參數(shù)資料
型號(hào)： LUCL9214ARG-D
英文描述： Low-Cost Ringing SLIC
中文描述： 低成本振鈴用戶接口
文件頁數(shù)： 31/46頁
文件大?。?/td> 790K
代理商： LUCL9214ARG-D
Preliminary Data Sheet
October 2001
Low-Cost Ringing SLIC
L9214A/G
Agere Systems Inc.
31
ac Applications
(continued)
Design Examples
(continued)
Example 1, Real Termination
The following design equations refer to the circuit in
Figure 13. Use these to synthesize real termination
impedance.
Termination Impedance:
z
T
=
Receive Gain:
I
T/R
–
----------------------------------
+
------------
z
T
36
2
+
R
P
R
GP
1
--------
R
RCV
-----------
+
+
=
g
rcv
V
FR
-----------
=
g
rcv
1
R
T1
-----------
R
GP
-----------
+
+
1
Z
T/R
--------
+
------------------------------------------------------------------
=
Transmit Gain:
Hybrid Balance:
h
bal
= 20log
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 expression for ZHB becomes the following:
g
tx
V
T/R
----------
=
g
tx
X
R
T2
--------
Z
T/R
--------
×
=
R
HB
-----------
g
tx
–
g
rcv
×
V
FR
--------------
R
HB
k
(
)
×
g
tx
g
rcv
-------------------
=
12-3569 (F)
Figure 13. ac Equivalent Circuit
R
P
Z
T
+
–
R
P
V
T/R
I
T/R
V
S
Z
T/R
+
–
RING
A
V
=
–
1
A
V
= 1
VITR
CURRENT
SENSE
TIP
+
–
R
T1
R
RCV
R
HB1
R
T2
RCVN
RCVP
R
X
VGSX
VF
X
IN
V
FR
1/4 T7504 CODEC
R
GP
+2.4 V
–
0.300 V/mA
A
V
= 4
L9214
VF
X
IP
18
18
+
–
+
–
相關(guān)PDF資料
PDF描述
LUCL9214AAU-D Circular Connector; MIL SPEC:MIL-C-5015; Body Material:Metal; Series:GT; No. of Contacts:6; Connector Shell Size:36; Connecting Termination:Solder; Circular Shell Style:Square Flange Receptacle; Body Style:Straight
LUCL9215GAU-DT Short-Loop Sine Wave Ringing SLIC
LUCL9215GRG-D Short-Loop Sine Wave Ringing SLIC
LUCL9215GAU-D Short-Loop Sine Wave Ringing SLIC
LUCL9215ARG-D Short-Loop Sine Wave Ringing SLIC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LUCL9214ARG-DT 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC
LUCL9214GAJ-D 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC
LUCL9214GAJ-DT 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC
LUCL9214GAU-D 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC
LUCL9214GAU-DT 制造商:AGERE 制造商全稱:AGERE 功能描述:Low-Cost Ringing SLIC
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