Datasheet
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70
10
9
8
71727374757677787980
7
6
5
4
3
2
20
19
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11
36353433323130292827262524232221
56
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41
40393837
69 68 67 66 65 64 63 62 61
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TLK2541
GND
TXD1
TXD0
PRE
GNDA
REFCLK
DOUTTXN
VDDA
DINRXN
RXRATE
GNDA
RXD0
RXD1
RXD2
VDD
GND
RXD3
RXD4
RXD5
RXD6
RXD7
GND
RX_CLK
RXD8
RXD9
RXD10
VDD
RXD11
RXD12
RXD13
RXD14
RXD15
VDD
GND
RXD16
RXD17
RXD18
RXD19
GND
CTRL0
SYNCEN
LCKREFN
VDD
LOOPEN
CTRL1
TXD19
TXD18
TXD17
VDD
TXD16
TXD15
GND
TXD14
TXD13
TXD12
GND
TXD11
TXD10
TXD9
VDD
TX_CLK
TXD8
TXD7
GND
TXD6
TXD5
TXD4
TXD3
VDD
TXD2
TESTEN
PRBSEN
DINRXP
VDDA
GNDA
VDDA
TXRATE
DOUTTXP
RXCODE
PRBSPASS
TLK2541
SLLS779B –JANUARY 2008–REVISED APRIL 2008
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
DESCRIPTION (CONTINUED)
At half rate, the TLK2541 only uses half of the parallel transmit and receive data busses. 10 bits of data on
TXD[0:9] are latched by TX_CLK and serialized. If 8B/10B coding is enabled, 8 bits of data plus 1 bit of control is
latched and the resulting 10 bit code word is serialized. The 10 bit received data word is output on RXD[0:9]. If
8B/10B decoding is enabled, the 10 bit received word is decoded and the 8 bit data plus 1 bit status is output.
The TLK2541 provides an internal loopback capability for self-test purposes. Serial data from the serializer is
passed directly to the deserializer, providing the protocol device with a functional self-check of the physical
interface.
The TLK2541 uses a 2.5-V supply. The I/O section is 3 V compatible. With the 2.5-V supply the chipset is very
power efficient, consuming less than 625 mW typically. The TLK2541 is characterized for operation from –40°C
to 85°C.
The TLK2541 is designed to be hot-plug capable. An on-chip power-on reset circuit holds the RX_CLK low and
goes to high impedance on the parallel side output signal terminals as well as TXP and TXN during power up.
2 Submit Documentation Feedback © 2008, Texas Instruments Incorporated
Product Folder Link(s) :TLK2541