TLK2711-SP_15 Datasheet, PDF (24/29 Pages) Texas Instruments – 1.6-Gbps to 2.5-Gbps Class V Transceiver

TLK2711-SP
SGLS307N – JULY 2006 – REVISED DECEMBER 2015
www.ti.com
10 Power Supply Recommendations
Power supplies must be within recommended operating range and should have less than 100 mV of ripple.
Exceeding 100-mV ripple can impact transmitted jitter and receiver jitter tolerance.
VDDA should be filtered from VDD. Filter values should be set to minimize any frequency components from
power supply and/or digital logic that may exist in the system in the range of the PLL jitter transfer
characteristics. The PLL is sensitive to noise in the range of 300 kHz to 3 MHz.
11 Layout
11.1 Layout Guidelines
Standard high-speed differential routing best practices must be employed. Routing should be 50-Ω matched
impedance and length for differential transmit and receive. Minimize layer transitions and stubs to reduce any
impedance mismatches. Connecting the thermal pad to board ground improves device performance by supplying
lower impedance path to ground minimizing ground bounce and improves thermal dissipation.
11.2 Layout Example
Figure 18. Layout Recommendation
24
Submit Documentation Feedback
Copyright © 2006–2015, Texas Instruments Incorporated