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MSM7570L-XX Datasheet(PDF) 4 Page - OKI electronic componets |
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MSM7570L-XX Datasheet(HTML) 4 Page - OKI electronic componets |
4 / 26 page 4/26 ¡ Semiconductor MSM7570L-01/02 PIN AND FUNCTIONAL DESCRIPTIONS AIN1+, AIN1–, AIN2, GSX1, GSX2 Transmits analog input and the output for transmit gain adjustment. AIN1– (AIN2) connects to the inverting input of the internal transmit amplifier. AIN1+ connects to the non-inverting input of the internal transmit amplifier. GSX1 (GSX2) connects to the internal transmit amplifier output. Refer to Fig.1 for gain adjustment. VFRO, AOUT+, AOUT–, PWI Receives analog output and the output for receive gain adjustment. VFRO is the receive filter output. AOUT+ and AOUT– are differential analog signal outputs which can directly drive ZL = 350 W + 120 nF or a 1.2 kW load. Refer to Fig.1 for gain adjustment. Figure 1 Analog Input/Output Interface Transmit Gain: VGSX2/Vi = (R2/R1) ¥ (R4/R3) AIN1– GSX1 R2 C1 to ENCODER R1 from DECODER Differential Analog Output Receive Gain: Vo/VFRO = 2 ¥ (R6/R5) ZL = 120 nF + 350 W AIN2 GSX2 R4 C2 R3 AOUT– PWI R6 VFRO R5 AOUT+ AIN1+ –1 – + – + – + C1 R1 R2 VREF SG Differential Sound Output ZL = 120 nF + 350 W SAO– –1 SAO+ +1 SELECT + – 10 mF 0.1 mF Differential Analog Input Vi VO |
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