V
參數(shù)資料
型號: ADM3488EARZ-REEL7
廠商: Analog Devices Inc
文件頁數(shù): 20/20頁
文件大?。?/td> 0K
描述: IC TXRX ESD RS-485 3.3V 8-SOIC
標(biāo)準(zhǔn)包裝: 1,000
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: 帶卷 (TR)
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E
Rev. A | Page 9 of 20
TEST CIRCUITS AND SWITCHING CHARACTERISTICS
VOC
RL/2
Z
Y
VOD
0
628
4-
00
7
Figure 7. Driver Differential Output Voltage and
Common-Mode Output Voltage
RL
375
VOD
VCM =
–7V TO +12V
D
VCC
0
62
84-
00
8
Figure 8. Driver Differential Output Voltage with
Varying Common-Mode Voltage
VOH
IOH
(–)
VID
R
0
IOL
(+)
VOL
0628
4-
009
Figure 9. Receiver Output Voltage High and Output Voltage Low
IN
OUT
+1.5V
+3V
0V
≈ +2V
≈ –2V
tDD
tTD
50%
10%
90%
D
GENERATOR1
VCC
50
CL
RL =
60
CL = 15pF2
OUT
1PPR = 250kHz, 50% DUTY CYCLE,
tR ≤ 6.0ns, ZO = 50.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
06
28
4-
010
Figure 10. Driver Differential Output Delay and Transition Times
3V
0V
VOH
VOL
VOH
VOL
VOM
IN
Y
OUT
Z
OUT
1.5V
tPLH
tPHL
tPLH
D
VOM
RL = 27
OUT
CL = 15pF2
GENERATOR1
VCC
50
S1
VOM =
VOH + VOL
2
≈ 1.5V
1PPR = 250kHz, 50% DUTY CYCLE,
tR ≤ 6.0ns, ZO = 50.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
06
28
4-
01
1
Figure 11. Driver Propagation Delays
D
OUT
CL = 50pF2
GENERATOR1
50
S1
VOM =
VOH + VOL
2
≈ 1.5V
RL = 110
0V OR 3V
1PPR = 250kHz, 50% DUTY CYCLE,
tR ≤ 6.0ns, ZO = 50.
2CL INCLUDES PROBE AND STRAY CAPACITANCE.
0V
VOH
0V
3V
1.5V
0.25V
IN
OUT
VOM
tPZH
tPHZ
0628
4-
012
Figure 12. Driver Enable and Disable Times (tPZH, tPSH, tPHZ)
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