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TLK1221-TLK1221RHAR-TLK1221RHAT
Gigabit Ethernet Serdes in small 40-pin package
12131415161718192039383736RHA Package
(Top View)34333231
ENABLE
TD0
TD1
TD2
TD3
VDD
TD4
TD5
TD6
TD7
SYNC
RD0
RD1
RD2
VDD
RD3
RD4
RD5
RD6
RD7
GNDATXNTXPVDDAVDDPLLGNDARXPRXNSYNCENPRBSEN
GND
TD8TD9
RBCMODE
REFCLK
LOOPEN
VDD
RBC0
RD9RD8
RBC1
TLK1221
www.ti.com....................................................................................................................................... SLLS713C–FEBRUARY 2007–REVISED SEPTEMBER 2009
ETHERNET TRANSCEIVER
Checkfor Samples: TLK1221
1FEATURES
23• 0.6-to 1.3-Gigabits Per Second (Gbps)
Serializer/Deserializer Low Power Consumption 250 mW (typ)at 1.25
Gbps LVPECL-Compatible Differential I/O on
High-Speed Interface Single Monolithic PLL Design Support For 10-Bit Interface Fast Relock Times Less Than 256 ns (typ)
Suitable for EPON/GEPON Applications such OLT and ONU Systems Receiver Differential-Input Thresholds, 200-mV
Minimum Industrial Temperature Range From –40°Cto
85°C IEEE 802.3 Gigabit Ethernet Compliant Designedin 0.25 μm CMOS Technology No External Filter Capacitors Required Comprehensive Suiteof Built-In Testability 2.5-V Supply Voltage for Lowest-Power
Operation 3.3-V Tolerant on LVTTL Inputs Hot Plug Protection 40-Pin 6-mm× 6-mm QFN PowerPAD™
Package provides for high-speed full-duplex point-to-point data transmissions. timing requirementsof the 10-bit interface specification by the IEEE 802.3 The TLK1221 supports data rates from 0.6 Gbps through 1.3 Gbps.is to provide point-to-point baseband dataof 50 Ω. The transmission media. The ultimate rate and distanceis dependent upon and the noise couplingto the environment. deserialization, and clock extraction functions forat 1.25 Gbps (typical), providing uptoof data
