SI2457-C-FT Silicon Laboratories Inc, SI2457-C-FT Datasheet - Page 4

• Manufacturer Part Number: SI2457-C-FT
• Description: IC ISOMODEM SYSTEM-SIDE 24TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI2457-C-FT

• Package / Case: 24-TSSOP
• Mfg Application Notes: SI2493/57/34/15/04, Appl Note AN93
• Data Format: V.21, V.22, V.23, V.32, V.34, V.90, Bell 103, Bell 212A
• Baud Rates: 56k
• Interface: Parallel, UART
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Operating Frequency: 4.92 MHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current: 26 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Table 1. Recommended Operating Conditions
Si2457/34/15/04-Si3008
1. Electrical Specifications
4
Parameter
Ambient Temperature
Si2457/34/15/04 Supply Voltage,
Digital
Notes:
Table 2. Loop Characteristics
(V
Parameter
DC Termination Voltage
DC Termination Voltage
On-Hook Leakage Current
Operating Loop Current
DC Ring Current
Ring Detect Voltage
Ring Frequency
Ringer Equivalence Number
Notes:
D
1. The Si2457/34/15/04 specifications are guaranteed when the typical application circuit (including component tolerance)
2. All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions.
3. The digital supply, V
=
1. The ring signal is guaranteed to not be detected below the minimum. The ring signal is guaranteed to be detected
3
3.0 to 3.6 V, T
and any Si2457/34/15/04 and any Si3008 are used. See "2. Typical Application Schematic" on page 10.
Typical values apply at nominal supply voltages and an operating temperature of 25 °C unless otherwise stated.
supports 3.3 V logic only).
above the maximum.
1
A
=
1
0 to 70 °C for K-Grade)
D
, operates from 3.0 to 3.6 V. The Si2457/34/15/04 interface supports 5 V logic (CLKIN/XTALI
Symbol
REN
V
V
V
I
I
F
LK
LP
RD
TR
TR
R
Symbol
V
T
DC current flowing through ring
A
D
Preliminary Rev. 0.7
detection circuitry
Test Condition
V
I
I
L
TR
Test Condition
L
= 120 mA
= 20 mA
= –100 V
F-Grade
Min
3.0
0
Min
15
10
15
—
—
—
—
9
2
Typ
3.3
17.2
25
Typ
6.8
1.5
15
—
—
—
—
Max
Max
120
7.7
0.2
3.6
70
—
12
35
68
5
2
V
Unit
mA
Unit
µA
µA
Hz
RMS
V
V
°C
V