參數(shù)資料
型號(hào)： 73M1822-KEYCHN
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 58/82頁(yè)
文件大小： 0K
描述： BOARD KEYCHAIN 73M1822 42-QFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)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
DS_1x22_017
73M1822/73M1922 Data Sheet
Rev. 1.6
61
11 Configurable Direct Access Arrangement (DAA)
The 73M1x22 line-side device integrates most of the circuitry to implement a PSTN line interface or DAA
that is capable of being globally compliant with a single bill of materials. The 73M1x22 supports the
following DAA functions:
Pulse dialing
On and Off Hook switch control
Loop current (DC-IV) regulation
Line impedance matching
Ring detection
Tip and Ring voltage polarity reversal detection
Billing tone rejection
Trans-hybrid cancellation
The device is able to support Barrier-powered mode in which the PSTN loop current may be as low as 8
mA.
11.1 Pulse Dialing
The 73M1x22 supports Pulse Dialing. See Section 11.6 for the description applicable control and status
bits and Section Error! Reference source not found. for a description of a recommended procedure.
11.2 DC Termination
DC Termination or Loop Current (DC-IV) regulation is managed by the 73M1x22 Line-Side Device by
configuring the appropriate registers. No additional components are necessary.
The 73M1x22 provides a DC transconductance circuit that regulates the tip to ring voltage depending on the
DC current supplied by the line. There are four settings that can be used to set the voltage to current ratio.
Figure 31 shows the DC-IV characteristics of the 73M1x22 with special regions of interest.
V
I
41 Ω *
Programmable
Turn-on Voltage
Current Limit Turn-on=42 mA
2.2 kΩ
Current Limit Turned on
* ~50
with 8 fuse resistance
Seize Voltage
Figure 31: DC-IV Characteristics
相關(guān)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(guān)代理商/技術(shù)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(chǎn)品:PHY 接口類(lèi)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
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(chǎn)品:PHY 接口類(lèi)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
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(chǎn)品:PHY 接口類(lèi)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
73M1866B-KEYCHN 功能描述:網(wǎng)絡(luò)開(kāi)發(fā)工具 73M1866B Keychain Brd RoHS:否 制造商:Rabbit Semiconductor 產(chǎn)品:Development Kits 類(lèi)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(lèi)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(chǎn)品:PHY 接口類(lèi)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
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*