TDA7317 Datasheet - ST Microelectronics

TDA7317 FIVE BANDS DIGITAL CONTROLLED GRAPHIC EQUALIZER

The TDA7317 is a monolithic, digitally controlled graphic equalizer realized in BiCMOS mixed technology. The stereo signal, before any filtering, can be atBLOCK DIAGRAM SDIP30 ORDERING NUMBER: TDA7317 tenuated up to -17.625dB in 0.375dB step. All the functions can be programmed via serial bus maki.

TDA7317 Features

* of each band pass filter are reported: fo = center frequency Gv = gain/loss at the center frequency fo Gv = 20log(Av) Fig. 1 Q= fo f2

* f1 where f2, f1 = 3dB Bandwidth limits. Av = (R2 ⋅ C2 ) + (R2 ⋅ C1 ) + (R1 ⋅ C1 ) (R2 ⋅ C1 ) + (R2 ⋅ C2 ) Q= fo = √  (R1 ⋅ C1 ⋅ R2 ⋅ C2 )

TDA7317_STMicroelectronics.pdf