lmc835 National Semiconductor Corporation, lmc835 Datasheet - Page 11

• Manufacturer Part Number: lmc835
• Description: Digital Controlled Graphic Equalizer
• Manufacturer: National Semiconductor Corporation

Typical Applications
Z1
Z2
Z3
Z4
Z5
Z6
Z7
Z8
Z9
Z10
Z11
Z12
f
o
31 5
125
250
500
16k
32k
16
63
1k
2k
4k
8k
(Hz)
TABLE II Tuned Circuit Elements
0 0068m
0 0033m
0 0015m
12 Band Equalizer Application
LMC835 Gain vs Frequency
(All Boost or Cut)
12 Band Equalizer Application
LMC835 Gain vs Frequency
(All Boost or Cut)
Q
0 047m
0 022m
C
0 39m
0 22m
0 01m
3 3m
0 1m
0
15m
o
1m
g
g
e
(F)
6 dB Range
4 7 Q
12 dB Range
12 dB
0 0047m
0 0022m
0 068m
0 033m
0 015m
0 001m
C
0 47m
0 22m
0 01m
680p
470p
0 1m
L
(F)
(Continued)
e
Performance Characteristics (Circuit of Figure 9)
1 4
R
100k
110k
100k
100k
110k
L
91k
82k
82k
91k
82k
62k
68k
(X)
R
680
680
680
680
680
680
680
680
680
680
680
510
o
(X)
11
FIGURE 10 Tuned Circuit for
12-Band Equalizer ( Figure 9 )
LMC835 12 Band E Q Application
Gain vs Frequency
(1 kHz Boost or Cut)
LMC835 12 Band E Q Application
Gain vs Frequency
(1 kHz Boost or Cut)
g
g
12 dB Range
6dB Range
L
f
Q
Q
0
0
0
12 dB
e
e
e
2
C
0
q
L
e
0
C
R
1
L
0
R
0
L
L
R
C
0
0
R
R
0
0
a
0
2
0
Q
1590
TL H 6753 – 15
0
TL H 6753 – 16