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參數(shù)資料
型號(hào)： SI2400URT-EVB
廠商： Silicon Laboratories Inc
文件頁(yè)數(shù)： 77/94頁(yè)
文件大?。?/td> 0K
描述： BOARD EVAL FOR SI2400 ISOMODEM
標(biāo)準(zhǔn)包裝： 1
系列： ISOmodem®
主要目的： 電信，調(diào)制解調(diào)器
嵌入式： 否
已用 IC / 零件： SI2400
主要屬性： 雙路 RJ-11 連接至電話線路，音頻連接器
次要屬性： RS-232，TTL 串行和 USB 接口
已供物品： 板，調(diào)制解調(diào)器，電源
相關(guān)產(chǎn)品： SI2400-BS-ND - IC ISOMODEM SYSTEM-SIDE 16SOIC
SI2400-FS-ND - IC ISOMODEM SYST-SIDE DAA 16SOIC
336-1093-ND - IC ISOMODEM SYSTEM-SIDE 16SOIC
其它名稱： 336-1166
Si2400
Rev. 1.3
79
DC Termination
The Si2400 has four programmable dc termination
modes which are selected with SF5[3:2] (DCT).
FCC mode (DCT = 10b), shown in Figure 14, is the
default dc termination mode and supports a transmit full
scale level of –1 dBm at TIP and RING. This mode
meets FCC requirements in addition to the requirements
of many other countries.
Figure 14. FCC Mode I/V Characteristics
CTR21 mode DCT = 11b, shown in Figure 15, provides
current limiting while maintaining a transmit full scale
level of –1 dBm at TIP and RING. In this mode, the dc
termination will current limit before reaching 60 mA.
Figure 15. CTR21 Mode I/V Characteristics
Japan mode DCT = 01b, shown in Figure 16, is a lower
voltage mode and supports a transmit full scale level of
–2.71 dBm. Higher transmit levels for DTMF dialing are
also supported. See "DTMF Dialing" on page 80. The
low voltage requirement is dictated by countries such as
Japan and Malaysia.
Figure 16. Japan Mode I/V Characteristics
Low Voltage mode (DCT = 00b), shown in Figure 17, is
the lowest line voltage mode supported on the Si2400,
with a transmit full scale level of –5 dBm. Higher
transmit levels for DTMF dialing are also supported.
See “DTMF Dialing”. This low voltage mode is offered
for situations that require very low line voltage
operation. It is important to note that this mode should
only be used when necessary, as the dynamic range will
be significantly reduced and thus the ISOmodem will
not be able to transmit or receive large signals without
clipping them.
Figure 17. Low Voltage Mode I/V
Characteristics
12
11
10
9
8
7
6
.01 .02 .03 .04 .05 .06 .07 .08 .09
.1
.1 1
Loop Current (A )
FCC DCT M ode
V
ol
tag
e
A
c
ro
s
D
A
(
V
)
45
40
35
30
25
20
15
10
5
.015 .02 .025 .03 .035 .04 .045 .05 .055 .06
Loop Current (A )
CTR21 DCT M ode
V
ol
tag
e
A
c
ro
s
D
A
(
V
)
10.5
10
9.5
9
8.5
8
7.5
7
6.5
6
5.5
.01 .02 .0 3 .04 .0 5 .06 .07 .08 .09
.1
.1 1
Loop Current (A )
Japan DCT M ode
Vo
lt
a
g
e
Acr
o
ss
D
A
(
V
)
10.5
10
9.5
9
8.5
8
7.5
7
6.5
6
5.5
.01 .02 .0 3 .04 .0 5 .06 .07 .08 .09
.1
.1 1
Loop Current (A )
Low V oltage M ode
Vo
lt
a
g
e
Acr
o
ss
D
A
(
V
)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SI2401 制造商:SILABS 制造商全稱:SILABS 功能描述:V.22BIS ISOMODEM㈢ WITH LOW-COST DAA
SI2401-C-FS 制造商:Silicon Laboratories Inc 功能描述:
SI2401DC-EVB 功能描述:子卡和OEM板 SI2401 Daughter Card RoHS:否 制造商:BeagleBoard by CircuitCo 產(chǎn)品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit
SI2401-FS 功能描述:電信線路管理 IC 2400b/s System Side 3rd Gen DAA Tech RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray
Si2401FS08-EVB 功能描述:網(wǎng)絡(luò)開(kāi)發(fā)工具 Si2401+Si3008 ISO modem Eval Board RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評(píng)估:RCM6600W 數(shù)據(jù)速率:20 Mbps, 40 Mbps 接口類型:802.11 b/g, Ethernet 工作電源電壓:3.3 V
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