TDA7050

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TDA7050

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Description

TDA7050
Low Voltage Mono/stereo Power Amplifier

Package: SOT97-1 (DIP8)

Manufacturer Part Number: TDA7050
Brand: PHI
DateCode: 96+
Package / Case: SOP/3.9/8P
Category: Integrated Circuits (ICs)
Warranty: 100% Perfect Functions

Similar Models TDA7050/N3

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The parameters and performance indicators of this product are sourced from the internet. In case of discrepancies, please refer to the manufacturer's technical specifications!！

Product Attributes

Parameter	Symbol	Min	Typ	Max	Unit	Description
Supply Voltage	VCC	4.5	9	16	V	Operating supply voltage range
Quiescent Current	IQ	-	8	20	mA	Current consumption in standby
Output Power	POM	-	1.3	1.8	W	Output power into 4Ω at 1% THD+N
Total Harmonic Distortion	THD	-	0.1	1	%	Typical distortion at rated output
Signal to Noise Ratio	SNR	70	75	80	dB	Ratio of signal to noise
Input Sensitivity	VS	200	300	400	mV	Input voltage for rated output
Frequency Response	fL-fH	20	-	20k	Hz	Audio frequency response range
Power Bandwidth	BW	-	20k	-	Hz	Bandwidth for full power operation

Instructions for Use:

Power Supply Connection:
- Connect the positive terminal of the power supply to pin 8 (VCC) and the negative terminal to pin 4 (GND).
Input Connection:
- Connect the audio input signal to pin 1 (IN). Ensure the input signal does not exceed the maximum input sensitivity to avoid distortion.
Output Connection:
- Connect the speaker to pins 5 and 6 (OUT+ and OUT-). The TDA7050 is designed for a 4Ω load.
Bypass Capacitor:
- Place a 10μF capacitor between VCC and GND close to the IC to stabilize the power supply.
Heat Dissipation:
- Ensure adequate heat dissipation if operating near the maximum output power, possibly using a heatsink.
Protection:
- The TDA7050 includes internal protection circuits against overheating, short circuit, and thermal shutdown.
Standby Mode:
- To put the device in standby mode, connect pin 2 (STBY) to GND. To activate normal operation, leave pin 2 open or apply a high logic level.
Layout Considerations:
- Keep signal paths as short as possible to minimize noise pickup.
- Use ground planes to reduce electromagnetic interference.

Always refer to the manufacturer’s datasheet for detailed specifications and application notes.

(For reference only)

TDA7050 Overview

The TDA7050 is a dual low-voltage power amplifier designed for portable applications such as radios, TVs, and other battery-powered audio devices. It operates with minimal external components, making it cost-effective and easy to integrate into compact designs. The device supports bridge-tied load (BTL) configurations, delivering high-quality audio output with low distortion.

Key Features

Dual BTL power amplifier configuration
Low voltage operation (down to 1.6V)
High output power (up to 1W per channel into 8Ω at 5V)
Low distortion and noise
Thermal shutdown and short-circuit protection
Minimal external components required

Parameters of TDA7050

Parameter	Value	Unit
Supply Voltage Range	1.6 - 6	V
Output Power (per channel, RL = 8Ω, THD = 10%)	1	W
Quiescent Current	10	mA
Total Harmonic Distortion (THD)	0.1	%
Signal-to-Noise Ratio (SNR)	70	dB
Input Resistance	50	kΩ
Operating Temperature Range	-40 to +85	°C
Package Type	SO-16	-

Applications

The TDA7050 is widely used in:

Portable radios and cassette players
Miniature TV sets
Personal media players
Other battery-operated audio systems

Design Considerations

When designing with the TDA7050, ensure proper heat dissipation due to its thermal shutdown feature. Use decoupling capacitors close to the power supply pins to minimize noise. Additionally, PCB layout should be optimized to reduce crosstalk between channels and maintain signal integrity.

This amplifier is ideal for applications requiring high efficiency and low power consumption without compromising audio quality.

QUANTITY	UNIT PRICE	PLUS UNIT PRICE	TOTAL PRICE

Substitute (equivalent) Product

Substitute Product	Description
TDA2822	A dual audio power amplifier suitable for battery-powered systems.
LM386	A low voltage audio power amplifier ideal for small form-factor applications.
KA2206	A dual audio amplifier designed for portable devices with low power consumption.
AN7125	A monolithic dual power amplifier with high reliability and stability.
BA5406	A dual power amplifier providing high output and low distortion for audio applications.

Product Usage

The TDA7050 is a versatile, low-voltage audio power amplifier IC designed by NXP Semiconductors. It's commonly used in various audio amplifier circuits due to its low power consumption and dual-channel operation. Here are some typical applications and circuits where the TDA7050 might be used:

1. Portable Audio Devices

Headphone Amplifiers: The TDA7050 is often used in portable headphone amplifiers due to its low voltage operation and minimal external components.
Portable Radios: Used in the audio output stage to drive small speakers or headphones.

2. Consumer Electronics

Television Audio Output: Can be used as the amplifier IC to drive TV speakers.
Computer Speakers: Suitable for low-power desktop speaker systems.
Personal Music Players: Integrated into devices like MP3 players for audio amplification.

3. Educational and Hobby Projects

DIY Audio Amplifiers: Popular among hobbyists for building small-scale audio amplifiers.
Audio Pre-Amplifiers: Can be used in combination with other stages to build multi-stage amplification circuits.
Signal Generators: Used to amplify audio signals in various experimental projects.

Example Circuit Diagram for TDA7050:

Stereo Headphone Amplifier

Components:

TDA7050 IC
Capacitors (e.g., 100 μF, 220 μF, and 4.7 μF)
Resistors (if needed for biasing or feedback)
Power Supply (usually 3V to 15V)

Basic Connection:

            +V
             |
          +--+--+
          |     |
         100uF  | C1
          |     |
          |     |
   +---------------+
   |               |
   |              8|
   |             | |
   |             | |  
   |             | |  
   |    TDA7050  | |
   |             | |  
 3 |             | |
IN-|             | |
 3 |             | |  
   |             | |
 2 |             | |  
 1 |             | | 
GND|             | |
   |             | |
   |             5|
   |             | |
   |             6|      
   +---------------+  
         |
         |
       GND

Connections:

Pin 1: Ground
Pin 2: Input 1 (left)
Pin 3: Positive Supply Voltage (Vcc)
Pin 4: Input 2 (right)
Pin 5: Output 2 (right channel)
Pin 6: Output 1 (left channel)

Additional components like coupling capacitors may be added to filter out DC components or stabilize the power supply.

Important Notes:

Ensure proper heat dissipation for the IC if running at higher power levels.
Follow the recommended power supply range as specified in the datasheet to avoid damaging the IC.
Use appropriate decoupling capacitors close to the IC to minimize power supply noise.

Datasheets and manufacturer application notes often provide detailed circuit examples and guidelines for using the TDA7050 in various configurations. Always refer to the datasheet for specific electrical characteristics and recommended operating conditions.

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Low Voltage Mono/stereo Power Amplifier

Package: SOT97-1 (DIP8)

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TDA7050

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