si2439-a-gm Silicon Laboratories, si2439-a-gm Datasheet - Page 7

• Manufacturer Part Number: si2439-a-gm
• Description: V.92 And V.34 Isomodem With Global Daa
• Manufacturer: Silicon Laboratories

Table 4. Loop Characteristics
(V
Parameter
DC Termination Voltage
DC Termination Voltage
DC Termination Voltage
DC Termination Voltage
DC Termination Voltage
DC Termination Voltage
DC Termination Voltage
On-Hook Leakage Current
Operating Loop Current
Operating Loop Current
DC Ring Current
Ring Detect Voltage
Ring Detect Voltage
Ring Frequency
Ringer Equivalence Number
Notes:
D
=
1. ILIM = U67, bit 9; DCV = U67, bits 3:2; MINI = U67, bits 13:12; DCR = U67, bit 7; RT = U67, bit 0.
2. The ring signal is guaranteed to not be detected below the minimum. The ring signal is guaranteed to be detected
3.0 to 3.6 V, T
above the maximum.
A
=
2
2
0 to 70 °C for F-grade, T
Si3018
Symbol
RING
REN
V
V
V
V
V
V
V
V
V
TIP
I
I
I
F
LK
LP
LP
TR
TR
TR
TR
TR
TR
TR
RD
RD
R
V
+
–
A
TR
DC current flowing through ring
DCV = 00, MINI = 11, DCR = 0
DCV = 00, MINI = 11, DCR = 0
DCV = 11, MINI = 00, DCR = 0
DCV = 11, MINI = 00, DCR = 0
DCV = 11, MINI = 00, DCR = 0
DCV = 11, MINI = 00, DCR = 0
DCV = 11, MINI = 00, DCR = 0
=
–40 to 85 °C for G-grade)
I
I
I
L
I
L
I
I
I
L
MINI = 00, ILIM = 0
MINI = 00, ILIM = 1
L
L
L
L
detection circuitry
= 120 mA, ILIM = 0
= 120 mA, ILIM = 0
10 µF
= 20 mA, ILIM
600 
Test Condition
= 20 mA, ILIM = 0
= 20 mA, ILIM = 1
= 60 mA, ILIM = 1
= 50 mA, ILIM = 1
Rev. 1.0
V
TR
RT = 0
RT = 1
= –48 V
1
= 0
I
Min
L
40
10
10
12
18
15
—
—
—
—
—
—
—
9
9
Typ
1.5
—
—
—
—
—
—
—
—
—
15
21
—
—
—
Si2494/39
Max
120
6.0
7.5
7.5
0.2
40
60
18
25
68
—
—
—
5
3
V
V
Unit
mA
mA
µA
µA
Hz
RMS
RMS
V
V
V
V
V
V
V
7