參數(shù)資料
型號(hào)： 78Q2133R/F
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 1/38頁(yè)
文件大?。?/td> 0K
描述： TXRX 10/100 MDIX 3.3V IND 32-QFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
類型： PHY 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù)： 4/4
規(guī)程： IEEE 802
電源電壓： 3 V ~ 3.6 V
安裝類型： 表面貼裝
封裝/外殼： 32-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝： 32-QFN 裸露焊盤(pán)（5x5）
包裝： 帶卷 (TR)
78Q2123/78Q2133 MicroPHY
10/100BASE-TX Transceiver
Simplifying System Integration
TM
DATA SHEET
April 2010
Rev. 1.6
2010 Teridian Semiconductor Corporation
1
DESCRIPTION
The 78Q2123 and 78Q2133, MicroPHY
TM, are the
smallest 10BASE-T/100BASE-TX Fast Ethernet
transceivers in the market. They include integrated
MII, ENDECs, scrambler/descrambler, dual-speed
clock recovery, and full-featured auto-negotiation
functions. 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
applications, and Category-3 unshielded twisted pair
(Cat-3 UTP) for 10BASE-T applications. The MDI is
connected to the line media via dual 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
78Q2123/78Q2133 are intended to serve the
embedded Ethernet market, tailored specifically to the
needs of game consoles, broadband modems,
printers, set top boxes and audio/visual equipment. It
is designed for low-power consumption and operates
from a single 3.3V supply. The 78Q2123 is rated for
commercial temperature range and the 78Q2133 is
rated for industrial temperature range.
FEATURES
Smallest 10/100 PHY available
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
Automatic MDI/MDI-X cross over correction
Register-programmable transmit amplitude
Automatic polarity correction during auto-
negotiation and 10BASE-T signal reception
Power-saving and power-down modes including
transmitter disable
2 Programmable LED indicators (Link and
Activity by default)
User programmable Interrupt pin
Package:
32-QFN (5x5 mm)
Low Power (~290mW)
Single 3.3 V
± 0.3V Supply
78Q2123 rated for 0°C to 70°C operation
78Q2133 rated for -40°C to 85°C operation
SMI
TXD
RXD
TXC
RXC
MII
Registers
4B/5B Encoder,
Scrambler,
Parallel/Serial
Parallel/Serial,
Manchester Encoder
Manchester Decoder,
Parallel/Serial
Serial/Parallel
Descrambler,
5B/4B Decoder
MRZ/NRZI
MLT3 Encoder
TX CLK GEN
Carrier Sense,
Collision Detect
CLK
Recovery
Clock Reference
10M
CLKIN 25MHz
Pulse Shaper
and Filter
Auto
Negotiation
Adaptive EQ,
Baseline Wander Correct,
MLT3 Decode, NRZI/NRZ
LEDs
Link
Act
Auto
MDI-X
Mux
10M
100M
Rx/Tx
Tx/Rx
MII
100M
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