LNBs supply and control IC with step-up and I2C interface The LNBH23 is a low-noise block downconverter (LNB) manufactured by STMicroelectronics (STM). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:
### **Specifications:**
- **Input Frequency Range:** 10.7 GHz to 12.75 GHz
- **LO Frequency:** 9.75 GHz (Low Band) / 10.6 GHz (High Band)
- **Output Frequency Range:** 950 MHz to 2150 MHz
- **Noise Figure:** 0.7 dB (typical)
- **Gain:** 55 dB (typical)
- **Local Oscillator Phase Noise:** -75 dBc/Hz @ 10 kHz
- **Supply Voltage:** 11.5 V to 14 V (Vertical Polarization) / 16 V to 19 V (Horizontal Polarization)
- **Current Consumption:** 150 mA (typical)
- **Operating Temperature Range:** -40°C to +85°C
### **Descriptions:**
- The LNBH23 is a single-chip LNB designed for satellite TV reception.
- It integrates a low-noise amplifier (LNA), mixer, local oscillator (LO), and IF amplifier in a single package.
- It supports dual-band operation (low and high bands) with automatic band switching.
- The device is compatible with DiSEqC (Digital Satellite Equipment Control) standards for polarization and band selection.
### **Features:**
- **Integrated Design:** Combines LNA, mixer, LO, and IF amplifier in one chip.
- **Low Noise Figure:** Ensures high signal quality.
- **Wide Input Frequency Range:** Covers Ku-band satellite frequencies.
- **Dual-Band Operation:** Supports both low (10.7–11.7 GHz) and high (11.7–12.75 GHz) bands.
- **Polarization Switching:** Supports vertical and horizontal polarization via voltage control.
- **DiSEqC Compatibility:** Allows remote control of LNB functions.
- **Robust Performance:** Operates reliably in harsh environmental conditions.
This information is based on the official datasheet and product documentation from STMicroelectronics.
