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參數資料
| 型號： | CM3107 |
| 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內存和前端總線接收器總線終端穩壓器的應用 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 1214K |
| 代理商： | CM3107 |
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
L
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
相關PDF資料 |
PDF描述 |
|---|---|
| CM3107-00SB | 2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
| CM3107-00SH | 2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
| CM3107-00SM | 2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
| CM3107-00SN | 2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
| CM3107-12SH | 2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CM3107-000 | 制造商:TE Connectivity 功能描述:Heat Shrink Molded Boot 制造商:TE Connectivity 功能描述:222D221-25-13/225-0-CS8910 - Bulk |
| CM3107-00SB | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
| CM3107-00SH | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
| CM3107-00SM | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
| CM3107-00SN | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:2 Amp Source/ Sink Bus Termination Regulator for DDR Memory and Front Side Bus Applications |
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