Orban De-emphasis User Manual
5
4
3
2
1
JP-A1
de-emphasis in (as shipped)
C701
C707
0.1/50V
C708
0.1/50V
1000pF 1%
R703
SEE NOTE
+15VDC
-
2
+
3
8 4
-15VDC
C702
1000pF 1%
R710
SEE NOTE
+15VDC
-
2
+
3
8 4
-15VDC
+
C713
1/50V
C714
+
1/50V
4
IC701A
NE5532
IC702A
NE5532
+
+
1
1
D D
(X) L-CH INPUT
Left Output Attenuator
C C
(Y) R-CH INPUT
B B
A A
Right Output Attenuator
(B) +15VDC
(C) GND
(E) -15VDC
(A) CHASSIS
5
+
+
R701
25K, 15T
R708
25K, 15T
C703
100/25V
C704
100/25V
13
2
R702
SEE NOTE
13
2
R709
SEE NOTE
C705
0.1/50V
C706
0.1/50V
1 2
de-emphasis out
1 2
C709
10pF
+15VDC
-15VDC
de-emphasis in (as shipped)
1 2
de-emphasis out
1 2
C711
10pF
+15VDC
-15VDC
+15VDC
C715
1/50V
C716
1/50V
-15VDC
JP-A2
JP-B1
JP-B2
1
2
4
IC704
LT1010CH
1
2
4
IC707
LT1010CH
R705
+15VDC
+15VDC
1
2
4
IC705
LT1010CH
1
2
4
IC706
LT1010CH
IN
V+
V-
IN
V+
V-
10.0K
R712
10.0K
OUT
OUT
3
3
2
C710
10pF
IN
3
OUT
V+
V-
IN
OUT
V+
V-
R704
10.0K
3
R711
10.0K
3
-
6
7
+
5
IC701B
8 4
NE5532
-15VDC
C712
10pF
-
6
7
+
5
IC702B
8 4
NE5532
-15VDC
NOTES: (unless otherwise specified)
1. All resistors are 1/8W, 1%, MF
2. All capacitors are in microfarads
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
FERRITE BEADS
FERRITE BEADS
FERRITE BEADS
FERRITE BEADS
orban
1525 Alvarado Street, San Leandro, CA 94577 USA
tel: 510-351-3500 fax: 510-351-0500
www.orban.com ftp.orban.com
drawn by: mwa
Title
De-emphasis circuit
Size Document Number Rev
B
8101B #7 CARD 01
Date: Sheet
(N) L-CH OUT +
(M) L-CH OUT -
(R) R-CH OUT +
(P) R-CH OUT -
11Wednesday, April 14, 2004
1
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