rf2057 RF Micro Devices, rf2057 Datasheet - Page 18

• Manufacturer Part Number: rf2057
• Description: High Performance Wideband Rf Pll/vco With Integrated Rf Mixers For Repeaters
• Manufacturer: RF Micro Devices

RF2057
Programming the RF2057
The figure below shows an overview of the device programming.
Note: The set-up processes 1 to 2, 2 to 3, and 3 to 4 are explained further below.
Additional information on device use and programming can be found on the RF205X family page of the RFMD web site
(http://www.rfmd.com/rf205x). The following documents may be particularly helpful:
• RF205x Frequency Synthesizer User Guide
• RF205x Calibration User Guide
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7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
ENABLE device
Set calibration
Set-up device
Set operating
Reset device
Apply power
frequencies
Device off
operation
mode
1
2
3
4
Apply power to the device.
Ensure the device is set into a known and correct
state.
To use the device it will be necessary to program the
registers with the desired contents to achieve the
required operating characteristics.
See following sections for details.
When programming is complete the device can be
enabled.
DS091109