Overview
Description
The 271 field programmable VCXO clock synthesizer generates up to six high-quality, high-frequency clock outputs including multiple reference clocks from a low-frequency crystal input. It is designed to replace crystals and crystal oscillators in most electronic systems. Using IDT's VersaClockTM software to configure PLLs and outputs, the 271 contains a One-Time Programmable (OTP) ROM for field programmability. Programming features include VCXO, eight selectable configuration registers and up to two sets of three low-skew outputs. Each of the two output groups are powered by a separate VDDO voltage. VDDO may vary from 1.8 V to VDD. Using Phase-Locked Loop (PLL) techniques, the device runs from a standard fundamental mode, inexpensive crystal, or clock. It can replace VCXOs, multiple crystals and oscillators, saving board space and cost. The 271 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
- Input crystal frequency of 5 to 27 MHz
- Up to six reference outputs
- Separate 1.8 to 3.3 V VDDO output level controls for each bank of 3 outputs
- Up to two sets of three 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
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Resources
Support Communities
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iOS and Android source Code
Please send me the source for the Dialog DSPS app on iOS and Android.
Oct 22, 2015 -
HID Mouse
Hi everybody. I'm building a joystick that, besides other utilization, I'd like to use as a mouse for PC. The problem is that it use a DA14580 interfaced with an ext. microcontroller that communicate with it through UART, so i have to modify the Dialog HID mouse profile ...
Oct 8, 2015 -
SUOTA for central devices
Hi all, i would like to know if it is possible (and how) to have the possibility for firmware upgrade over the air for devices configured as GAP_CENTRAL_MST. Best regards, Dario
Oct 6, 2015