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參數(shù)資料
| 型號： | ICL3243IA-T |
| 廠商： | Intersil |
| 文件頁數(shù)： | 6/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC 3DRVR/5RCVR RS232 3V 28-SSOP |
| 標準包裝： | 1,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動器/接收器數(shù)： | 3/5 |
| 規(guī)程： | RS232 |
| 電源電壓： | 3 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
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14
FN4805.21
March 1, 2006
Mouse Driveability
The ICL324X have been specifically designed to power a
serial mouse while operating from low voltage supplies.
Figure 9 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). The Automatic Powerdown feature
does not work with a mouse, so FORCEOFF and
FORCEON should be connected to VCC.
High Data Rates
The ICL32XX maintain the RS-232 ±5V minimum transmitter
output voltages even at high data rates. Figure 10 details a
transmitter loopback test circuit, and Figure 11 illustrates the
loopback test result at 120kbps. For this test, all transmitters
were simultaneously driving RS-232 loads in parallel with
1000pF, at 120kbps. Figure 12 shows the loopback results
for a single transmitter driving 1000pF and an RS-232 load
at 250kbps. The static transmitters were also loaded with an
RS-232 receiver.
TIME (20
s/DIV)
T1
T2
2V/DIV
5V/DIV
VCC = +3.3V
FORCEOFF
FIGURE 8. TRANSMITTER OUTPUTS WHEN EXITING
POWERDOWN
C1 - C4 = 0.1
F
FIGURE 9. TRANSMITTER OUTPUT VOLTAGE vs LOAD
CURRENT (PER TRANSMITTER, i.e., DOUBLE
CURRENT AXIS FOR TOTAL VOUT+ CURRENT)
TRA
N
SMI
TTER
O
U
TPUT
VO
LT
AG
E
(V
)
LOAD CURRENT PER TRANSMITTER (mA)
024
68
10
-6
-4
-2
0
2
4
6
-5
-3
-1
1
3
5
1
3579
VOUT+
VOUT -
VCC
VOUT+
VOUT -
T1
T2
T3
VCC = 3.0V
ICL3241/43
FIGURE 10. TRANSMITTER LOOPBACK TEST CIRCUIT
FIGURE 11. LOOPBACK TEST AT 120kbps
FIGURE 12. LOOPBACK TEST AT 250kbps
ICL32XX
VCC
FORCEOFF
C1
C2
C4
C3
+
1000pF
V+
V-
5K
TIN
ROUT
C1+
C1-
C2+
C2-
RIN
TOUT
+
VCC
0.1
F
VCC
EN
SHDN OR
T1IN
T1OUT
R1OUT
5
s/DIV
VCC = +3.3V
5V/DIV
C1 - C4 = 0.1
F
T1IN
T1OUT
R1OUT
2
s/DIV.
5V/DIV.
VCC = +3.3V
C1 - C4 = 0.1
F
ICL3221, ICL3222, ICL3223, ICL3232, ICL3241, ICL3243
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| ICL3243EIV-T | IC 3DRVR/5RCVR RS232 3V 28-TSSOP |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICL3243IAZ | 功能描述:RS-232接口集成電路 RS232 3V 3D/5R AUTODWN IND 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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| ICL3243IAZ-T | 功能描述:RS-232接口集成電路 RS232 3V 3D/5R AUTODWN IND 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 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-100 封裝: |
| ICL3243IB | 制造商:Rochester Electronics LLC 功能描述:RS232 3V 3D/5R AUTODOWN 28SOIC IND - Bulk |
| ICL3243IV | 制造商:Rochester Electronics LLC 功能描述:RS232 3V 3D/5R AUTODOWN 28TSSOP IND - Bulk 制造商:Intersil Corporation 功能描述: |
| ICL3244 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:1 Microamp, +3V to +5.5V, 250kbps, RS-232 Transceivers with Enhanced Automatic Powerdown |
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