Overview
The TDA8034HN/C2QL, produced by NXP USA Inc., is a cost-effective analog interface designed for asynchronous and synchronous smart cards. This integrated circuit operates at various voltage levels, including 5 V, 3 V, and 1.8 V, making it versatile for different smart card applications. It provides comprehensive supply, protection, and control functions between the smart card and the microcontroller, requiring minimal external components.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| VDDP (Power Supply Voltage) | VCC = 5 V | 4.85 | 5 | 5.5 | V |
| VDDP (Power Supply Voltage) | VCC = 3 V and 1.8 V | 3 | 3.3 | 5.5 | V |
| VDD (Supply Voltage) | 2.7 | 3.3 | 3.6 | V | |
| VDD(INTF) (Interface Supply Voltage) | 1.6 | 3.3 | VDD + 0.3 | V | |
| IDD (Supply Current in Shutdown Mode) | - | - | 35 | μA | |
| Operating Temperature | -25 | 85 | °C | ||
| Power Dissipation | 250 | mW |
Key Features
- Integrated circuit smart card interface in a 24-pin HVQFN package
- Supports 5 V, 3 V, or 1.8 V smart card supply
- Very low power consumption in Deep Shutdown mode
- Three protected half-duplex bidirectional buffered I/O lines (C4, C7, and C8)
- VCC regulation with ±5% accuracy using two low ESR multilayer ceramic capacitors
- Automatic clock source detection and switching between internal and external clock sources
- Voltage supervisor with Power-On Reset (POR) and supply drop-out detection
Applications
- Pay TV systems
- Electronic payment systems
- Identification systems
- Bank card readers
Q & A
- What are the supported voltage levels for the TDA8034HN/C2QL?
The TDA8034HN/C2QL supports 5 V, 3 V, and 1.8 V smart card supply voltages.
- What is the package type of the TDA8034HN/C2QL?
The TDA8034HN/C2QL is packaged in a 24-pin HVQFN (4x4 mm) package.
- How does the TDA8034HN/C2QL manage clock signals?
The TDA8034HN/C2QL automatically detects and switches between internal and external clock sources.
- What are the key features of the voltage regulation in the TDA8034HN/C2QL?
The TDA8034HN/C2QL provides VCC regulation with ±5% accuracy using two low ESR multilayer ceramic capacitors.
- What is the power dissipation of the TDA8034HN/C2QL?
The power dissipation of the TDA8034HN/C2QL is up to 250 mW.
- What are the operating temperature ranges for the TDA8034HN/C2QL?
The operating temperature range is from -25°C to 85°C.
- How does the TDA8034HN/C2QL handle power supply shutdown?
The TDA8034HN/C2QL has a Deep Shutdown mode with very low power consumption.
- What types of I/O lines are provided by the TDA8034HN/C2QL?
The TDA8034HN/C2QL provides three protected half-duplex bidirectional buffered I/O lines (C4, C7, and C8).
- What is the purpose of the voltage supervisor in the TDA8034HN/C2QL?
The voltage supervisor provides Power-On Reset (POR) and supply drop-out detection during a card session.
- In which applications is the TDA8034HN/C2QL commonly used?
The TDA8034HN/C2QL is commonly used in Pay TV systems, electronic payment systems, identification systems, and bank card readers.
