- 您现在的位置：买卖IC网 > PDF目录10908 > SI3015-F-FS (Silicon Laboratories Inc)IC ISOMODEM LINE-SIDE DAA 16SOIC PDF资料下载
参数资料
| 型号： | SI3015-F-FS |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 76/94页 |
| 文件大小： | 0K |
| 描述： | IC ISOMODEM LINE-SIDE DAA 16SOIC |
| 标准包装： | 48 |
| 系列： | ISOmodem® |
| 数据格式： | V.90 |
| 波特率： | 2.4k |
| 电源电压： | 3.3V，5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC N |
| 包装： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页当前第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页
Si2400
78
Rev. 1.3
APPENDIX A—DAA OPERATION
Introduction
This section describes the detailed functionality of the
integrated DAA included in the Si2400 chipset. This
specific functionality is generally transparent to the user
when using the on-chip controller in the Si2400 modem.
When bypassing the on-chip controller, the low-level
DAA functions of the Si3015 described in this section
can be controlled through S registers.
DAA Isolation Barrier
The Si2400 chipset consists of the Si3015 line-side
device and the Si2400 modem device. The Si2400
achieves an isolation barrier through a low-cost, high-
voltage
capacitor
in
conjunction
with
Silicon
Laboratories’ proprietary signal processing techniques.
These techniques eliminate any signal degradation due
to capacitor mismatches, common mode interference,
or noise coupling. As shown in Figure 3 on page 10, the
C1, C4, C24, and C25 capacitors isolate the Si2400
(DSP-side) from the Si3015 (line-side). All transmit,
receive, and control data are communicated through
this barrier.
Emissions/Immunity
The Si2400 chipset and recommended DAA schematic
is fully compliant with and passes all international
electromagnetic emissions and conducted immunity
tests (includes FCC part 15,68; EN50082-1). Careful
attention to the Si2400 bill of materials (page 11),
schematic (Figure 3 on page 10), and layout guidelines
(included in the Si2400URT-EVB data sheet) will ensure
compliance with these international standards. In
designs with difficult layout constraints, the addition of
the C22 and C30 capacitors to the C24 and C25
recommended
capacitors
may
improve
modem
performance on emissions and conducted immunity.
Also, under some layout conditions, C22 and C30 may
improve the immunity to telephone line transients. This
is most important for applications that use the voice
codec feature of the Si2400. Because line transients are
infrequent and high voltage in nature, they tend to be
more problematic in voice applications than in data
applications. An occasional pop in a voice application is
quite noticeable, whereas occasional bit errors are
easily corrected in a modem connection with an error-
correction protocol.
EN55022 and CISPR-22 Compliance
Compliance to the EN55022:1998 standard will be
necessary to conform to the European Union's EMC
Directive. Adherence to this standard will be necessary
to display the CE mark on designs intended for sale in
the EU. The deadline for EN55022 and CISPR-22
compliance is August 1, 2003. However, some non-
European countries currently require compliance to the
CISPR-22
specification.
The
typical
schematic
contained in this data sheet is designed to be compliant
to the above mentioned standards. It should be noted
that L1, L2, R31, R32, C38, and C39 are only necessary
for those products which are intended for sale in the
European Union or require CISPR-22 compliance. If this
is not the target market then L1 and L2 can be replaced
with 0
Ω resistors and R31, R32, C38, and C39 need
not be populated.
While this population option achieves EN55022 and
CISPR-22
compliance,
there
are
several
system
dependent
and
country
dependent
issues
worth
considering. The first relates to the direct current
resistance (DCR) of the inductors. If the selected
inductors have a DCR of less than 3
Ω each, then
countries which require 300
Ω or less of dc resistance at
TIP and RING with 20 mA of loop current can be
satisfied with the Japan dc termination mode (SF5[3:2]
[DCT] = 01b). If the selected inductors have a DCR of
greater than 3
Ω but less than 8 Ω each, then low
voltage dc termination mode (DCT = 00) must be used
to satisfy the above requirement. In either case, Silicon
Laboratories
strongly
recommends
users
of
the
ISOmodem adhere to the section “DC Termination
Considerations” for dc termination requirements.
The second consideration relates to the power supply of
the target system. The recommended values for L1, L2,
R31, R32, C38, and C39 assume that the target system
provides a direct current connection between the target
system's reference ground (Si2400 GND) and an
external ground (often the third prong of a power plug).
If there is no direct connection between the reference
ground and external ground, then smaller inductor
values are possible. It should be understood that this
consideration is system dependent, and the impedance
between the system ground and the external ground in
the range of 500 kHz and 10 MHz should be well
known. Please contact a Silicon Laboratories technical
representative for further assistance in analyzing or
testing systems for this consideration.
相关PDF资料 |
PDF描述 |
|---|---|
| SI3050-E1-FM | IC VOICE DAA SYSTEM SIDE 24QFN |
| JBXEA2G07FSSDS | CONN RCPT 7POS DOUBLE NUT SOLDER |
| VE-J6V-IY-B1 | CONVERTER MOD DC/DC 5.8V 50W |
| VE-J6T-IY-B1 | CONVERTER MOD DC/DC 6.5V 50W |
| VE-2NX-IX-F1 | CONVERTER MOD DC/DC 5.2V 75W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SI3015-F-FSR | 制造商:Silicon Laboratories Inc 功能描述:Modem Chip Chipset 2.4Kbps 16-Pin SOIC T/R 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 2.4KBPS 16SOIC - Tape and Reel 制造商:Silicon Laboratories 功能描述:Modem Chip Chipset 2.4Kbps 16-Pin SOIC T/R |
| SI3015-FS | 功能描述:IC ISOMODEM LINE-SIDE DAA 16SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 调制解调器 - IC 和模块 系列:ISOmodem® 标准包装:25 系列:- 数据格式:V.21，V.22，V.23，V.29，V.32，V.34，V.90，V.92，Bell 103，Bell 212A 波特率:33.6k 电源电压:3.3V 安装类型:- 封装/外壳:- 供应商设备封装:- 包装:托盘 配用:591-1013-ND - KIT DEV SOCKETMODEM PARALLEL591-1009-ND - KIT DEV SRL SOCKETMODEM UNIVERSL 其它名称:MT5656SMI-P-V-34.R2-SPMT5656SMI-P-V-34.R2-SP-NDQ4711574 |
| SI3015-FSR | 制造商:Silicon Laboratories Inc 功能描述:SI2403 ISOMODEM LINE-SIDE LEAD-FREE SOIC 0 TO 70 DEG. C - Tape and Reel |
| SI3015-KS | 功能描述:电信线路管理 IC SI2400 Line Side RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
| SI3015-KSR | 功能描述:电信线路管理 IC SI2400 Line Side RoHS:否 制造商:STMicroelectronics 产品:PHY 接口类型:UART 电源电压-最大:18 V 电源电压-最小:8 V 电源电流:30 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:VFQFPN-48 封装:Tray |
发布紧急采购，3分钟左右您将得到回复。