IN5851N
Upon retuning off-hook, a negative transistion on the mute output will insure the
speech network is connected to the line. If the first key entry is either a * or #, the
number sequence stored on-chip will be outpulsed. Any other valid key entries
will clear the memory and outpulse the new number sequence.
______
PULSE
18
Pulse Output
The Pulse output is an open drain N-channel transistor designed to drive external
bipolar transistor. These transistor would normally be used to pulse the telephone
line by disconnecting and connecting the network. The IN5851N pulse output is
an open circuit during make and pulls to the GND supply during break.
MAXIMUM RATINGS*
Symbol
Parameter
Value
-0.3 to +6.2
-0.3 to VCC +0.3
500
Unit
V
V
mW
°C
VCC
VIN
PD
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
Power Dissipation in Still Air **
Storage Temperature
Tstg
-40 to +125
*
Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
**
Derating: -10 mW/° from 65°C to 70°C.
C
4
INTEGRAL [ INTEGRAL CORP. ]
