Three phase locked loop universal flash programmable clock generator | Heisener Electronics
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Three phase locked loop universal flash programmable clock generator

Technology Cover
Post-datum: 2023-04-01, Infineon Technologies

The CY22381 is a next-generation programmable Flash programmable clock for networking, telecommunications, data communications, and other general purpose applications. The CY22381 offers up to three configurable outputs in an 8-pin SOIC, powered by a 3.3V power supply.


Pinouts

                                              

The on-chip reference oscillator is designed to run crystals at 8-30 mhz, or external clock signals at 1-166 mhz. The CY22381 has three PLLS driving three programmable output clocks. The output clock is derived from the PLL or reference frequency (REF). The post-output splitter can be used for either.


CY22381 Logic Block Diagram

             

CY22381 Test Circuit

                                        


Features

● Three integrated phase-locked loops

● Wide division counter (8-bit Q, 11-bit P and Seven posts)

● Improved linear crystal load capacitor

● Flash programmability

● Field programmable

● Low jitter, high precision output

● Power management options (shutdown, OE, hang)

● Crystal drive strength can be configured

● Select frequency options via external LVTTL input

● 3.3V operation

● 8-pin small profile integrated circuit (SOIC) package (CY22381)

● 8-pin SOIC package with NiPdAu Lead finish (CY223811)

● CyClocks RT  support


Ordering Code Definitions

                             

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