Overview
The HMC983LP5E is a fractional-N frequency divider and frequency sweeper designed by Analog Devices Inc. This component is optimized for applications requiring exceptional spurious performance and precise frequency control. Fabricated using the SiGe BiCMOS process, it is particularly suited for fractional-N frequency synthesis and stand-alone low noise frequency divider applications. The HMC983LP5E is highly versatile and can be paired with the HMC984LP4E phase detector for enhanced performance.
Key Specifications
| Parameter | Conditions | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| RF Input Frequency Range | DC | 7 GHz | |||
| RF Input Sensitivity | -15 dBm | -10 dBm | 0 dBm | ||
| RF Input Capacitance | External Match Recommended | 3 pF | |||
| Divider Range (20-bit) | Integer Mode | 32 | 1,048,575 | ||
| Divider Range (20-bit) | Fractional Mode | 36 | 1,048,571 | ||
| Output Buffer Current | Programmable in 2.5 mA Steps | 5 mA | 12.5 mA | 17.5 mA | |
| Output Voltage Swing | Single-Ended, Vpullup = 5 V | 0.75 V | 1 V | 2 V | |
| Output Frequency Range | Integer Mode | DC | 150 MHz | ||
| Output Frequency Range | Fractional Mode | DC | 125 MHz | ||
| Phase Noise | 50 MHz PFD, 6 GHz Input, Integer Mode | -160 dBc/Hz | |||
| Operating Temperature Range | -40 °C | +85 °C |
Key Features
- 48-bit Delta Sigma Fractional Modulator (DSM) with programmable phase accumulator size for precise frequency step size and resolution.
- Integrated frequency sweeper with linear, coherent sweeps in 2-way, 1-way, and user-defined sweep modes.
- Automatic or triggered sweep modes with hardware trigger pin or SPI trigger and optional delayed trigger.
- Five general-purpose I/Os (GPIOs) for external DSM cycle slip prevention support and importing/exporting DSM sequences.
- Differential VCO input and divider output with programmable output current control (5 mA to 17.5 mA) and open collector output driver.
- 32-pin, 5 x 5 mm LP5 package, RoHS-compliant, and low stress injection molded plastic.
Applications
- Test Equipment: The HMC983LP5E is suitable for various test equipment applications due to its precise frequency control and low spurious performance.
- Fractional-N Frequency Synthesis: Ideal for applications requiring fractional-N frequency synthesis, such as in wireless communication systems.
- Stand-alone Low Noise Frequency Dividers: Used in scenarios where low noise and high precision frequency division are critical.
Q & A
- What is the primary function of the HMC983LP5E?
The HMC983LP5E is a fractional-N frequency divider and frequency sweeper. - What process is used to fabricate the HMC983LP5E?
The HMC983LP5E is fabricated using the SiGe BiCMOS process. - What is the frequency range of the RF input?
The RF input frequency range is from DC to 7 GHz. - What are the key features of the integrated frequency sweeper?
The integrated frequency sweeper supports linear, coherent sweeps in 2-way, 1-way, and user-defined sweep modes, with automatic or triggered options. - How is the output buffer current controlled?
The output buffer current is programmable in 2.5 mA steps, ranging from 5 mA to 17.5 mA. - What is the operating temperature range of the HMC983LP5E?
The operating temperature range is from -40 °C to +85 °C. - Can the HMC983LP5E be used with other components for enhanced performance?
Yes, it is recommended to pair the HMC983LP5E with the HMC984LP4E phase detector for enhanced performance. - What package type does the HMC983LP5E come in?
The HMC983LP5E comes in a 32-pin, 5 x 5 mm LP5 package. - Is the HMC983LP5E RoHS-compliant?
Yes, the HMC983LP5E is RoHS-compliant. - What are some typical applications of the HMC983LP5E?
Typical applications include test equipment, fractional-N frequency synthesis, and stand-alone low noise frequency dividers.
