LUCL9311AP-D AGERE [Agere Systems], LUCL9311AP-D Datasheet - Page 18

• Manufacturer Part Number: LUCL9311AP-D
• Description: Line Interface and Line Access Circuit Full-Feature SLIC with High Longitudinal Balance, Ringing Relay,and GR-909 Test Access
• Manufacturer: AGERE [Agere Systems]

Ringing Relay, and GR-909 Test Access
Electrical Characteristics
Ring Trip Detector
Table 6. Ring Trip Detector
1. The ringing source may be either of the following:
2. NDET must also indicate ring trip when the ac ringing voltage is absent (<5 Vrms) from the ringing source.
3. Pretrip ringing must not be tripped by a 10 k
18
Voltage at Input that will Cause Ring Trip After Appropriate
Voltage at Input that will Cause Immediate Ring Trip
Ringing Source
Ring Trip (NDET = 0)
Zero Crossings
a.) The ringing source consists of the ac and dc voltages added together (battery-backed ringing); the ringing return is ground.
b.) The ringing source consists of only the ac voltage (earth-backed ringing); the ringing return is the dc voltage.
Frequency (f)
dc Voltage
ac Voltage
Loop Resistance
Trip Time
NDET Valid
1
:
2, 3
:
Parameter
(continued)
resistor in parallel with an 8 µF capacitor applied across tip and ring.
–39.5
2000
±2.5
Min
±12
19
60
—
—
Typ
±15
±3
20
—
—
—
—
—
Max
±3.5
±18
–57
105
200
28
80
—
Agere Systems Inc.
July 2001
Vrms
Unit
ms
ms
Hz
V
V
V