ad7306jr-reel Analog Devices, Inc., ad7306jr-reel Datasheet - Page 5

• Manufacturer Part Number: ad7306jr-reel
• Description: +5 V Powered Rs-232/rs-422 Transceiver
• Manufacturer: Analog Devices, Inc.

REV. B
Figure 2. RS-422 Driver. Propagation Delay Test Circuit
TTL/CMOS
OUTPUTS
TTL/CMOS
Figure 3. RS-422 Driver. Voltage Measurement Test
Circuit
T3
INPUTS
IN
232/422 SEL
T3
0.1 F
0.1 F
IN
Figure 1. AD7306 Application Circuit
R2
R1
T2
T3
T1
OUT
OUT
IN
IN
IN
T3
0.1 F
16
17
23
20
19
21
15
22
T3
2
3
T3
T3
C1+
C1–
C2+
C2–
AD7306
OUT
OUT
18
T3
T3
GENERATOR
+5V INPUT
R1
(A)
(B)
OUT
OUT
SUPPLY
POWER
T2
T1
T3
7
V
10V
R2
RL
CC
(A)
(B)
14
DIFF
V
= 100
OD
V+
V–
1
10
11
24
5
6
9
8
4
R2
T3
T3
R1
R1
T1
T2
0.1 F
0.1 F
C
C
IN
OUT
IN
OUT
OUT
IN
OUT
L1
L2
(B)
/R1
= 100pF
= 100pF
RS-232
INPUT
(B)
(A)
RL
IN
RS-232
OUTPUTS
RS-422
INPUT
DIFF
(A)
RS-422
OUTPUT
RS-232/
RS-422
INPUT
–5–
T3
T3
OUT
OUT
Figure 4. RS-422 Driver. Propagation Delay Rise/Fall
Timing
R1
–VO
(A)
(B)
Figure 6. RS-232/RS-422 Receiver Enable Timing
VO
3V
0V
0V
DIFFERENTIAL
IN
(B) - R1
232/422 SEL
VO
10% POINT
INPUT
1/2 VO
IN
R1
Figure 5. RS-422 Receiver Timing
90% POINT
(A)
OUT
R1
–2.5V
t
OUT
2.5V
t
1.5V
SKEW
R
RS-232
t
EN1
t
PLH
1.5V
V
V
V
OL
OH
OL
0V
RS-422
t
PHL
t
EN2
1.5V
t
PHL
AD7306
t
1.5V
SKEW
t
RS-232
90% POINT
V
F
V
V
OH
OH
OL
10% POINT
0V
t
PLH