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參數(shù)資料
| 型號： | LUCL9218AAR-DT |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:3; Connector Shell Size:16; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight |
| 中文描述： | 低成本線接口 |
| 文件頁數(shù)： | 24/30頁 |
| 文件大?。?/td> | 378K |
| 代理商： | LUCL9218AAR-DT |
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24
Agere Systems Inc.
Data Sheet
November 2001
L9218A/G Low-Cost Line Interface
Applications
(continued)
ac Design
(continued)
Example 1: Real Termination (First-Generation Codec)
(continued)
The following design equations refer to the circuit in Figure 16. Use these to synthesize real termination imped-
ance.
Termination Impedance:
Z
T
=
Receive Gain:
g
rcv
=
g
rcv
=
Transmit Gain:
g
tx
=
g
tx
=
x
Hybrid Balance:
h
bal
= 20log
To optimize the hybrid balance, the sum of the currents at the VFX input of the codec op amp should be set to 0.
The following expressions assume the test network is the same as the termination impedance:
R
HB
=
h
bal
= 20log
I
T R
–
--------------
Z
T
2R
P
R
GP
1
--------
R
RCV
-----------
+
+
----------------------------------
+
=
V
fr
-------------
R
GP
1
R
T3
---------------
---------------
+
+
1
Z
T/R
------------
+
-------------------------------------------------------------------------------------
V
T R
--------------
X
R
T6
----------
Z
T
----------
V
T R
--------------
×
g
tx
g
rcv
------------------------
R
HB
-----------
g
tx
–
g
rcv
×
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相關代理商/技術參數(shù) |
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|---|---|
| LUCL9218GAR-D | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface |
| LUCL9218GAR-DT | 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Line Interface |
| LUCL9219AAR-D | 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 |
| LUCL9219AAR-DT | 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 |
| LUCL9219GAR-D | 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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