CPC7583BA Clare, CPC7583BA Datasheet - Page 15

• Manufacturer Part Number: CPC7583BA
• Description: SWITCH LINE CARD ACCESS 28-SOIC
• Manufacturer: Clare

Specifications of CPC7583BA

• Function: Line Card Access Switch
• Number Of Circuits: 1
• Voltage - Supply: 4.5 V ~ 5.5 V
• Current - Supply: 700µA
• Power (watts): 10.5W
• Operating Temperature: -40°C ~ 110°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC (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: -

20 Hz ringing hold this input state for 25 ms. During
this hold period, toggle the inputs from the ringing
state to the talk state. After the 25 ms, release T
return switch control to the input pins IN
IN
2.3 Alternate Break-Before-Make Operation
Note that break-before-make operation can also be
achieved using T
table
Transition)” on page
pins to force the all-off state, force T
overrides the logic inputs and also forces the all off
state. Hold this state for one-half of the ringing cycle.
During this T
from the power ringing state (IN
IN
IN
release T
which will set the talk state.
R06
Ringing
Ringing
before-
Make-
RINGING
State
break
State
All off
All off
TESTOUT
TESTIN
Talk
Talk
2.2.1 Make-Before-Break Operation (Ringing to Talk Transition)
2.2.2 Break-Before-Make Operation (Ringing to Talk Transition)
“Break-Before-Make Operation (Ringing to Talk
= 0, IN
SD
IN
IN
, IN
= 0) to the talk state (IN
RINGING
RINGING
to return switch control to the input pins
SD
1
0
0
1
1
1
0
TESTin
forced all-off state, change the inputs
TESTOUT
SD
15, instead of using the logic input
IN
IN
as an input. In lines 2 and 3 of the
and the latch control pin.
TESTIN
TESTIN
0
0
0
0
0
0
0
= 0). After the hold period,
IN
IN
TESTOUT
TESTOUT
RING
0
0
0
0
1
1
0
RING
SD
= 1, IN
to ground. This
Latch
Latch
TESTout
= 0,
0
0
TESTIN
,
Floating
Floating
Floating
Floating
Floating
Floating
Floating
SD
T
T
= 0,
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SD
SD
to
SW4 waiting for next
zero-current crossing to turn
off. Maximum time is one-half
of ringing. 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 one-half of
ringing cycle. SW4 waiting for
zero current to turn off.
Zero current has occurred.
Zero-cross current has
Close break switches
SW4 has opened
2.4 Data Latch
The CPC7583 has an integrated data latch. The latch
operation is controlled by logic-level input at the
LATCH pin. The data input of the latch are the input
pins, while the output of the data latch is an internal
node used for state control. When the LATCH control
pin is at logic 0, the data latch is transparent and data
control signals flow directly through to state control. A
change in input will be reflected by a change in switch
state. When the LATCH control pin is at logic 1, the
data latch is active and a change in input control will
not affect switch state. The switches will remain in the
position they were in when the LATCH changed from
occurred
Timing
Timing
-
-
Switches
Switches
1 and 2
1 and 2
Break
Break
Off
On
On
Off
Off
Off
On
Switch 3
Switch 3
Return
Return
Ring
Ring
On
Off
Off
On
Off
Off
Off
Switch 4
Switch 4
Access
Access
Ring
Ring
On
On
Off
On
On
Off
Off
CPC7583
Switches
Switches
All Other
All Other
Test
Test
Off
Off
Off
Off
Off
Off
Off
15