參數(shù)資料
型號： ADM3491ARU-1REEL7
廠商： Analog Devices Inc
文件頁數(shù)： 17/20頁
文件大?。?/td> 0K
描述： IC TXRX RS-485 HS 3.3V 16TSSOP
標(biāo)準(zhǔn)包裝： 1
類型： 收發(fā)器
驅(qū)動(dòng)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： 16-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 16-TSSOP
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： ADM3491ARU-1REEL7DKR
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
Data Sheet
Rev. E | Page 6 of 20
TIMING SPECIFICATIONS—ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 5.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
RECEIVER
Time to Shutdown (tSHDN)
ADM3483/ADM3485/ADM34911
190
300
ns
Propagation Delay, Low-to-High Level (tRPLH)
ADM3485/ADM3490/ADM3491
25
65
90
ns
VID = 0 V to 3.0 V, CL = 15 pF (see Figure 24 and Figure 30)
ADM3483/ADM3488
25
75
120
ns
Propagation Delay, High-to-Low Level (tRPHL)
ADM3485/ADM3490/ADM3491
25
65
90
ns
VID = 0 V to 3.0 V, CL = 15 pF (see Figure 24 and Figure 30)
ADM3483/ADM3488
25
75
120
ns
|tPLH – tPHL| Propagation Delay Skew (tRPDS)
ADM3485/ADM3490/ADM3491
10
ns
VID = 0 V to 3.0 V, CL = 15 pF (see Figure 24 and Figure 30)
ADM3483/ADM3488
20
ns
RECEIVER OUTPUT ENABLE/DISABLE TIMES
(ADM3483/ADM3485/ADM3491 ONLY)
Output Enable Time to Low Level (tPRZL)
25
50
ns
CL = 15 pF (see Figure 25 and Figure 31)
Output Enable Time to High Level (tPRZH)
25
50
ns
CL = 15 pF (see Figure 25 and Figure 31)
Output Disable Time from High Level (tPRHZ)
25
45
ns
CL = 15 pF (see Figure 25 and Figure 31)
Output Disable Time from Low Level (tPRLZ)
25
45
ns
CL = 15 pF (see Figure 25 and Figure 31)
Output Enable Time from Shutdown to
Low Level (tPRSL)
720
1400
ns
CL = 15 pF (see Figure 25 and Figure 31)
Output Enable Time from Shutdown to
High Level (tPRSH)
720
1400
ns
CL = 15 pF (see Figure 25 and Figure 31)
1 The transceivers are put into shutdown by bringing the RE high and DE low. If the inputs are in this state for less than 80 ns, the parts are guaranteed not to enter
shutdown. If the parts are in this state for 300 ns or more, the parts are guaranteed to enter shutdown.
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