RF65 Datasheet, PDF (2/72 Pages) List of Unclassifed Manufacturers – Low Power Integrated UHF Receiver With -120dBm High Sensitivity

ADVANCED COMMUNICATIONS & SENSING
RF65
DATASHEET
Table of Contents
Page
1. General Description ................................................................................................................................................. 8
1.1. Simplified Block Diagram .................................................................................................................................8
1.2. Pin and Marking Diagram................................................................................................................................... 9
1.3. Pin Description ......................................................................................................................................10
2. Electrical Characteristics.......................................................................................................................................... 11
2.1. ESD Notice....................................................................................................................................................... 11
2.2. Absolute Maximum Ratings ...................................................................................................................11
2.3. Operating Range.............................................................................................................................................. 11
2.4. Chip Specification ................................................................................................................................ 12
2.4.1. Power Consumption ................................................................................................................................. 12
2.4.2. Frequency Synthesis ................................................................................................................................ 12
2.4.3. Receiver ..................................................................................................................................................... 13
2.4.4. Digital Specification .................................................................................................................................. 14
3. Chip Description...................................................................................................................................................... 15
3.1. Power Supply Strategy..................................................................................................................................... 15
3.2. Low Battery Detector........................................................................................................................................ 15
3.3. Frequency Synthesis........................................................................................................................................ 15
3.3.1. Reference Oscillator ................................................................................................................................. 15
3.3.2. CLKOUT Output .......................................................................................................................................16
3.3.3. PLL Architecture ....................................................................................................................................... .16
3.3.4. Lock Time .................................................................................................................................................17
3.3.5. Lock Detect Indicator................................................................................................................................. 17
3.4. Receiver Description ...............................................................................................................................17
3.4.1. Block Diagram ........................................................................................................................................... 17
3.4.2. LNA - Single to Differential Buffer .............................................................................................................18
3.4.3. Automatic Gain Control ............................................................................................................................. 18
3.4.4. Continuous-Time DAGC............................................................................................................................ 20
3.4.5. Quadrature Mixer - ADCs - Decimators..................................................................................................... 20
3.4.6. Channel Filter ............................................................................................................................................20
3.4.7. DC Cancellation ........................................................................................................................................21
3.4.8. Complex Filter - OOK ................................................................................................................................22
3.4.9. RSSI ............................................................................................................................................................ 22
3.4.10. Cordic ........................................................................................................................................................ 22
3.4.11. Bit Rate Setting .......................................................................................................................................22
3.4.12. FSK Demodulator ....................................................................................................................................23
3.4.13. OOK Demodulator ..................................................................................................................................24
3.4.14. Bit Synchronizer .................................................................................................................................... 26
3.4.15. Frequency Error Indicator....................................................................................................................... 26
3.4.16. Automatic Frequency Correction ............................................................................................................ 27
3.4.17. Optimized Setup for Low Modulation Index Systems ............................................................................. 28
Tel: [phone] Fax: [phone] E-mail: [e-mail] http://www.hoperf.com
Page 2