- 您现在的位置：买卖IC网 > PDF目录16381 > SI2401FS10-EVB (Silicon Laboratories Inc)BOARD EVAL SI2401 UART INTERFACE PDF资料下载
参数资料
| 型号： | SI2401FS10-EVB |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 27/76页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL SI2401 UART INTERFACE |
| 标准包装： | 1 |
| 系列： | ISOmodem® |
| 主要目的： | 电信，调制解调器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | SI2401 |
| 主要属性： | 双路 RJ-11 连接至电话线路，音频连接器 |
| 次要属性： | RS-232，TTL 串行和 USB 接口 |
| 已供物品： | 板，调制解调器，电源 |
| 相关产品： | 336-1095-ND - IC ISOMODEM SYSTEM-SIDE 16SOIC |
| 其它名称： | 336-1167 |
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页当前第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页第76页
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
–
[]
×
++
=
相关PDF资料 |
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 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SI2401-FSR | 功能描述:电信线路管理 IC 2400b/s System Side 3rd Gen DAA Tech 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 |
| SI2401URT-EVB | 功能描述:网络开发工具 U 634-SI2401FS10-EVB RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
| SI2403 | 制造商:SILABS 制造商全称: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:未知厂家 制造商全称:未知厂家 功能描述:V.90, V.34, V.32BIS, V.22BIS ISOMODEM?? WITH GLOBAL DAA |
发布紧急采购，3分钟左右您将得到回复。