CD Datasheet – 1-Chip FM Electrical Tuner IC, pdf, pinout, equivalent, replacement, schematic, manual, data, circuit, parts, datasheet. The YD is a bipolar integrated circuit for use in mono portable and pocket radios. It is used when a minimum of peripheral components (of. cd datasheet, cd datasheets, cd pdf, cd price, cd buy, cd stock.
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I have also had issues in getting the stations in the right place on the dial.
CDCB Даташит – Monolithic Power FM radio tuner – Datasheetcom
January 17, at 5: November 10, at 3: In fact, the case even has a few curves to make it look just that little bit more stylish. Medium sized flat-blade screwdriver to push the spring terminals into the casing. Note the temptation to use hot-air reflow techniques. It seems to have a lacquer finish to stop the pads from oxidising, but is not otherwise tinned nor plated.
But at least they did provide the jack. Take care with the ceramic disc capacitors not to lose them as some are extremely small. I have found the AM section to be very un-selective.
The AM rod antenna connections can be made by looping out the enamelled wire over the top of the PCB is best and tack soldering the ends to AM terminals.
As mentioned, the instructions were all in Chinese. Take the time to align the IC in the correct position and solder opposing pins. To adjust the FM alignment, you need to use a flat blade screwdriver and adjust the right brass screw on the rear of the variable capacitor i. Turn the tuning dial to a known station location, and if you have a second radio, have it playing the same station.
This post will be a little review of the kit, along with tips and hints especially for English speaking constructors. A flat bladed screwdriver helps. Rather nicely, the PCB is a single sided paper-type board with silkscreening on both sides which is very descriptive, and solder mask on the rear.
Getting datashset this stage takes about an hour. April 25, at datqsheet In the case of this kit, this specifically includes: Superglue is not preferable because it cracks when the case is flexed, but should still work somewhat adequately.
Ordering two ensures that you have some spares in case things do go wrong …. February 5, at 7: Once that is dialled in, the unit has been tuned and the radio should now be somewhat functional.
The plastic casing is light, slightly weak to flexing and has a tendency to resonate at certain frequencies causing a buzzing sound at higher volumes. Next, try to datassheet the case hooking over the headphone out jack first, and then clipping in the tuning dial side.
Project: Paeansonic CF210SP CD9088+CD7642 AM/FM Radio Kit
For tuning drilled the back for access to adj screws on tuning capacitor. I wonder if adding some holes in the back of the case would help. March 23, at November 10, at 6: Small flat-blade screwdriver to perform the variable-cap tuning procedure. If I was doing this again, as I did for my second kit, I would populate the resistors before the capacitors mainly because the clearance to get resistors flush on the board is limited once the capacitors are installed.
Filtering is achieved with the external components — mainly R-C filters. I was aware of the Tecsun 2P3 which looks to be a very nice kit, but a bit on the pricey side for an AM only radio. The next step was to mount the hardware — the headphone jack, the variable capacitor, the volume switch and the band switch.
I actually tried this on my second kit and it was a disaster. The best rule of thumb when assembling circuit boards is to start with the lowest height components and progress to the tallest ones.
CD9088CB Даташит — Monolithic Power FM radio tuner
Cool kit and fun to build. I agree about the SMD Hot air re-flowing. After all, it shows just how numbers and drawings can easily transcend the ce9088 barrier. The FM antenna also needs to have a wire connected to it.
The AM reception is as per most TRF receivers — not particularly high quality and it seems that this is prone to overload. You can remove the self-adhesive backing from the front window and apply it to the front of the casing, checking the orientation.
Well, it took 2 dtaasheet for my kit to arrive, the PCB was bowed, and some of the caps were illegible, but it worked on the first try. A capacitor is hence a 10 pF capacitor, or 0. You might get static, or nothing.
Insert the ferrite rod into the end to check the fit, then glue to the rod into the holder.