LTC1546 Linear Technology, LTC1546 Datasheet - Page 7

• Manufacturer Part Number: LTC1546
• Description: Software-Selectable Multiprotocol Transceiver with Termination
• Manufacturer: Linear Technology

TEST CIRCUITS
Figure 5. V.35 Driver Open-Circuit Test
Figure 8. V.35 Driver AC Test Circuit
125
125
V
V
V
CM
Figure 1. V.11 Driver DC Test Circuit
OB
OA
50
50
Figure 3. Input Impedance Test Circuit
= 7V
50
50
+
–
D
V
Figure 11. V.28 Driver Test Circuit
OD
B
A
I
I
B
A
1546 F08
V
50
50
R
R
OD
L
L
B
A
1546 F05
125
D
R
R
R
IN
V
L
L
1546 F01
OC
=
2(V
I
V
B
B
A
OC
– I
– V
A
A
)
R
C
1546 F11
1546 F03
L
Figure 6. V.35 Driver Test Circuit
Figure 9. V.35 Receiver DC Test Circuit
R
125
L
V
V
V
V
OB
OA
50
50
CM
TH
+
–
+
–
1546 F06
50
50
Figure 12. V.28 Receiver Test Circuit
125
1546 F09
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
CM
125
Figure 10. Receiver Common Mode
Impedance Test Circuit
R
100
1546 F12
L
B
A
= 2V
C
L
50
50
R
1546 F02
+
–
1546 F04
C
L
C
100pF
C
100pF
L
L
1546 F10
LTC1546
51.5
51.5
125
1546 F07
+
–
V
CM
= 2V
7