TI introduces flexible, dual-speed SerDes device for EPON optical line terminals
Fast-relock transceiver makes system upgrades easier
"Texas Instruments' TLK2541 is an outstanding SerDes complement to the Teknovus TK3723 Turbo-EPONTM Optical Line Terminal MAC," said Jerry Wojtowicz, director of hardware engineering, Teknovus. "Together, they enable the design and deployment of optical line terminals for cost-effective FTTx networks supporting internet, voice and HDTV triple-play services."
The TLK2541 provides very high-speed input/output data channels for baseband data transmission over controlled impedance media of approximately 50 ohms. The transmission media can be printed-circuit board, copper cable or fiber-optic cable. It offers a low-power solution with a 2.5-V power supply, consuming less than 625 mW.
Other key features include the following:
- Fast relock at 1.25 Gbps and 2.5 Gbps for EPON optical line terminals
- Industrial temperature range -40C to 85C
- Integrated 50-ohms termination resistors on RX
- 2.5-V supply voltage for low power operation
- On-chip 8-bit/10-bit encoding/decoding
- Hot plug protection
The TLK2541 transceiver complements TI's family of SerDes devices for 1.25 Gbps EPON units, including the TLK1211 and TLK1221 transceivers. Other serial gigabit transceivers from TI support Ethernet and general purpose communications applications. They contribute to TI's broad interface product offering including families of products for M-LVDS, LVDS, CAN, RS-485, RS-232 and PCI-Express standards. Please see the Interface Selection Guide for more information.
Availability The TLK2541 is available now in an 80-pin TQFP package, priced at $12.50 in 100-unit quantities. In addition, samples are available online today.
Texas Instruments Deutschland GmbH
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