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參數(shù)資料
| 型號： | ADM3488ARZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 16/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS-422/485 3.3V 8-SOIC |
| 標(biāo)準(zhǔn)包裝： | 98 |
| 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： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 790 (CN2011-ZH PDF) |
Data Sheet
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
Rev. E | Page 5 of 20
TIMING SPECIFICATIONS—ADM3485/ADM3490/ADM3491
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 3.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Differential Output Delay (tDD)
1
22
35
ns
RL = 60 Ω
(see Figure 20 and Figure 26)
Differential Output Transition Time (tTD)
3
8
25
ns
RL = 60 Ω
(see Figure 20 and Figure 26)
Propagation Delay, Low-to-High Level (tPLH)
7
22
35
ns
RL = 27 Ω
(see Figure 21 and Figure 27)
Propagation Delay, High-to-Low Level (tPHL)
7
22
35
ns
RL = 27 Ω
(see Figure 21 and Figure 27)
8
ns
RL = 27 Ω
(see Figure 21 and Figure 27)
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3485/
ADM3491 ONLY)
Output Enable Time to Low Level (tPZL)
45
90
ns
RL = 110 Ω
(see Figure 23 and Figure 29)
Output Enable Time to High Level (tPZH)
45
90
ns
RL = 110 Ω
(see Figure 22 and Figure 28)
Output Disable Time from High Level (tPHZ)
40
80
ns
RL = 110 Ω
(see Figure 22 and Figure 28)
Output Disable Time from Low Level (tPLZ)
40
80
ns
RL = 110 Ω
(see Figure 23 and Figure 29)
Output Enable Time from Shutdown to Low Level (tPSL)
650
900
ns
RL = 110 Ω
(see Figure 23 and Figure 29)
Output Enable Time from Shutdown to High Level (tPSH)
650
900
ns
RL = 110 Ω
(see Figure 22 and Figure 28)
1 Measured on |tPLH (Y) tPHL (Y)| and |tPLH (Z) tPHL (Z)|.
TIMING SPECIFICATIONS—ADM3483/ADM3488
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 4.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Differential Output Delay (tDD)
600
900
1400
ns
RL = 60 Ω
Differential Output Transition Time (tTD)
400
700
1200
ns
RL = 60 Ω
Propagation Delay, Low-to-High Level (tPLH)
700
1000
1500
ns
RL = 27 Ω
Propagation Delay, High-to-Low Level (tPHL)
700
1000
1500
ns
RL = 27 Ω
100
ns
RL = 27 Ω
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3483 ONLY)
Output Enable Time to Low Level (tPZL)
900
1300
ns
RL = 110 Ω
Output Enable Time to High Level (tPZH)
600
800
ns
RL = 110 Ω
Output Disable Time from High Level (tPHZ)
50
80
ns
RL = 110 Ω
Output Disable Time from Low Level (tPLZ)
50
80
ns
RL = 110 Ω
Output Enable Time from Shutdown to Low Level (tPSL)
1.9
2.7
μs
RL = 110 Ω
Output Enable Time from Shutdown to High Level (tPSH)
2.2
3.0
μs
RL = 110 Ω
1 Measured on |tPLH (Y) tPHL (Y)| and |tPLH (Z) tPHL (Z)|.
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