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参数资料
| 型号： | W671561P |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | 模拟传输电路 |
| 英文描述： | TELECOM-SLIC, PQCC28 |
| 封装： | PLASTIC, LCC-28 |
| 文件页数： | 5/42页 |
| 文件大小： | 1230K |
| 代理商： | W671561P |
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W671500 SERIES
RS
133.3 ZO
(
)
=
(EQ. 13)
The required impedance is a function of the terminating impedance as well as the protection resistors
as shown below.
ZO
ZL 2RP
=
(EQ. 14)
7.1.7.2. 4-wire to 2-wire Gain
The 4-wire to 2-wire gain (G42) is defined as the receive gain. It is a function of the terminating
impedance, synthesized impedance and protection resistors and is calculated as follows.
G42
2
ZL
ZO + 2RP + ZL
------------------------------------------
=
(EQ. 15)
When the device source impedance and protection resistors equals the terminating impedance, the
receive gain equals unity.
7.1.7.3. 2-wire to 2-wire Gain
The 2-wire to 4-wire gain (G24) is the gain from Tip and Ring to the VTX output and is calculated as
follows.
G24
ZO
ZO + 2RP + ZL
------------------------------------------
=
(EQ. 16)
When the protection resistors are set to zero, the transmit gain is -6dB.
7.1.7.4. Transhybrid Gain
The transhybrid gain is defined as the 4-wire to 4-wire gain (G44).
G44
ZO
ZO 2RP ZL
+
---------------------------------------
=
(EQ. 16)
When the protection resistors are set to zero, the transhybrid gain is -6dB.
7.1.7.5. Complex Impedance Synthesis
Substituting the impedance programming resistor, RS, with a complex programming network provides
complex impedance synthesis.
Publication Release Date: April 2004
- 13 -
Revision 1.0
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