- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄2016 > SI2494-A-GM (Silicon Laboratories Inc)IC ISOMODEM 56KBPS 38-QFN PDF資料下載
參數(shù)資料
| 型號： | SI2494-A-GM |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 15/70頁 |
| 文件大小： | 0K |
| 描述： | IC ISOMODEM 56KBPS 38-QFN |
| 標準包裝： | 364 |
| 系列： | * |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁當前第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁
Si2494/39
22
Rev. 1.0
4.12. V.92 PCM Upstream
The Si2494/39 supports the ITU-V.92 PCM upstream data protocol. This protocol allows the ISOmodem to connect
at speed up to 48 kbps upstream. Previously the upstream connection rate was limited to 33.6 kbps. The PCM
upstream mode is enabled by default; to disable, issue the AT command +PIG = 1 (see Table 10 on page 27). To
view both downstream and upstream connect speeds in the connect result message, issue the command “AT \V4”
or “AT+MR”.
4.13. V.92 Quick Connect
The Si2494/39 supports the ITU-V.92 quick connect protocol. Quick connect enables the modem to save and reuse
line condition parameters to reduce startup negotiation time.
The quick connect feature is enabled by default in the Si2494/39. For information on changing the quick connect
settings, see the +PSS and +PQC commands shown in Table 10 on page 27.
4.14. V.92 Modem-on-Hold
The modem-on-hold (MOH) feature allows the modem user to answer an incoming call while connected online
without dropping the internet connection. The modem will remain “on hold” for a period of time determined by the
host and the ISP. There are four AT commands that control the operation of MOH. The commands are as follows:
+PCW, +PMH, +PMHT, +PMHR. By changing these parameters, the user can enable/disable call waiting and
MOH, set the MOH request timeout, and set the MOH initiate timeout. For further details and syntax on these
commands see Table 10 on page 27. The MOH feature is most useful when the Si2494/39 is connected to a
central office that allows call waiting.
Table 9. V.253 Event Reporting in Voice Mode
Event Description
Reporting
+VLS
Caller Id Report
Complex
0,4,20,21
Distinctive Ringing
Complex
0,4,20,21
RING
R
0,4,20,21
DTMF Received
1-9,A-D,*,#
1,5,20,21
Facsimile Calling (e.g. 1100 Hz)
c
1,5,20,21
Data Calling (e.g. 1300 Hz)
e
1,5,20,21
Presumed End of Message (QUIET) Time-out
q
1,5,20,21
Loop Current Interruption
l
1,5,20,21
Ringing Tone
r
1,5,20,21
BUSY
b
1,5,20,21
DIALTONE
d
1,5,20,21
Extension Phone On-hook
p
0,1,4,5,20,21
Extension Phone Off-hook
P
0,1,4,5,20,21
Facsimile or Data Answer (e.g. 2100 Hz)
a
1,5,20,21
Data Answer (e.g. 2225 Hz)
f
1,5,20,21
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) |
參數(shù)描述 |
|---|---|
| SI2494-A-GMR | 制造商:Silicon Laboratories Inc 功能描述:56 KBPS, V.92 ISOMODEM +VOICE SYSTEM-SIDE - LEAD-FREE - Tape and Reel 制造商:Silicon Laboratories Inc 功能描述:IC ISOMODEM 56KBPS 38-QFN |
| SI24R1 | 制造商:SIRECTIFIER 制造商全稱:Sirectifier Semiconductors 功能描述:完全兼容 NRF24L01P,超低功耗高性能 2.4GHz GFSK 無線收發(fā)芯片 |
| SI24S | 制造商:IBase Technology (USA) Inc. 功能描述:(DS), ULTRA SLIM BOOK-SIZE EMBEDDED SYSTEM WITH W/ AMD K8 (B - Bulk |
| SI24SD | 制造商:IBase Technology (USA) Inc. 功能描述:(DS), ULTRA SLIM BOOK-SIZE EMBEDDED SYSTEM WITH W/ AMD ATHLO - Bulk |
| SI24XX-LOGTOOL | 功能描述:TOOL MODEM LOG SI24XX RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:* 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
發(fā)布緊急采購，3分鐘左右您將得到回復。