Tektronix CR175A Clock Recovery Instrument

The Tektronix CR175A advanced architecture measures and displays the PLL frequency response from 100 kHz to 12 MHz. This is the first clock recovery instrument to allow full control of parameters --including loop bandwidth, peaking/damping, and roll off.

The Tektronix CR175A instrument also allows you to view and measure SSC generated in your system. Problems with the SSC modulation waveform can result in clock rate deviation beyond the capability of the channel or receiver. To avoid the tracking and possible EMI problems from incorrect deviation rates, some of the new serial data standards are specifying the minimum and maximum rate of change of the SSC carrier frequency. The Tektronix CR175A clock recovery instrument can directly display the dF/dt function and provide a parametric measurement of the minimum and maximum peaks.

The CR175A is part of the Tektronix Clock Recovery Series of testers.

Product Info

Input sensitivity	100 mV single ended (typical) 50 mV differential (typical)
Input data rate coverage	150 Mb/s to 17.5 Gb/s
Data insertion loss	2 dB (min), 2.6 dB (typical), 3 dB (max), up to 12.5 Gb/s
Data input voltage range	-5 V (min), +5 V (max)
Measured edge density accuracy	± 1%, up to 14.3 Gb/s, ± 3% >14.3 Gb/s
Equalization range	0 to 10 dB
Data output	Up to 12.5 Gb/s

Instrumentation quality clock recovery.
Accurate, variable loop bandwidth from 100 kHz to 12 MHz, with optional 24 MHz for the jitter transfer function (JTF) bandwidths of USB.
3.0, SATA 6G, and PCIe Gen-3.
Accurate, adjustable, self-measured, and displayed PLL loop bandwidth, peaking, and JTF – get the "Golden PLL" response needed for standards compliance testing.
Programmable peaking adjustment with first- and second-order roll-off capability.
USB control interface integrated into BERTScope view, or stand-alone with included BERTScope PC software.

Design/Verification of high-speed I/O components and systems
Signal integrity analysis
Certification testing of serial data streams for industry standards