le75183 Zarlink Semiconductor, le75183 Datasheet - Page 19

• Manufacturer Part Number: le75183
• Description: Line Card Access Switch
• Manufacturer: Zarlink Semiconductor

APPLICATION
*Contact a Legerity Sales/Application representative for recommendations.
RING
TIP
R2
R1
Protection
Figure 8. Typical LCAS Application, A/C Versions, Idle or Talk State Shown
Crowbar
–V
SW9
SW10
Test Out
Test Out
Figure 7. Switches 6, 8
Zarlink Semiconductor Inc.
SW7
Ringing
Return
SW8
Ringing
Access
–V
Ring
Generator
Battery
Test Return
Ringing Test
OS
SW3 Break
Ringing
SW4 Break
SW5
SW6
19
+I
–I
+V
R
ON
OS
SW1
Test In
SW2
Test In
Circuit
& Trip
SCR
+V
VBAT
(Reference)
RING
TIP
Battery Feed