參數(shù)資料
型號(hào)： L9218A
英文描述： CAP CER 330PF 3.15KVDC R3 RAD
中文描述： 低成本線接口
文件頁數(shù)： 1/30頁
文件大?。?/td> 378K
代理商： L9218A
Data Sheet
November 2001
L9218A/G Low-Cost Line Interface
Features
I
Basic forward battery only SLIC functionality at a
low cost
I
Pin compatible with Agere Systems Inc. L9219 and
L9217 SLIC
I
Low active power (typical 138 mW during on-hook
transmission)
I
Low-power scan mode for low-power, on-hook
power dissipation (59 mW typical)
I
Minimal external components
I
Distortion-free, on-hook transmission
I
Convenient operating states:
— Forward battery low current limit
— Forward battery high current limit
— Low-power scan
— Disconnect (high impedance)
I
Adjustable supervision functions:
— Off-hook detector with hysteresis
— Ring trip detector
I
Logic controlled high and low current limit
I
Two gain options to optimize the codec interface
I
Thermal protection with thermal shutdown indica-
tion
Description
This general-purpose electronic subscriber loop
interface circuit (SLIC) is optimized for low cost, while
still providing a satisfactory set of features.
The L9218 is pin-for-pin compatible with the Agere
L9219 and L9217 SLICs.
The L9218 requires a 5 V power supply and single
battery to operate. This is a forward battery only
device. Additionally, a low-power scan mode,
wherein all circuitry except the off-hook supervision is
shut down to conserve power, is available.
Via the logic inputs, a low or high current limit may be
selected. The low value is set via a single external
resistor, and the high value is 1.4 times the low value.
Device overhead is fixed and is adequate for
3.14 dBm into 900
of on-hook transmission.
Both the loop supervision and ring trip supervision
functions are offered with user-controlled thresholds
via external resistors.
The L9218 is offered with a receive gain that is opti-
mized for interface to a first-generation type codec
(L9218A). It is also offered with a gain option that is
optimized for interface to a third- or fourth-generation
type codec (L9218G). In both cases, minimizing
external components required at this interface. In the
receive direction, the device may be dc-coupled to a
third-generation codec. No dc blocking capacitors
are needed.
Data control is via a parallel data control scheme.
The device is available in a 28-pin PLCC package. It
is built by using a 90 V complementary bipolar
(CBIC) process.
相關(guān)PDF資料
PDF描述
L9219A CAP CER 390PF 3.15KVDC R3 RAD
L9310 Line Interface and Line Access Circuit Full-Feature SLIC,Ringing Relay,and Test Access Device
L9311 Line Interface and Line Access Circuit Full-Feature SLIC with High Longitudinal Balance, Ringing Relay,and GR-909 Test Access
L9312 Line Interface and Line Access Circuit Forward Battery SLIC and Ringing Relay for TR-57 Applications
L9313 Line Interface and Line Access Circuit Full-Feature SLIC and Ringing for TR-57 Applications
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L9219A 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface with Reverse Battery and Dual Current Limit
L9222 功能描述:功率驅(qū)動(dòng)器IC Quad Inv Tran Switch RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
L9222_04 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD INVERTING TRANSISTOR SWITCH
L9222D 功能描述:功率驅(qū)動(dòng)器IC Quad Inv Tran Switch RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
L9222-D 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD INVERTING TRANSISTOR SWITCH
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。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。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

我的聯(lián)系方式

*
*
*