Si306x
Table 2. Loop Characteristics
(VD = 3.0 to 3.6 V, TA = 0 to 70 °C for F/K-Grade, see Figure 1)
Parameter
Symbol
Test Condition
Min Typ Max Unit
DC Termination Voltage
VTR
IL = 20 mA, MINI = 11,
—
—
6.0
V
ILIM = 0, DCV = 00, DCR = 0
DC Termination Voltage
VTR
IL = 120 mA, MINI = 11,
9
—
—
V
ILIM = 0, DCV = 00, DCR = 0
DC Termination Voltage
VTR
IL = 20 mA, MINI = 00,
—
—
7.5
V
ILIM = 0, DCV = 11, DCR = 0
DC Termination Voltage
VTR
IL = 120 mA, MINI = 00,
9
—
—
V
ILIM = 0, DCV = 11, DCR = 0
DC Termination Voltage
VTR
IL = 20 mA, MINI = 00,
—
—
7.5
V
ILIM = 1, DCV = 11, DCR = 0
DC Termination Voltage
VTR
IL = 60 mA, MINI = 00,
40
—
—
V
ILIM = 1, DCV = 11, DCR = 0
On Hook Leakage Current
ILK
Operating Loop Current
ILP
Operating Loop Current
ILP
DC Ring Current
VTR = –48 V
MINI = 00, ILIM = 0
MINI = 00, ILIM = 1
—
—
3
µA
10
—
120
mA
10
—
60
mA
—
1.5
3
µA
Ring Detect Voltage*
Ring Detect Voltage*
Ring Frequency
Ringer Equivalence Number
VRD
VRD
FR
REN
RT = 0
RT = 1
13.5
19.35
15
—
15
21.5
—
—
16.5
23.65
68
0.2
Vrms
Vrms
Hz
*Note: The ring signal is guaranteed to not be detected below the minimum. The ring signal is guaranteed to be detected
above the maximum.
TIP
+
600 Ω
DAA
Line-side
VTR
IL
Device
10 µF
–
RING
Figure 1. Test Circuit for Loop Characteristics
Preliminary Rev. 0.9
5