AD8346 2.5 GHz Direct Conversion Quadrature Modulator

The AD8346 is a silicon I / Q quadrature modulator, designed to be used from 800 MHz to 2.5 GHz. The part is optimized for lower power applications, yet provides a very low noise floor and high output power for the given supply current.

The AD8346 requires only –10 dBm LO drive level and provides a fully specified 50 ohm buffered output.

The part provides excellent amplitude and phase balance and sideband suppression specifications to enable higher order / capacity QAM modulated radios.

Additionally the AD8346 has been tested and provides –72 dBc ACPR when used in a direct up-conversion CDMA IS95 modulator.

The AD8346 is supplied in 16-lead Thin Shrunk Small Outline (TSSOP) package, and fully specified over –40 to 85 degC temperature range.

Availability Samples part number (AD8346ARU) and an evaluation board, part number (AD8346-EVAL) are available

Other Modulator / Demodulator Products

AD8345 - 250 MHz - 1 GHz RF / IF Quadrature Modulator

AD8347 – 800 MHz - 2.7 GHz RF / IF Quadrature Demodulator

AD8349 – 800 MHz - 2.7 GHz Direct Up-Conversion Quadrature Modulator

Features and Benefits
  • Output Frequency range 800 MHz to 2.5 GHz
  • I/Q Base-band Frequency range dc – 70 MHz
  • Output Power –3 dBm P1 dB
  • Noise Floor –147 dBm/Hz
  • Quadrature Phase Accuracy 1 deg rms
  • Amplitude Balance 0.2 dB
  • Low Power with Power Down Function
  • Single 2.7 V – 5.5 V Supply
  • Pin compatible with AD8345 / AD8349
RF & Microwave
Data Sheets
Documentnote
AD8346: 0.8 GHz-2.5 GHz Quadrature Modulator Data Sheet (Rev. A)PDF 397 kB
Application Notes
Documentnote
AN-1039: Correcting Imperfections in IQ Modulators to Improve RF Signal Fidelity (Rev. 0)PDF 202 kB
AN-924: Digital Quadrature Modulator Gain (Rev. A)PDF 105 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD8346ARU Production16 ld TSSOPOTH 96-40 to 85C5.45.15N
AD8346ARU-REEL7 Production16 ld TSSOPREEL 1000-40 to 85C05.15N
AD8346ARUZ Production16 ld TSSOPOTH 96-40 to 85C4.684.45Y
AD8346ARUZ-REEL Production16 ld TSSOPREEL 2500-40 to 85C04.45Y
AD8346ARUZ-REEL7 Production16 ld TSSOPREEL 1000-40 to 85C04.45Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
AD8346-EVALZEvaluation Board100.19Y
Reference Materials
AD8346: 0.8 GHz-2.5 GHz Quadrature Modulator Data Sheet  (Rev A, 06/2005) AD8346
AD8346: 0.8 GHz-2.5 GHz Quadrature Modulator Data Sheet (Rev. A) ad8346
AN-1039: Correcting Imperfections in IQ Modulators to Improve RF Signal Fidelity (Rev. 0) ad8346
AN-924: Digital Quadrature Modulator Gain (Rev. A) ad9856
AN-1039: 校正IQ调制器缺陷，提高射频信号保真度 (Rev. 0) ad8346
AN-924: 数字正交调制器增益 (Rev. A) ad9856
RF Source Booklet adf9010
Detecting Fast RF Bursts using Log Amps ad640
Single Chip Realizes Direct-Conversion Rx ad8346
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