LT5558 (3)
The LT5558 is available from Analog Devices at Xecor. Designed for high-performance wireless applications, the LT5558 offers direct conversion from baseband to RF, high OIP3 of +22.4dBm at 900MHz, and low output noise floor at 20MHz offset. Available in a 16-WQFN exposed pad package, it is ideal for wireless infrastructure, GSM, EDGE, CDMA, CDMA2000, and other cellular systems. Whether used in RFID transmitters, microwave links, or image reject up-converters, this series ensures high linearity, low carrier leakage, and excellent image rejection for demanding applications. Xecor is an authorized distributor for Analog Devices. Please view our extensive selection of the LT5558 series below.
| Part Number | Description | Package | Inventory | Add To Bom |
|---|---|---|---|---|
| LT5558EUF#TRPBF | Quadrature Modulator with High Linearity Spanning 600MHz to 1100MHz | QFN-16 | 5,197 | |
| LT5558EUF#PBF | Direct 4x Rate Modulation/Demodulation System with High Linearity, Covering 600MHz to 1100MHz Range | QFN-16 | 7,095 | |
| LT5558EUF | 558EUF modulator/demodulator | QFN-16 | 5,516 |
Key Featrues
High OIP3 of +22.4dBm at 900MHz: This feature ensures excellent linearity, reducing distortion in high-performance wireless applications such as GSM, EDGE, and CDMA. It enhances signal clarity and reliability, making it ideal for infrastructure and communication systems.
Low Output Noise Floor at 20MHz Offset: With a noise floor as low as -158dBm/Hz (no RF) and -152.7dBm/Hz at 4dBm output, this minimizes interference and improves signal-to-noise ratio, crucial for maintaining high-quality communication in crowded frequency bands.
High Image Rejection of -49dBc at 900MHz: This feature significantly reduces unwanted image signals, ensuring cleaner RF output and improving the efficiency of upconverting mixers and direct modulation applications.
Integrated LO Buffer and Quadrature Phase Generator: Simplifies system design by eliminating the need for external components, reducing board space and cost while ensuring precise LO signal generation for accurate modulation.
50Ω AC-Coupled Single-Ended LO and RF Ports: Provides easy integration with standard RF systems, ensuring compatibility and reducing design complexity, particularly in surface-mount applications.
Low Output Noise Floor at 20MHz Offset: With a noise floor as low as -158dBm/Hz (no RF) and -152.7dBm/Hz at 4dBm output, this minimizes interference and improves signal-to-noise ratio, crucial for maintaining high-quality communication in crowded frequency bands.
High Image Rejection of -49dBc at 900MHz: This feature significantly reduces unwanted image signals, ensuring cleaner RF output and improving the efficiency of upconverting mixers and direct modulation applications.
Integrated LO Buffer and Quadrature Phase Generator: Simplifies system design by eliminating the need for external components, reducing board space and cost while ensuring precise LO signal generation for accurate modulation.
50Ω AC-Coupled Single-Ended LO and RF Ports: Provides easy integration with standard RF systems, ensuring compatibility and reducing design complexity, particularly in surface-mount applications.
Applications
RFID Single-Sideband Transmitter: The LT5558 is ideal for RFID single-sideband transmitters, providing high linearity and low noise performance. Its direct I/Q modulation capability ensures efficient signal transmission, making it suitable for RFID systems in logistics, inventory management, and access control applications.
Infrastructure Transmitter for Cellular and ISM Bands: The LT5558 excels in infrastructure transmitters for cellular and ISM bands, offering high OIP3 and low carrier leakage. Its integrated LO buffer and quadrature phase generator ensure reliable performance in wireless infrastructure, supporting GSM, EDGE, CDMA, and other communication standards.
Image Reject Up-Converter for Cellular Bands: The LT5558 is well-suited for image reject up-converters in cellular bands, delivering high image rejection and low output noise floor. Its ability to handle 90° phase-shifted signals makes it ideal for applications requiring precise frequency conversion in cellular base stations and repeaters.
Low-Noise Variable Phase-Shifter for Local Oscillator Signals: The LT5558 is perfect for low-noise variable phase-shifters in local oscillator signals ranging from 600MHz to 1100MHz. Its high impedance baseband interface and integrated LO buffer ensure accurate phase control, making it suitable for advanced RF systems in radar, satellite communications, and microwave links.
Infrastructure Transmitter for Cellular and ISM Bands: The LT5558 excels in infrastructure transmitters for cellular and ISM bands, offering high OIP3 and low carrier leakage. Its integrated LO buffer and quadrature phase generator ensure reliable performance in wireless infrastructure, supporting GSM, EDGE, CDMA, and other communication standards.
Image Reject Up-Converter for Cellular Bands: The LT5558 is well-suited for image reject up-converters in cellular bands, delivering high image rejection and low output noise floor. Its ability to handle 90° phase-shifted signals makes it ideal for applications requiring precise frequency conversion in cellular base stations and repeaters.
Low-Noise Variable Phase-Shifter for Local Oscillator Signals: The LT5558 is perfect for low-noise variable phase-shifters in local oscillator signals ranging from 600MHz to 1100MHz. Its high impedance baseband interface and integrated LO buffer ensure accurate phase control, making it suitable for advanced RF systems in radar, satellite communications, and microwave links.
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