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CD3269A Fiches technique(PDF) 7 Page - Texas Instruments

No de pièce CD3269A
Description  CD326x Audio Interface Transmitter for Specially Enabled Headsets
PDF  35 Pages
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Fabricant  TI2 [Texas Instruments]
Site Internet  https://www.ti.com
Logo TI2 - Texas Instruments

CD3269A Fiches technique(HTML) 7 Page - Texas Instruments

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6 Parameter Measurement Information
This section shows design schematics for select performance measurements.
6.1 eN-MIC Microphone Integrated Noise Measurement
VSHUNT
MIC
TONE
MICPWR
GND
REM
CD326x
20k
VMICBIAS
2.84V
1k
100nF
Meter
200pF
2.21k
100nF
VMIC must rise above 2.35V (typ) to enter tone mode before measurement.
Figure 6-1. Test Set-up for MIC Integrated Noise
6.2 Current Measurements
VSHUNT
MIC
TONE
MICPWR
GND
REM
CD326x
VMICBIAS
2.1V
2k
100nF
2.21k
+
–
IMICBIAS
Figure 6-2. Test Set-up for Button Mode Current Measurement
www.ti.com
CD3268A, CD3269A
SCHS463 – MAY 2025
Copyright © 2025 Texas Instruments Incorporated
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Product Folder Links: CD3268A CD3269A



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