- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16381 > SI2401FS10-EVB (Silicon Laboratories Inc)BOARD EVAL SI2401 UART INTERFACE PDF資料下載
參數(shù)資料
| 型號： | SI2401FS10-EVB |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 27/76頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL SI2401 UART INTERFACE |
| 標準包裝： | 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： | SI2401 |
| 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 |
| 相關產(chǎn)品： | 336-1095-ND - IC ISOMODEM SYSTEM-SIDE 16SOIC |
| 其它名稱： | 336-1167 |
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頁當前第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頁第71頁第72頁第73頁第74頁第75頁第76頁
Si2401
Rev. 1.0
33
Table 19 defines the relationship between SE5, SE6, and SE8.
6.2. Call Progress Filters
The programmable call progress filter coefficients are located in DSP address locations 0x0010 through 0x0023.
There are two independent 4th order filters, A and B, each consisting of two biquads, for a total of 20 coefficients.
Coefficients are 14 bits (–8192 to 8191) and are interpreted as, for example, b0 = value/4096, thus giving a floating
point value of approximately –2.0 to 2.0. Output of each biquad is calculated as follows:
The output of the filters is input to an energy detector and then compared to a fixed threshold with hysteresis (DSP
register CPDL). Defaults shown are a bandpass filter from 290–630 Hz (–3 dB). These registers are located in the
DSP and, thus, must be written in the same manner described in “DSP Registers”.
The filters may be configured in either parallel or cascade through SE6[6] (CPCD) with SE8 = 0x02, and the output
of filter B may be squared by selecting SE6[7] (CPSQ) = 1. Figure 5 shows a block diagram of the call progress
filter structure.
Table 19. SE5, SE6, and SE8 Relationship
SE8
SE6
SE5
R/W
Name
Description
Name
Description
0x00
W
DADH
DSP register address bits [15:8]
DADL
DSP register address bits [7:0]
0x01
W
DDH
DSP register data bits [15:8]
DDL
DSP register data bits [7:0]
0x02
R
DSP1
7 = DSP data available
6 = Tone detected
5=Reserved
4:0 = Tone type
0x02
W
DSP3
7 = Enable squaring function
6 = Call progress cascade disable
5=Reserved
4 = User tone 3 and 4 reporting
3 = User tone 1 and 2 reporting
2 = V.23 tone reporting
1 = Answer tone reporting
0 = DTMF tone reporting
DSP2
7 = Reserved
6:3 = DTMF tone to transmit
2:0 = Tone type
Table 20. Call Progress Filters
DSP Register
Address
Coefficient
Default (dec)
0x0010
A1_k0
256
0x0011
A1_b1
–8184
0x0012
A1_b2
4096
0x0013
A1_a1
7737
0x0014
A1_a2
–3801
0x0015
A2_k0
1236
wn
[]
k0
x n
[]
×
a1
w n
1
–
[]
×
a2
w n
2
–
[]
×
++
=
yn
[]
wn
[] b1 w n 1
–
[]
×
b2
w n
2
–
[]
×
++
=
相關PDF資料 |
PDF描述 |
|---|---|
| UPA0J272MPD1TD | CAP ALUM 2700UF 6.3V 20% RADIAL |
| UPA0J222MPD1TD | CAP ALUM 2200UF 6.3V 20% RADIAL |
| GBC19DRAS | CONN EDGECARD 38POS R/A .100 SLD |
| CM322522-2R2JL | INDUCTOR CHIP 2.2UH 3225 SMD |
| RR70G821MDN1 | CAP ALUM 820UF 4V 20% RADIAL |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SI2401-FSR | 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 安裝風格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| SI2401URT-EVB | 功能描述:網(wǎng)絡開發(fā)工具 U 634-SI2401FS10-EVB RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類型:Ethernet to Wi-Fi Bridges 工具用于評估: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 |
| SI2403 | 制造商:SILABS 制造商全稱:SILABS 功能描述:V.22BIS ISOMODEM CHIPSET WITH ERROR CORRECTION |
| SI2403-FT | 制造商:Silicon Laboratories Inc 功能描述:MODEM CHIP CHIPSET ISOMODEM 2.4KBPS 24TSSOP - Rail/Tube |
| SI2404 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:V.90, V.34, V.32BIS, V.22BIS ISOMODEM?? WITH GLOBAL DAA |
發(fā)布緊急采購，3分鐘左右您將得到回復。