Overview
The HMC1120LP4ETR, produced by Analog Devices Inc., is a highly advanced RMS power detector and envelope tracker designed for precise measurement and control applications. This component integrates an RMS detector core with a high bandwidth envelope detector, making it ideal for detecting broadband and high crest factor RF signals commonly used in GSM, WCDMA, and LTE systems. The device operates over a frequency range of DC to 3.9 GHz and features a temperature-compensated, linear-in-dB output of the average RF power. The envelope detector provides an accurate voltage output proportional to the amplitude envelope of the RF input signal, supporting modulation bandwidths up to 150 MHz.
Key Specifications
| Parameters / Models | HMC1120LP4ETR |
|---|---|
| Frequency Response RF (max), Hz | 3.9 GHz |
| Input Dynamic Range (typ), dB | 72 dB |
| Operating Supply Voltage (typ), V | 3.3 V |
| Operating Temperature Range, °C | -40 to 85 |
| Temperature Drift (typ), dB | 0.5 dB |
| Package / Case | 24-Lead QFN (4mm x 4mm w/ EP) |
| RoHS Compliance | Compliant |
Key Features
- High bandwidth envelope detection up to 150 MHz, ideal for broadband and high crest factor RF signals.
- Digitally programmable integration bandwidth via input pins SCI1-4, allowing dynamic setting of operation bandwidth.
- Temperature-compensated, linear-in-dB output of the average RF power, independent of the modulation scheme.
- Internal op-amp at the RMS output stage for slope and intercept adjustments, supporting a wide range of applications.
- Power-down mode and envelope tracking power-down mode for efficient operation).
Applications
- Log to Root-Mean-Square (RMS) conversion).
- Tx/Rx Signal Strength Indication (TSSI/RSSI)).
- RF Power Amplifier Efficiency Control).
- Receiver Automatic Gain Control).
- Transmitter Power Control).
- Envelope Tracking and PA Linearization).
- Modulation scheme selection and BER performance analysis).
Q & A
- What is the frequency range of the HMC1120LP4ETR? The HMC1120LP4ETR operates over a frequency range of DC to 3.9 GHz.
- What is the input dynamic range of the HMC1120LP4ETR? The input dynamic range is typically 72 dB.
- What is the operating temperature range of the HMC1120LP4ETR? The operating temperature range is -40 to 85°C.
- Is the HMC1120LP4ETR RoHS compliant? Yes, the HMC1120LP4ETR is RoHS compliant.
- What is the package type of the HMC1120LP4ETR? The package type is a 24-Lead QFN (4mm x 4mm w/ EP).
- What are the typical applications of the HMC1120LP4ETR? Typical applications include log to RMS conversion, Tx/Rx signal strength indication, RF power amplifier efficiency control, and envelope tracking.
- Can the integration bandwidth of the HMC1120LP4ETR be programmed? Yes, the integration bandwidth is digitally programmable via input pins SCI1-4.
- What is the maximum operating supply voltage of the HMC1120LP4ETR? The maximum operating supply voltage is 3.45 V, and the minimum is 3.15 V.
- How does the HMC1120LP4ETR handle temperature drift? The HMC1120LP4ETR features temperature compensation circuits, which stabilize output accuracy over the entire operating temperature range.
- What is the significance of the envelope detector in the HMC1120LP4ETR? The envelope detector provides an accurate voltage output proportional to the amplitude envelope of the RF input signal, supporting modulation bandwidths up to 150 MHz.
