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SI2401 데이터시트(PDF) 1 Page - List of Unclassifed Manufacturers

부품명 SI2401
상세설명  V.22BIS ISOMODEM WITH INTEGRATED GLOBAL DAA
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Preliminary Rev. 0.9 5/04
Copyright © 2004 by Silicon Laboratories
Si2401
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Si2401
V.22BIS ISOMODEM® WITH INTEGRATED GLOBAL DAA
Features
Applications
Description
The Si2401 ISOmodem® is a complete two-chip 2400 bps modem
integrating Silicon Labs’ third-generation direct access arrangement
(DAA), which provides a globally-programmable telephone line interface
with an unprecedented level of integration. Available in two 16-pin SOIC
packages, this compact solution eliminates the need for a separate DSP
data pump, modem controller, codec, isolation transformer, relay, opto-
isolators, and 2–4 wire hybrid. The Si2401 provides conventional data
formats at connect rates of up to 2400 bps, with full-duplex operation over
the Public Switched Telephone Network (PSTN). Additionally, the Si2401
is fully-programmable to meet global standards with a single design.
Other features include fast connect times for electronic point-of-sale
(EPOS) applications and alarm protocols for security systems. The device
is ideal for embedded modem applications due to its small size, low
external component count, and low power consumption.
Functional Block Diagram
Data modem formats
2400 bps: V.22bis
1200 bps: V.22, V.23, Bell 212A
300 bps: V.21, Bell 103
Fast connect and V.23 reversing
SIA and other security protocols
27 MHz CLKIN support
Caller ID detection and decode
UART with flow control
Integrated third-generation DAA
Fewer external components required
Over 5000 V capacitive isolation
Parallel phone detect
Globally-compliant line interface
AT command set support
Call progress support
3.3 V Power
Low-profile 16-pin SOIC package
Set-top boxes
Point-of-sale
ATM terminals
Security systems
Medical monitoring
Power meters
µ Controller
(AT Decoder,
Call Progress)
Control
Interface
Clock
Interface
DSP
(Data Pump)
RXD
TXD
RESET
EOFR/GPIO1
ESC/GPIO3
CD/GPIO2
INT/GPIO4
XOUT
XTALI
Si2401
Si3010
CTS
Hybrid,
AC and
DC
Terminations
Ring Detect
Off-Hook
IB
SC
DCT
VREG2
DCT2
DCT3
RNG1
RNG2
QB
QE
QE2
RX
Isolation
Interface
VREG
RI/GPIO5
U.S. Patent #5,870,046
U.S. Patent #6,061,009
Other patents pending
Ordering Information
See page 70.
Pin Assignments
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CLKIN/XTALI
XTALO
CTS
V
D
TXD
RXD
RESET
GPIO5/RI
GPIO1/EOFR
GPIO2/CD
GPIO3/ESC
V
A
GND
GPIO4/INT/AOUT
C1A
C2A
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
QE
DCT
VREG
IB
C2B
C1B
RNG1
RX
DCT2
IGND
DCT3
QB
QE2
SC
VREG2
RNG2
Si2401
Si3010


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