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參數(shù)資料
| 型號(hào)： | W671561P |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 模擬傳輸電路 |
| 英文描述： | TELECOM-SLIC, PQCC28 |
| 封裝： | PLASTIC, LCC-28 |
| 文件頁數(shù)： | 5/42頁 |
| 文件大?。?/td> | 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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