GXSC Amplifier Replacement FW1109 for TDD or FDD Systems

FDD (Frequency Division Duplex) and TDD (Time Division Duplex) are two distinct duplex modes in mobile communication technology, differing in their functions, principles, and characteristics. FDD achieves bidirectional signal transmission through frequency division, featuring high efficiency and strong anti-interference capabilities, while TDD accomplishes bidirectional signal transmission via time division, offering flexibility and high spectrum utilization efficiency.

The GXSC amplifier is specifically designed for TDD/FDD systems, manufactured using GaAs pHEMT technology. It features low noise and operates within a frequency range of 0.5GHz to 6GHz, offering ultra-wideband coverage that essentially encompasses current mainstream communication bands such as IoT, mobile communications, 3G/4G frequency bands, and 5GNR. Compared to traditional single-band amplifiers, the GXSC amplifier eliminates the need for multi-chip amplification by enabling multi-band signal amplification with a single chip.

The GXSC integrates on-chip input/output matching circuits, featuring industry-leading noise figures and high linearity, making it highly suitable for use as a first-stage low-noise amplifier. The GXSC amplifier incorporates Venable bias functionality, enabling its application in TDD scenarios, and offers an 8-pin 2x2mm DFN package.

GXSC Amplifier Product Features:

8-pin 2x2 mm DFN package

Operating frequency: 0.5 GHz to 6 GHz

Noise Figure NF ≤ 0.85dB (0.5GHz to 5GHz)

Gain >20dB (0.5GHz to 5GHz)

Output third-order intercept point OIP3 > 33.5 dBm @ 70 mA current, 2.6 GHz

Shut-off mode pin, 1.8V TTL logic

Supply voltage: 3V to 5V; no -Vgg required

Maintain a closed state under high input power drive

Unconditional stability

Replace FW1109