Overview
Description
The 290 field programmable spread spectrum clock synthesizer generates up to eight high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal input. It is designed to replace crystals, crystal oscillators and stand alone spread spectrum devices in most electronic systems. Using IDT's VersaClockTM software to configure PLLs and outputs, the 290 contains a One-Time Programmable (OTP) ROM for field programmability. Programming features include input/output frequencies, spread spectrum amount, eight selectable configuration registers and up to two sets of four low-skew outputs. Using Phase-Locked Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace multiple crystals and oscillators, saving board space and cost. The 290 is also available in factory programmed custom versions for high-volume applications.
Features
- Packaged as 20-pin TSSOP – Pb-free, RoHS compliant
- Eight addressable registers
- Replaces multiple crystals and oscillators
- Output frequencies up to 200 MHz at 3.3 V
- Configurable Spread Spectrum Modulation
- Input crystal frequency of 5 to 27 MHz
- Clock input frequency of 3 to 166 MHz
- Up to eight reference outputs
- Up to two sets of four low-skew outputs
- Operating voltages of 3.3 V
- Controllable output drive levels
- Advanced, low-power CMOS process
Comparison
Applications
Design & Development
Software & Tools
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
Support
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Support Communities
-
ERROR: readResponsefromServer() function failed.(error 0x30038) Http implementation using Azure RTOS (Evaluation Board: ek_ra6m3)
I am trying to connect to my server using Azure RTOS. I have successfully initialized ip address and have created http client. The code works fine until nx_web_http_client_request_initialize() but stucks at nx_web_http_client_response_body_get API while reading response from the server.
Nov 3, 2022 -
How to create a composite USB device for mass storage AND CDC ACM?
On my S7G2 I realized 3 mass storage devices accessible over USB. Now I need an additional USB communication channel via CDC ACM over the same USB port.Unfortunately the Synergy-configurator allows only one "USBX Device Configuration". Either "Mass Storage" OR "Communication (CDC)". It's not possible to create ...
Oct 27, 2022 -
PLT '078-55-B' failed to upgrade GU firmware with 'smartbond_plt_v_4.4.2' software
Hi, I am trying to use an old PLT hardware to write a bin file to DA14531 SPI Flash memory. I am using the PLT hardware version '078-55-B' to cowork with the 'smartbond_plt_v_4.4.2' software. The PLT's original GU BLE is 'v_3 ...
Oct 30, 2022