ULN2204A AM/FM Radio System Providing all radio functions except VHF tuning, the ULN2204A AM/FM radio system excels in low-cost applications requiring a minimal parts count and high performance. In the AM mode of operation, the device is a complete single conversion superheterodyne broadcast or shortwave receiver with AGC and peak envelope detection. In the FM mode, the ULN2204A operates as a high-gain IF amplifier/limiter and phase-shift detector. A simple dc switch is used to change the mode of operation.
A single resistor at the same pin will adjust the AM gain for optimal system performance The audio amplifier will work into any speaker load of 802 or greater. Class-B operation of the audio power amplifier yields high efficiency at the rated output with a very low quiescent power drain. Its output impedance is significantly less than 10. The ULN2204A will work with a wide range of supply voltages and is suitable for use in ac-powered table radios and in battery-powered (6 or 9 V) portable radios.
ULN2204 Pinout
ULN2204A Features
- Low Harmonic Distortion
- Wide Operating Voltage Range
- Low Power Drain
- DC AM/FM Switching
- 30 V Limiting Threshold
- Excellent AM Rejection
- Good Usable Sensitivity
Application
- Low-cost applications requiring a minimal parts count and high performance
You can download this datasheet for ULN2204A AM/FM Radio System – Datasheet from the link given below:
