KTH5791 - Mouse Encoder 3D Hall Sensor
KTH5791
Mouse Encoder with AB Quadrature Output
Product Overview
KTH5791 is a 3D Hall magnetic sensor specifically designed for mouse encoder applications. It features AB quadrature output for precise rotational position sensing, making it ideal for scroll wheels and other rotary input devices.
Based on 3D Hall technology, KTH5791 integrates X, Y, and Z axis Hall elements with dedicated signal processing for generating high-resolution AB quadrature signals. The built-in interpolation algorithm provides smooth and accurate position feedback.
Key Advantages for Mouse Applications
| Feature | Traditional Optical | KTH5791 3D Hall |
|---|---|---|
| Dust Resistance | Sensitive | Immune |
| Power Consumption | Higher | Ultra-low |
| Resolution | Fixed | Configurable |
| Reliability | Moderate | Excellent |
| Cost | Higher | Competitive |
AB Quadrature
Direct AB output for encoder applications
High Resolution
Configurable resolution up to 1000+ CPR
Ultra Low Power
Ideal for wireless mouse applications
Temperature Stable
Reliable performance from -40°C to +85°C
Dust Immune
Contactless sensing, no optical components
Compact Package
QFN3x3-16L package
Specifications
Absolute Maximum Ratings
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Analog Supply Voltage | AVDD_MAX | -0.3 | - | 6 | V |
| Digital Supply Voltage | DVDD_MAX | -0.3 | - | 6 | V |
| IO Supply Voltage | VDDIO_MAX | -0.3 | - | 6 | V |
| Storage Temperature | T_STORAGE | -50 | - | 150 | °C |
| ESD (HBM) | V_ESD | - | - | ±5K | V |
Recommended Operating Conditions
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions |
|---|---|---|---|---|---|---|
| Analog Supply Voltage | AVDD | 2.8 | 3.3 | 5.5 | V | - |
| Digital Supply Voltage | DVDD | 1.9 | - | AVDD | V | - |
| IO Supply Voltage | VDDIO | 1.9 | - | AVDD | V | - |
| Operating Temperature | T_OP | -40 | 25 | 85 | °C | - |
Output Parameters
| Parameter | Description | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| AB Output | Quadrature Output | - | Push-Pull | - | - |
| Resolution | Counts Per Revolution | 16 | - | 1024 | CPR |
Typical Applications
- Computer mice scroll wheels
- Trackballs
- Rotary knobs
- Volume controls
- Navigation wheels
Technical Documents
Datasheet
📄KTH5791 DatasheetOrdering Information
| Part Number | Package | Operating Temperature | Pins | Packing |
|---|---|---|---|---|
| KTH5791AQ3QNS | QFN3x3-16L | -40°C ~ +85°C | 16 | 5000/Reel |
Related Products
| Model | Description | Key Difference |
|---|---|---|
| KTH5771 | General 3D Hall | Basic I2C/SPI output |
| KTH5772 | Gaming Joystick | Optimized for gaming |
| KTH5774 | Enhanced 3D Hall | Higher precision |
For technical support, please contact: support@conntek.com
Owner: liaochongqi