Datasheet > 78Q2120C-64CGT/F

78Q2120C-64CGT/F

更新时间： 2024-09-18 14:47:11

品牌	Logo	应用领域
东电化 - TDK		以太网：16GBASE-T 电信电信集成电路
页数	文件大小	规格书
33页	286K
描述
Ethernet Transceiver, CMOS, PQFP64, LEAD FREE, PLASTIC, LQFP-64

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中文翻译

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数据手册

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78Q2120C-64CGT/F 数据手册

78Q2120C

10/100BASE-TX Transceiver

August 2003

DESCRIPTION

FEATURES

The 78Q2120C is a 10BASE-T/100BASE-TX Fast

Ethernet transceiver. It includes integrated MII,

ENDECs, scrambler/descrambler, dual-speed clock

recovery, and full-featured auto-negotiation function.

The transmitter includes an on-chip pulse-shaper and

a low-power line driver. The receiver has an adaptive

equalizer and a baseline restoration circuit required

for accurate clock and data recovery. The transceiver

interfaces to Category-5 unshielded twisted pair (Cat-

5 UTP) cabling for 100BASE-TX/10BASE-T and

Category-3 unshielded twisted pair for 10BASE-T,

and is connected to the line media via 1:1 isolation

transformers. No external filter is required. Interface

to the MAC is accomplished through an IEEE-802.3

compliant Media Independent Interface (MII). The

product is fabricated in an advanced CMOS process

for high performance and low power operation.

•

10BASE-T/100BASE-TX IEEE-802.3 compliant

TX and RX functions requiring a dual 1:1

isolation transformer interface to the line

•

Integrated MII, 10BASE-T/100BASE-TX ENDEC,

100BASE-TX scrambler/descrambler, and full-

featured auto-negotiation function

•

Full duplex operation capable

PCS Bypass supports 5-bit symbol interface

Dual speed digital clock recovery

Automatic polarity correction during auto-

negotiation and 10BASE-T signal reception

•

Power-saving and power-down modes

including transmitter disable

LED indicators: LINK, TX, RX, COL, 100, 10,

FDX

•

User programmable Interrupt pin

64-Pin TQFP (JEDEC LQFP) package

Single 3.3 V ± 0.3V Supply

BLOCK DIAGRAM

4B/5B Encoder,

Pulse Shaper

100M

10M

NRZ/NRZI

Scrambler,

MLT3 Encoder

and Filter

Parallel/Serial

TXOP/N

RXIP/N

RX_CLK

TX_CLK

RXD[3:0]

TX CLK GEN

MII

Registers

MDI

Parallel/Serial,

MMaanncchheesstteerrEEnnccooddeerr

Interface

Logic

Auto

Negotiation

TXD[3:0]

Carrier Sense,

Co lision Detect

Collision Detect

Manchester Decoder,

Parallel/Serial

10M

100M

CLK

Adaptive EQ,

Recovery

Baseline Wander Correct,

MMLLTT33DDeeccooddee,,NNRRZZII//NNRRZZ

Serial/Parallel

Descrambler,

5B/4B Decoder

Clock Reference

LEDs

LEDL

LEDBTX

LEDTX LEDCOL

LEDRX

VCC GND

CKIN 25MHz

LEDBT

LEDFX

Rev_1.1

12 3 4 5 6 7...33

中文翻译

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与78Q2120C-64CGT/F相关器件

型号	品牌	获取价格	描述	数据表
78Q2120-CGT	ETC	获取价格	10/100BASE-TX Ethernet Transceiver
78Q2120R-G	TDK	获取价格	Ethernet Transceiver, BICMOS, PQFP64, TQFP-64
78Q2123	TERIDIAN	获取价格	10/100BASE-TX Transceiver
78Q2123/F	TERIDIAN	获取价格	10/100BASE-TX Transceiver
78Q2123/F1	MAXIM	获取价格	Ethernet Transceiver, 5 X 5 MM, LEAD FREE, QFN-32
78Q2123CGV/F	TERIDIAN	获取价格	10/100BASE-TX Transceiver
78Q2123CGVR/F	TERIDIAN	获取价格	10/100BASE-TX Transceiver
78Q2123R/F	TERIDIAN	获取价格	10/100BASE-TX Transceiver
78Q2123R/F1	MAXIM	获取价格	Ethernet Transceiver, 5 X 5 MM, LEAD FREE, QFN-32
78Q2132	TDK	获取价格	1/10BASE-T HomePNA/Ethernet Transceiver

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