CDCV855I - Texas Instruments

CDCV855I 2.5-V PHASE-LOCK LOOP CLOCK DRIVER

The CDCV855 is a high-performance, low-skew, low-jitter zero delay buffer that distributes a differential clock input pair (CLK, CLK) to four differential pairs of clock outputs (Y[0:3], Y[0:3]) and one differential pair of feedback clock outputs (FBOUT, FBOUT). When PWRDWN is high, the outputs switch in phase and frequency with CLK. When PWRDWN is low, all.

Features

erential clock input pair (CLK, CLK) to four differential pairs of clock outputs (Y[0:3], Y[0:3]) and one differential pair of feedback clock outputs (FBOUT, FBOUT). When PWRDWN is high, the outputs switch in phase and frequency with CLK. When PWRDWN is low, all outputs are disabled to a high-impedance state (3-state), and the PLL is shut down (low-power mode). The device also enters this low-power mode when the input frequency falls below a suggested detection frequency that is below 20 MHz (typical 10 MHz). An input frequency detection circuit detects the low-frequency condition and after ap.