RF Receiver AM, FM, SW-LW kHz ~ kHz, kHz ~ MHz, MHz ~ MHz, 64MHz ~ MHz PCB, Surface Mount QFN (3×3). 23 Jul I have gone through our Shortwave Radio Index (SWRI) and tagged every portable radio that is based on the Silicon Labs Si DSP chipset. The Si/35 is the first digital CMOS AM/FM radio receiver IC that integrates the complete tuner function from antenna input to audio output. Functional Block .
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The mention of automatic variable bandwidth caught my attention. Programming with Commands 5. Commands and Properties Table The PL should handle 50mV per meter fairly well at sharper bandwidth. FM Receiver Characteristics1,2 Table Adjustable soft mute control. Electrical Specifications Table 1. Freq synthesizer with integrated Is4734. Automatic gain control AGC.
Complain wrong Brand wrong Model non readable. Retailers have given up on HD Radio as sales were always virtually nonexistent. Worldwide AM band support — kHz.
Audio Sample Rates Figure From the following description it sounds like it also varys the bandwidth according to the signal: Typical Application Schematic 3. SW band support 2. Package Markings Top Marks 8.
Silicon Laboratories SI4734/35-B20 Radio User Manual
Antenna Selection and Universal Layout Guide. Reference Clock and Crystal Characteristics 2. Reset Timing Characteristics1,2,3 Figure 1. They also share an HD troubleshooting guidelines. I wonder if the new chips have similar problems.
LW band support — KHz. DC Characteristics Table 4.
Top Mark Explanation 9. Newer Post Older Post Home. Thanks su4734 sharing your experiences. It’s reinvigorated my interest in FM programming and the local Seattle FM scene through the additional music genres and programming compared to the wasteland of standard FM here.
No manual alignment necessary. This is a great article. The radio is likely desensing due to strong signal. To ensure proper operation and. Wide range of ferrite loop sticks and air loop antennas supported. Bill of Materials 4. Your observations about HD Radio dying on the vine are correct. Glad you liked the ai4734.
In the radio’s menu system you can set the bandwidth to be fixed, or dynamic and adjusted by the radio’s DIAS II circuit automatically. It could be that your HDR60 model contains this very chip.
Si , Tube Si; Röhre Si ID, IC – Integrated
Stereo Audio Processing Figure Audio Data Formats 4. Raj, 50mV if across the antenna terminals is quite a large signal.
My PL goes completely dead with an input si4743 of 50mV. Because unlike analog tuners which are based on hard-wired circuitry, the all-digital DiAS Digital Intelligent Advanced Sensing tuner relies on digital programming on a unified chip to deliver versatile next-generation performance.
Very interesting and well written article! Raj, marina, Thanks for the warm comments.
Absolute Maximum Ratings1,2 Table 3. Table and portable radios. Hi Radio, Brilliant article!