TDA7409 - ST Microelectronics

TDA7409 CARRADIO-SIGNAL-PROCESSOR

The TDA7409 is a high performance signal processor specificall designed for car radio applications. The device includes a high performance audioprocessor with fully integrated audio filters. The digital control allows a programming in a wide range of all the filter characteristics. By the use of a BICMOSBLOCK DIAGRAM process and a linear signal processing l.

Features

Input Multiplexer 4 single-end stereo inputs In-Gain 0..14dB, 1dB steps, 14..20dB, 2dB steps Auto Zero internal Beep with 3 frequencies 781Hz/1.56KHz/1.8KHz 4 step-mixing-stage with mono or beep as mix-signals second order frequenciy response programmable center frequency 15 x 1dB steps selectable low & high frequency boost selectable flat-mode (constant sttenuation) 1 dB attenuator 100dB range soft-step control with programmable times 2nd order frequency response center frequency programmable in 4 steps 60Hz/80Hz/100Hz/200Hz Q programmable 1.0/1.25/1.5/2.0 DC gain programmable +15dB x 1dB s.