汽车音响内置音效IC TA8276HQ 歌乐机头OEM芯片电路图技术资料
TA8276HQVNO – Rg300 VCC = 13.2 V 0 VCC = 13.2 V 10 20 30 40 50 60 70 10 RL = 4 Rg = 620 Vrip = 0dBmR.R. – f(µVrms)Output noise voltage VNO200150100500 101001k10 kRipple rejection ratioR.R.(dB)RL = 4 250 BW = 20 Hz~20 kHz100 k1001k10 k100 kSignal source resistance Rg( )Frequency f(Hz)C.T. – f (OUT1)0 VCC = 13.2 V 10 VOUT = 0.775 Vrms (0 dBm) Rg = 620 10 0 VCC = 13.2 VC.T. – f (OUT2)VOUT = 0.775 Vrms (0 dBm) Rg = 620 RL = 4 Cross talk C.T. (dB) 20 30 40 50Cross talk C.T. (dB)OUT1 → OUT2, 3RL = 4 20 30 40 50 60 60 70 10 OUT1 → OUT4 100 1k 10 k 100 kOUT2 → OUT1 OUT2 → OUT3, 4 100 1k 10 k 100 k 70 10Frequency f(Hz)Frequency f(Hz)C.T. – f (OUT3)0 VCC = 13.2 V 10 RL = 4 VOUT = 0dBm Rg = 620 10 0 VCC = 13.2 V RL = 4 VOUT = 0dBm Rg = 620 C.T. – f (OUT4)Cross talk C.T. (dB) 30 40 OUT3 → OUT4 50 OUT3 → OUT1 60 70 10 OUT3 → OUT2 100 1k 10 k 100 kCross talk C.T. (dB) 20 20 30 40 50 60 70 10OUT4 → OUT3OUT4 → OUT1, 2 100 1k 10 k 100 kFrequency f(Hz)Frequency f(Hz)112004-05-10
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