LNBP21PD

Product Overview

Category: Integrated Circuit (IC)

Use: LNBP21PD is a low-noise block downconverter (LNB) power doubler designed for satellite communication systems. It amplifies the received signals from the satellite dish and converts them to a lower frequency for further processing.

Characteristics: - Low noise figure - High linearity - Wide operating frequency range - Compact size - Low power consumption

Package: LNBP21PD is available in a small outline package (SOP) with 8 pins.

Essence: LNBP21PD is an essential component in satellite communication systems as it ensures optimal signal reception and conversion.

Packaging/Quantity: LNBP21PD is typically sold in reels containing 250 units per reel.

Specifications

• Operating Frequency Range: 950 MHz to 2150 MHz
• Supply Voltage: 11 V to 14 V
• Current Consumption: 25 mA (typical)
• Gain: 20 dB (typical)
• Noise Figure: 0.6 dB (typical)
• Output Power at 1 dB Compression Point: 0 dBm (typical)
• Input/Output Impedance: 75 Ohms

Detailed Pin Configuration

LNBP21PD features the following pin configuration:

1. VCC: Supply voltage input
2. GND: Ground connection
3. IF_OUT: Intermediate frequency output
4. IF_IN: Intermediate frequency input
5. VREF: Reference voltage input
6. AGC: Automatic gain control input
7. TONE: Tone detection output
8. VSEL: Voltage selection input

Functional Features

1. Low Noise Figure: LNBP21PD exhibits a low noise figure, ensuring minimal degradation of the received satellite signals.
2. High Linearity: The IC offers high linearity, enabling accurate signal conversion without distortion.
3. Wide Operating Frequency Range: LNBP21PD supports a wide frequency range, making it compatible with various satellite communication systems.
4. Compact Size: The small outline package allows for space-efficient integration into satellite receiver equipment.
5. Low Power Consumption: LNBP21PD consumes low power, contributing to energy efficiency in satellite communication systems.

Advantages and Disadvantages

Advantages: - Excellent noise performance - High linearity for accurate signal conversion - Wide frequency range compatibility - Compact size for easy integration - Low power consumption for energy efficiency

Disadvantages: - Limited output power capability - Requires external voltage selection input

Working Principles

LNBP21PD operates based on the principle of amplifying and converting satellite signals. It receives the weak signals from the satellite dish through the IFIN pin. The received signals are amplified while maintaining low noise and high linearity. The amplified signals are then downconverted to an intermediate frequency (IF) and provided at the IFOUT pin for further processing.

The AGC pin allows for automatic gain control, ensuring optimal signal strength. The TONE pin provides tone detection output, which can be utilized for specific system functionalities. The VSEL pin enables voltage selection for different operating modes.

Detailed Application Field Plans

LNBP21PD finds extensive application in satellite communication systems, including: 1. Direct-to-Home (DTH) satellite TV receivers 2. VSAT (Very Small Aperture Terminal) systems 3. Satellite internet modems 4. Satellite radio receivers 5. Earth observation systems

Detailed and Complete Alternative Models

1. LNBP22PD: Similar to LNBP21PD but with enhanced gain and lower noise figure.
2. LNBP23PD: Higher output power capability compared to LNBP21PD.
3. LNBP24PD: Offers additional features such as built-in tone generation and voltage selection.

These alternative models provide flexibility in choosing the most suitable IC based on specific system requirements.

In conclusion, LNBP21PD is a highly reliable and efficient low-noise block downconverter power doubler for satellite communication systems. Its excellent noise performance, high linearity, wide frequency range compatibility, compact size, and low power consumption make it an ideal choice for various applications in the field.