1:4 DDR PLL 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 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 applying a >20-MHz input signal this detection circuit turns on the PLL again and enables the outputs.
When AVDD is tied to GND, the PLL is turned off and bypassed for test purposes. The CDCV855 is also able to track spread spectrum clocking for reduced EMI
Since the CDCV855 is based on PLL circuitry, it requires a stabilization time to achieve phase-lock of the PLL This stabilization time is required following power up. The CDCV855 is characterized for both commercial and industrial temperature ranges.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
CDCV855IPWR Texas Instruments 1:4 DDR PLL Clock Driver 28-TSSOP -40 to 85
CDCV855IPW Texas Instruments 1:4 DDR PLL Clock Driver 28-TSSOP -40 to 85
CDCV855IPWG4 Texas Instruments 1:4 DDR PLL Clock Driver 28-TSSOP -40 to 85
CDCV855PWG4 Texas Instruments 1:4 DDR PLL Clock Driver 28-TSSOP 0 to 70
CDCV855PW Texas Instruments 1:4 DDR PLL Clock Driver 28-TSSOP 0 to 70
CDCV855IPWRG4 Texas Instruments 1:4 DDR PLL Clock Driver 28-TSSOP -40 to 85
CDCV855PWR Texas Instruments 1:4 DDR PLL Clock Driver 28-TSSOP 0 to 70
CDCV855PWRG4 Texas Instruments 1:4 DDR PLL Clock Driver 28-TSSOP 0 to 70
CDCV855 's PackagesCDCV855 's pdf datasheet
CDCV855IPW TSSOP
CDCV855IPWG4 TSSOP
CDCV855IPWR TSSOP
CDCV855IPWRG4 TSSOP
CDCV855PW TSSOP
CDCV855PWG4 TSSOP
CDCV855PWR TSSOP
CDCV855PWRG4 TSSOP

CDCV855 pdf datasheet download


CDCV855 Pinout, Pinouts
CDCV855 pinout,Pin out
This is one package pinout of CDCV855,If you need more pinouts please download CDCV855's pdf datasheet.

CDCV855 Application circuits
CDCV855 circuits
This is one application circuit of CDCV855,If you need more circuits,please download CDCV855's pdf datasheet.


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