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參數(shù)資料
| 型號： | ISL4238EIRZ |
| 廠商： | INTERSIL CORP |
| 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, PQCC32 |
| 封裝： | 5 X 5 MM, LEAD FREE, PLASTIC, MO-220VHHD2, QFN-32 |
| 文件頁數(shù)： | 13/17頁 |
| 文件大?。?/td> | 457K |
| 代理商： | ISL4238EIRZ |
13
Mouse Driveability
The ISL424XE are specifically designed to power a serial
mouse while operating from low voltage supplies. Figure 11
shows the transmitter output voltages under increasing load
current. The on-chip switching regulator ensures the
transmitters will supply at least
±
5V during worst case
conditions (15mA for paralleled V+ transmitters, 7.3mA for
single V- transmitter).
6
High Data Rates
The ISL4238E/4XE maintain the RS-232
±
5V minimum
transmitter output voltages even at high data rates. Figure 12
details a transmitter loopback test circuit, and Figure 13
illustrates the ISL4238E/44E loopback test result at
120kbps. For this test, all transmitters were simultaneously
driving RS-232 loads in parallel with 1000pF, at 120kbps.
Figure 14 shows the ISL4238E/44E loopback results for a
single transmitter driving 1000pF and an RS-232 load at
250kbps. Figure 15 illustrates the ISL4245E loopback test
result at 250kbps. For this test, all transmitters were
simultaneously driving RS-232 loads in parallel with 1000pF,
at 250kbps. Figure 16 shows the ISL4245E loopback results
for a single transmitter driving 250pF and an RS-232 load at
1Mbps. The static transmitters were also loaded with an
RS-232 receiver.
TIME (20
μ
s/DIV.)
T1
T2
2V/DIV
5V/DIV
V
CC
= +3.3V
C1 - C4 = 0.1
μ
F
FORCEOFF
FIGURE 10. TRANSMITTER OUTPUTS WHEN EXITING
POWERDOWN
FIGURE 11. TRANSMITTER OUTPUT VOLTAGE vs LOAD
CURRENT (PER TRANSMITTER, i.e., DOUBLE
CURRENT AXIS FOR TOTAL V
OUT+
CURRENT)
T
LOAD CURRENT PER TRANSMITTER (mA)
0
2
4
6
8
10
-6
-4
-2
0
2
4
-5
-3
-1
1
3
5
1
3
5
7
9
V
OUT
+
V
OUT
-
V
CC
V
OUT
+
V
OUT
-
T1
T2
T3
V
CC
= 3.0V
ISL424XE
FIGURE 12. TRANSMITTER LOOPBACK TEST CIRCUIT
FIGURE 13. ISL4238E/44E LOOPBACK TEST AT 120kbps
FIGURE 14. ISL4238E/44E LOOPBACK TEST AT 250kbps
(C
L
= 1000pF)
ISL4238E/4XE
V
CC
C
1
C
2
C
4
+
C
3
+
+
+
C
L
V+
V-
5k
T
IN
R
OUT
C1+
C1-
C2+
C2-
R
IN
T
OUT
+
V
CC
0.1
μ
F
V
CC
FORCEOFF
FORCEON
T1
IN
T1
OUT
R1
OUT
5
μ
s/DIV.
V
CC
= +3.3V
C1 - C4 = 0.1
μ
F
5V/DIV.
T1
IN
T1
OUT
R1
OUT
2
μ
s/DIV.
V
CC
= +3.3V
C1 - C4 = 0.1
μ
F
5V/DIV.
ISL4238E, ISL4244E, ISL4245E
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| ISL4238EIRZ-T | 5V High-Speed RS-232 Transceivers with 0.1uF Capacitors |
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參數(shù)描述 |
|---|---|
| ISL4238EIRZ-T | 功能描述:IC XMITTER/RCVR ESD RS232 32-QFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:發(fā)射器 驅(qū)動器/接收器數(shù):4/0 規(guī)程:RS422，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| ISL4241E | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:QFN Packaged, +/-15kV ESD Protected, +2.7V to +5.5V, 10Nanoamp, 250kbps, RS-232 Transmitters/Receivers |
| ISL4241EIR | 功能描述:IC 3DRVR/5RCVR RS232 3V 32-QFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:25 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:16-PDIP 包裝:管件 |
| ISL4241EIR-T | 功能描述:IC 3DRVR/5RCVR RS232 3V 32-QFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:25 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:16-PDIP 包裝:管件 |
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