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GP520A - Programmable Analog Signal Processor

Description

The GP520A is a programmable analog signal path IC designed for use in hearing instruments.

The GP520A’s programmable parameters are adjusted by external programming currents, such as generated by the GP521.

The GP520A provides a 2.5 µ A reference current for use by the GP521.

Features

  • programmable parameters - gain - low pass filter - high pass filter - AGC threshold - release time - MPO - receiver bias voltage Principle features of the preamp are the input impedance 100 k Ω and a gain of 14 dB. The programmable filter block is composed of a low pass and high pass filter which generates a range of high and low pass corner frequencies. Although the control current to this block varies linearly, linear to logarithmic conversion is performed internally in order to adj.

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Datasheet preview – GP520A

Datasheet Details

Part number GP520A
Manufacturer Gennum
File Size 175.96 KB
Description Programmable Analog Signal Processor
Datasheet download datasheet GP520A Datasheet
Additional preview pages of the GP520A datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com GENNUM C␣ ␣ O␣ ␣ R␣ ␣ P␣ ␣ O␣ ␣ R␣ ␣ A␣ ␣ T␣ ␣ I␣ ␣ O␣ ␣ N Programmable Analog Signal Processor GP520A - DATA SHEET FEATURES • programmable parameters - gain - low pass filter - high pass filter - AGC threshold - release time - MPO - receiver bias voltage Principle features of the preamp are the input impedance 100 k Ω and a gain of 14 dB. The programmable filter block is composed of a low pass and high pass filter which generates a range of high and low pass corner frequencies. Although the control current to this block varies linearly, linear to logarithmic conversion is performed internally in order to adjust the corner frequencies logarithmically. Both filters feature a 12 dB/octave rolloff and unity gain. The filters are followed by an AGC block.
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