ATF-331M4-TR1

Overview

The Broadcom ATF-331M4-TR1 is a low noise pseudomorphic HEMT housed in a MiniPak leadless package. It operates within the 450 MHz to 10 GHz frequency range with a typical noise figure of 0.6 dB at 2 GHz under 4 V and 60 mA bias conditions. Associated gain reaches 15 dB, while output power at 1 dB compression is 19 dBm and the third-order intercept point is 31 dBm. The device features a 1600 micron gate width and supports tape-and-reel packaging for automated assembly.

Feature Summary

• High linearity combined with ultra-low noise figure suitable for sensitive receiver front ends
• Miniature leadless package design ideal for space-constrained hybrid modules
• Excellent uniformity in product specifications across manufacturing batches

Applications

• Tower mounted amplifiers and low noise amplifiers for GSM/TDMA/CDMA base stations
• Low noise amplifiers for Wireless LAN, WLL/RLL, MMDS, and wireless data infrastructures
• General purpose discrete PHEMT applications requiring super low noise figure

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm container type and quantity. The -TR1 suffix indicates a 7-inch reel containing 3000 devices. Ensure compatibility with standard surface mount reflow profiles and handle components according to electrostatic discharge precautions during storage and assembly processes.

Selection Notes

Consider the ATF-34143 if higher gain performance is required, particularly for frequencies at 1.8 GHz and above. Evaluate the trade-off between optimal noise matching and achievable production test matches when designing circuits. Account for circuit losses in matching networks as they directly impact the overall amplifier noise figure relative to the device Fmin.

Part Context

This component belongs to the Avago Technologies pHEMT family designed for high linearity and low noise operations. It utilizes a miniature leadless package measuring 1.4 mm by 1.2 mm by 0.7 mm. The device is optimized for first or second stage base station low noise amplifier designs where enhanced linearity and low noise figure are critical requirements.

Replacement Considerations

The ATF-34143 is documented as an alternative from the same PHEMT FET family offering higher gain performance, specifically for frequencies at 1.8 GHz and up.