VSC8204 データシートの表示（PDF） - Vitesse Semiconductor

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VSC8204

Quad Port 10/100/1000BASE-T PHY with R/GMII, R/TBI Interfaces

Vitesse Semiconductor 

VSC8204

Quad Port 10/100/1000BASE-T PHY with R/GMII, R/TBI Interfaces

GENERAL DESCRIPTION:

The VSC8204 is a low power, low cost, quad port Gigabit Ethernet PHY. It is ideal for Gigabit Ethernet

Switch applications that require a GMII/MII, RGMII, TBI, or RTBI MAC / Switch interface. Vitesse’s

proprietary DSP technology yields robust performance and low power consumption, supporting

1000BASE-T over unshielded twisted pair (UTP) cable, with more than 5dB of design margin with respect

to all worst-case impairments (NEXT, FEXT, Echo, and system noise sources).

SPECIFICATIONS:

PARAMETER

PD

L1G, L100M

L10M

VDDIO

VDDDIG

FTOL (REFERENCE)

TYP

<1

>140

180

3.3

1.5

25

UNIT

W

m

m

V

V

MHz

COMMENTS

Steady state power consumption (1000BASE-T mode)

Cable link length supported in 1000BASE-T & 100BASE-TX

modes, over Category 5 cable

Cable link length supported in 10BASE-T mode, over

Category 3 cable

Digital I/O and Analog Core power supply voltage

Digital and Analog Core power supply voltage

Crystal parallel resonant frequency (+/- 100ppm tolerance)

BLOCK DIAGRAM:

TXD[7:0]_n

GTX_CLK_n

TX_ER_n

TX_EN_n

COL_n

CRS_n

RXD[7:0]_n

RX_CLK_n

RX_DV_n

RX_ER_n

MAC I/F

GMII

RGMII

TBI

RTBI

PCS

PCS

ENCODER

PAM-5 SYMBOL

MAPPER,

SCRAMBLER

PMA (DSP Data Pump)

TX FIR

NC1 NC2 NC3 EC

PCS

DECODER

PAM-5 SYMBOL

DE-MAPPER,

DESCRAMBLER

TRELLIS

DECODER

4

+

FFE

X4

TIMING RECOVERY

MDI (Analog Front End)

DAC

HYBRID

ADC

VGA

Port 3

Port 2

Port 1

Port 0

TXIP_A_n

TXVP_A_n

TXVN_A_n

TXIN_A_n

TXIP_B_n

TXVP_B_n

TXVN_B_n

TXIN_B_n

TXIP_C_n

TXVP_C_n

TXVN_C_n

TXIN_C_n

TXIP_D_n

TXVP_D_n

TXVN_D_n

TXIN_D_n

TDI

TDO

TMS

TCK

TRST#

PHYADD[4:2]

MDC

MDIO

MDINT#

MODE[1:0]_n

DUPLEX_n

RESET#

PWDN

TEST

MANAGER

SERIAL

MANAGEMENT

INTERFACE

AUTO-NEGOTIATION

MII REGISTERS

PLL

SERIAL LED

INTERFACE

BIASING &

REGULATION

PLLMODE

REFCLK

CLK125

LED_DATA

LED_CLK

REF_FILT

REF_REXT

REG_OUT

For more information on Vitesse Products visit the Vitesse web site

at www.vitesse.com or contact Vitesse Sales at (800) VITESSE

or sales@vitesse.com

Vitesse, ASIC-Friendly, FibreTimer, TimeStream and Snoop Loop are trademarks of Vitesse Semiconductor Corporation.

All other trademarks or registered trademarks mentioned herein are the property of their respective holders. Vitesse

Semiconductor Corporation ("Vitesse") retains the right to make changes to its products or specifications to improve

performance, reliability or manufacturability. All information in this document, including descriptions of features,

functions, performance, technical specifications and availability, is subject to change without notice at any time.

741 Calle Plano

Camarillo, CA 93012, USA

Tel: +1 805.388.3700

Fax: +1 805.987.5896

www.vitesse.com

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