TDA7432D
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STMicroelectronics TDA7432D

Manufacturer No:
TDA7432D
Manufacturer:
STMicroelectronics
Package:
Tube
Description:
IC AUDIO TONE PROCESSOR 20SO
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Payment:
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Product Introduction

Overview

The TDA7432D, produced by STMicroelectronics, is a sophisticated audio tone processor designed for high-quality audio applications in both automotive and consumer audio systems. This integrated circuit offers comprehensive control over audio parameters, including volume, tone (bass and treble), and balance (left/right) adjustments. The TDA7432D is equipped with advanced features such as multiple input selections, independent speaker attenuators, and a programmable interface via the I2C bus.

Key Specifications

Parameter Min. Typ. Max. Unit
Supply Voltage (VS) 7 9 10.2 V
Operating Temperature Range (Tamb) -40 85 °C
Storage Temperature Range (Tstg) -55 150 °C
Total Harmonic Distortion (THD) at 1Vrms, 1kHz 0.05 %
Signal to Noise Ratio (S/N) 102 dB
Channel Separation at 1kHz 70 dB
Volume Control Range -79 +32 dB
Bass Control Range -18 +18 dB
Treble Control Range -14 +14 dB
Speaker Attenuators Range 0 -37.5 dB

Key Features

  • Multiple Input Selection: The TDA7432D can select between two stereo inputs and one mono input.
  • Programmable Interface: All functions are programmable via the I2C bus, allowing for precise control over audio settings.
  • Volume Control: Volume can be controlled in 1dB steps from +32dB to -79dB.
  • Tone Control: Bass and treble adjustments are available in 2dB steps, with bass ranging from -18dB to +18dB and treble from -14dB to +14dB.
  • Speaker Attenuators: Four independent speaker attenuators with a range from 0 to -37.5dB.
  • Mute Function: Software and hardware mute functions are available, including a special mute bit for speaker attenuators.
  • Low Distortion Outputs: All four outputs are low distortion push-pull outputs capable of driving a 3kΩ load.

Applications

The TDA7432D is designed for use in various audio systems, including:

  • Automotive Audio Systems: Ideal for car radios and other automotive audio applications.
  • Consumer Audio Systems: Suitable for Hi-Fi systems and other consumer audio equipment.

Q & A

  1. What is the operating supply voltage range of the TDA7432D?

    The operating supply voltage range is from 7V to 10.2V.

  2. What is the operating temperature range of the TDA7432D?

    The operating temperature range is from -40°C to 85°C.

  3. How many input channels does the TDA7432D support?

    The TDA7432D supports two stereo inputs and one mono input.

  4. What is the range of the volume control on the TDA7432D?

    The volume control ranges from +32dB to -79dB in 1dB steps.

  5. How does the bass control function on the TDA7432D?

    The bass control adjusts from -18dB to +18dB in 2dB steps.

  6. What is the range of the treble control on the TDA7432D?

    The treble control adjusts from -14dB to +14dB in 2dB steps.

  7. Can the speaker attenuators be controlled independently?

    Yes, the four speaker attenuators can be controlled independently from 0 to -37.5dB.

  8. How is the mute function implemented on the TDA7432D?

    The mute function can be activated via software or hardware, including a special mute bit for speaker attenuators.

  9. What is the interface protocol used for programming the TDA7432D?

    The interface protocol is I2C, with a maximum clock speed of 500kbits/s.

  10. What is the typical signal to noise ratio (S/N) of the TDA7432D?

    The typical signal to noise ratio is 102 dB.

Product Attributes

Function:Audio Tone Processor
Applications:Automotive Audio, Consumer Audio
Number of Channels:2
Interface:I²C
Voltage - Supply:7V ~ 10.2V
Operating Temperature:-40°C ~ 85°C (TA)
Specifications:- 
Mounting Type:Surface Mount
Package / Case:20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:20-SO
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Same Series
TDA7432D013TR
TDA7432D013TR
IC AUDIO TONE PROCESSOR 20SO

Similar Products

Part Number TDA7432D TDA7462D TDA7433D TDA7438D TDA7442D
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Product Status Obsolete Obsolete Obsolete Obsolete Obsolete
Function Audio Tone Processor Audio Signal Processor, Compander Audio Tone Processor Audio Tone Processor Audio Tone Processor
Applications Automotive Audio, Consumer Audio Consumer Audio Automotive Audio, Consumer Audio Automotive Audio, Consumer Audio Consumer Audio
Number of Channels 2 2 2 2 2
Interface I²C I²C I²C I²C I²C
Voltage - Supply 7V ~ 10.2V 7.5V ~ 10.2V 7V ~ 10.2V 6V ~ 10.2V 7V ~ 10.2V
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) 0°C ~ 70°C (TA) -10°C ~ 70°C (TA)
Specifications - - - - 0.5dB
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case 20-SOIC (0.295", 7.50mm Width) 28-SOIC (0.295", 7.50mm Width) 20-SOIC (0.295", 7.50mm Width) 28-SOIC (0.295", 7.50mm Width) 28-SOIC (0.295", 7.50mm Width)
Supplier Device Package 20-SO 28-SO 20-SO 28-SO 28-SO

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