آر اف (فرکانس رادیویی) و بی‌سیم آی سی‌ فرستنده‌گیرنده آر اف

Product Attributes

Introduction

The MAQRF112 is a high-performance, easy to use, true “Data-In, RF-Out”, ASK/FSK, phase-locked loop (PLL) based, transmitter IC for automotive applications in the 300MHz to 450MHz frequency range. These applications include remote keyless entry (RKE) and tire pressure monitoring systems (TPMS). The device needs only a low-cost crystal to precisely set the desired RF frequency, and a few external components for matching the power amplifier output to the antenna. The MAQRF112 operates over the 1.8V to 3.6V operating range. It delivers +10dBm (CW) output power into a 50Ω load, while consuming 11.5mA of supply current from a 3.0V power supply. In ASK mode, the device consumes 6.9mA of supply current at a data rate of 1kbps (Manchester 50%). It features a low-power shutdown mode in which the device typically consumes 50nA of supply current. This makes it an ideal solution for battery powered applications. The MAQRF112 is Automotive Qualified (AEC-Q100) and is rated to operate over the -40°C to +125°C temperature range. For non-automotive applications that do not require AEC-Q100 qualification, consider the MICRF112. For ASK-only applications that do not require shutdown, consider the MICRF113 in SOT23-6.

Features

• AEC-Q100 Automotive Qualified
• 300MHz to 450MHz frequency range
• Data rates up to 50kbps ASK/10kbps FSK
• 1.8V to 3.6V operating voltage range
• +10 dBm output power (CW) at 3.0V
• 11.5mA of supply current at +10dBm (CW)
• 6.9mA of supply current at 1kbps (ASK, Manchester)
• 50nA supply current in shutdown mode
• Needs only one crystal to set the desired RF frequency
• -40°C to +125°C operating temperature range
• 10-pin MSOP package (4.9mm×3.0mm)

Applications

• Remote keyless entry systems (RKE)
• Tire pressure monitoring systems (TPMS)