參數資料
型號： L9214A
英文描述： CAP CER 220PF 3.15KVDC R3 RAD
中文描述： 低成本振鈴用戶接口
文件頁數： 2/46頁
文件大?。?/td> 790K
代理商： L9214A
Preliminary Data Sheet
October 2001
Low-Cost Ringing SLIC
L9214A/G
2
Agere Systems Inc.
Table of Contents
Contents
Page
Introduction..................................................................1
Features....................................................................1
Applications...............................................................1
Description................................................................1
Features ......................................................................4
Description...................................................................4
Architecture Diagram...................................................7
Pin Information ............................................................8
Operating States........................................................12
State Definitions ........................................................12
Forward Active (Fast Polarity Reversal) .................12
Off-hook................................................................12
On-hook................................................................12
Forward Active (Slow Polarity Reversal).................12
Off-hook................................................................12
On-hook................................................................12
Reverse Active (Fast Polarity Reversal) .................13
Off-hook................................................................13
On-hook................................................................13
Reverse Active (Slow Polarity Reversal) ................13
Off-hook................................................................13
On-hook................................................................13
Scan........................................................................13
Disconnect ..............................................................13
Ring.........................................................................13
Thermal Shutdown..................................................13
Absolute Maximum Ratings.......................................14
Electrical Characteristics...........................................15
Test Configurations ...................................................22
Applications...............................................................24
Power Control .........................................................24
dc Loop Current Limit..............................................25
Overhead Voltage...................................................25
Active Mode .........................................................25
Scan Mode...........................................................25
On-Hook Transmission Mode...............................25
Ring Mode............................................................26
Contents
Page
Loop Range ........................................................... 26
Battery Reversal Rate............................................ 26
Supervision............................................................... 27
Loop Closure.......................................................... 27
Ring Trip ................................................................ 27
Tip or Ring Ground Detector.................................. 27
Power Ring ............................................................ 27
Periodic Pulse Metering (PPM) ................................ 29
ac Applications ......................................................... 29
ac Parameters........................................................ 29
Codec Types.......................................................... 29
First-Generation Codecs..................................... 29
Third-Generation Codecs.................................... 29
ac Interface Network.............................................. 29
Design Examples................................................... 30
First-Generation Codec ac Interface
Network
—
Resistive Termination ...................... 30
Example 1, Real Termination.............................. 31
First-Generation Codec ac Interface
Network
—
Complex Termination....................... 34
Complex Termination Impedance Design
Example............................................................ 34
ac Interface Using First-Generation Codec......... 33
Transmit Gain...................................................... 35
Receive Gain....................................................... 36
Hybrid Balance.................................................... 36
Blocking Capacitors............................................. 37
Third-Generation Codec ac Interface
Network
—
Complex Termination....................... 40
Outline Diagram........................................................ 41
28-Pin SOG............................................................ 42
32-Pin PLCC.......................................................... 43
48-Pin
MLCC.......................................................... 44
48-Pin
MLCC, JEDEC MO-220 VKKD-2................ 45
Ordering Information................................................. 46
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相關代理商/技術參數
參數描述
L9215A 制造商:AGERE 制造商全稱:AGERE 功能描述:Short-Loop Sine Wave Ringing SLIC
L9216A 制造商:AGERE 制造商全稱:AGERE 功能描述:Short-Loop Ringing SLIC with Ground Start
L9217A 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface with Reverse Battery and PPM
L9218A 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface
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
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