Datasheet

TLK2711A
SLLS908B –JULY 2008–REVISED OCTOBER 2012 www.ti.com
Testability
The TLK2711A has a comprehensive suite of built-in self-tests. The loopback function provides for at-speed
testing of the transmit/receive portions of the circuitry. The enable terminal allows for all circuitry to be disabled
so that a quiescent current test can be performed. The PRBS function allows for BIST (built-in self-test).
Loopback Testing
The transceiver can provide a self-test function by enabling (LOOPEN) the internal loop-back path. Enabling this
terminal causes serial-transmitted data to be routed internally to the receiver. The parallel data output can be
compared to the parallel input data for functional verification. (The external differential output is held in a high-
impedance state during the loopback testing.)
Built-In Self-Test (BIST)
The TLK2711A has a BIST function. By combining PRBS with loopback, an effective self-test of all the circuitry
running at full speed can be realized. The successful completion of the BIST is reported on the RKLSB terminal.
Power-On Reset
Upon application of minimum valid power, the TLK2711A generates a power-on reset. During the power-on reset
the RXD[0..15], RKLSB, and RKMSB signal terminals go to a high-impedance state. The RXCLK is held low. The
length of the power-on reset cycle is dependent upon the TXCLK frequency, but is less than 1 ms.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature (unless otherwise noted)
(1)
VALUE UNIT
V
DD
Supply voltage
(2)
–0.3 to 3 V
Voltage range at TXD[0..15], ENABLE, TXCLK, TKMSB, TKLSB, LOOPEN, –0.3 to 4 V
PRBSEN, LCKREFN, PRE
Voltage range at any other terminal except above –0.3 to V
DD
+0.3 V
P
D
Package power dissipation See Dissipation Rating Table
T
stg
Storage temperature –65 to 150 °C
HBM 4 kV
Electrostatic discharge
CDM 1.5 kV
RCP –40 to 85 °C
Characterized free-air operating
T
A
temperature range
GQE 0 to 70 °C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260 °C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) All voltage values, except differential I/O bus voltages, are stated with respect to network ground.
DISSIPATION RATINGS
(1)
θ
JA
θ
JC
T
A
= 25°C
PACKAGE
(°C/W) (°C/W) POWER RATING
GQE 37.8 4.56 3.3 W
(1) This data was taken using 2-oz trace and copper pad that is soldered directly to the JEDEC standard
4-layer, 3-inch x 3-inch PCB.
DISSIPATION RATINGS
T
A
≤ 25°C DERATING FACTOR
(1)
T
A
= 70°C
PACKAGE
POWER RATING ABOVE T
A
= 25°C POWER RATING
RCP64
(2)
5.25 W 46.58 mW/°C 2.89 W
(1) This is the inverse of the traditional junction-to-ambient thermal resistance (R
θJA
).
(2) 2 oz. Trace and copper pad with solder.
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