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F1240 - Block Diagram
IDTF1240 Package Diagram

F1240

Low-noise Dual IF VGA with FlatNoise™

The IDT F1240 IF VGA featuring FlatNoise™ technology improves system SNR, especially at lower gain settings. By keeping both IP3O & NF flat while gain is backed off, the system SNR is improved significantly under high level interferer conditions, especially when considering alias noise in an IF sampling receiver. The fast-settling, parallel mode gain step of 0.50 dB coupled with the excellent differential non-linearity allow for SNR to be maximized further by targeting the minimum necessary gain in small, accurate increments. The matched output does not require a terminating resistor, thus the gain and distortion performance are preserved when driving Bandpass Anti-Alias filters.

Features

  • Ideal for systems with high SNR requirements
  • 20 dB typical Maximum Gain
  • 31 dB gain control range
  • 6 bit control
  • 0.50 dB Gain Steps
  • Excellent Noise Figure ~ 4.0 dB
  • 5mm x 5mm 32 pin package
  • 200 ohm Differential Matched Input
  • 200 ohm Differential Matched Output
  • No termination resistor required
  • NF degrades < 2dB @ 10 dB reduced gain
  • 10 MHz – 500 MHz frequency range
  • Ultra-Linear: IP3O +47 dBm typical
  • Excellent 2nd Harmonic Rejection
  • Parallel / Serial Control
  • External current setting resistors
  • Very fast settling < 15 nsec
  • Individual Power Down Modes
  • Extremely low power consumption:  79 mA / Ch

Product Specification

Input Freq (MHz)Output Freq Range (MHz)Supply Voltage (V)Pkg. TypeLead Count (#)Output IP3 (dBm)Gain (dB)Gain Resolution (dB)
10.000000 - 500.00000010.000000 - 500.0000004.75 - 5.25VFQFPN3247.0020.000.50

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
F1240NBGIActiveNBG32P1VFQFPN32IYesTrayCheck Availability
F1240NBGI8ActiveNBG32P1VFQFPN32IYesReelCheck Availability

Documents

Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
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F1240NBGI Datasheet Datasheet PDF 1.53 MB Mar 31, 2012
Apps Notes & White Papers
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AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 2.91 MB Aug 31, 2015
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
show all (4)
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PCN# : Q1403-01 Datasheet change F1240NBGI Product Change Notice PDF 950 KB Apr 9, 2014
Other
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IDT Products for Radio Applications 日本語 Product Brief PDF 4.65 MB Aug 12, 2015

Software & Tools

Title Type Format File Size Datesort icon
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RF Digital Control Software Installer Software Tool ZIP 169.81 MB Aug 31, 2015

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