آر اف (فرکانس رادیویی) و بی‌سیم مدولاتور آر اف

Product Attributes

Introduction

TRF37T05 is a low-noise direct quadrature modulator with excellent time-division duplex (TDD) performance. It enables direct conversion of complex modulated signals from baseband or IF to RF. TRF37T05 is a high-performance, high-linearity device optimized for upconversion with best-in-class performance across the 300MHz to 4GHz range. This modulator is implemented as a double-balanced mixer. The RF output block incorporates a differential-to-single-ended converter capable of driving a single-ended 50Ω load. TRF37T05 requires a 0.25V common-mode voltage for optimal linearity performance. TRF37T05 also features a fast power-down pin that can be used to reduce power dissipation while maintaining optimized modulated carrier feedthrough performance in TDD applications. TRF37T05 is available in an RGE-24 ultra-thin quad flat no-lead (VQFN) package.

Features

• Highly linear: Output IP3: 30dBm at 1850MHz
• Low output noise floor: -160dBm/Hz
• 78dBc single-carrier WCDMA ACPR at channel power of -10dBm
• Unadjusted carrier suppression: -40dBm
• Unadjusted sideband suppression: -45dBc
• Single supply: 3.3V operation
• 1-bit gain step control
• Fast power-up/power-down

Applications

• Cellular base station transmitter CDMA: IS95, UMTS, CDMA2000, TD-SCDMA
• LTE, TD-LTE
• TDMA: GSM, EDGE/UWC-136
• Multi-carrier GSM (MC-GSM)
• Wireless (metropolitan area network) broadband repeater