Data Sheet
April 2000
L8560 Low-Power SLIC with Ringing
14
Lucent Technologies Inc.
Electrical Characteristics
(continued)
Table 7. Analog Pin Characteristics
1. Loop closure threshold is programmed by resistor R
LCTH
from pin LCTH to pin DCOUT.
2. Ring ground threshold is programmed by resistor R
ICM2
from pin ICM to V
CC
.
3. This parameter is not tested in production. It is guaranteed by design and device characterization.
4. I
N
is the sourcing current at RTSN. Guaranteed if I
N
is within 5
μ
A to 30
μ
A.
Table 8. Uncommitted Op Amp Characteristics (44-Pin PLCC Only)
Parameter
Min
Typ
Max
Unit
Differential PT/PR Current Sense (DCOUT):
Gain (PT/PR to DCOUT)
Offset Voltage @ I
LOOP
= 0
Loop Closure Detector Threshold
1
:
Programming Accuracy at 10 mA
Ring Ground Detector Threshold
2
:
R
ICM
= 83 k
Programming Accuracy
Ring Trip Comparator:
Input Offset Voltage
3
Internal Voltage Source (L8560A/D/E/F)
Internal Voltage Source (L8560C)
Current at Input RTSP
4
RCVN, RCVP:
Input Bias Current
Loop Closure Detector Hysteresis
Variation
THD
3
at V
PT/PR
= 2.2 Vrms, V
OH
= 12 V, Z
T
= 200
VITR Output Impedance
VITR Output Offset Voltage
Average/dc Current to FB1 and FB2
Tested as:
(|FB1 (FB) (–5 V)| + |FB1 (FB) (–63 V)| + 2|FB1 (FB) (–35 V)| +
|FB2 (FB) (–5 V)| + |FB2 (FB) (–63 V)| + 2|FB2 (FB) (–35 V)| +
|FB1 (RB) (–5 V)| + |FB1 (RB) (–63 V)| + 2|FB1 (RB) (–35 V)| +
|FB2 (RB) (–5 V)| + |FB2 (RB) (–63 V)| + 2|FB2 (RB) (–35 V)|)/16
Accuracy
—
–200
–41.7
—
—
200
V/A
mV
—
—
±20
%
3
—
6
—
10
±25
k
%
—
–8.6
–6.1
I
N
– 0.5
±10
–8.2
–5.7
I
N
—
–7.6
–5.1
I
N
+ 0.5
mV
V
V
μ
A
—
—
—
—
–0.2
2
15
—
–1
—
—
–35
μ
A
mA
%
dB
—
—
—
5
20
29
—
—
—
mV
μ
A
—
—
±8
%
Parameter
Min
—
—
—
—
—
—
—
Typ
±5
±10
200
1.5
±3.5
2.0
700
Max
—
—
—
—
—
—
—
Unit
mV
nA
nA
M
Vpk
kHz
Input Offset Voltage
Input Offset Current
Input Bias Current
Differential Input Resistance
Output Voltage Swing (R
L
= 10 k
)
Output Resistance (A
VCL
= 1)
Small-signal GBW