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參數(shù)資料
| 型號(hào)： | CM3107-12SH |
| 廠商： | California Micro Devices Corporation |
| 英文描述： | 2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
| 中文描述： | 2安培源/ DDR內(nèi)存和前端總線接收器總線終端穩(wěn)壓器的應(yīng)用 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大小： | 1214K |
| 代理商： | CM3107-12SH |
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2004 California Micro Devices Corp. All rights reserved.
02/02/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
L
Tel: 408.263.3214
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Fax: 408.263.7846
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www.calmicro.com
1
CM3107
2 Amp Source/ Sink Bus Termination Regulator
for DDR Memory and Front Side Bus Applications
Features
Ideal for Intel 865 Front Side Bus V
TT
and DDR
V
TT
applications
Sinks and sources 2 Amps
Over current protection
Over temperature protection
Integrated power MOSFETs
Excellent accuracy (0.5% load regulation)
Selectable output (1.225V/1.45V or V
DDQ
/2)
8-lead SOIC and PSOP packages
Lead-free versions available
Applications
Intel 865/845 Front Side Bus termination
Single and dual DDR memory termination
Active termination buses
Graphics card DDR memory termination
Product Description
The CM3107 is a sinking and sourcing regulator specif-
ically designed for series-parallel bus termination for
high-speed chip set busses as well as DDR memory
systems. It can source and sink current up to 2.0A with
a load regulation of 0.5%. The V
TT
output voltage is
selectable by V
DDQ
SEL and FSBSEL pins. The
V
DDQ
SEL pin controls whether the CM3107 is in DDR
memory mode with V
TT
=V
DDQ
/2, or in FSB mode. In
FSB mode, FSBSEL controls whether V
TT
is 1.225V or
1.45V. This allows the same chip to be used in two dif-
ferent circuits on an Intel 865-based motherboard.
The CM3107 provides over current and over tempera-
ture protection, which protect the chip from excessive
heating due to high current and high temperature. A
shutdown capability using an external transistor
reduces power consumption and provides a high
impedance output.
The CM3107 is housed in 8-lead SOIC and PSOP
packages and is available with optional lead-free finish-
ing.
Simplified Electrical Schematic
V
REF
V
CC
GND
Over Current
Reference
V
SENSE
5
Over Temp
IN
OUT
Buffer
Output
Select
V
TT
Driver
5
V
DDQ
SEL FSBSEL
V
DDQ
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CM3108-000 | 制造商:TE Connectivity 功能描述:Heat Shrink Molded Boot 制造商:TE Connectivity 功能描述:222D232-25-02/225-0-CS8910 - Bulk |
| CM3108F10SL-3 | 制造商:EPIC 功能描述:CLAMP RIGHT ANGLE 10SL-3 |
| CM3108F10SL-3N | 制造商:EPIC 功能描述:CLAMP R/ANGLE 10SL-3N |
| CM3108F10SL-4 | 制造商:Lapp Group 功能描述:CLAMP R/ANGLE 10SL-4 |
| CM3108F20-A48 | 制造商:Lapp Group 功能描述:CLAMP R/ANGLE 20-A48 |
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