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FX019

Features: 4 Digitally Controlled Amplifiers15 Gain/Attenuation Steps3 Amplifiers, with a ± 3dB Range in 0.43dB Steps1 'Volume' Amplifier, with a ± 14dB Range in 2dB Steps8-Bit Serial Data ControlOutput Mute FunctionAudio and Data Gain Control ApplicationsTelecoms, Radio and Industrial Applications...

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SeekIC No. : 004345665 Detail

FX019: Features: 4 Digitally Controlled Amplifiers15 Gain/Attenuation Steps3 Amplifiers, with a ± 3dB Range in 0.43dB Steps1 'Volume' Amplifier, with a ± 14dB Range in 2dB Steps8-Bit Serial Data ControlOut...

FX019 Data Sheet

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Part Number:
FX019
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/27

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Product Details

Description



Features:

4 Digitally Controlled Amplifiers
15 Gain/Attenuation Steps
3 Amplifiers, with a ± 3dB Range in 0.43dB Steps
1 'Volume' Amplifier, with a ± 14dB Range in 2dB Steps
8-Bit Serial Data Control
Output Mute Function
Audio and Data Gain Control Applications
Telecoms, Radio and Industrial Applications




Application

(i) Control, adjustment and set-up of communications equipment by an Intelligent ATE without manual intervention eg. Deviation, Microphone and L/S Levels, Rx Audio Level etc.

(ii) Automatic Dynamic Compensation of drift caused by variations in temperature, linearity, etc.

(iii)Fully automated servicing and re-alignment.

The FX019 is a low-power, single 5-volt CMOS device available in plastic DIL and Small Outline (S.O.I.C.) SMD package versions.




Specifications

Absolute Maximum Ratings
Exceeding the maximum rating can result in device damage. Operation of the device outside the operating limits is not implied.
Supply voltage -0.3 to 7.0V
Input voltage at any pin (ref VSS = 0V) -0.3 to (VDD + 0.3V)
Sink/source current (supply pins) +/- 30mA
(other pins)+/- 20mA
Total device dissipation @ TAMB 25°C800mW Max.
Derating 10mW/°C
Operating temperature range: FX019DW/P -40°C to +85°C (plastic)
Storage temperature range: FX019DW/P -40°C to +85°C (plastic)




Description

The FX019 Digitally Adjustable Amplifier Array is available to replace trimmer potentiometers and volume controls in Cellular, PMR, Telephony and Communications applications where d.c., voice or data signals need adjustment.

The FX019 is a single-chip LSI consisting of four digitally controlled amplifier stages, each with 15 distinct gain/attenuation steps. Control of each individual amplifier is by an 8-bit serial data stream. Three of the amplifier stages offer a +/-3dB range in steps of 0.43dB, whilst the remaining amplifier offers a +/-14dB range in steps of 2dB, and is suggested for volume control applications. Each amplifier includes a 16th 'Off' state which when applied, mutes the output audio from that channel. This array uses a Chip Select input to select one of two FX019s in a system.

FX019 replaces the need for manual trimming of audible signals by using the host microprocessor to digitally control the set-up of all audio levels during development, production/calibration and operation.






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