YSS247

The YSS247 is a stereo signal processing LSI with Yamaha's original wide surround "YMERSION" and tone control/loudness circuit.There are some features as follows.First is surrounded by amplitude phase conversion.The second is tone control and BASS (100 Hz±10 dB), TREBLE (10 K Hz±10 dB) recommended.Then is loudness: either tone control or loundness selectable.Next is wide operating voltage range from 3.0 V to 5.5 V.The last one is silicon gate CMOS process.

What comes next is about the absolute maximum ratings of YSS247.The AVDD (power supply voltage) is from AVSS-0.5 V to AVSS+0.7 V.The Vin (input voltage) is from AVSS-0.5 V to AVDD+0.5 V.The Vout (input voltage) is from AVSS-0.3 V to AVDD+0.3 V.The Tstg (storage temperature) is from -50 to +125.Then is about the recommended operating conditions.The minimum AVDD (power supply voltage) is 3.0 V,the typical is 5.0 V and the maximum is 5.5 V.The minimum Top (operating temperature) is 0, the typical is 25 and the maximum is 70.

The following is about the DC characteristics of YSS247 (conditions: Ta=25,VDD=5.0 V).The typical supply current is 10 mA at VDD=5.0 V.The typical analog input voltage is 1.0 Vrms.The typical analog output voltage is 1.0 Vrms.The typical signal noise ratio is 95 dB.The typical distortion rate is 0.0025% at 1 Vrms input wide,tone off.The maximum gain deviation is 0.5 dB.The minimum frequency characteristic is -3.0 dB and the maximum is 0.5 dB at 10 Hz to 50 kHz.The typical input impendance is 30 k.The maximum input capacitance is 15 pF.The typical center voltage is 2.5 V.