SP505 Datasheet, PDF (13/35 Pages) Sipex Corporation – WAN Multi-Mode Serial Transceiver

Output
Under
Test _CL
500Ω
S₁
V_CC
S₂
Receiver
Output
Test Point
1KΩ
S₁
V_CC
C_RL
1KΩ
S₂
Figure 34. Driver Timing Test Load Circuit
Figure 35. Receiver Timing Test Load Circuit
DRIVER ^+3V
INPUT _0V
B
DRIVER
OUTPUT _A
DIFFERENTIAL V_O⁺
OUTPUT 0V
V_A – V_B ^VO^–
t_{SKEW = |} t_{DPLH -} t_{DPHL |}
f > 5MHz; t_R < 10ns; t_F < 10ns
1.5V
t_PLH
V_O ^1/2VO
t_PHL
1.5V
t_DPLH
t_DPHL
t_R
Figure 36. Driver Propagation Delays
1/2V_O
t_F
TX_{ENABLE +3V}
DECX 0V
5V
A, B
V_OL
V_OH
A, B
0V
f = 1MHz; t_R ≤ 10ns; t_F ≤ 10ns
1.5V
t_ZL
2.3V _{Output normally LOW}
2.3V ^{Output normally HIGH}
t_ZH
Figure 37. Driver Enable and Disable Times
1.5V
t_LZ
0.5V
0.5V
t_HZ
A–B
V_0D2⁺
V_0D2^–
V_OH
RECEIVER OUT
V_OL
t_{SKEW = |} t_{PHL -} t_{PLH |}
t_PLH
f > 5MHz; t_R < 10ns; t_F < 10ns
0V
INPUT
OUTPUT
(VOH - VOL)/2
t_PHL
0V
(VOH - VOL)/2
Figure 38. Receiver Propagation Delays
Rev: A Date: 1/27/04
SP505 Multi–Mode Serial Transceiver
13
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