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參數(shù)資料
| 型號： | MAX3248ECAI |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| 中文描述： | TRIPLE LINE TRANSCEIVER, PDSO28 |
| 封裝： | 5.30 MM, 0.65 MM PITCH, SSOP-28 |
| 文件頁數(shù)： | 11/14頁 |
| 文件大?。?/td> | 235K |
| 代理商： | MAX3248ECAI |
M
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11
Transmitter Outputs when
Recovering from Shutdown
Figure 7 shows two transmitter outputs when recovering
from shutdown mode. As they become active, the out-
puts are shown going to opposite RS-232 levels (one
transmitter input is high, the other is low). Each trans-
mitter is loaded with 3k
in parallel with 2500pF. The
transmitter outputs display no ringing or undesirable
transients as they come out of shutdown. Note that the
transmitters are enabled only when the magnitude of V-
exceeds approximately 3V.
High Data Rates
The MAX3238E/MAX3248E maintain the RS-232 ±5.0V
minimum transmitter output voltage even at high data
rates. Figure 8 shows a transmitter loopback test cir-
cuit. Figure 9 shows a loopback test result at 120kbps,
V
CC
= 3.3V, C1–C4 = 0.1
μ
F, C
LOAD
= 1000pF
2
μ
s/div
T1IN
T1OUT
R1OUT
+5V
0
0
0
+5V
+5V
-5V
Figure 10. Loopback Test Result at 250kbps
V
CC
= 3.3V, C1
–
C4 = 0.1
μ
F, C
LOAD
= 1000pF
2
μ
s/div
T1IN
T1OUT
R1OUT
0
0
0
+5V
+5V
+5V
-5V
Figure 9. Loopback Test Result at 120kbps
4
μ
s/div
5V/div
2V/div
T2OUT
T1OUT
FORCEON =
FORCEOFF
V
CC
= 3.3V, C1
–
C4 = 0.1
μ
F, R
LOAD
= 3k
, C
LOAD
= 2500pF
Figure 7. Transmitter Outputs when Recovering from Shutdown
or Powering Up
MAX3238E
MAX3248E
5k
R_ IN
R_ OUT
C2-
C2+
C1-
C1+
V-
V+
V
CC
C4
C3*
C1
C2
V
CC
FORCEOFF
T_ OUT
T_ IN
GND
V
CC
*C3 CAN BE RETURNED TO V
CC
OR GND.
FORCEON
1000pF
Figure 8. Loopback Test Circuit
+3.0V to +5.5V, 10nA, 250kbps RS-232 Transceivers
with ±15kV ESD-Protected I/O and Logic Pins
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX3238E | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3238ECAI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3248E | ±15kV ESD-Protected, 3.0V to 5.5V, Low-Power, Up to 250kbps, True RS-232 Transceivers(±15kV ESD保護，3.0V至5.5V,低功耗,250kbps, RS-232收發(fā)器（5發(fā)3收）) |
| MAX3248EEAI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
| MAX3238EEAI | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX3248ECAI+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX3248ECAI+T | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3248ECAI-T | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3248EEAI | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| MAX3248EEAI+ | 功能描述:RS-232接口集成電路 RoHS:否 制造商:Exar 數(shù)據(jù)速率:52 Mbps 工作電源電壓:5 V 電源電流:300 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
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