DM9331AE [DAVICOM]
100 Mbps Twisted Pair/Fiber Ethernet Media Converter Chip; 百兆双绞线/光纤以太网媒体转换芯片
| 型号： | DM9331AE |
| 厂家： | 
DAVICOM SEMICONDUCTOR, INC. |
| 描述： | 100 Mbps Twisted Pair/Fiber Ethernet Media Converter Chip |
| 文件： | 总2页 (文件大小：70K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DM9331AE Product Brief
100 Mbps Twisted Pair/Fiber Ethernet Media Converter Chip
June 2008 Rev.1.0
The DM9331A is a physical-layer, single-chip, low power transceiver for media
converter application. On the media side, it provides a direct interface either to
Unshielded Twisted Pair Category 5 Cable 5 (UTP5) for 100BASE-TX Fast Ethernet,
and it also provides PECL interface to connect the external fiber optical transceiver.
Through the Media Converter Interface (MCI), the DM9331A connects to another
DM9331A for the twisted pair to the fiber media converter, or fiber to fiber repeater.
The DM9331A uses a low-power and high-performance CMOS process. It contains
the entire physical layer functions of 100BASE-TX as defined by IEEE802.3u,
including the Physical Coding Sublayer (PCS), Physical Medium Attachment (PMA),
Twisted Pair Physical Medium Dependent Sublayer (TP-PMD) and a PECL compliant
interface for a fiber optical module, compliant with ANSI X3.166. The DM9331A
provides a strong support for the auto-negotiation function, utilizing automatic
selection of full or half-duplex mode. Furthermore, due to the built-in wave-shaping
filter, the DM9331A needs no external filter to transport signals to the media on the
100base-TX Ethernet operation.
Block Diagram
100Base-FX
PECL
Interface
100Base-
TX
PCS
Media
Converter
Interface
100Base-TX
Transceiver
Auto-Negotiation
TX/RX Module
LED Driver
Clock
Circuit
Block
Biasing/
Power
Block
MII
MII
Register
Management
Control
Specifications
100Base-TX to 100Base-FX media converter application chip set
100Base-FX to 100Base-FX repeater application chip set under full duplex mode
100Base-TX to 100Base-TX repeater application chip set under full duplex mode
Optional Fault propagation on no link condition.
Fully compliant with IEEE 802.3u 100Base-TX/FX
Compliant with ANSI X3T12 TP-PMD 1995 standard
Supports Auto-Negotiation function to 100 Mbps full/half duplex, compliant with
IEEE 802.3u
Remote fault detection capability
Far end fault signaling option in FX mode
Selectable twisted-pair or fiber mode output
Selectable full-duplex or half-duplex operation
Provides Loopback mode for easy system diagnostics
LED status outputs indicate Link/Activity, Full/Half-duplex and Fault LED
Single Low-Power Supply of 3.3V with 0.35µm CMOS technology
Very Low Power consumption modes:
Power Reduced mode (cable detection)
Power Down mode
Selectable TX drivers for 1:1 or 1.25:1 transformers for additional power
reduction
Compatible with 3.3V and 5.0V tolerant I/Os
48-pin LQFP small package (1x1 cm)
Application
1-to-1 100M Fiber converter
Fiber IP STB, IPC, Internet Radio
Fiber DVR, Router…
Ordering Information
Part Number
Pin Count
Package
DM9331AE
48
LQFP
DAVICOM Semiconductor, Inc.
No.6, Li-Hsin Rd.VI, Science Park, Hsin-Chu, Taiwan, R.O.C.
TEL: 886-3-5798797
FAX: 886-3-5646929
E-mail: sales@davicom.com.tw
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