Product details

Frequency (min) (MHz) 350 Frequency (max) (MHz) 4000 I/Q input common-mode voltage (typ) (V) 1.5 PLL/VCO No P1dB (typ) (dBm) 9 OIP3 (typ) (dBm) 23 Noise floor (typ) (dBm/Hz) -163 Unadjusted carrier suppression (typ) (dBm) -40 Unadjusted sideband suppression (typ) (dBc) -40 Rating Catalog Operating temperature range (°C) -40 to 85
Frequency (min) (MHz) 350 Frequency (max) (MHz) 4000 I/Q input common-mode voltage (typ) (V) 1.5 PLL/VCO No P1dB (typ) (dBm) 9 OIP3 (typ) (dBm) 23 Noise floor (typ) (dBm/Hz) -163 Unadjusted carrier suppression (typ) (dBm) -40 Unadjusted sideband suppression (typ) (dBc) -40 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • 75-dBc Single-Carrier WCDMA ACPR at –11-dBm Channel Power
  • Low Noise Floor: –163 dBm/Hz
  • OIP3 of 23 dBm
  • P1dB of 9 dBm
  • Unadjusted Carrier Feedthrough of –40 dBm
  • Unadjusted Side-Band Suppression of –40 dBc
  • Single Supply: 4.5 V–5.5 V Operation
  • Silicon Germanium Technology
  • TRF370333 With 3.3-V CM at I, Q Baseband Inputs
  • TRF370315 With 1.5-V CM at I, Q Baseband Inputs
  • APPLICATIONS
    • Cellular Base Transceiver Station Transmit Channel
    • CDMA: IS95, UMTS, CDMA2000, TD-SCDMA
    • TDMA: GSM, IS-136, EDGE/UWC-136
    • Wireless Local Loop
    • Wireless MAN Wideband Transceivers

All other trademarks are the property of their respective owners

  • 75-dBc Single-Carrier WCDMA ACPR at –11-dBm Channel Power
  • Low Noise Floor: –163 dBm/Hz
  • OIP3 of 23 dBm
  • P1dB of 9 dBm
  • Unadjusted Carrier Feedthrough of –40 dBm
  • Unadjusted Side-Band Suppression of –40 dBc
  • Single Supply: 4.5 V–5.5 V Operation
  • Silicon Germanium Technology
  • TRF370333 With 3.3-V CM at I, Q Baseband Inputs
  • TRF370315 With 1.5-V CM at I, Q Baseband Inputs
  • APPLICATIONS
    • Cellular Base Transceiver Station Transmit Channel
    • CDMA: IS95, UMTS, CDMA2000, TD-SCDMA
    • TDMA: GSM, IS-136, EDGE/UWC-136
    • Wireless Local Loop
    • Wireless MAN Wideband Transceivers

All other trademarks are the property of their respective owners

The TRF370315 and TRF370333 are low-noise direct quadrature modulators, capable of converting complex modulated signals from baseband or IF directly up to RF. The TRF370315 and TRF370333 are ideal for high-performance direct RF modulation from 350 MHz up to 4 GHz. These modulators are implemented as a double-balanced mixer. The RF output block consists of a differential to single-ended converter and an RF amplifier capable of driving a single-ended 50-Ω load without any need of external components. The TRF370333 and TRF370315 devices have different common-mode voltage ratings at the I/Q baseband inputs. The TRF370315 requires a 1.5-V common-mode voltage, and the TRF370333 requires a 3.3-V common-mode voltage.

The TRF370315 and TRF370333 are low-noise direct quadrature modulators, capable of converting complex modulated signals from baseband or IF directly up to RF. The TRF370315 and TRF370333 are ideal for high-performance direct RF modulation from 350 MHz up to 4 GHz. These modulators are implemented as a double-balanced mixer. The RF output block consists of a differential to single-ended converter and an RF amplifier capable of driving a single-ended 50-Ω load without any need of external components. The TRF370333 and TRF370315 devices have different common-mode voltage ratings at the I/Q baseband inputs. The TRF370315 requires a 1.5-V common-mode voltage, and the TRF370333 requires a 3.3-V common-mode voltage.

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Technical documentation

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* Data sheet 0.35-GHz to 4-GHz Quadrature Modulators datasheet (Rev. J) May 10, 2011
Technical article Can a clock generator act as a jitter cleaner? PDF | HTML Mar 23, 2017
Technical article Don’t let bad reference signals destroy the phase noise in your PLL/synthesizer PDF | HTML Jan 10, 2017
Technical article A survival guide to scaling your PLL loop filter design PDF | HTML Nov 22, 2016
Technical article What to do when your PLL does not lock PDF | HTML Jul 12, 2016
Technical article Issues with jitter, phase noise, lock time or spurs? Check the loop-filter bandwid PDF | HTML Jun 6, 2016
Design guide Analog Interfacing Networks for DAC348x and Modulators (TIDA-00077) (Rev. A) Aug 14, 2013
Application note Baseband I/Q Trace Mismatch Degrades Sideband Suppression of RF I/Q Modulation Sep 21, 2012
Application note TSW3725: Modifying to use the TRF3705 for Performance and BOM Improvements Aug 24, 2012
Application note TRF372017 Noise Analysis (Rev. A) Oct 7, 2011
Application note LO Harmonic Effect of I/Q Modulator Sideband Suppression May 10, 2010
Application note Passive Terminations for Current Output DACs Nov 10, 2008
Application note Gain Optimization Oct 16, 2008
Application note Superior ACPR Performance of TI’s TRF3703xx Family Oct 7, 2008
Application note TRF3703xx Quadrature Modulators Improve Spurious Emission and Save Power in TDD Oct 7, 2008
Product overview TRF3703: High-performance, low-noise quadrature modulator (Rev. C) Sep 3, 2008
Application note Optimizing Carrier & Sideband Suppression Aug 10, 2005

Design & development

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Evaluation board

TRF3703-15EVM — TRF3703-15 Evaluation Module

User guide: PDF
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RF-CASCADE-CALC-TOOL — TI RF Cascade Calculator

A browser-based RF lineup analysis tool supporting up to 10 stages. Computes gain, NF, OIP3, OIP2, OP1dB, and derived metrics. Features dual-axis Plotly charts, P1dB saturation detection, and export to CSV
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Calculation tool

SLWC083 — DAC Interface Calculator

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Reference design

TIDA-00068 — Basestation Transceiver with DPD Feedback Path

The design is for a small cell base station development platform.  It provides two real receive paths, two complex transmit paths, and a shared real feedback path.  This design has macro basestation performance, but with small cell base station footprint.  The current design handles (...)

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VQFN (RGE) 24 Ultra Librarian

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