DAVICOM DM9801E

DM9801E Product Brief
1M Home Phoneline Network Physical Layer Single Chip Transceiver
June 2008 Rev.1.0
The DM9801 is a physical-layer, single-chip, low-power transceiver for 1M Home
Phoneline Network applications. On the media side, it provides an interface to a
Home Phoneline wiring system. The reconciliation layer interfaces to the DM9801
either through an IEEE802.3u subset Media Independent Interface (MII) or a
pseudo-standard General Purpose Serial Interface (GPSI). A management interface is
provided by MDIO/MDC when operating in MII mode, or a Serial Peripheral
Interface bus when operating in GPSI mode.
The DM9801 uses a low-power and high-performance CMOS process. It contains the
entire physical layer functions of 1M as defined by Home Phoneline Network
Alliance, Rev. 1.1, including the Physical Coding
Sublayer, (RLL25) Encoder/Decoder (ENC/DEC), 4-wire HN Driver circuit and
receiver analog front end (AFE).
Patent-Pending Circuitry Includes:
An enhanced 4-wire Home Network transceiver circuit.
Block Diagram
RLL25
Encoder
GPSI - MII
Transmit
Muxed
GPSI
or Mii
Interface
Transmit
Timing
Generator
HN
Secondary
Driver
HNB+/-
HN
Primary
Driver
HNA+/-
Master
PHY
Controller
GPSI - MII
Receive
Interface
Select
RLL25
Decoder
Receiever
and
Digital PLL
Receiver
AFE
Specifications
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1M Home Phoneline Network physical-layer, single-chip transceiver
Supports the MII including the MDIO/MDC serial management interface
Supports the GPSI including a SPI serial management interface
Supports Link Integrity function
Smart equalizer circuit for 1M receiver
Supports Patent Pending 4-wire operation
Supports hardware or software speed select
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Supports Interrupt on change, eliminates management polling
Flexible built-in LED support for TX Activity, RX Activity and Collision
Indication or Activity, Link state and Collision
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Digital PLL circuit using advanced digital algorithm to reduce jitter
Low-power, high-performance CMOS process
Available in a small outline 100-pin LQFP
3.3V DC power with 5V DC tolerant I/O
Application
Home PNA VoIP CPE (ATA, IP Phone, Video Phone)
Home network IP STB, IPC, Internet Radio
Home PNA DVR, Router…
Ordering Information
Part Number
Pin Count
Package
DM9801E
100
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