CY2X014

Document Number: 001-10179 Rev. *K

Page 4 of 15

Programming Description

The CY2X014 is a programmable device. Prior to being used in

an application, it must be programmed with the output frequency

and other variables described in Programming Variables. Two

different device types are available, each with its own

programming flow. They are described in the following sections.

Field-programmable CY2X014

Field programmable devices are shipped unprogrammed and

must be programmed before being installed on a printed circuit

board (PCB). Customers use CyClockWizard™ software to

specify the device configuration and generate a JEDEC

(extension .jed) programming file. Programming of samples and

prototype quantities is available using the CyClockWizard

software along with a CY3675-CLKMAKER1 CyClockMaker

Clock Programmer Kit with a CY3675-LCC6A socket adapter.

Cypress’s value-added distribution partners also provide

programming services. Field-programmable devices are

designated with an ‘F’ in the part number. They are intended for

quick prototyping and inventory reduction.

The software and programmer kit hardware can be downloaded

from www.cypress.com by clicking the hyperlinks in the previous

paragraph.

Factory-configured CY2X014

For ready-to-use devices, the CY2X014 is available with no field

programming required. A request for a custom configuration can

be made. All requests are submitted to the local Cypress Field

Application Engineer (FAE) or sales representative. After the

request is processed, the user receives a new part number,

samples, and datasheet with the programmed values. This part

number is used for additional sample requests and production

orders. The CY2X014 is one-time programmable (OTP).

Programming Variables

Output Frequency

The CY2X014 can synthesize a frequency to a resolution of one

part per million (ppm), but the actual accuracy of the output

frequency is limited by the accuracy of the integrated reference

crystal.

The CY2X014 has an output frequency range of 50 MHz to

690 MHz, but the range is not continuous. The CY2X014 cannot

generate frequencies in the ranges of 521 MHz to 529 MHz and

596 MHz to 617 MHz.

Pin 1: Output Enable (OE) or Power Down (PD#)

Pin 1 is programmed as either OE or PD#. The OE function is

used to enable or disable the CLK output quickly, but it does not

reduce core power consumption. The PD# function puts the

device into a low power state, but the wake-up takes longer

because the PLL must reacquire the lock.

Industrial versus Commercial Device Performance

Industrial and commercial devices have different internal

crystals. They have a potentially significant impact on

performance levels for applications requiring the lowest-possible

phase noise. CyClockWIzard software allows the user to select

between and view the expected performance of both options.

Table 1. Device Programming Variables

Variable

Output frequency

Pin 1 function (OE or PD#)

Temperature range (commercial or industrial)