Product details

Frequency (Min) (MHz) 350 Frequency (Max) (MHz) 4000 I/Q input common-mode voltage (Typ) 3.3 PLL/VCO No P1dB (Typ) (dBm) 9 Output IP3 (Typ) (dBm) 23 Noise floor (Typ) (dBm/Hz) -163 Unadjusted carrier suppression (Typ) (dBm) -40 Unadjusted sideband suppression (Typ) (dBc) -40 Rating Catalog
Frequency (Min) (MHz) 350 Frequency (Max) (MHz) 4000 I/Q input common-mode voltage (Typ) 3.3 PLL/VCO No P1dB (Typ) (dBm) 9 Output IP3 (Typ) (dBm) 23 Noise floor (Typ) (dBm/Hz) -163 Unadjusted carrier suppression (Typ) (dBm) -40 Unadjusted sideband suppression (Typ) (dBc) -40 Rating Catalog
VQFN (RGE) 24 16 mm² 4 x 4
  • 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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Type Title Date
* Data sheet 0.35-GHz to 4-GHz Quadrature Modulators datasheet (Rev. J) 10 May 2011
Technical article Can a clock generator act as a jitter cleaner? 23 Mar 2017
Technical article Don’t let bad reference signals destroy the phase noise in your PLL/synthesizer 10 Jan 2017
Technical article A survival guide to scaling your PLL loop filter design 22 Nov 2016
Technical article What to do when your PLL does not lock 12 Jul 2016
Application note Baseband I/Q Trace Mismatch Degrades Sideband Suppression of RF I/Q Modulation 21 Sep 2012
Application note TRF372017 Noise Analysis (Rev. A) 07 Oct 2011
Application note LO Harmonic Effect of I/Q Modulator Sideband Suppression 10 May 2010
Application note Passive Terminations for Current Output DACs 10 Nov 2008
Application note Gain Optimization 16 Oct 2008
EVM User's guide TRF370x EVM User's Guide 16 Oct 2008
Application note Superior ACPR Performance of TI’s TRF3703xx Family 07 Oct 2008
Application note TRF3703xx Quadrature Modulators Improve Spurious Emission and Save Power in TDD 07 Oct 2008
More literature TRF3703: High-performance, low-noise quadrature modulator (Rev. C) 03 Sep 2008
EVM User's guide TRF3703 Quadrature Modulator EVM (Rev. B) 11 Aug 2008
Application note Optimizing Carrier & Sideband Suppression 10 Aug 2005

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