參數(shù)資料
型號: SP3508EB
廠商: Exar Corporation
文件頁數(shù): 14/36頁
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR SP3508
標(biāo)準(zhǔn)包裝: 1
主要目的: 接口,收發(fā)器,RS-232,RS-449,EIA-530(A),X.21
嵌入式:
已用 IC / 零件: SP3508
主要屬性: 內(nèi)部線路或數(shù)字回路測試
次要屬性: 8 個驅(qū)動器和 8 個接收器
已供物品:
其它名稱: 1016-1626
2
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (50)668-707 www.exar.com
SP3508_00_072208
Figure 33. Driver Timing Test Load Circuit
Figure 34. Receiver Timing Test Load Circuit
Figure 35. Driver Propagation Delays
Figure 36. Driver Enable and Disable Times
Figure 37. Receiver Propagation Delays
500
C L
Output
Under
Test
S 1
S 2
VCC
1K
CRL
R eceiver
Output
S 1
S 2
Test P oint
VCC
+3V
0V
5V
V OL
A, B
0V
1.5V
tZL
tZH
V OH
A, B
2.3V
tLZ
tHZ
0.5V
Output normally L OW
Output normally H IG H
Mx or Tx_Enable
f = 1MHz; tR ≤ 10ns; tF ≤ 10ns
V OH
VOL
R E C E IVE R OUT
(V OH - V OL)/2
(V OH - VOL)/2
tPLH
f > 10MHz; tR < 5ns; tF < 5ns
OUTP UT
V0D2 +
V 0D2
A – B
0V
tPHL
INP UT
tSKEW = | tPHL - tPLH |
+3V
0V
DR IV E R
INP UT
A
B
DR IV E R
OUTP UT
V O+
DIFFE R E NTIAL
OUTP UT
V B – V A
0V
VO
1.5V
tPLH
tR
tF
f > 10MHz; tR < 5ns; tF < 5ns
V O 1/2V O
1/2V O
tPHL
tDPLH
tDPHL
tSKEW = | tDPLH - tDPHL |
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