI Terminator |
| DS2120E | Ultra3 LVD SCSI Terminator |
| DS21372 | 3.3V Bit Error Rate Tester BERT |
| DS21372T | 3.3V Bit Error Rate Tester BERT |
| DS21372TN | 3.3V Bit Error Rate Tester BERT |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2120B | 功能描述:SCSI 接口集成電路 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 |
| DS2120B/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| DS2120B/T&R | 功能描述:SCSI 接口集成電路 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 |
| DS2120E | 功能描述:SCSI 接口集成電路 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 |
| DS2120E/T&R | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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