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                                                Audio series product
                                                Model Input voltage Standby current Maximum frequency (Hz) Function Typical applications Encapsulation
                                                SP31101 1.8-9 2.7 200-3.5 K Speech companding chip Cordless telephone SOP16/DIP16
                                                SP571 6-18 3.2 15-20 K Speech companding chip Wireless microphone SOP16W/DIP16
                                                SP572 1.8-9 1.7 200-3.5 K Speech companding chip Cordless telephone SOP16W/DIP16
                                                SP5754.2 3-7 4.2 15-20 K Speech companding chip Wireless microphone SOP20/SSOP20
                                                SP1235 10 -14 22 10.7 M Intermediate frequency amplifier chip FMRadio SOP16/DIP16
                                                SP1140 7.5-16 21 10.7 M Intermediate frequency amplifier chip FMRadio SOP16/ZIP16
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