si2493 Silicon Laboratories, si2493 Datasheet - Page 4

• Manufacturer Part Number: si2493
• Description: V.92 Isomodem With Global Daa
• Manufacturer: Silicon Laboratories

Si2493
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Table 2. Loop Characteristics
(V
4
Parameter
Ambient Temperature
Si2493 Supply Voltage, Digital
Notes:
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. The Si2493 specifications are guaranteed when the typical application circuit (including component tolerance) and any
2. All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions.
3. The digital supply, VD, operates from 3.0 to 3.6 V.
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
Si2493 and any Si3018 are used. See "2. Typical Application Schematic" on page 11.
Typical values apply at nominal supply voltages and an operating temperature of 25 °C unless otherwise stated.
above the maximum.
1
A
=
2
2
0 to 70 °C for F-grade, T
3
Symbol
REN
V
V
V
V
V
V
V
V
V
I
I
I
F
LK
LP
LP
TR
TR
TR
TR
TR
TR
TR
RD
RD
R
Symbol
A
V
T
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
A
D
=
–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
= 20 mA, ILIM
Test Condition
= 20 mA, ILIM = 0
= 20 mA, ILIM = 1
= 60 mA, ILIM = 1
= 50 mA, ILIM = 1
Rev. 1.3
V
Test Condition
TR
RT = 0
RT = 1
= –48 V
G-grade
F-grade
1
= 0
Min
–40
3.0
0
Min
40
10
10
12
18
15
—
—
—
—
—
—
—
2
9
9
Typ
3.3
25
25
Typ
1.5
—
—
—
—
—
—
15
21
—
—
—
—
—
—
Max
3.6
Max
70
85
120
6.0
7.5
7.5
0.2
40
60
18
25
68
—
—
—
5
3
2
V
V
Unit
Unit
mA
mA
°C
µA
µA
Hz
RMS
RMS
V
V
V
V
V
V
V
V