參數(shù)資料
型號: LE79555-4VC
英文描述: Telecommunication IC
中文描述: 通信集成電路
文件頁數(shù): 15/16頁
文件大?。?/td> 411K
代理商: LE79555-4VC
SLIC Products
15
TEST CIRCUITS (continued)
D. Two-Wire Return Loss Test Circuit
R
R
Return loss =
20 log (2 V
M
/ V
S
)
Z
D
: The desired impedance;
e.g., the characteristic impedance of the line
V
M
Z
IN
V
S
A(TIP)
B(RING)
AGND
VTX
R
SN
SLIC
R
T2
R
RX
C
T1
R
T1
Z
D
E. RFI Test Circuit
50
L
1
200
200
C
1
C
2
B
HF
GEN
VTX
A
L
2
CAX
33 nF
CBX
33 nF
RF
1
RF
2
50
50
1.5 Vrms
80% Amplitude
Modulated
100 kHz to 30 MHz
SLIC
under test
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