- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16278 > 73M1822-KEYCHN (Maxim Integrated Products)BOARD KEYCHAIN 73M1822 42-QFN PDF資料下載
參數(shù)資料
| 型號： | 73M1822-KEYCHN |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 60/82頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD KEYCHAIN 73M1822 42-QFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 主要目的： | * |
| 嵌入式： | * |
| 已用 IC / 零件： | * |
| 主要屬性： | * |
| 次要屬性： | * |
| 已供物品： | 板，CD |
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頁當前第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頁第77頁第78頁第79頁第80頁第81頁第82頁
DS_1x22_017
73M1822/73M1922 Data Sheet
Rev. 1.6
63
An example of the use of the Seize state is that of Australia in which requires this stat for the first 300 ms
immediately after going off hook.
0
2
4
6
8
10
12
14
0
10
20
30
40
50
60
70
80
90
100
T
ip/R
ing
V
olt
a
ge
DC current, mA
DCVI Performance
DCIV=xx
Australian Not Recommended Region
Australian
Prohibited Region
Figure 33: Voltage versus Current in the Seize Mode is the Same for All DCIV Settings
To facilitate the quick capture of the loop, the bandwidth of the DC loop is high upon power up. On the
completion of DC loop capture, it should be lowered to avoid the interaction of DC and AC loops. See the
description of the ENNOM bit in Section 11.6.
11.2.1 Current Limit Detection
If the DAA Current Limiting feature is enabled and the device detects a limited condition, then a status bit is
set to give an indication of this event.
11.3 AC Termination
International DAA functionality is supported without any external termination components through the
following functions:
Enable/Disable AC termination ATEN bit at Register 0x16[4].
Select AC termination impedance using the ACZ bits at Register 0x17[4:3]
ACZ Active Termination Loop Setting
00 = 600
(USA, Japan)
01 = 270
+ 750 || 150nF (ETSI ES 203 021-2)
10 = 200
+ 680 || 100nF (China)
11 = 220
+ 820 || 115nF (Australia)
The AC impedance presented to the line can be altered as described in the AC Termination Register
(Register 0x17). This is a part of a feedback loop that monitors the line and feeds an appropriate AC
current back to line, such that the desired impedance looking into the RXP pin (of the 73M1912 LIC) is
realized. Figure 34 shows magnitude response of the impedance matching filter for the case of ETSI ES
203 021-2. It is approximately equal to the inverse of the frequency characteristics of the impedance being
realized.
相關PDF資料 |
PDF描述 |
|---|---|
| 78Q2133-DB | EVAL BOARD 78Q2133 |
| MAX14821EVKIT# | EVAL KIT MAX14821 |
| UVZ1C472MHD | CAP ALUM 4700UF 16V 20% RADIAL |
| 78Q2123-DB | BOARD DEMO 78Q2123 78Q2133 |
| 78Q2120C09-DB | BOARD DEMO 78Q2120C |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 73M1866B-IFX | 功能描述:電信線路管理 IC MicroDAA w/PCM Highway RoHS:否 制造商:STMicroelectronics 產品: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 |
| 73M1866B-IM/F | 功能描述:電信線路管理 IC MicroDAA w/PCM Highway RoHS:否 制造商:STMicroelectronics 產品: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 |
| 73M1866B-IMR/F | 功能描述:電信線路管理 IC MicroDAA w/PCM Highway RoHS:否 制造商:STMicroelectronics 產品: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 |
| 73M1866B-KEYCHN | 功能描述:網(wǎng)絡開發(fā)工具 73M1866B Keychain Brd RoHS:否 制造商:Rabbit Semiconductor 產品: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 |
| 73M1902-IM/F | 功能描述:電信線路管理 IC MicroDAA Chip Set Host Side RoHS:否 制造商:STMicroelectronics 產品: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 |
發(fā)布緊急采購，3分鐘左右您將得到回復。