LUCL9215AAU-D AGERE [Agere Systems], LUCL9215AAU-D Datasheet - Page 30

• Manufacturer Part Number: LUCL9215AAU-D
• Description: Short-Loop Sine Wave Ringing SLIC
• Manufacturer: AGERE [Agere Systems]

Short-Loop Sine Wave Ringing SLIC
Supervision
Power Ring
Sine Wave Input Signal and Sine Wave Power Ring Signal Output (continued)
During nonring modes, the sinusoidal ringing waveform may be left on at RING
will be removed from tip and ring even if the low-voltage input is still present at RING
considerations that should be made with respect to state changes which are detailed in the Switching Behavior of
L9215 Ringing SLIC Application Note.
PWM Input Signal and Sine Wave Power Ring Signal Output
A pulse-width modulated (PWM) signal may be used to provide the ringing input to RING
through a low-pass filter and ac-coupled into RING
tip and ring.
Table 23. Signal and Component Selection Chart
30
V
70 V
70 V
70 V
70 V
70 V
70 V
85 V
85 V
85 V
85 V
85 V
85 V
BAT
Figure 13. L9215/16 Ringing Input Circuit Selection Table for Square Wave and PWM Inputs
V
5 V
3 V
5 V
3 V
5 V
3 V
5 V
3 V
5 V
3 V
5 V
3 V
CC
(continued)
(continued)
10 kHz PWM 5 V
10 kHz PWM 3 V
90 kHz PWM 5 V
90 kHz PWM 3 V
10 kHz PWM 5 V
10 kHz PWM 3 V
90 kHz PWM 5 V
90 kHz PWM 3 V
5 V Square
3 V Square
5 V Square
3 V Square
Input
INPUT
12 k
10 k
10 k
10 k
10 k
7 k
7 k
7 k
7 k
4 k
4 k
4 k
R1
R
1
0.22 F
0.22 F
0.22 F
0.22 F
0.1 F
0.1 F
0.1 F
0.1 F
1 F
1 F
1 F
1 F
C1
IN
as shown below. This approach gives a sine wave output at
C
1
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
0.47 F
C
C2
2
RING
sine
sine
sine
sine
sine
sine
sine
sine
CF
1.3
1.3
1.3
1.3
L9215/16
IN
Typical 5 REN Ringing Voltage RMS
IN
. Via the state table, the ring signal
IN
. There are certain timing
IN
. The signal is applied
48 V
49 V
42 V
42 V
42 V
42 V
59 V
51 V
51 V
47 V
51 V
49 V
September 2001
Agere Systems Inc.
12-3578bF