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SP507 Datasheet, PDF (13/28 Pages) Sipex Corporation – +5V, Single Chip WAN Multi-Mode Serial Transceiver | |||
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Output
Under
Test CL
500â¦
S1
VCC
S2
Figure 34. Driver Timing Test Load Circuit
Receiver
Output
Test Point
1Kâ¦
S1
VCC
CRL
1Kâ¦
S2
Figure 35. Receiver Timing Test Load Circuit
DRIVER +3V
INPUT 0V
DRIVER A
OUTPUT B
DIFFERENTIAL VO+
OUTPUT 0V
VA âV B VOâ
f ⥠10MHz; tR ⤠10 ns; tF ⤠10ns
1.5V
1.5V
VO 1/2VO
tPLH
tPHL
tDPLH
tDPHL
tR
tSKEW = | tDPLH - tDPHL |
Figure 36. Driver Propagation Delays
1/2VO
tF
+3V
Mx or Tx_Enable
0V
5V
A, B
VOL
VOH
A, B
0V
1.5V
tZL
2.3V Output normally LOW
2.3V Output normally HIGH
tZH
Figure 37. Driver Enable and Disable Times
1.5V
tLZ
0.5V
0.5V
tHZ
AâB
V0D2 +
V0D2 â
VOH
RECEIVER OUT
VOL
tSKEW = âtPHL - tPLH â
tPLH
f > 10MHz; tR < 10ns; tF < 10ns
0V
INPUT
OUTPUT
(VOH - VOL)/2
tPHL
0V
(VOH - VOL)/2
Figure 38. Receiver Propagation Delays
SP507_100_081208
SP507 MultiâMode Serial Transceiver
13
© Copyright 2008 Exar Corporation
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