TS4990IDT

Product Overview

• Category: Integrated Circuit (IC)
• Use: Audio Amplifier
• Characteristics: High-performance, low-power stereo headphone amplifier
• Package: Thin Shrink Small Outline Package (TSSOP)
• Essence: Provides high-quality audio amplification for headphones
• Packaging/Quantity: Available in reels of 2500 units

Specifications

• Power Supply Voltage: 2.5V to 5.5V
• Output Power: Up to 80mW per channel into a 16Ω load at 3.3V supply voltage
• Total Harmonic Distortion + Noise (THD+N): 0.1% at 1kHz, 20mW output power
• Shutdown Current: 0.01μA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TS4990IDT has a total of 8 pins, as shown below:

```

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| | --| VDD GND|-- --| INL OUTL|-- --| INR OUTR|-- --| SHDN NC|-- |___________| ```

• VDD: Power supply pin (2.5V to 5.5V)
• GND: Ground pin
• INL: Left channel audio input
• OUTL: Left channel audio output
• INR: Right channel audio input
• OUTR: Right channel audio output
• SHDN: Shutdown control pin (active low)
• NC: No connection (unused pin)

Functional Features

• High-quality audio amplification for stereo headphones
• Low-power consumption for extended battery life
• Wide power supply voltage range for flexibility in various applications
• Low total harmonic distortion and noise for clear audio reproduction
• Shutdown mode for power-saving when not in use

Advantages and Disadvantages

Advantages: - High-performance audio amplification - Low-power consumption - Wide operating temperature range - Small package size for space-constrained designs

Disadvantages: - Limited output power compared to some other amplifiers - No built-in volume control or equalization features

Working Principles

The TS4990IDT is a class AB stereo headphone amplifier. It amplifies the audio signals received from the left and right channels, providing an amplified output suitable for driving headphones. The amplifier operates within a specified power supply voltage range and delivers low-distortion audio with minimal noise.

Detailed Application Field Plans

The TS4990IDT is commonly used in various audio applications, including:

1. Portable media players
2. Smartphones and tablets
3. Laptop and desktop computers
4. Gaming consoles
5. Personal audio devices

Alternative Models

Below are some alternative models that can be considered as alternatives to the TS4990IDT:

1. MAX97220A: Low-power stereo headphone amplifier with integrated volume control.
2. TPA6130A2: High-performance stereo headphone amplifier with adjustable gain settings.
3. LM48824: Class D stereo headphone amplifier with built-in EQ and volume control.

These alternative models offer different features and specifications, allowing designers to choose the most suitable option for their specific application requirements.

In conclusion, the TS4990IDT is a high-performance, low-power stereo headphone amplifier designed for various audio applications. Its small package size, wide operating voltage range, and low distortion make it an ideal choice for portable devices and personal audio equipment.