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ZXCD1210JB16TA Datasheet(PDF) 5 Page - Diodes Incorporated |
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ZXCD1210JB16TA Datasheet(HTML) 5 Page - Diodes Incorporated |
5 / 8 page ZXCD1210 Issue 2 - October 2007 5 www.zetex.com © Zetex Semiconductors plc 2007 Applications information The high performance ZXCD1210 modulator IC forms the heart of the Zetex series of analog input Class D amplifier reference designs. The modulator device provides complete control of the modulation function. Details of these reference designs are contained in individual data sheets: ZXCDSUBEV series, ZXCD50STEVAL and ZXCD100MOEVAL as well as the ZXCD series design guide. The ZXCDSUBEV series of reference circuits are specifically designed for subwoofer applications. These switching amplifiers owe much of their outstanding audio performance to a unique feedback architecture designed to reduce distortion. By taking its feedback signal from the filtered amplifier output, the high gain circuit design compensates for bridge mismatches and filter non- linearities, to achieve a reduction in THD+N across the entire power band. ZXCDSUBEV series architecture ZXCDSUBEV series THD+N versus power PWM output Output bridge Filter Audio input Gate driver + - DC Servo AC comp network Feedback circuits Bridge supply Input buffering and bias Mute ZXCD1210 + - DC Servo AC comp network Feedback circuits Mute ZXCD1210 0.02 0.3 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 100m 500 200m 500m 1 2 5 10 20 50 100 200 Output Power (W) 0.02 0.3 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 0.28 100m 500 200m 500m 1 2 5 10 20 50 100 200 Output Power (W) |
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