Overview
The HMC905LP3E is a SiGe BiCMOS low noise programmable frequency divider produced by Analog Devices Inc. This component is housed in a 3x3 mm lead-less surface mount package and is designed to operate within the 400 MHz to 6 GHz input frequency range. It can be programmed to divide frequencies by N = 1 to N = 4, making it ideal for various high-frequency applications. The device is notable for its high output power, low SSB phase noise, and 50% duty cycle, which are critical for low noise clock generation, LO generation, and LO drive applications.
Key Specifications
| Parameter | Min. | Typ. | Max. | Units |
|---|---|---|---|---|
| RF Input Frequency | 400 | - | 6000 | MHz |
| RF Input Power | 0 | - | 10 | dBm |
| Output Power (Single-ended Out) | - | -6 | - | dBm |
| Phase Noise at 10 MHz Offset for N = 4 | -164 | - | - | dBc/Hz |
| Logic Inputs - VIH | 1.5 | - | 3.3 | V |
| Logic Inputs - VIL | 0 | - | 0.8 | V |
| Analog Supply Voltage (Vcc) | 3.15 | 3.3 | 3.45 | V |
| Total Current Consumption | 82 | 100 | 125 | mA |
| Sleep Current | - | - | 1 | µA |
| Operating Temperature Range | -40 | - | 85 | °C |
Key Features
- Programmable frequency divider with N = 1 to 4 division ratios.
- High output power up to +6 dBm single-ended.
- Very low SSB phase noise (-164 dBc/Hz at 10 MHz offset for N = 4).
- 50% duty cycle for differential mode.
- Configurable bias and output power controls.
- Power down feature with sleep current < 1 µA.
- Good input to output isolation.
- Fast start-up time.
- Suitable for fast switching “ping-pong” applications.
Applications
- LO Generation with low noise floor.
- Software Defined Radios (SDR).
- Clock Generators.
- Fast Switching Synthesizers.
- Military Applications.
- Test Equipment.
- Sensors.
Q & A
- What is the input frequency range of the HMC905LP3E?
The input frequency range is from 400 MHz to 6 GHz. - What are the division ratios available for the HMC905LP3E?
The device can be programmed to divide frequencies by N = 1 to N = 4. - What is the typical output power of the HMC905LP3E?
The typical output power is up to +6 dBm single-ended. - What is the phase noise performance of the HMC905LP3E?
The phase noise is -164 dBc/Hz at 10 MHz offset for N = 4. - What is the duty cycle of the HMC905LP3E in differential mode?
The duty cycle is 50% in differential mode. - Does the HMC905LP3E have a power down feature?
Yes, it has a power down feature with a sleep current of less than 1 µA. - What is the operating temperature range of the HMC905LP3E?
The operating temperature range is from -40°C to 85°C. - Is the HMC905LP3E RoHS compliant?
Yes, it is RoHS3 compliant. - What package type does the HMC905LP3E come in?
The device comes in a 16-lead VFQFN exposed pad package. - What are some typical applications of the HMC905LP3E?
Typical applications include LO generation, software-defined radios, clock generators, fast switching synthesizers, military applications, test equipment, and sensors.
