Datasheet

MAX260/MAX261/MAX262
Microprocessor Programmable
Universal Active Filters
_______________________________________________________________________________________ 5
Pin Description
PIN
MAX260
MAX261/
MAX262
NAME FUNCTION
99V
+
Positive supply voltage
17 16 V
-
Negative supply voltage
18 17 GND
Analog Ground. Connect
to the system ground for
dual supply operation or
mid-supply for single sup-
ply operation. GND should
be well bypassed in single
supply applications.
11 11 CLK
A
Input to the oscillator and
clock input to section A.
This clock is internally
divided by 2.
12 12 CLK
B
Clock input to filter B. This
clock is internally divided
by 2.
8 8 CLK OUT
C l ock outp ut for cr ystal
and R- C osci l l ator op er ati on
19 18 OSC OUT
Connects to crystal or R-C
for self-clocked operation
PIN
MAX260
MAX261/
MAX262
NAME FUNCTION
5, 23 5, 23 IN
A
, IN
B
Filter inputs
1, 21 1, 21 BP
A
, BP
B
Bandpass outputs
24, 22 24, 22 LP
A
, LP
B
Lowpass outputs
3, 14 3, 20 HP
A
, HP
B
Highpass/notch/allpass
outputs
16 15 WR Write enable input
15, 13,
10, 7
14, 13,
10, 7
A0, A1,
A2, A3
Address inputs for f
0
and
Q input data locations
20, 6 19, 6 D0, D1
Data inputs for f
0
and Q
programming
2 OP OUT
Outp ut of uncom m i tted
op am p on M AX 261/
M AX 262 onl y. P i n 2 i s a no-
connect on the M AX 260.
4 OP IN
Inver ti ng i np ut of uncom -
m i tted op am p on M AX 261/
M AX 262 onl y ( noni nver ti ng
i np ut i s i nter nal l y connected
to g r ound ) . P i n 4 i s a no-
connect on the M AX 260.