CPC7582BC Clare, CPC7582BC Datasheet - Page 13

• Manufacturer Part Number: CPC7582BC
• Description: SWITCH LINE CARD ACCESS 16-SOIC
• Manufacturer: Clare

Specifications of CPC7582BC

• Function: Line Card Access Switch
• Number Of Circuits: 1
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 1.3mA
• Power (watts): 10mW
• Operating Temperature: -40°C ~ 110°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.5mm Width)
• Includes: Bounce-Free Switching, Switch Timing, Tertiary Protector
• Relay Type: Line Card
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -

Table” on page 10 and “CPC7582xC Truth Table” on
page 11.
To use make-before-break operation, change the logic
inputs to the talk state immediately following the
ringing state. Application of the talk state opens the
Break-before-make operation of the CPC7582xA/B
can be achieved using two different techniques.
The first method uses manipulation of the IN
and IN
“Break-Before-Make Operation CPC7582xA/B
(Ringing to Talk Transition)” on page 13.
1. At the end of the ringing state apply the all off
The second break-before-make method for the
CPC7582xA/B is also the only method available for
R05
Ringing
Ringing
Before-
before-
Break-
Make-
All-Off
State
break
State
Make
Talk
Talk
2.2.1 Make-Before-Break Operation - All Versions
2.2.2 Make-Before-Break Operation for All Versions (Ringing to Talk Transition)
2.2.3 Break-Before-Make Operation - CPC7582xA/B
state (0, 0). This releases the ringing return
2.2.4 Break-Before-Make Operation CPC7582xA/B (Ringing to Talk Transition)
2.2.5 Break-Before-Make Operation - All Versions
TEST
IN
IN
logic inputs as shown in
RINGING
RINGING
1
0
0
1
1
1
0
IN
IN
TEST
TEST
0
0
0
0
1
1
0
LATCH
LATCH
0
0
Floating
Floating
T
T
SD
SD
RINGING
SW4 waiting for next zero-current
crossing to turn off. Maximum time is
one-half of the ringing cycle. In this
transition state, current that is limited to
the dc break switch current limit value
will be sourced from the ring node of the
SLIC.
Hold this state for at least one-half of the
ringing cycle. SW4 waiting for zero
current to turn off.
Zero-cross current has occurred
www.clare.com
Close Break Switches
SW4 has opened
Timing
Timing
ringing return switch (SW3) as the break switches
(SW1 and SW2) close. The ringing switch (SW4)
remains closed until the next zero-crossing of the
ringing supply current. While in the make-before-break
state, ringing potentials in excess of the CPC7582
protection circuitry trigger levels will be diverted to
ground.
2. Hold the all off state for at least one-half of a
Break-before-make operation occurs when the ringing
switch opens before the break switches (SW1 and
SW2) close.
the CPC7582xC. As shown in “CPC7582xA/B Truth
Table” on page 10 and “CPC7582xC Truth Table” on
page 11, the bidirectional T
-
-
switch (SW3) while the ringing switch remains
on, waiting for the next zero current event.
ringing cycle to assure that a zero crossing event
occurs and that the ringing switch (SW4) has
opened.
Switches
Switches
Break
Break
Off
On
On
Off
Off
Off
On
SD
Ringing
Ringing
Return
Switch
Return
Switch
(SW3)
(SW3)
On
Off
Off
On
Off
Off
Off
interface disables all of
Ringing
Ringing
Switch
Switch
(SW4)
(SW4)
On
On
Off
On
On
Off
Off
CPC7582
Switches
Switches
Test
Test
Off
Off
Off
Off
Off
Off
Off
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