Overview
The HMC838LP6CETR from Analog Devices Inc. is a Fractional-N Phase-Locked-Loop (PLL) with an integrated Voltage Controlled Oscillator (VCO). This device is designed to provide high performance and versatility in various RF applications. It features a tri-band RF output, covering the frequency ranges of 795 - 945 MHz, 1590 - 1890 MHz, and 3180 - 3780 MHz. The PLL includes advanced components such as a low noise VCO, an autocalibration subsystem, a very low noise digital Phase Detector (PD), and a precision-controlled charge pump. This combination enables ultra-fine step sizes, low spurious products, and fast frequency hopping times.
Key Specifications
| Parameter | Value |
|---|---|
| RF Frequency Ranges | 795 - 945 MHz, 1590 - 1890 MHz, 3180 - 3780 MHz |
| Phase Noise | -111 dBc/Hz (typical at 30 kHz offset) |
| Figure of Merit (FOM) | -227 dBc/Hz |
| RMS Jitter | < 180 fs |
| Step Size | 24-bit, 3 Hz (typical) |
| Package Type | 40 Lead 6x6 mm SMT Package |
| Operating Temperature | -40°C to +85°C |
| Storage Temperature | -65°C to 125°C |
| Maximum Junction Temperature | 150°C |
Key Features
- Tri-band RF output with frequency ranges of 795 - 945 MHz, 1590 - 1890 MHz, and 3180 - 3780 MHz.
- Ultra-low phase noise and low spurious products.
- Advanced delta-sigma modulator design for ultra-fine step sizes.
- Cycle slip prevention (CSP) technology for faster frequency hopping times.
- Built-in digital self-test capability.
- Low noise digital Phase Detector (PD) and precision-controlled charge pump.
- Autocalibration subsystem for low voltage VCO tuning.
Applications
- Cellular/4G Infrastructure
- Repeaters and Femtocells
- Communications Test Equipment
- CATV Equipment
- Phased Array Applications
- DDS Replacement
Q & A
- What is the HMC838LP6CETR?
The HMC838LP6CETR is a Fractional-N Phase-Locked-Loop (PLL) with an integrated Voltage Controlled Oscillator (VCO) from Analog Devices Inc.
- What are the RF frequency ranges of the HMC838LP6CETR?
The device operates in three frequency ranges: 795 - 945 MHz, 1590 - 1890 MHz, and 3180 - 3780 MHz.
- What is the phase noise performance of the HMC838LP6CETR?
The phase noise is typically -111 dBc/Hz at a 30 kHz offset.
- What is the step size resolution of the HMC838LP6CETR?
The step size resolution is 24-bit, with a typical resolution of 3 Hz.
- What is the package type of the HMC838LP6CETR?
The device is packaged in a 40 Lead 6x6 mm SMT Package.
- What are the operating temperature ranges for the HMC838LP6CETR?
The operating temperature range is -40°C to +85°C.
- What are some typical applications of the HMC838LP6CETR?
Typical applications include cellular/4G infrastructure, repeaters and femtocells, communications test equipment, CATV equipment, phased array applications, and DDS replacement.
- Does the HMC838LP6CETR have built-in self-test capabilities?
Yes, the device includes built-in digital self-test capabilities.
- What technology is used to prevent cycle slips in the HMC838LP6CETR?
The device uses cycle slip prevention (CSP) technology.
- What is the maximum junction temperature for the HMC838LP6CETR?
The maximum junction temperature is 150°C.
