Specifications
SKU: 844588
180 MHz Complete DDS synthesizer
Parameter | Symbol | Conditions | Min | Typical | Max | Unit |
---|---|---|---|---|---|---|
Output Frequency Range | fOUT | VDD = 5V, REFCLK = 125 MHz | 0 | - | 60 | MHz |
Reference Clock Input | fREF | - | 0 | - | 125 | MHz |
Power Supply Voltage | VDD | - | 4.75 | 5.0 | 5.25 | V |
Power Consumption | PCON | fOUT = 10 MHz | - | 230 | - | mW |
Phase Noise (at 1 kHz) | φN | fOUT = 10 MHz | -108 | - | - | dBc/Hz |
Spurious Free Dynamic Range (SFDR) | SFDR | fOUT = 10 MHz, fREF = 125 MHz | - | 70 | - | dBc |
Harmonic Distortion | HD | fOUT = 10 MHz | - | -45 | - | dBc |
Non-Harmonic Spurious | NHSP | fOUT = 10 MHz | - | -60 | - | dBc |
Output Current | IOUT | - | 0.5 | 1.5 | 2.5 | mA |
Output Impedance | ZOUT | - | - | 50 | - | Ω |
Operating Temperature | Toper | - | -40 | - | 85 | °C |
Storage Temperature | Tstg | - | -65 | - | 150 | °C |
Instructions for Use:
Power Supply:
- Ensure the power supply voltage (VDD) is within the range of 4.75V to 5.25V.
- Use a stable and clean power source to avoid noise and interference.
Reference Clock:
- The reference clock input (fREF) should be between 0 MHz and 125 MHz.
- A stable and accurate reference clock is crucial for precise output frequency.
Output Configuration:
- The output frequency (fOUT) can be set from 0 MHz to 60 MHz.
- Use the appropriate control signals and programming methods to set the desired frequency.
Phase Noise:
- The phase noise at 1 kHz offset from the carrier should be less than -108 dBc/Hz for optimal performance.
- Minimize external noise sources and use proper shielding to maintain low phase noise.
Dynamic Range:
- The spurious free dynamic range (SFDR) is typically 70 dBc, indicating the ability to generate a clean signal with minimal spurious content.
- Ensure the system design minimizes harmonic distortion and non-harmonic spurious components.
Output Current and Impedance:
- The output current (IOUT) ranges from 0.5 mA to 2.5 mA.
- The output impedance (ZOUT) is typically 50 Ω, matching standard RF systems.
Temperature Considerations:
- Operate the device within the temperature range of -40°C to 85°C for reliable performance.
- Store the device in an environment where the temperature does not exceed -65°C to 150°C.
Programming:
- Refer to the datasheet for detailed programming instructions and control register configurations.
- Use the provided software tools or custom code to configure the device according to your application requirements.
Layout and PCB Design:
- Follow recommended PCB layout guidelines to minimize parasitic effects and ensure proper signal integrity.
- Use ground planes and decoupling capacitors to reduce noise and improve stability.
Safety and Handling:
- Handle the device with care to avoid static discharge and physical damage.
- Follow ESD (Electrostatic Discharge) precautions during handling and installation.
Inquiry - AD9851BRSZ