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
Support Communities
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DA14531: setting tx power is not working
Hi Renesas team, I am working with the DA14531 on the Pro Development Kit. I want to change the tx power of the chip so I call rf_pa_pwr_set(...) and set_recommended_settings() in the user_app_init() callback function. When I do it like this the device ...
Oct 27, 2022 -
DA16200 AT commands - how to get *out* of DPM mode?
I have the DA16200 EVK board and am able to run basic commands, connect to WiFi, etc. When I enable DPM mode (AT+DPM=1), the chip goes into DPM as expected. However, it no longer responds to AT commands. How are you supposed to get the EVK board out ...
Oct 25, 2022 -
Writing to QSPI on EK-RA6M5
Hello, I'm trying to test reading a writing to QSPI, but I'm getting some strange output when doing so. I'm pretty new to this kind of programming, so I'm using the example project qspi_ek_ra6m5_ep as a base for my code so far, and ...
Nov 3, 2022
FAQs
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What is error occur during programming of uPD78F9488 using the FL-PR3?
The initialize error indicates that the device and programmer cannot communicate at all. This is normally the case when there is a problem with the connection, or when the device does not operate. Please check the following points. The connection on p.290 of the user's manual is the ...
Jul 1, 2001