HFBR-4663

Features:

• Single Chip Solution for 10BASE-FL Internal or External Medium Attachment Units (MAUs)
• Specifically Designed for Use with HFBR-14X4 and HFBR-24X6 Fiber-optic Transmitters and Receivers
• Incorporates an AU Interface
• Highly Stable Data Quantizer with 55 dB Input Dynamic Range
• Input Sensitivity as Low as 2 mVP-P
• Current Driven Fiber Optic LED Driver for Accurate Launch Power
• Single +5 Volt Supply
• No Crystal or Clock Required
• Five Network Status LED Outputs
• Available in 28 Pin PCC Package
• Semi-Standard Option Available


Pinout




Specifications

Parameter	Symbol	Min.	Max.	Units
Storage Temperature	TS	-65	+150	C
Operating Temperature	TA	0	70	C
Lead Soldering Cycle Temperature			260	C
Lead Soldering Cycle Time			10	sec
Power Supply Voltage Range	VCC	-0.3	6.0	V
Input Voltage Range	Digital Inputs (SQEN, LBDIS) Tx+, Tx-, VIN+, VIN-	-0.3 -0.3	6.0| 6.0	V V
Input Current	RRSET, RTSET, JAB, CLSN, XMT, RCV, LMON		60	mA
Output Current	TxOUT		70	mA

Description

The HFBR-4663 Single Chip 10BASE-FL Transceiver is a highly integrated circuit for IEEE 802.3 10Base-FL transceivers. This product, when used with HP's fiber-optic transmitters and
receivers (HFBR-14X4 and HFBR-2416), ensures compliance to the 10Base-FL Standard with a minimum number of external components and board space.

The HFBR-4663 offers a standard IEEE 802.3 AU interface that allows it to be directly connected to industry standard manchester encoder/decoder chips or an AUI connector. The fiber-optic LED driver offers a current drive output that directly drives the HFBR-14X4 transmitter. The data quantizer section of the HFBR- 4663 is directly compatible with the output of the HFBR-24X6 fiber-optic receiver and is capable of accepting input signals as low as 2 mVp-p with a 55 dB dynamic range.

The HFBR-4663 transmitter automatically inserts 1 MHz signal during idle time and removes this signal on reception. Low light is continuously monitored for both activity as well as power level. Five LED status indicators monitor error conditions as well as transmissions, receptions, and collisions.