CPC7582 Datasheet, PDF (7/12 Pages) Clare, Inc. – Line Card Access Switch

CPC7582
Table 9. Truth Table
Input
0V
5V
0V
5V
Don’t
Care
Access
TSD
Tip Break
Switch
0V
5V/Float⁵
On
0V
5V/Float⁵
Off
5V
5V/Float⁵
Off
5V
5V/Float⁵
Off
Don’t
0V⁶
Off
Care
Ring
Break
Switch
On
Off
Off
Off
Off
1 _{Idle/Talk State}
2 _{Power Ringing State}
3 _{Test out message waiting state.}
4 _{All OFF State}
5 _{If TSD = 5V, the thermal shutdown mechanism is disabled.}
If TSD if floating, the thermal shutdown mechanism is active.
6 _{Forcing TSD to ground overrides the logic input pins and forces an all off state.}
Ringing
Return
Switch
Off
On
Off
Off
Off
Ring
Switch
Off
On
Off
Off
Off
Tip
Access
Switch
Off
Off
On
Off
Off
Ring
Access
Switch
Off¹
Off²
On³
Off⁴
Off⁴
Package Pinout
CPC7582
1
F_GND
T_BAT ²
T_LINE ^{3 SW1}
T_RING ⁴
SW3
T_ACCESS ⁵
V_DD
SW5
6
TSD ⁷
D_GND ⁸
SCR
and
Trip
Circuit
16 _VBAT
15 _RBAT
SW2 _{14 RLINE}
13 _RRING
SW4
12
R_ACCESS
SW6
11
LATCH
10
IN_RING
9
IN_ACCESS
* Only the CPC7582BA contains the protection SCR.
Pin
Name
Function
1
F_GND
Fault ground
2
T_BAT
Connect to TIP on SLIC side
3
T_LINE
Connect to TIP on line side
4
T_RING
Connect to return ground for ringing
generator
5
T_ACCESS
Test access
6
V_DD
+5V supply
7
TSD
Temperature shutdown pin. Can be
used as a logic level input or output.
See Tables 6, 7 and 9 for more
details. As an output, will read +5V
when device is in its operational mode
and 0V in the thermal shutdown mode.
To disable the thermal shutdown
mechanism, tie this pin to +5V
(NOT Recommended).
8
D_GND
Digital ground
9
IN_ACCESS
Logic level switch control
10
IN_RING
Logic level input switch control
11
LATCH
Data latch control, active high,
transparent low
12
R_ACCESS
Test access
13
R_RING
Connect to ringing generator
14
R_LINE
Connect to RING on line side
15
R_BAT
Connect to RING on SLIC side
16
V_BAT
Battery voltage. Used as a reference
for protection circuit
Rev. 1.0
www.clare.com
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