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F1370 RFD Block Diagram
F1370 Package Drawing

F1370

High-band DPD Demodulator with Integrated DSA and RF Switch

The IDT F1370 is a highly linear complex IF digital pre-distortion (DPD) demodulator with built-in digital step attenuator (DSA) and single-pole-double-throw switches (SP2Ts).  It receives the signal coming out of the PA so that the I&Q data at Baseband can be pre-distorted before being sent to the Tx DAC to counteract the distortion inherent in the downstream PA.  The signal coupled from the PA is adjusted via a DSA to a lower level and then sub-sampled at an IF frequency of ~200 MHz which necessitates the need for a highly linear demodulator to downmix to quadrature IF from the Transmit frequency.   By sampling IF_I and IF_Q independently and then digitally combining these signals, an effective doubling of the sample rate can be achieved.   Any distortion in this path will degrade the performance of the DPD algorithm.  By utilizing an ultra-linear demodulator with integrated DSA such as the IDT F1320, the ACLR and/or power consumption of the full Tx system can be improved significantly.

Features

  • Wide flat performance IF BW
  • Wide RF and LO BWs (~ 1.6 GHz)
  • Ideal for Multi-Carrier Systems
  • Drives ADC directly
  • Ultra linear +41 dBm IP3O
  • Low Noise Figure
  • Excellent ACLR performance
  • 200 Ω output impedance
  • Fully integrated DPD demodulator
  • 6x6 36 pin package
  • Standby Mode with Fast Recovery
  • ICC:  275 mA

Product Specification

Input Freq (MHz)Output Freq Range (MHz)Supply Voltage (V)Pkg. TypeLead Count (#)LO Injection SideOutput IP3 (dBm)Gain (dB)
1400.000000 - 2900.00000020.000000 - 550.0000004.75 - 5.25VFQFPN36High or Low41.0011.00

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
F1370NBGIActiveNBG36P1VFQFPN36IYesTrayCheck Availability
F1370NBGI8ActiveNBG36P1VFQFPN36IYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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F1370 Datasheet Rev4 Datasheet PDF 1.32 MB Jan 16, 2014
PCNs & PDNs
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PCN# : TB1602-01 Alternate Test Location for Select Devices Product Change Notice PDF 39 KB Mar 15, 2016
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PCN# : A1406-01R1 Add Alternate Assembly Product Change Notice PDF 35 KB Oct 14, 2015
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PCN# : A1406-01 Alternate Assembly Locations for Selective Package Product Change Notice PDF 33 KB Apr 6, 2015
Other
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IDT Products for Radio Applications 日本語 Product Brief PDF 4.65 MB Aug 12, 2015

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