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PMB2920

Features: • High performance A/D- and D/A conversion• Adjustable analog amplifiers• Analog front end for direct connection of a handset mouth and earpiece• On-chip microphone supply generation• Power savings power-down and MUTE functions• Comparator for preproce...

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SeekIC No. : 004463984 Detail

PMB2920: Features: • High performance A/D- and D/A conversion• Adjustable analog amplifiers• Analog front end for direct connection of a handset mouth and earpiece• On-chip microphone...

PMB2920 Data Sheet

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Part Number:
PMB2920
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: 2024/11/25

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Product Details

Description



Features:

• High performance A/D- and D/A conversion
• Adjustable analog amplifiers
• Analog front end for direct connection of a handset mouth and earpiece
• On-chip microphone supply generation
• Power savings power-down and MUTE functions
• Comparator for preprocessing of the demodulated receive signal
• Reference voltage generation for on-chip A/D- and D/A converters and for the DECT-Digital Circuit
• Support of volume control of the tone ringer signal


Description

The DECT-Analog Circuit PMB2920 is one of the devices of the Siemens chip set for the digital cordless telephone specified by the DECT standard.

PMB2920 designed for cordless handhelds and cordless fixed stations is a highly integrated circuit and realizes the analog front end functions of PMB2920 needed in such systems. The circuit contains an A/D- and a D/A converter and adjustable gain stages. Connection of microphone and earpiece is possible with a minimum of external components.

Furthermore PMB2920 generates the reference voltages for the A/D converter the TXDA output voltage stabilization and the LCD-display-driver modules integrated in the DECT-Digital Circuit.

The reference voltages of PMB2920 can be used together with external components and the PMB 27201, 27202, 27221, 27251,27252 and 2728 for volume control of the ringer.

PMB2920 is fabricated using Siemens advanced ACMOS technology and will be available in a 24 pin package.




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