PI3B3251QEX

Product Overview

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

Specifications

• Number of Channels: 4
• Switch Type: Single Pole Double Throw (SPDT)
• Operating Voltage: 2.3V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• On-Resistance: 0.6Ω (typical)
• Bandwidth: 1.65GHz (typical)
• Propagation Delay: 0.8ns (typical)

Detailed Pin Configuration

The PI3B3251QEX has a total of 16 pins arranged as follows:

```

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| | | 1 9 16 | | o---o---o | | | | | | | | | | | | o---o---o | | 2 8 15 | |______________| ```

Pin Description: 1. Channel 1 Input 2. Channel 1 Output 8. Channel 2 Output 9. Channel 2 Input 15. Channel 4 Input 16. Channel 4 Output

Functional Features

• High-speed signal switching with minimal propagation delay
• Low on-resistance for efficient signal transmission
• Wide operating voltage range for compatibility with various systems
• Compact QFN package for space-constrained applications
• Low power consumption for energy-efficient operation

Advantages and Disadvantages

Advantages: - High-speed switching enables fast data transfer - Low on-resistance ensures minimal signal loss - Wide operating voltage range allows for versatile use - Compact package saves board space

Disadvantages: - Limited number of channels (4) - Relatively high cost compared to simpler switches

Working Principles

The PI3B3251QEX is a single pole double throw (SPDT) switch that operates by selectively connecting one of two input channels to a common output. It utilizes MOSFET technology to achieve high-speed switching with low on-resistance. When the control signal is applied, the corresponding channel is activated, allowing the signal to pass through.

Detailed Application Field Plans

The PI3B3251QEX is commonly used in various applications requiring signal switching, such as:

1. Communication Systems: Used for routing signals between different components in wireless communication systems.
2. Test and Measurement Equipment: Enables the selection of different test signals for accurate measurements.
3. Audio/Video Switching: Allows seamless switching between audio/video sources in multimedia devices.
4. Data Acquisition Systems: Facilitates the selection of different sensor inputs for data acquisition purposes.
5. Industrial Automation: Used for signal routing in control systems and industrial machinery.

Detailed and Complete Alternative Models

1. PI3B3245QEX: Similar to PI3B3251QEX but with 8 channels instead of 4.
2. PI3B3253QEX: SPDT switch with integrated level translation capability.
3. PI3B3257QEX: Quad SPDT switch with separate enable control for each channel.
4. PI3B3259QEX: Dual SPDT switch with built-in ESD protection.

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

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