W742S819
4-BIT TELEPHONE CONTROLLER
Table of content-
1.
2.
3.
4.
5.
6.
7.
GENERAL DESCRIPTION ......................................................................................................... 2
FEATURES ................................................................................................................................. 2
PIN CONFIGURATION ............................................................................................................... 3
PIN DESCRIPTION..................................................................................................................... 4
BLOCK DIAGRAM ...................................................................................................................... 5
ABSOLUTE MAXIMUM RATINGS ............................................................................................. 6
DC CHARACTERISTICS ............................................................................................................ 6
7.1
DC CHARACTERISTICS: VDD-VSS=3.0V .................................................................... 6
7.2
DC CHARACTERISTICS: VDD-VSS=3.6V .................................................................... 9
AC CHARACTERISTICS ............................................................................................................ 9
APPLICATIONS INFORMATION.............................................................................................. 10
9.1
Operating Voltage ......................................................................................................... 10
9.2
Drive Abilities of OP-AMPs ........................................................................................... 10
9.3
FSK Signal Detection and FSK Demodulation ............................................................. 10
9.3.1
9.3.2
FSK Signal Detection ...................................................................................................10
FSK demodulation ........................................................................................................10
8.
9.
10.
REVISION HISTORY ................................................................................................................ 11
-1-
Publication Release Date: Aug. 23, 2005
Revision A1