PD: I added a little video of the Am radio circuit function! Attachments MAKE a 1.5V AM RADIO! - Step #3 Download Step 4: Making the Circuit and Testing... The PCB Making is not showed but whatever i add the pcb final circuit and the schematic in PDF. Note: is the version 2.0 o...
图16 收音机的原理框图Fig.16 Schematic diagram of a radio 本文中,收音机的硬件电路采用芯片CXA1691M芯片设计.由于在集成电路中不方便集成电容、电感和电阻等器件,因此在外围电路中需要添加相关器件,以实现电路的各种控制,如谐振、供电、滤波、耦合等功能. 图17 焊接收音机实物图Fig.17 Physical picture of welding...
The schematic shows two paths to the AM input (AMI, pin 10). The path originating with J33 is used on the evaluation board for conducted testing and is not needed as part of the true application circuit. The path originating from JP1 assumes a loop antenna will be used. JP1 is connect...
circuit into a sealed unit. To use the product detector (which requires no DC or AC voltage to operate) you have to change a jumper on the mode switch and re-route the BFO signal to the NBFM adapter socket. A marked up section of the schematic is provided. When the modifications are ...
Analog verification: - Verification using circuit simulators. Mixed/Signal Verification: - Connectivity testing between Digital and Analog design using very low level Analog behavioral model. Method 2: Using analog functional behavioral model developed in Verilog, VHDL or Verilog AMS language. Digital Ver...
AM receiver circuit using MK484 Notes. Assemble the circuit on a vero board. Use a 1.5V cell for powering the circuit. Never give more than 2V to the circuit. It will destroy the IC. The MK484 can be operated over a range of 150 KHz to 3 MHz. ...
From the layout in the photo, I recognize the IC, it's possibly Si4825, or a clone of it. By chance I used the same IC once, for a little toy radio for kids. The circuit diagram is attached, it's likely that most of the radio portion may be near-identical to the one on your...
If you prefer to have a tunable transmitter, consider the oscillator circuit below (second schematic). The AM radio oscillator coil will give excellent stability. Simply connect the output directly to the base of the leftmost NPN in the differential amplifier and adjust the 500 ohm potentiometer ...
Todd's solution to interfacing the Delco's internal top tuning board to the outboard AM_ST decoder was to solder a printed circuit board-mounted SMA socket directly to the tuner board. This socket was connected across the output pin from the 7.5kHz ceramic filter, and its ground pin, withou...
Todd's solution to interfacing the Delco's internal top tuning board to the outboard AM_ST decoder was to solder a printed circuit board-mounted SMA socket directly to the tuner board. This socket was connected across the output pin from the 7.5kHz ceramic filter, and its ground pin, withou...