![](/html/Mitel/935/page7.png)
Preliminary Information
MH88524
JUNCTOR
MH88524
RESISTANCE JUN1
TX1
MH88631
RX1
TIP
TX1
AGND
TX1
RING
RETURN LOSS
FREQ = 1000Hz
10
20
30
40
TYPICAL
RETURN 50
LOSS
(dB) 60
JUNCTOR
RESISTANCE
(Ω)
550
600
650
700 750 800 850
900
950
Figure 6 - Return Loss vs Junctor Resistance with MH88631 and MH88524
RECEIVE 1 INPUT
TRANSMIT 1 OUTPUT
RECEIVE 1 INPUT
TRANSMIT 2 OUTPUT
1
RX1
3 TX1
2
JUN1
10
RX2
9
JUN2
8 TX2
VDD AGND VEE
4
5
6
JUNCTOR1
INPUT/OUPUT
JUNCTOR 2
INPUT/OUTPUT
+5V
-5V
Figure 7 - MH88524 Application Circuit
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