PI3B3251LEX

Product Overview

• Category: Integrated Circuit (IC)
• Use: Signal Switch
• Characteristics:
  • Low power consumption
  • High-speed switching
  • Wide operating voltage range
• Package: QFN (Quad Flat No-leads)
• Essence: Efficient signal routing and switching
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Operating Voltage Range: 2.3V to 5.5V
• Switching Frequency: Up to 400MHz
• On-Resistance: 4Ω (typical)
• Off-Isolation: -30dB (typical)
• Propagation Delay: 0.8ns (typical)
• Input Capacitance: 2pF (typical)
• Package Dimensions: 2mm x 2mm x 0.75mm

Detailed Pin Configuration

The PI3B3251LEX has a total of 10 pins arranged as follows:

```

---

| | --| U1 |-- |___________|

Pin Configuration: 1. IN1 2. IN2 3. GND 4. VCC 5. EN 6. NC 7. OUT 8. OUT 9. GND 10. VCC ```

Functional Features

• Bidirectional signal switching between IN1 and OUT, and IN2 and OUT.
• Low on-resistance ensures minimal signal distortion.
• Fast propagation delay allows for high-speed switching applications.
• Wide operating voltage range enables compatibility with various systems.
• Enable pin (EN) for easy control of signal routing.

Advantages and Disadvantages

Advantages: - Low power consumption - High-speed switching capability - Compact package size - Wide operating voltage range

Disadvantages: - Limited number of channels (2 inputs, 1 output)

Working Principles

The PI3B3251LEX is a CMOS-based signal switch that operates by controlling the flow of signals between its input pins (IN1 and IN2) and the output pin (OUT). The enable pin (EN) allows for easy control of the switching operation. When the EN pin is high, the switch is turned on, allowing signals from either IN1 or IN2 to pass through to the OUT pin. Conversely, when the EN pin is low, the switch is turned off, isolating the input pins from the output.

Detailed Application Field Plans

The PI3B3251LEX is commonly used in various electronic systems where efficient signal routing and switching are required. Some potential application fields include:

1. Audio/Video Systems: The IC can be used to switch audio or video signals between different sources, such as DVD players, gaming consoles, or set-top boxes.
2. Communication Systems: It can be utilized in communication devices to route signals between different modules or components, ensuring seamless connectivity.
3. Test and Measurement Equipment: The IC can be integrated into test setups to switch signals between different instruments or measurement points, facilitating accurate data acquisition.
4. Industrial Automation: It can be employed in industrial control systems to route signals between different sensors, actuators, or control units, enabling efficient automation processes.

Detailed and Complete Alternative Models

1. PI3B3245LEX: Similar to PI3B3251LEX but with 8 channels instead of 2.
2. PI3B3257LEX: Offers similar functionality but includes an additional enable pin for independent control of each channel.
3. PI3B3259LEX: Provides bidirectional signal switching with enhanced on-resistance and off-isolation characteristics.

These alternative models offer similar features and can be considered based on specific application requirements.

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