DDS FM signal generator 78 ~ 108MHz
I. Overview:
HM370 is a small signal generator that generates 78 ~ 108MHz signals. Can also generate 100KHz frequency and duty cycle adjustable pulse signal.
This module is simple to use, input frequency data through key operation, and immediately update the output frequency.
Product application:
● signal generator;
● Instrument calibration;
● DC motor control;
Third, the technical parameter table:
Item Item Parameter Unit Remark
1 Pulse signal range 1 ～ 100000 Hz The duty ratio is 1 ～ 99% pulse signal
2 Pulse duty cycle range 1 ～ 99%
3 Pulse signal amplitude 5 VDC Maximum amplitude 5.0Vp (the output amplitude is unchanged)
4FM signal frequency 78 ~ 108MHz
5FM signalAmplitude 100MV
6 Working voltage 7 ～ 12 VDC
7 Working current <50 mA
8 Working temperature -40 ℃ ～ 65 ℃ Celsius
9 Storage temperature: -40 ℃ ～ 65 ℃
10 size 57 * 45 * 20 mm length X width X height
Fourth, the interface description and related operations
P4 interface (power)
VDD: power positive (7 ～ 12V)
GND: power negative
P3 interface (output signal)
FM: FM signal output.
PWM: Pulse signal output.
GND: negative power supply.
Fourth, the key description
FUN:(Select the operation bit of the setting data) (Press and hold the FUN key to save the set parameter value).
UP: Previous.
DOWN: Next page.
LEFT: Auto-add button.
ROGHT: Decrement key.
Run the picture:
Setting up FMSignal diagram:
Setting the frequency graph
Set the duty cycle graph:
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