MH88422
Preliminary Information
-V
+5v
10H 500Ω
DUT
100uF
I=20mA
26
24
22
1
3
VDD
TIP
+
RLS
AGND
300Ω
300Ω
5
7
IC
LC/
RVLC/
IC
V1
20
18
16
Vs
TF
470nF
9
TXIN
RING
100uF
+
11
VX
1uF
13
10H 500Ω
14
IC
VR
Long. to Met. Balance = 20 * Log (V1 / Vs)
Figure 8 - Test Circuit 5
-V
+5v
10H 500Ω
DUT
100uF
I=20mA
26
1
3
VDD
TIP
+
24
RLS
AGND
300Ω
22
IC
5
7
LC/
RVLC/
IC
Vs
20
TF
510Ω
300Ω
100uF
V1
470nF
18
9
TXIN
16
11
RING
VX
+
1uF
13
10H 500Ω
14
IC
VR
Met. to Long. Balance = 20 * Log (V1 / Vs)
Figure 9 - Test Circuit 6
2-24