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參數資料
| 型號： | ADM2209E |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | EMI-/EMC-Compliant +-15 kV ESD Protected, Dual RS-232 Port with Standby |
| 中文描述： | EMI-/EMC-Compliant -15千伏ESD保護，雙路RS - 232備用端口 |
| 文件頁數： | 11/12頁 |
| 文件大小： | 142K |
| 代理商： | ADM2209E |
REV. 0
ADM2209E
–11–
Testing for immunity involves irradiating the device with an EM
field. There are various methods of achieving this, including use
of an echoic chamber, stripline cell, TEM cell, GTEM cell. A
stripline cell consists of two parallel plates with an electric field
developed between them. The device under test is placed within
the cell and exposed to the electric field. There are three severity
levels having field strengths ranging from 1 V to 10 V/m. Results
are classified in a fashion similar to those for IEC1000-4-4.
1. Normal operation.
2. Temporary degradation or loss of function that is self-
recoverable when the interfering signal is removed.
3. Temporary degradation or loss of function that requires
operator intervention or system reset when the interfering
signal is removed.
4. Degradation or loss of function that is not recoverable due to
damage.
The ADM2209E easily meets Classification 1 at the most strin-
gent (Level 3) requirement. In fact, field strengths up to 30 V/m
showed no performance degradation and error-free data trans-
mission continued even during irradiation.
Table VII. Test Severity Levels (IEC1000-4-3)
Field Strength
V/m
Level
1
2
3
1
3
10
EMISSIONS/INTERFERENCE
EN55 022, CISPR22 defines the permitted limits of radiated
and conducted interference from Information Technology (IT)
equipment. The objective of the standard is to minimize the
level of emissions, both conducted and radiated.
APPLICATIONS INFORMATION
In a typical Data Terminal Equipment (DTE) to Data Circuit
Terminating Equipment (DCE) 9-lead de facto interface imple-
mentation, two data lines (TxD and RxD) and six control lines
(RTS, DTR, DSR, CTS and RI) are required. With its six
drivers and ten receivers, the ADM2209E offers a single-chip
solution for the two RS-232 ports normally supplied as standard
in a desktop or notebook personal computer, as shown in Figure
28. The flow-through pinout of the device allows for a very
simple PCB layout, and allows a ground plane to be placed
beneath the IC, and ground lines to be inserted between the
signal lines to minimize crosstalk, without the complication of
multilayer PCBs.
Note that the two receivers kept active by the standby supply
(R5
IN
A and R5
IN
B) should be connected to the Ring In (RI)
line, so that the system can be awakened when a peripheral
device begins to communicate.
FAIL-SAFE RECEIVER OUTPUTS
The ADM2209E has fail-safe receiver outputs that assume a
high output level if the receiver input is zero or open-circuit.
LAPLINK COMPATIBILITY
The ADM2209E can operate up to 460 kbps data rate under
maximum driver load conditions of C
L
= 1000 pF and
R
L
= 3 k
at minimum power supply voltages.
SUPER I/O
CHIP
DCD
DSR
RxD
RTS
TxD
CTS
DTR
RI
DCD
DSR
RxD
RTS
TxD
CTS
DTR
RI
1
2
3
4
5
6
8
9
DCD
DSR
RxD
RTS
TxD
CTS
DTR
RI
DCD
DSR
RxD
RTS
TxD
CTS
DTR
RI
0.1
m
F
+12V
+3V or +5V
9-WAY D
CONNECTOR
COM2
9-WAY D
CONNECTOR
COM1
7
1
2
3
4
5
6
8
9
7
R1
T3
R3
R2
T1
T2
R4
R5
T3
R3
R2
T1
T2
R4
R1
R5
ADM2209E
0.1
m
F
0.1
m
F
0.1
m
F
Figure 28. Typical Application for a Dual Serial Port
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| ADM2209EARU | 功能描述:IC TXRX6/10 RS-232 12V 38TSSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| ADM2209EARU-REEL | 功能描述:IC TXRX6/10 RS-232 12V 38TSSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| ADM2209EARU-REEL7 | 功能描述:IC TXRX6/10 RS-232 12V 38TSSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
| ADM2209EARUZ | 功能描述:IC TXRX6/10 RS-232 12V 38TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 產品培訓模塊:RS-232 & USB Transceiver 標準包裝:2,000 系列:- 類型:收發器 驅動器/接收器數:1/1 規程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
| ADM2209EARUZ-REEL | 功能描述:IC TXRX 6/10 RS-232 DUAL 38TSSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅動器，接收器，收發器 系列:- 標準包裝:27 系列:- 類型:收發器 驅動器/接收器數:3/3 規程:RS232，RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC 包裝:管件 |
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