TDA7317 - FIVE BANDS DIGITAL CONTROLLED GRAPHIC EQUALIZER

ST Microelectronics

Datasheet Details

Part number	TDA7317
Manufacturer	STMicroelectronics
File Size	175.34 KB
Description	FIVE BANDS DIGITAL CONTROLLED GRAPHIC EQUALIZER
Datasheet	TDA7317_STMicroelectronics.pdf

The TDA7317 is a monolithic, digitally controlled graphic equalizer realized in BiCMOS mixed technology.

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 ) (R2 ⋅C1 ) + (R2 ⋅ C2 ) 1 2π ⋅  √ (R1 ⋅ R2 ⋅ C1 ⋅ C2) If C1 is fixed, then: C2 = R2 = Q2 Av.
1.
Q2 1 2 π ⋅ C1 ⋅ fo ⋅ R1 = (Av.
1 ) ⋅ Q (Av.
1.

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Published: Apr 23, 2005 |