NXP Semiconductors TDA3845T
The TDA3845 is a quasi split-sound IF circuit which is designed to provide high performance television FM/AM sound.FEATURES
● Power supply from 5 V (200 mW) to 8 V source also an alternative 12 V source (12 V not for TDA3845T)● Gain controlled wideband IF amplifier (AC coupled with three stages)
● High precision internal 90° phase shifter for quadrature demodulator
● Amplitude detector for gain control which operates as a peak detector for FM sound and as a mean level detector for AM sound (switchable)
● In-phase wideband synchronous demodulator for AM detection TDA3845; TDA3845T
● Stabilizer circuit for ripple rejection and constant output signals
● ESD protection for all pins
● Suitable for all FM standards and L as well as L-accent standard
● NICAM compatible.
GENERAL DESCRIPTION
QUICK REFERENCE DATA SYMBOL VP1 VP2 IP V1-16(RMS) V12-13(RMS) (S +W)/W pin 14 pin 11 (not for TDA3845T) supply current minimum IF input voltage (RMS value) IF control range intercarrier output voltage 5.5 MHz (RMS value) signal-to-weighted-noise ratio (relative to 1 kHz; 50 kHz deviation) at 5.5 MHz for 2T/20T at 5.742...