Document
Si4010-C2
CRYSTAL-LESS SOC RF TRANSMITTER
Features
Crystal-less operation
Single Coin-Cell Battery Operation
Optional crystal oscillator input
Supply voltage: 1.8 to 3.6 V
High-Speed 8051 µC Core
Standby current < 10 nA
Pipeline instruction architecture High-performance RF transmitter
70% of instructions in 1 or 2 clocks Frequency range: 27–960 MHz
Up to 24 MIPs with 24 MHz clock
+10 dBm output power,
4 kB RAM/8kB NVM
adjustable
128 bit EEPROM
Automatic antenna tuning
256 byte of internal data RAM
Symbol rate up to 100 kbps
12 kB ROM embedded functions
FSK/OOK modulation
8 byte low leakage RAM
Manchester, NRZ, 4/5 encoder
Extensive Digital Peripherals
Analog Peripherals
128 bit AES accelerator
LDO regulator with POR circuit
5/9 GPIO with wakeup functionality Battery voltage monitor
LED driver Data serializer High-speed frequency counter On-chip debugging: C2 Unique 4 byte serial number
Temperature range –40 to +85 °C Automotive quality option,
AEC-Q100 (Pending final qualification testing) 10-pin MSOP/14-pin SOIC
Ultra low-power sleep timer
Applications
Garage and gate door openers Remote keyless entry
Home automation and security Wireless remote controls
Description
The Si4010 is a fully integrated crystal-less CMOS SoC RF transmitter with an embedded CIP-51 8051 MCU. The device can operate over the –40 to 85 °C temperature range without requiring an external crystal reference source reducing board area and BOM cost. The device includes an 8 kB non volatile memory block for programming the user's application along with a 12 kB ROM of embedded support code for use in the user's application. The Si4010 includes Silicon Laboratories' 2-wire C2 Debug and Programming interface, which allows customers to download their code during the development stage into the on-board RAM for testing and debug prior to programming the NVM. The Si4010 is designed for low power battery applications with standby currents of less than 10 nA to optimize battery life and features automatic wake on button press support to efficiently move from the standby to active mode state with minimal customer code support. Built in AES-128 hardware encryption along with a 128-bit EEPROM can be used to create robust data encryption of the transmitted packets. A unique 4-byte serial number is programmed into each device ensuring non-overlapping device identifiers. The RF transmitter features a high efficiency PA capable of delivering output power up to +10 dBm and includes an automatic antenna tuning algorithm. This algorithm adjusts the antenna tuning at the start of each packet transmission for optimal output power minimizing the impact of antenna impedance changes due to the remote being held in a user hand. The devices supports FSK and OOK modulations and includes automatic output power shaping to reduce spectral spreading and ease regulatory compliance. The output fre.