参数资料
型号: SP505BCM-L
厂商: Exar Corporation
文件页数: 5/35页
文件大小: 0K
描述: IC TXRX WAN MULTI-MODE 80LQFP
标准包装: 84
类型: 收发器
驱动器/接收器数: 7/7
规程: 多协议
电源电压: 5V
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(14x14)
包装: 托盘
3
Exar Coporation 48720 Kato Road, Fremont CA, 94538 (50) 668-7000 Fax (50) 668-707 www.exar.com
SP505_00_08308
Figure 34. Driver Timing Test Load Circuit
Figure 35. Receiver Timing Test Load Circuit
500
C L
Output
Under
Test
S 1
S 2
VCC
1K
CRL
R eceiver
Output
S 1
S 2
Test P oint
VCC
Figure 36. Driver Propagation Delays
Figure 37. Driver Enable and Disable Times
+3V
0V
DEC
X
5V
VOL
A,B
0V
1.5V
t
ZL
t
ZH
f = 1MHz; t
R ≤ 10ns; tF ≤ 10ns
VOH
A,B
2.3V
t
LZ
t
HZ
0.5V
Output normally LOW
Output normally HIGH
TX
ENABLE
Figure 38. Receiver Propagation Delays
+3V
0V
DRIVER
INPUT
B
A
DRIVER
OUTPUT
V
O
+
DIFFERENTIAL
OUTPUT
V
A - VB
0V
V
O
1.5V
t
DPLH
t
F
t
R
f ≥ 5MHz; t
R ≤ 10ns; tF ≤ 10ns
V
O
1/2V
O
1/2V
O
t
DPHL
t
SKEW = │tDPLH - tDPHL
t
PHL
t
PLH
V OH
VOL
R E CE IVE R OUT
(V OH - V OL)/2
(V OH - VOL)/2
tPLH
f > 5MHz; tR < 10ns; tF < 10ns
OUTP UT
V0D2 +
V 0D2
A – B
0V
tPHL
INP UT
tSKEW = | tPHL - tPLH |
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