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DDS-based Programmable Oscillator Module
Model PCK-240 |
PCK-240 is wide band clock source utilizing Direct Digital Synthesis and Phase Locked
Loop teechnique. It provides any frequency output from 1MHz to 240MHz in 1 Hz step.
The frequency can be controlled by parallel data such as DIP SW or serial data which
can be connected to PC communication port. PCK-240 can be used for high-speed clock
signal source.
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FEATURES |
- Wide band(1MHz-240MHz), high resolution(1Hz)
- Single power supply +5V
- Frequency controlled by parallel and serial data
- Frequency stored in non-volatile memory
- Low jitter
- High stability by external clock input(10MHz)
- Compact
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APPLICATION |
- Various clock source
- Numerically controlled oscillator
- Signal Generator
- Sweep oscillator
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| Power Supply |
+5V ±5%, 300mA |
| Frequency range |
1,000,000Hz-240,000,000Hz |
| Output Level |
1Vp-p 50ohm termination |
| Analog output impedance |
50ohm |
| CMOS/TTL duty cycle |
50% ±10% |
| Frequency resolution |
1Hz |
| Frequency Accuracy |
internal : ±20ppm, 0-50 degrees C (adjustable to +/-10ppm)
external : depends on external clock accuracy |
| Jitter |
less than ±2nS |
| Spurious |
-40dB(harmonics are excluded) |
| Non-Voltile memory save times |
more than 10,000 |
| Frequency Control |
Parallel input 6bits control lines
4-bit BCD input, 1 bit digit/data selection
1 bit strobe signal
Serial input, 2signal wires
9600 BPS,8bit, without parity
1 stop bit,
ASCII 9digit numeric data and delimitter.
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| Exteral clock |
10MHz(TTL/CMOS) |
| Frequency switching time |
within 2mS(time from setting freq. data to getting signal) |
| Dimensions |
61x46x16mm |
| Frequency (MHz) |
Jitter (ps rms) |
| 10 |
12 |
| 20 |
13 |
| 30 |
17 |
| 40 |
43 |
| 50 |
33 |
| 60 |
57 |
| 70 |
48 |
| 80 |
65 |
| 90 |
52 |
| 100 |
68 |
| 110 |
63 |
| 120 |
50 |
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| Frequency (MHz) |
Jitter (ps rms) |
| 130 |
49 |
| 140 |
44 |
| 150 |
64 |
| 160 |
79 |
| 170 |
61 |
| 180 |
44 |
| 190 |
43 |
| 200 |
53 |
| 210 |
67 |
| 220 |
87 |
| 230 |
87 |
| 240 |
95 |
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Remark : Cycle to Cycle Jitter Typical Value
Refer to the User's Manual |
PCK240u.pdf
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OPTION Frequency setting board FIX-240 |
Frequency setting board FIX-240 can be set frequency easily
with BCD switches.
A frequency and setting value can be memorized with a save
switch on the board.
When the module is used for itself, it is used
as a memory setting tool of the parameter.
Just insert the module to the sockets of the board. Also, the detaching is easy.
For more information, click below.
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| FIX240u.pdf |
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