V-Tec AT16/C5 Dokumentacja Strona 5

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Si2400
Rev. 1.3 5
Table 2. Loop Characteristics
(V
D
= 3.0 to 5.25 V, T
A
= 0 to 70°C for K-Grade and –40 to 85°C for B-Grade, See Figure 1)
Parameter Symbol Test Condition Min Typ Max Unit
DC Termination Voltage V
TR
I
L
=20 mA, ACT
1
=1
b
DCT = 11
b
(CTR21)
——7.5V
DC Termination Voltage V
TR
I
L
=42 mA, ACT=1
b
DCT = 11
b
(CTR21)
——14.5V
DC Termination Voltage V
TR
I
L
=50 mA, ACT=1
b
DCT = 11
b
(CTR21)
——40 V
DC Termination Voltage V
TR
I
L
=60 mA, ACT=1
b
DCT = 11
b
(CTR21)
40 V
DC Termination Voltage V
TR
I
L
=20 mA, ACT=0
b
DCT = 01
b
(Japan)
——6.0V
DC Termination Voltage V
TR
I
L
=100 mA, ACT=0
b
DCT = 01
b
(Japan)
9—V
DC Termination Voltage V
TR
I
L
=20 mA, ACT=0
b
DCT = 10
b
(FCC)
——7.5V
DC Termination Voltage V
TR
I
L
=100 mA, ACT=0
b
DCT = 10
b
(FCC)
9—V
DC Termination Voltage V
TR
I
L
=15 mA, ACT=0
b
DCT = 00
b
(Low Voltage)
——5.2V
On Hook Leakage Current
2
I
LK
V
TR
= –48V 7 µA
Operating Loop Current I
LP
FCC/Japan Modes 13 120 mA
Operating Loop Current I
LP
CTR21 Mode 13 60 mA
DC Ring Current
2
DC current flowing
through ring detection
circuitry
—— 7 µA
Ring Detect Voltage
3
V
RD
RT = 0
b
11 22 V
RMS
Ring Detect Voltage
3
V
RD
RT = 1
b
17 33 V
RMS
Ring Frequency
4
F
R
15 68 Hz
Ringer Equivalence Number
5
REN 0.2
Notes:
1. SF[4] (ACT); SF5[3:2] (DCT); SF5[0] (RT).
2. R25 and R26 installed.
3. The ring signal is guaranteed to not be detected below the minimum. The ring signal is guaranteed to be detected
above the maximum.
4. The Si2400 ring detector can be programmed to detect rings between this range.
5. C15, R14, Z2, and Z3 not installed. SF5[1] (RZ) = 0
b
. See "Ringer Impedance" on page 80.
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