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TDA7449L The STMicroelectronics TDA7449L is a digitally controlled audio processor designed for TV systems. It offers volume control and balance processing with selectable input gain.
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TDA7449L

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics TDA7449L is a digitally controlled audio processor designed for TV systems. It offers volume control and balance processing with selectable input gain.
✓ Total Stock: 60 pcs
$ Price Range: $2.22

TDA7449L Available from 1 distributor

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✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Hybrid Electronics ✓
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60 pcs
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TDA7449L Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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TDA7449L Description

Short technical summary and product information.

The TDA7449L from STMicroelectronics is a low-cost, digitally controlled audio processor suitable for quality audio applications in TV systems. It features a flexible input multiplexer with two stereo inputs and selectable gain for optimal adaptation to various sources. The device provides one stereo output with precise volume control in 1.0dB steps and two independent speaker attenuators for balance facility, also adjustable in 1.0dB steps. All functions are programmable via a serial bus (I2C interface).

 

Built using BIPOLAR/CMOS technology, the TDA7449L achieves low distortion and low noise. It operates within a supply voltage range of 6V to 10.2V and has an operating ambient temperature range of 0°C to 70°C. The processor offers a signal-to-noise ratio of 106dB and channel separation of 90dB. It is supplied in a 20-DIP through-hole package.

 

Key features include selectable input gain from 0 to 30dB, volume control from -47dB to 0dB, and independent mute function with 100dB attenuation. The processor's AC signal setting is managed by resistor networks and switches combined with operational amplifiers, ensuring DC stepping for smooth adjustments.

TDA7449L Quick Information

Product Type: Audio Processor
Canonical Name: TDA7449L Digitally Controlled Audio Processor
Subcategory: Audio Special Purpose

TDA7449L Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TDA7449L Estimated Pricing

Qty Low High
1+ $2.22 $2.22

Estimated market price range - modelled values for guidance only, not live distributor offers.

TDA7449L Features

  • Digitally controlled audio processor for TV systems.
  • Selectable input gain from 0 to 30dB.
  • Volume and balance control in 1.0dB steps.
  • Two independent speaker attenuators.
  • Programmable via serial bus (I2C).

TDA7449L Applications

  • Used in TV audio systems for volume control.
  • Ideal for audio signal processing in consumer electronics.
  • Suitable for balance and mute functions in audio devices.
  • Applicable in audio amplifiers requiring input gain adjustment.
  • Used in audio mixing consoles for channel control.

TDA7449L FAQs

6 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the TDA7449L?

The operating supply voltage range is 6V to 10.2V.

What package type is the TDA7449L supplied in?

The TDA7449L is supplied in a 20-DIP (0.300", 7.62mm) package.

What is the operating temperature range for this audio processor?

The operating ambient temperature range is 0°C to 70°C.

What is the signal-to-noise ratio of the TDA7449L?

The signal-to-noise ratio is 106dB when Vout is 1Vrms in OFF mode.

How is the volume controlled on the TDA7449L?

Volume is controlled in 1.0dB steps, with a control range from -47dB to 0dB.

What interface is used to program the TDA7449L functions?

All functions are programmable via a serial bus, specifically an I2C interface.

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