VOL V
參數(shù)資料
型號: ADM3491EARZ
廠商: Analog Devices Inc
文件頁數(shù): 2/20頁
文件大?。?/td> 0K
描述: IC TXRX RS-485 3.3V FD 14-SOIC
標準包裝: 56
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 14-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 14-SOICN
包裝: 管件
產(chǎn)品目錄頁面: 790 (CN2011-ZH PDF)
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E
Rev. A | Page 10 of 20
VOL
VCC
0V
3V
0.25V
IN
OUT
1.5V
tPSL
tPLZ
VOM
D
OUT
CL = 50pF2
GENERATOR1
50
S1
0V OR 3V
VCC
RL = 110
1PPR = 250kHz, 50% DUTY CYCLE,
tR ≤ 6.0ns, ZO = 50.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
06
28
4-
013
Figure 13. Driver Enable and Disable Times (tPZL, tPSL, tPLZ)
3V
0V
VCC
0V
IN
OUT
VOM
1.5V
tRPHL
tRPLH
GENERATOR1
50
CL = 15pF2
R
1.5V
0V
VOM =
VCC
2
OUT
VID
1PPR = 250kHz, 50% DUTY CYCLE,
tR ≤ 6.0ns, ZO = 50.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
06
28
4-
01
4
Figure 14. Receiver Propagation Delays
+3V
0V
VOH
0V
S1 OPEN
S2 CLOSED
S3 = +1.5V
S1 CLOSED
S2 OPEN
S3 = –1.5V
S1 OPEN
S2 CLOSED
S3 = +1.5V
S1 CLOSED
S2 OPEN
S3 = –1.5V
+3V
0V
VCC
VOL
+3V
0V
VCC
VOL
+3V
0V
VOH
0V
+1.5V
IN
OUT
IN
OUT
IN
OUT
IN
OUT
tRPZL
tRPSL
tRPLZ
tRPHZ
+0.25V
+1.5V
tRPZH
tRPSH
R
GENERATOR1
50
CL2
S3
S1
S2
VCC
+1.5V
–1.5V
VID
1k
1PPR = 250kHz, 50% DUTY CYCLE,
tR ≤ 6.0ns, ZO = 50.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
06
28
4-
0
15
Figure 15. Receiver Enable and Disable Times
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