HT0638
Pin Configuration
TPG
HKS
GND
LS2
1
2
3
4
8
7
6
5
TP
CS
DP
LS1
top view
SO-8
Note:
See Package Outline section for dimensions.
Pin Description
TPG
TP
HKS
LS1
LS2
DP
CS
GND
Positive input side of a telephone line, typically Tip side.
Positive output side of a telephone line.
Hookswitch input. Connect HKS to TPG to turn on the electronic switch. Internally pulled low.
Line switch 1 input. Positive input turns on the electronic switch. Internally pulled low.
Line switch 2 input. Positive input turns on the electronic switch. Internally pulled low.
Dial pulse input. A low input turns off the electronic switch. Use for pulse dialing. Internally pulled high.
Current sense input. An external resistor connected between CS and TP sets the current limit. Short C
S
to TP if
current limiting is not used.
Device ground. Negative side of a telephone line, typically Ring side.
08/23/02
©2002 Supertex Inc. All rights reserved. Unauthorized use or reproduction prohibited.
4
1235 Bordeaux Drive, Sunnyvale, CA 94089
TEL: (408) 744-0100 • FAX: (408) 222-4895
www.supertex.com
SUPERTEX [ Supertex, Inc ]
