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參數(shù)資料
| 型號： | ADM3490EARZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 2/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX RS485 3.3V FD 8-SOIC |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 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： | 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 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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| ADM3491 | 制造商:AD 制造商全稱:Analog Devices 功能描述:3.3 V, Full Duplex, 840 uA 20 Mbps, EIA RS-485 Transceiver |
| ADM3491AN | 制造商:Analog Devices 功能描述:LINE TRANSMITTER/RCVR 1TR 1TX 1RX 14PDIP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:3V FULL DUPLEX RS 485 I.C. - Bulk |
| adm3491an-1 | 制造商:Analog Devices 功能描述: |
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