LTC2847 Linear Technology, LTC2847 Datasheet - Page 8

• Manufacturer Part Number: LTC2847
• Description: Software-Selectable Multiprotocol Transceiver
• Manufacturer: Linear Technology

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LTC2847
TEST CIRCUITS
8
Figure 5. V.35 Driver Open-Circuit Test
4
Figure 8. V.35 Driver AC Test Circuit
125
125
V
CM
Figure 1. V.11 Driver DC Test Circuit
V
V
Figure 3. Input Impedance Test Circuit
OB
OA
50
50
50
50
= 7V
+
–
D
Figure 11. V.28 Driver Test Circuit
V
OD
B
A
I
I
B
A
2847 F08
50
50
V
2847 F05
OD
R
R
B
A
L
L
125
D
R
R
R
IN
L
L
V
2847 F01
=
OC
2(V
I
B
V
B
A
OC
– I
– V
A
A
)
C
2847 F11
R
2847 F03
L
Figure 6. V.35 Driver Test Circuit
Figure 9. V.35 Receiver DC Test Circuit
125
R
L
V
V
OB
OA
50
50
V
V
CM
TH
+
–
+
–
2847 F09
2847 F06
50
50
Figure 12. V.28 Receiver Test Circuit
125
Figure 4. V.11, V.35 Receiver AC Test Circuit
V
A
V
Figure 2. V.11 Driver AC Test Circuit
CM
A
D
Figure 7. V.35 Driver Common Mode
Impedance Test Circuit
B
A
R
V
125
CM
Figure 10. Receiver Common Mode
Impedance Test Circuit
R
100
B
2847 F12
A
L
C
= 2V
L
R
50
50
2847 F02
+
–
2847 F04
C
L
C
100pF
C
100pF
L
L
2847 F10
2847 F07
51.5
51.5
125
+
–
sn2847 2847fs
V
CM
= 2V