參數(shù)資料
型號(hào)： SI2494-A-GM
廠商： Silicon Laboratories Inc
文件頁(yè)數(shù)： 1/70頁(yè)
文件大?。?/td> 0K
描述： IC ISOMODEM 56KBPS 38-QFN
標(biāo)準(zhǔn)包裝： 364
系列： *
Rev. 1.0 7/11
Copyright 2011 by Silicon Laboratories
Si2494/39
Ordering Information
This data sheet is valid only for
those chipset combinations listed
Pin Assignments
N/C
GPIO24, D4
GPIO25, D3
GP
IO
1
6,D2
GP
IO
1
7,D1
GP
IO
1
8,D0
INT
CLKIN/X
T
ALI
XT
ALO
N/C
EE
C
L
K
VDD
ESC, D5
DCD, D6
GND
N/C
RTS, SS, D7
TXD, MOSI, WR
RXD, MISO, RD
CTS, SCLK, CS
C1
A
C2
A
AO
UT
b
RI
EECS
FSYNC
CLKOUT
VDD
GND
RESET
SDI
SDO
EESDI
EESDO
Si2494/39
5 x 7 mm
QFN
31
38
1
2
3
4
5
6
7
8
9
10
11
19
18
17
16
15
14
13
12
30
29
28
27
26
25
24
23
22
21
20
GPIO1
GPIO11, A0
VREG
AO
UT
37 36 35 34 33 32
QE
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DCT
RX
IB
C1B
C2B
VREG
RNG1
RNG2
VREG2
SC
QE2
QB
DCT3
IGND
DCT2
1
Si3018
Si2494/39
V. 9 2 AND V. 34 ISO MODEM WITH G LOBAL DAA
Features
Applications
Description
The Si2494/39 ISOmodem is a full-featured ITU V.92/V.34-compliant modem that
provides connect rates of up to 56 kbps, full-duplex, over the public switched
telephone network (PSTN). Offered as a chipset with the Si2494/39 system-side
device and the Si3018 line-side device, the ISOModem utilizes Silicon
Laboratories’ patented direct access arrangment (DAA) technology to provide a
programmable telephone line interface with an unparalleled level of integration.
This compact solution eliminates the need for a separate DSP, modem controller,
codec, transformer, relay, opto-isolators, clocking crystal, and 2-4 wire hybrid. The
addition of the Si3000 voice codec supports a voice handset and/or full-duplex
speakerphone. Voice pass-through with optional compression supports tapeless
answering machine, music-on-hold, voice menus, etc. The Si2494/39 is ideal for
embedded modem applications due to its flexibility, small footprint, and minimal
external component count.
System Block Diagram
Data modem formats
ITU-T, Bell
300 bps up to 56 kbps
V.21,V.22, V.29 Fast Connect
V.44, V.42, V.42bis, MNP2-5
Automatic rate negotiation
V.92 PCM upstream
V.92 Quick connect
V.92 Modem on hold
Type I and II caller ID decode
No external ROM or RAM required
UART, SPI, or parallel interface
Flexible clock options
Low-cost 32.768 kHz oscillator
4.915 MHz oscillator
27 MHz clock input
Integrated DAA
Over 6000 V capacitive isolation
Parallel phone detect
Globally-compliant line interface
Overcurrent detection
AT command set support
SMS / MMS support
Firmware upgradeable
EEPROM interface
Commercial or industrial
temperature range
DTMF detection/generation
Si3000 Voice Codec Interface
Hardware support for mic,
speaker, and/or handset
Programmable voice filters,
limiters, and sidetone
Supports TBR-38, TIA/EIA-
4790 and other voice
standards
Voice pass through with
compression
Supports telephone
answering machine, music
on hold, voice menus, etc
Full-duplex speakerphone
support
Line echo cancellation
Acoustic echo cancellation
Point-of-sale terminals
Security
Medical
Remote monitoring
Host
CPU
Host Interface
Telco
Si3018
Line
Side
Global
DAA
BOM
Tip
Ring
UART
SPI
Parallel
Capacitive
Isolation Barrier
Si2494
System
Side
相關(guān)PDF資料
PDF描述
SI3000-C-GS IC VOICE CODEC 3.3V/5V 16SOIC
SI3011-F-FS IC VOICE DAA GCI/PCM/SPI 16SOIC
SI3012-KS IC LINE-SIDE DAA 16SOIC
SI3019-F-FS IC LINE-SIDE DAA 16SOIC
SI3019-F-GM IC VOICE GLOBAL DAA PROGR 20QFN
相關(guān)代理商/技術(shù)參數(shù)
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