ORBAN De-emphasis_Circuit 电路图.pdf

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1、5 5 4 4 3 3 2 2 1 1 DD CC BB AA (B) +15VDC (C) GND (E) -15VDC (R) R-CH OUT + (X) L-CH INPUT (N) L-CH OUT + (P) R-CH OUT - (Y) R-CH INPUT (M) L-CH OUT - (A) CHASSIS +15VDC -15VDC -15VDC +15VDC +15VDC -15VDC -15VDC -15VDC +15VDC -15VDC +15VDC +15VDC +15VDC -15VDC Title SizeDocument NumberRev Date:Shee

2、tof 8101B #7 CARD01 De-emphasis circuit orban 1525 Alvarado Street, San Leandro, CA 94577 USA tel: 510-351-3500 fax: 510-351-0500 drawn by: mwa B 11Wednesday, April 14, 2004 DE-EMPHASIS RESISTOR VALUES 50uS 75uS R702 18.2K 27.4K R703 49.9K 75.0K R709 18.2K 27.4K R710 49.9K 75.0K NOTES: (unless other

3、wise specified) 1. All resistors are 1/8W, 1%, MF 2. All capacitors are in microfarads FERRITE BEADS IC706 LT1010CH IN 1 V+ 2 V- 4 OUT 3 + - IC702B NE5532 5 6 7 84 R711 10.0K C705 0.1/50V C706 0.1/50V C707 0.1/50V R705 10.0K JP-B2 de-emphasis out 12 C708 0.1/50V + - IC702A NE5532 3 2 1 84 R710 SEE N

4、OTE R701 25K, 15T Left Output Attenuator 13 2 C710 10pF R702 SEE NOTE + - IC701A NE5532 3 2 1 84 IC705 LT1010CH IN 1 V+ 2 V- 4 OUT 3 JP-A1 de-emphasis in (as shipped) 12 JP-B1 de-emphasis in (as shipped) 12 + - IC701B NE5532 5 6 7 84 IC704 LT1010CH IN 1 V+ 2 V- 4 OUT 3 C712 10pF IC707 LT1010CH IN 1

5、V+ 2 V- 4 OUT 3 C711 10pF R703 SEE NOTE C701 1000pF1% R708 25K, 15T Right Output Attenuator 13 2 JP-A2 de-emphasis out 12 R709 SEE NOTE C709 10pF FERRITE BEADS FERRITE BEADS C702 1000pF1% +C703 100/25V +C704 100/25V R704 10.0K +C713 1/50V +C714 1/50V +C715 1/50V FERRITE BEADS +C716 1/50V R712 10.0K RadioFans.CN 收音机爱 好者资料库