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PRODUCT SPECIFICATION
RC6601
3
K
Q
Q
Q
1
1
2
A
, K
= 5.67
= 1.1776
= 0.691
2
= 0.09293
w
w
R
R
Z1
Z2
3
A
= 1.415
= 2.0733
= 0.59678
= 1.323
w
c
w
w
c
w
w
w
1
2
A
= 1.046
= 0.855
= 1.44868
w
w
c
c
c
c
w
c
w
where
e.g. for default filter:
Scaling bias currents directly scales the frequency
w
c
= cut off frequency (in radians)
w
c
= 2
p
(5.5)10
6
= 34.5575 x 10
6
w
c
Figure 1b. Internal Programming Architecture
Pin Assignments
Pin Descriptions
Note:
V
COM
pin is typically connected to ground for
±
5V supply.
Pin Name
GND
IN
NC
OUT
R
OS1
R
OS2
V
CC
V
COM
V
EE1
V
EE2
V
F
V
REF
V
TRIM
Pin Number
7
2
4–6, 10
15
11
12
16
3
1
14
9
8
13
Description
Supply Ground
Signal Input
No Connect
Signal Output
Offset Adjust 1
Offset Adjust 2
Positive Supply Voltage
Common Mode Input Voltage (See Note)
Negative Supply Voltage (Input Section)
Negative Supply Voltage (Output Section)
Filter Control Voltage for Cut-off Frequency
Precision Reference Voltage
Pass Band Peaking Voltage
IN
K1(s2 +
w
z12)
s2 + (
w
1/Q1)s +
w
12
K2(s2 +
w
z22)
s2 + (
w
2/Q2)s +
w
22
R3
s + R3
s2 – (
w
A/QA)s +
w
A2
s2 + (
w
A/QA)s +
w
A2
s – RA
s + RA
OUT
Bias
Current Generator
V
REF
V
F
Ref.
Gen.
65-6601-03
GND
V
CC
V
TRIM
V
EE1
IN
V
COM
NC
NC
NC
GND
V
REF
V
CC
OUT
V
EE2
V
TRIM
R
OS2
R
OS1
NC
V
F
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
65-6601-04