Analog Front-End Dual Receiver Base Unit (TRF7900APW)

The TRF7900A is a dual integrated RF transceiver designed for Human Interface Devices (HID). Operating at 27 MHz, it integrates multiple components (PLL, RF mixer, simulated SAW filter, tuning circuit, and miscellaneous passive components) to provide frequency selection from 8 discrete channels. This integration lowers component, manufacturing and system costs.

Fearutes

• 23 Discrete Components Intgrated Into One Chip
  • Only External Components are Bypass and Filter Capacitors, and One Crystal
• RF Tuner, Mixer, Transistors, Passives, Coils, and SAW Filter Functionality All on One Chip
• Integrated Phase Locked Loop
• 8 User-Selectable Frequencies
  • Each Channel (Mouse and Keyboard) Can Independently Select Any of the Available Frequencies
• Internally Generated 6-MHz Clock to Drive USB Microcontroller
• High Data Throughput Rate
  • 5-kHz Square Wave Simultaneously per Channel
  • 10 kbps Miller Encoded Data
• I2C Control Interface
• Received Signal Strength Indicator (4-BIt)
• 5-V, 52 mA Supply
• Available in 28-Pin TSSOP (PW) Package