ProgRock2
ProgRock2: Triple GPS-disciplined
programmable clock
Contents
1.
Introduction
ProgRock2 is the successor the popular ProgRock kit. It features improved performance, smaller
size, and is ready-assembled using all-SMD components. Configuration is via a micro-USB port
which can also be used to update the firmware.
•
Tiny size PCB, a little smaller than an HC6 crystal: 0.725 x 0.675 inches (18.4 x 17.1mm)
•
Factory assembled, ready-to-use (no assembly required)
•
3 independent 3.3V p-p squarewave outputs (2 if you use GPS discipline)
•
You can feed the outputs through LPF kits to get sinewave outputs
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8 selectable “banks” of frequencies, chosen by 3 input control signals
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Frequency range approx 2kHz to 200MHz from onboard Si5351A or MS5351M
•
Extended frequency range up to approx. 300MHz if you don’t mind violating the Si5351A
datasheet specifications
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Quadrature output mode (Clk0 and Clk1 on same frequency but configurable 0, 90, 180 or
270-degree phase offset)
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GPS frequency discipline using 1pps from a GPS receiver
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Power supply voltage 3.5 to 12V DC
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Frequencies and configuration stored in non-volatile memory for next power-up
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QRP Labs Firmware Update (QFU) bootloader
PLEASE READ THE ENTIRE MANUAL USE INSTRUCTIONS VERY
CAREFULLY BEFORE APPLYING POWER TO THE BOARD!
ProgRock2 manual 1.00b
1
