Description
AD9834 Sine Triangle Wave Square Wave Signal Generator Circuit DDS Sweep Frequency Source Function Signal Generator
Product Description
The AD9834 is a 75MHz, low power DDS device capable of generating high performance sine and triangle wave outputs. It also integrates a comparator on-chip, which supports the generation of square waves for clock generation. When the supply voltage is 3 V, its power consumption is only 20 mW, which is very suitable for applications with strict power consumption requirements. The AD9834 provides phase modulation and frequency modulation functions. The frequency register is 28 bits; the clock rate is 75 MHz, enabling a resolution of 0.28 Hz. Likewise, the AD9834 with a clock rate of 1 MHz can achieve a resolution of 0.004Hz. The way to affect the frequency and phase modulation is to load the registers via the serial interface and then toggle the registers via software or the FSELECT/PSEL6CT pins.
Specification
|
item
|
value
|
|
Module model
|
AD9850
|
|
Module type
|
digital synthesis frequency source
|
|
Module power supply
|
DC-5V
|
|
Module current
|
20mA (MAX); normal drive current 15mA
|
|
Module communication protocol
|
SPI serial
|
|
Module provides routines
|
STM32F103RC
|
|
Routine platform
|
STM32F103X KEIL5 version source code
|
|
Module system main frequency
|
75MHz (MAX)
|
|
DAC resolution digits
|
10 digits
|
|
Phase accumulator bits
|
28 bits
|
|
Module output interface
|
S-M-A; 24-hour salt spray anti-oxidation
|
|
Module output signals
|
Sine wave, square wave, triangle wave; Sine wave with 30MHz low pass filter. Square wave coupled output. Square wave and triangle wave cannot be output at the same time
|
|
Module output channel
|
2 channel differential; The phase difference is 180 degrees, and the phase of the high frequency output will shift due to the filter
|
|
Signal characteristics
|
The sine wave has no coupling output; the output belt has its own DC component, please add a DC blocker when connecting to RF
equipment It can also be measured directly using an oscilloscope. |
|
Max main frequency output sine wave signal range
|
1Hz-30MHz
|
|
The max main frequency output square wave signal range
|
1Hz-10MHz; above 5MHz, the oscilloscope input impedance is 50 ohms, and the square wave duty cycle is adjustable.
|
|
Output amplitude
|
sine wave 530mVpp (MAX) square wave 3.3Vpp; sine wave amplitude decreases with increasing frequency, square wave waveform changes
with increasing frequency |
|
Output impedance
|
200 ohms
|
|
Module features
|
multiple; high-performance DDS sine wave signal generator, high-order elliptic filter, Low noise regulator chip, etc.
|
|
Module application
|
multiple; frequency signal generation, sine wave, square wave signal generation, sensor excitation
|
|
Module specifications
|
50*50*13.6mm; length * width * height-PCB size
|
|
Module interface type
|
SMA signal output and external clock input, DC5.5 power socket, XH2.54-14PIN double-row pin data interface
|
Details Images