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参数资料
型号： ADM3486EARZ-REEL7
厂商： Analog Devices Inc
文件页数： 16/20页
文件大小： 0K
描述： IC TXRX RS485 3.3V HD 8-SOIC
标准包装： 1,000
类型： 收发器
驱动器/接收器数： 1/1
规程： RS422，RS485
电源电压： 3 V ~ 3.6 V
安装类型： 表面贴装
封装/外壳： 8-SOIC（0.154"，3.90mm 宽）
供应商设备封装： 8-SO
包装： 带卷 (TR)
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E
Rev. A | Page 5 of 20
DRIVER TIMING SPECIFICATIONS
VCC = 3.3 V, TA = 25°C.
Table 3. ADM3483E/ADM3488E
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
MAXIMUM DATA RATE
250
kbps
DIFFERENTIAL OUTPUT DELAY
tDD
600
900
1400
ns
RL = 60 Ω (see Figure 10)
DIFFERENTIAL OUTPUT TRANSITION TIME
tTD
400
740
1200
ns
RL = 60 Ω (see Figure 10)
PROPAGATION DELAY
From Low to High Level
tPLH
700
930
1500
ns
RL = 27 Ω (see Figure 11)
From High to Low Level
tPHL
700
930
1500
ns
RL = 27 Ω (see Figure 11)
|tPLH tPHL| PROPAGATION DELAY SKEW1
tPDS
±50
ns
RL = 27 Ω (see Figure 11)
ENABLE/DISABLE TIMING (ADM3483E ONLY)
Enable Time to Low Level
tPZL
900
1300
ns
RL = 110 Ω (see Figure 13)
Enable Time to High Level
tPZH
600
800
ns
RL = 110 Ω (see Figure 12)
Disable Time from Low Level
tPLZ
50
80
ns
RL = 110 Ω (see Figure 13)
Disable Time from High Level
tPHZ
50
80
ns
RL = 110 Ω (see Figure 12)
Enable Time from Shutdown to Low Level
tPSL
1.9
2.7
μs
RL = 110 Ω (see Figure 13)
Enable Time from Shutdown to High Level
tPSH
2.2
3.0
μs
RL = 110 Ω (see Figure 12)
1 Measured on |tPLH (Y) tPHL (Y)| and |tPLH (Z) tPHL (Z)|.
VCC = 3.3 V, TA = 25°C.
Table 4. ADM3486E
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
MAXIMUM DATA RATE
2.5
Mbps
DIFFERENTIAL OUTPUT DELAY
tDD
20
42
70
ns
RL = 60 Ω (see Figure 10)
DIFFERENTIAL OUTPUT TRANSITION TIME
tTD
15
28
60
ns
RL = 60 Ω (see Figure 10)
PROPAGATION DELAY
From Low to High Level
tPLH
20
42
75
ns
RL = 27 Ω (see Figure 11)
From High to Low Level
tPHL
20
42
75
ns
RL = 27 Ω (see Figure 11)
|tPLH tPHL| PROPAGATION DELAY SKEW1
tPDS
6
±12
ns
RL = 27 Ω (see Figure 11)
ENABLE/DISABLE TIMING
Enable Time to Low Level
tPZL
52
100
ns
RL = 110 Ω (see Figure 13)
Enable Time to High Level
tPZH
52
100
ns
RL = 110 Ω (see Figure 12)
Disable Time from Low Level
tPLZ
40
80
ns
RL = 110 Ω (see Figure 13)
Disable Time from High Level
tPHZ
40
80
ns
RL = 110 Ω (see Figure 12)
Enable Time from Shutdown to Low Level
tPSL
700
1000
ns
RL = 110 Ω (see Figure 13)
Enable Time from Shutdown to High Level
tPSH
700
1000
ns
RL = 110 Ω (see Figure 12)
1 Measured on |tPLH (Y) tPHL (Y)| and |tPLH (Z) tPHL (Z)|.
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