Silicon Laboratories SI4421 manuals
Household Appliance > Home Security System
When we buy new device such as Silicon Laboratories SI4421 we often through away most of the documentation but the warranty.
Very often issues with Silicon Laboratories SI4421 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Home Security System Silicon Laboratories SI4421 is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Home Security System on our side using links below.
Silicon Laboratories SI4421 Manual
45 pages 1.4 Mb
Si4421 Si4421 Universal ISM Band FSK Transceiver DESCRIPTION FUNCTIONAL BLOCK DIAGRAM 2 Si4421 DETAILED FEATURE-LEVEL DESCRIPTION PLL RF Power Amplifier (PA) LNA Baseband Filters Full Baseband Amplifier Transfer Function BW=67kHz Data Filtering and Clock Recovery 3 Data Validity BlocksRSSI Typical Analog ARSSI Voltage vs. RF Input Power DQD AFC Crystal Oscillator Low Battery Voltage Detector Wake-Up Timer Event Handling Interface and Controller 4 Si4421 PACKAGE PIN DEFINITIONS Pin type key: D=digital, A=analog, S=supply, I=input, O=output, IO=input/output 5 Internal Pin Connections 7 Typical Application Typical application with FIFO usage Si4421 Recommended supply decoupling capacitor values C2 and C3 should be 0603 size ceramic capacitors to achieve the best supply decoupling. Pin Function vs. Operation Mode 8 Si4421 GENERAL DEVICE SPECIFICATIONS All voltages are referenced to Vss, the potential on the ground reference pin VSS. Absolute Maximum Ratings (non-operating) Recommended Operating Range 9 Si4421 ELECTRICAL SPECIFICATION 13 Si4421 CONTROL INTERFACE 21 Si4421 8. Synchron Pattern Command 9. Receiver FIFO Read Command 10. AFC Command 23 11. TX Configuration Control Command 28 Si4421 INTERRUPT HANDLING 29 Si4421 TX REGISTER BUFFERED DATA TRANSMISSION 31 Si4421 RX FIFO BUFFERED DATA READ RECOMMENDED PACKET STRUCTURES 32 Si4421 CRYSTAL SELECTION GUIDELINESMaximum XTAL Tolerances Including Temperature and Aging [ppm] 34 Si4421 RESET MODES36 Si4421 TYPICAL PERFORMANCE CHARACTERISTICS Channel Selectivity and Blocking: Phase Noise Performance in the 433, 868 and 915 MHz Bands: 433 MHz 868 MHz 915 MHz (Measured under typical conditions: Top = 27 oC; Vdd = Voc = 2.7 V) 37 BER Curves in 433 MHz Band: BER Curves in 868 MHz Band: 38 Receiver Sensitivity over Ambient Temperature (433 MHz, 2.4 kbps, Receiver Sensitivity over Ambient Temperature (868 MHz, 2.4 kbps, fFSK: 45 kHz, BW: 67 kHz): 39 Si4421 REFERENCE DESIGNS Evaluation Board with 50 Ohm Matching Network Schematics Frequency Dependent Component Values Recommended Component Types For component selection guidelines, see the notes on the next page. 41 Evaluation Board with Resonant PCB Antenna (BIFA) Schematics Band C3 [pF] L1 [nH] 868 MHz 47 22 Dual (868/915 MHz) 47/33 18 915 MHz 33 15 43 Si4421 PACKAGE INFORMATION 44 Si4421 RELATED PRODUCTS AND DOCUMENTS Si4421 Universal ISM Band FSK Transceiver Demo Boards and Development Kits Related Resources
Also you can find more Silicon Laboratories manuals or manuals for other Household Appliance.