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PCM1791ADBR - Texas Instruments

Description: 113dB SNR Stereo DAC (S/W Control)

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PCM1791ADBR - Texas Instruments - PCB symbol
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PCB Footprints
PCM1791ADBR - Texas Instruments PCB footprint - Small Outline Packages - Small Outline Packages - DB0028A
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3D Models
PCM1791ADBR - Texas Instruments - 3D model - Small Outline Packages - DB0028A
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PCM1791ADBR Details

  • Manufacturer Part Number:

    PCM1791ADBR

  • Brand Name:

    Texas Instruments

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Part Package Code:

    SSOP

  • Pin Count:

    28

  • Country Of Origin:

    Malaysia

  • ECCN Code:

    EAR99

  • HTS Code:

    8542.39.00.40

  • Manufacturer:

    Texas Instruments

  • YTEOL:

    15

  • Analog Output Voltage-Max:

    3.2 V

  • Converter Type:

    D/A CONVERTER

  • Input Bit Code:

    2'S COMPLEMENT BINARY

  • Input Format:

    SERIAL

  • JESD-30 Code:

    R-PDSO-G28

  • JESD-609 Code:

    e4

  • Length:

    10.2 mm

  • Moisture Sensitivity Level:

    1

  • Number of Bits:

    24

  • Number of Functions:

    1

  • Number of Terminals:

    28

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -25 °C

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    SSOP

  • Package Equivalence Code:

    SSOP28,.3

  • Package Shape:

    RECTANGULAR

  • Package Style:

    SMALL OUTLINE, SHRINK PITCH

  • Peak Reflow Temperature (Cel):

    260

  • Qualification Status:

    Not Qualified

  • Sample Rate:

    0.192 MHz

  • Seated Height-Max:

    2 mm

  • Supply Current-Max:

    16 mA

  • Supply Voltage-Nom:

    5 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    OTHER

  • Terminal Finish:

    Nickel/Palladium/Gold (Ni/Pd/Au)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.65 mm

  • Terminal Position:

    DUAL

  • Time@Peak Reflow Temperature-Max (s):

    30

  • Width:

    5.3 mm

PCM1791ADBR Frequently Asked Questions (FAQs)

  • The recommended power-up sequence is to apply VCC first, followed by VDD, and then the digital inputs. This ensures that the internal voltage regulators are powered up correctly and that the digital circuitry is stable before the analog circuitry is enabled.
  • To optimize the PCB layout, keep the analog and digital grounds separate, use a solid ground plane, and keep the analog signal traces away from the digital signal traces. Also, use a low-ESR capacitor for the VCC and VDD pins, and place the decoupling capacitors close to the pins.
  • The maximum clock frequency that can be used with the PCM1791 is 256 fs (where fs is the sampling frequency). However, it's recommended to use a clock frequency that is 128 fs or less to ensure optimal performance and to minimize jitter.
  • To configure the PCM1791 for Master Clock mode, set the MCLK pin to the desired clock frequency, and set the BCK pin to the bit clock frequency (which is typically 64 fs). Also, set the WS pin to the word clock frequency (which is typically fs).
  • The recommended operating temperature range for the PCM1791 is -40°C to 85°C. However, the device can operate up to 105°C with reduced performance and reliability.

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PCM1791ADBR Overview

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About Texas Instruments

Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.

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