AD8347 800 MHz TO 2.7 GHz RF / IF Quadrature Demodulator

AD8345 - 250MHz - 1GHz RF/IF Modulator AD8346 - 2.5 GHz Direct Conversion Quadrature Modulator

The AD8347 is a single chip, broadband 2.7GHz quadrature demodulator. The part integrates 65dB linear-in-dB AGC, divided between RF input and at the baseband outputs following the mixers. The In-phase and Quadrature signals are brought out off chip for filtering prior to the final output amplifier stage. The final output amplifiers allow the user to adjust the DC common mode level to provide a direct interface into a dual channel I/Q ADC.

With 65dB linear-in-dB gain control, 50MHz demodulation bandwidth and excellent phase and amplitude balance the AD8347 is ideally suited direct conversion radios in point to point and point to multipoint broadband wireless applications.

The AD8347 is fabricated on an advanced bipolar process, operating on a single 3 or 5 volt supply, packaged in space saving 28 lead thin shrunk small outline (TSSOP) package and fully specified over the -40 to +85 C temperature range.

Availability

Samples and an evaluation boards part number AD8347-EVAL are available to order.

Other Modulator/Demodulator products:

Features and Benefits
  • 800MHz - 2.7GHz RF Input Range
  • Integrated 65dB AGC Amplifiers
  • Integrated Baseband Level Detectors
  • Integrated Baseband Output Amplifiers
  • Single Supply 2.7 to 5.5V with Power Down
  • Quadrature Phase Accuracy 3 degree
  • Amplitude Balance 0.3dB
  • Third Order Intercept IIP3 +12dB
  • Noise Figure 11dB
  • Low LO Drive -10dBm
RF & Microwave
Data Sheets
Documentnote
AD8347: 0.8 GHz to 2.7 GHz Direct Conversion Quadrature Demodulator Data Sheet (Rev. A)PDF 623 kB
Application Notes
Documentnote
AN-924: Digital Quadrature Modulator Gain (Rev. A)PDF 105 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD8347ARU Production28 ld TSSOP (4.4mm)OTH 50-40 to 85C7.316.76N
AD8347ARU-REEL7 Production28 ld TSSOP (4.4mm)REEL 1000-40 to 85C06.76N
AD8347ARUZ Production28 ld TSSOP (4.4mm)OTH 50-40 to 85C6.335.85Y
AD8347ARUZ-REEL7 Production28 ld TSSOP (4.4mm)REEL 1000-40 to 85C05.85Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
AD8347-EVALZEvaluation Board200Y
Reference Materials
AD8347: 0.8 GHz to 2.7 GHz Direct Conversion Quadrature Demodulator Data Sheet (Rev A, 10/2005) AD8347
AD8347: 0.8 GHz to 2.7 GHz Direct Conversion Quadrature Demodulator Data Sheet (Rev. A) ad8347
AN-924: Digital Quadrature Modulator Gain (Rev. A) ad9856
AN-924: 数字正交调制器增益 (Rev. A) ad9856
RF Source Booklet adf9010
Single Chip Realizes Direct-Conversion Rx ad8346