Description

The TDA1572 is an integrated AM receiver circuit designed for use in mains-fed home receivers and car radios. It performs all the active functions and part of the filtering required of a radio receiver. With a frequency range of up to 50 MHz and the ability to handle RF signals up to 500 mV, the TDA1572 offers high performance and minimal RF radiation and sensitivity to interference.

Specifications and features

Specifications:

• Inputs protected against damage by static discharge
• Gain-controlled RF stage
• Double balanced mixer
• Separately buffered, voltage-controlled and temperature-compensated IF stage
• Gain-controlled IF stage with wide AGC range
• Full-wave, balanced envelope detector
• Internal generation of AGC voltage with possibility of second-order filtration
• Buffered field strength indicator driver with short-circuit protection
• AF preamplifier with possibilities for simple AF filtering
• Electronic standby switch
• IF output for stereo demodulator and search tuning

Application Scenarios

The TDA1572 is ideal for use in mains-fed home receivers and car radios. It can be used in a variety of applications, including AM radio receivers and stereo demodulators.

Comparison

- Performs all active functions and part of the filtering required of a radio receiver

- Wide frequency range of up to 50 MHz

- Can handle RF signals up to 500 mV

- Minimal RF radiation and sensitivity to interference

- Provides signals with low distortion and high spectral purity

- May require additional band switching diodes for certain applications