MH88422
Change Summary
Changes from August 2006 Issue to August 2008 Issue.
Page
1
Item
Change
Updated Ordering Information.
Data Sheet
VDD
IC
AGND
IC
LC
IC
RVLC
IC
IC
IC/NP
VX
IC/NP
VR
1
2
3
4
5
6
7
8
9
10
11
12
13
26
25
24
23
22
21
20
19
18
17
16
15
14
TIP
IC
RLS
IC/NP
IC
IC/NP
TF
NP
TXIN
IC
RING
NP
IC
Figure 2 - Pin Connections
Pin Description
Pin #
1
2, 4, 6, 8,
9
3
5
7
10, 12
11
13
14, 17
15, 19
16
18
20
21
Name
VDD
IC
AGND
LC
RVLC
NP
VX
VR
IC
NP
RING
TXIN
TF
IC/NP
Positive Supply Voltage.
+5 V.
Internal Connection.
This pin is cropped short.
Analog Ground.
4-Wire Ground. Normally connected to System Ground.
Loop Control (Input).
A logic 0 activates internal circuitry which provides a line termination
across Tip and Ring. Used for seizing the line and dial pulsing.
Ringing Voltage and Current Detect (Output).
Indicates the status of loop current and
ringing voltage.
No Pin Fitted.
Transmit (Output).
Analog output to modem/fax chip set.
Receive (Input).
Analog input to modem/fax chip set.
Internal Connection.
This pin is cropped short.
No Pin Fitted.
Ring Lead.
Connects to the "Ring" lead of a telephone line.
Dummy Ringer Connection.
Connects to the "Ring" lead of a telephone line through a dummy
ringer capacitor.
Tip Feed.
Connects externally to the RLS pin.
No Pin Fitted.
Description
2
Zarlink Semiconductor Inc.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
