MH88634B
Advance Information
XLA
XLB
XLC
XLD
+5V
VCC
-5V
VEE
-V
10H 300Ω
RING
I = 25mA
100uF
+
600Ω
368Ω
V1
368Ω
TX
RX
TIP
AGND
Return Loss = 20 * Log (V1\Vs)
100uF
+
10H 300Ω
Figure 6 - Return Loss Test Circuit
Vs = 0.5V
~
+5V
-5V
-V
VCC
VEE
XLA
10H 300Ω
100uF
XLB
RING
I = 25mA
+
XLC
368Ω
XLD
Vtx
TX
VEX
V
RX
TIP
AGND
V1
100uF
368Ω
+
10H 300Ω
Long to Met Bal. = 20 * Log (V1\Vs)
CMRR = 20 * Log (Vtx\Vs) - ( 2-4W Gain)
Vs = 0.5V
~
Figure 7 - Longitudinal to Metallic Balance and CMRR Test Circuit
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