Overview
The HMC1120LP4E is a high-performance RMS power detector and envelope tracker produced by Analog Devices Inc. This component is designed to measure the actual RMS power of RF signals and provide an accurate voltage output that is linearly proportional to the amplitude envelope of the input signal. It is particularly suited for applications requiring high bandwidth envelope detection, such as in GSM, WCDMA, and LTE systems. The device features a temperature-compensated, monotonic RMS output and an integrated high bandwidth envelope detector capable of handling modulation bandwidths up to 150 MHz.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Response (RF max) | 3.9 GHz |
| Input Dynamic Range (typ) | 72 dB |
| Supply Voltage (Vs+) | 3.15 V to 3.45 V |
| Supply Current (no input power, EN = VCC, ETDISABLE = GND) | 77 mA to 90 mA |
| Supply Current (with 0 dBm input power) | 84 mA to 100 mA |
| Standby Mode Supply Current (EN = GND, ETDISABLE = VCC) | 7 mA to 12 mA |
| Operating Temperature Range | -40°C to 85°C |
| Temperature Drift (typ) | 0.5 dB |
| Package Type | 24-Lead QFN (4mm x 4mm w/ EP) |
| RoHS Compliance | Compliant |
Key Features
- Digitally programmable integration bandwidth via input pins SCI1-4, allowing dynamic setting of operation bandwidth and detection of different types of modulations.
- Integrated high bandwidth envelope detector with modulation bandwidths up to 150 MHz.
- Temperature-compensated, monotonic RMS output linear-in-dB representation of real RF signal power.
- Internal op-amp at the RMS output stage for slope and intercept adjustments.
- Power-down mode and envelope tracking power-down mode for efficient operation.
- Ultra-fast excessive RF power protection, PA linearization, and efficiency enhancing envelope-tracking PA implementations.
Applications
- Log –> 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.
- GSM, WCDMA, and LTE systems.
Q & A
- What is the primary function of the HMC1120LP4E?
The HMC1120LP4E is an RMS power detector with an integrated high bandwidth envelope detector, designed to measure the actual RMS power of RF signals and provide an accurate voltage output proportional to the amplitude envelope of the input signal.
- What is the frequency response range of the HMC1120LP4E?
The frequency response range of the HMC1120LP4E is up to 3.9 GHz.
- What is the input dynamic range of the HMC1120LP4E?
The input dynamic range of the HMC1120LP4E is typically 72 dB.
- How is the integration bandwidth of the HMC1120LP4E controlled?
The integration bandwidth of the HMC1120LP4E is digitally programmable via input pins SCI1-4..
- What are some common applications of the HMC1120LP4E?
Common applications include Log –> Root-Mean-Square (RMS) Conversion, Tx/Rx Signal Strength Indication (TSSI/RSSI), RF Power Amplifier Efficiency Control, Receiver Automatic Gain Control, Transmitter Power Control, and Envelope Tracking and PA Linearization..
- What is the operating temperature range of the HMC1120LP4E?
The operating temperature range of the HMC1120LP4E is -40°C to 85°C.
- Is the HMC1120LP4E RoHS compliant?
Yes, the HMC1120LP4E is RoHS compliant.
- What type of package does the HMC1120LP4E come in?
The HMC1120LP4E comes in a 24-Lead QFN (4mm x 4mm w/ EP) package.
- How does the HMC1120LP4E support power efficiency in RF systems?
The HMC1120LP4E supports power efficiency through envelope tracking and PA linearization, allowing for more efficient RF power amplifier operations..
- Can the HMC1120LP4E be used for ultra-fast excessive RF power protection?
Yes, the instantaneous envelope output of the HMC1120LP4E can be used in ultra-fast excessive RF power protection systems..
