TEA5591A Philips Semiconductors (Acquired by NXP), TEA5591A Datasheet - Page 2

• Manufacturer Part Number: TEA5591A
• Description: TEA5591A; AM/FM Radio Receiver Circuit
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
GENERAL DESCRIPTION
The TEA5591A is a 24-pin integrated radio circuit, derived from the TEA5591 and is designed for use in AM/FM portable
radios and clock radios. The TEA5591A differs from the TEA5591 in that it has:
The main advantage of the TEA5591A is its ability to operate over a wide range of supply voltages (1.8 to 15 V) without
any loss of performance.
The AM circuit incorporates:
The FM circuit incorporates:
Features
PACKAGE OUTLINE
24-lead shrink DIL; plastic (SOT234); SOT234-1; 1996 September 9.
February 1990
Separate IF input pins for AM and FM
A split-up AM-IF stage (for distributed selectivity)
An LED driver indicator
A double balance mixer
A ‘one-pin’ oscillator with amplitude control operating in the 0.6 to 30 MHz frequency range
A split-up IF amplifier
A detector
An AGC circuit which controls the IF amplifier and mixer.
An RF input amplifier
A double balanced mixer
A ‘one-pin’ oscillator
Two IF amplifiers (for distributed selectivity)
A quadrature demodulator for a ceramic filter
Internal AFC
LED AM/FM indicator
A DC AM/FM switch facility
Three separate stabilizers to enable operation over a wide range of supply voltages (1.8 to 15 V)
All pins (except pin 10) are ESD protected
AM/FM radio receiver circuit
2
Product specification
TEA5591A