Cypress CY7B923CY7B933 HotLink™ Transmitter Receiver Datasheet Manual

查询CY7B923供应商

CY7B923 CY7B933

HOTLink™ Transmitter/Receiver Features twisted pair). Standard HOTLink data rates range from 160-330 Mbits/second. Higher speed HOTLink is also avail-

Fibre Channel compliant able for high speed applications (160-400 Mbits/second), as

IBM ESCON® compliant well as for those Low Cost applications HOTLink-155 (150-160 Mbits/second operations). Figure 1 illustrates typical connec-

DVB-ASI compliant

tions to host systems or controllers.

ATM compliant

Eight bits of user data or protocol information are loaded into

8B/10B-coded or 10-bit unencoded

the HOTLink transmitter and are encoded. Serial data is shift-

Standard HOTLink: 160–330 Mbps

ed out of the three differential positive ECL (PECL) serial ports

High Speed HOTLink: 160–400 Mbps for high speed ap-

at the bit rate (which is 10 times the byte rate).

plications

The HOTLink receiver accepts the serial bit stream at its dif-

Low Speed HOTLink: 150–160 Mbps for Low Cost Fiber

ferential line receiver inputs and, using a completely integrated

applications

PLL Clock Synchronizer, recovers the timing information nec-

TTL synchronous I/O

essary for data reconstruction. The bit stream is deserialized,

No external PLL components

decoded, and checked for transmission errors. Recovered

Triple PECL 100K serial outputs bytes are presented in parallel to the receiving host along with

Dual PECL 100K serial inputs a byte-rate clock.

Low power: 350 m W (Tx), 650 m W (Rx) The 8B/10B encoder/decoder can be disabled in systems that

Compatible with fiber-optic modules, coaxial cable, and already encode or scramble the transmitted data. I/O signals twisted pair media are available to create a seamless interface with both asyn- chronous FIFOs (i.e., CY7C42X) and clocked FIFOs (i.e.,

Built-In Self-Test

CY7C44X). A Built-In Self-Test pattern generator and checker

Single +5V supply

allows testing of the transmitter, receiver, and the connecting

28-pin SOIC/PLCC/LCC

link as a part of a system diagnostic check.

0.8µ Bi CMOS

HOTLink devices are ideal for a variety of applications where a parallel interface can be replaced with a high-speed

Functional Description

point-to-point serial link. Applications include interconnecting The CY7B923 HOTLink™ Transmitter and CY7B933 HOTLink workstations, servers, mass storage, and video transmission Receiver are point-to-point communications building blocks equipment.

that transfer data over high-speed serial links (fiber, coax, and

CY7B923 Transmitter Logic Block Diagram CY7B933 Receiver Logic Block Diagram

SC/D (Da) D0− RF

(Db h) FRAMER

SVS(Dj) A/B

ENAENNRP

ENABLE DATAINA−

SHIFTER

INPUT REGISTER INB(INB+)

SI(INB−

DECODER REGISTER

ENCODER PECL SO TTL

CLOCK CLOCK GENERATOR OUTA SYNC DECODER

SHIFTER OUTB REFCLK

OUTC OUTPUT

MODE TEST

REGISTER

MODE TEST LOGIC

BISTEN

BISTEN LOGIC

CKR RDY RVS(Qj)

(Qb h)

SC/D(Qa) B923–2

HOTLink is a trademark of cypress Semiconductor Corporation. ESCON is a registered trademark of IBM.

Cypress Semiconductor Corporation North First Street San Jose CA 95134 408-943-2600

April 5, 1999