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Datasheet

TDA9901
(Product Specification)
14-Aug-08, 18 pages, 95 kB

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Wideband differential digital controlled variable gain amplifier

General description
Features
Products/packages
Chemical content
Pricing/ordering/availability
Samples
Applications
Block diagrams/pinning
Design support
Parametrics/similar products
Print/email

General description

The TDA9901 is a wideband, low-noise amplifier with differential inputs and outputs. The TDA9901 incorporates an Automatic Gain Control (AGC) function with digital control. The TDA9901 is optimized for fast switching between different gain settings, preserving small phase and amplitude error.

The TDA9901 presents an excellent combination of low noise and good linearity for a wide input frequency range. The TDA9901 is optimized for processing Input Frequency (IF) signals. It is also suited for many other applications as a general purpose digitally controlled variable gain amplifier.

The TDA9901 is able to operate from 4.75 V to 5.25 V supply for the analog part and from 3.0 V to 5.25 V for the digital part.

Features

  • 130 MHz, -3 dB small signal bandwidth
  • Digitally controlled gain
  • Transistor-Transistor Logic (TTL) and CMOS compatible digital inputs (3.3 V or 5 V)
  • TTL single-ended or differential clock input with Positive Emitter-Coupled Logic (PECL) compatibility
  • 24 dB gain control range
  • Four steps of 6 dB plus 6 dB fixed gain
  • 30 dB gain maximum
  • High impedance differential inputs
  • Low impedance differential inputs
  • High power supply rejection
  • 125 nV/√Hz output voltage noise density at 30 dB gain
  • Fast gain settling
  • Dual control modes: transparent or latched

Products/packages

Type numberNorth American Type numberOrdering code (12NC)Product statusPackagePackingMarkingChemical contentLeadfree conversion date
TDA9901TS/C3TDA9901TS/C3-T9352 766 28118Volume productionSOT266-1
(SSOP20)
Reel Pack, SMD, 13"Standard MarkingTDA9901TS/C3
Always Pb-free

Pricing/ordering/availability

Type numberOrdering code(12NC)Indicative price/unit($)RegionDistributorIn stockInventory dateBuy onlineSamples
TDA9901TS/C39352 766  28118       not available

Applications

  • Linear AGC systems
  • Wireless infrastructure
  • Fixed network
  • Instrumentation
  • Multipurpose amplifier
  • Driver for differential ADCs (e.g. ADC1206S040/055/070 and ADC1006055/070)

Block diagrams/pinning

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