cm8870s California Micro Devices Corporation, cm8870s Datasheet - Page 7

• Manufacturer Part Number: cm8870s
• Description: Cmos Integrated Dtmf Receiver
• Manufacturer: California Micro Devices Corporation

© 2001 California Micro Devices Corp. All rights reserved.
12/18/2001
215 Topaz Street, Milpitas, California 95035 
CALIFORNIA MICRO DEVICES
F
69 7
697
697
770
770
770
852
852
852
941
941
941
697
770
852
941
L OW
-
F
12 09
1336
1477
1209
1336
1477
1209
1477
1336
1209
1477
1633
1633
1633
1633
1336
HI GH
-
Figure 1. Single Ended Input Configuration
0.1µF
0.1µF
KEY
ANY
1
5
8
C
D
A
B
2
3
4
6
7
9
0
#
*
Figure 2. Functional Decode Table
L Logic Low, H = Logic, Z = High Impedance
100KΩ
100KΩ
F u n c ti o n a l Di ode T ab l e
Tel: [phone]
100KΩ
100KΩ
MHz
MHz
3.58
3.58
T O W
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
IN+
IN–
GS
V
INH
PD
OSC 1
OSC 2
V
IN+
IN–
GS
V
INH
PD
OSC 1
OSC 2
V
REF
SS
REF
SS
CM8870C
CM8870
All resistors are ±1% tolerance.
All capacitors are ±5% tolerance.
St/GT
St/GT
TOE
TOE
V
V
ESt
StD
ESt
StD
Q4
Q3
Q2
Q1
Q4
Q3
Q2
Q1
DD
DD
Q
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
Z
5V
5V
4
18
17
16
15
14
13
12
11
10
18
17
16
15
14
13
12
11
10
300KΩ
300KΩ
Fax: [phone]
0.1µF
0.1µF
Q
Z
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
3
Q
0
1
0
Z
1
0
0
1
1
0
1
1
0
0
1
1
0
2
CM8870/70C
www.calmicro.com
Q
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Z
1
7