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SP507 Datasheet, PDF (13/28 Pages) Sipex Corporation – +5V, Single Chip WAN Multi-Mode Serial Transceiver
Output
Under
Test CL
500Ω
S1
VCC
S2
Figure 34. Driver Timing Test Load Circuit
Receiver
Output
Test Point
1KΩ
S1
VCC
CRL
1KΩ
S2
Figure 35. Receiver Timing Test Load Circuit
DRIVER +3V
INPUT 0V
DRIVER A
OUTPUT B
DIFFERENTIAL VO+
OUTPUT 0V
VA –V B VO–
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
A–B
V0D2 +
V0D2 –
VOH
RECEIVER OUT
VOL
tSKEW = │tPHL - tPLH │
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 Multi–Mode Serial Transceiver
13
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