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參數(shù)資料
| 型號(hào)： | MAX4819ETE |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | High-Bandwidth T1/E1 Dual-SPDT Switches/4:1 Muxes |
| 中文描述： | 高帶寬的T1/E1雙SPDT開關(guān)/ 4:1多路復(fù)用 |
| 文件頁數(shù)： | 11/21頁 |
| 文件大?。?/td> | 1367K |
| 代理商： | MAX4819ETE |
M
High-Bandwidth T1/E1 Dual-SPDT Switches/
4:1 Muxes
______________________________________________________________________________________
11
Detailed Description
The MAX4818/MAX4819 are each a high-bandwidth,
low-on-resistance dual-SPDT analog switch/4:1 multi-
plexer, respectively. Both the MAX4818 and the
MAX4819 are designed to serve as integrated T1/E1
analog protection switches for 1+1 and N+1 line-card
redundancy applications. These devices replace
electromechanical relays to save board space, reduce
power consumption, and simplify PC board routing.
The MAX4818/ MAX4819 allow the user to live insert the
boards with no adverse effects.
The MAX4818/MAX4819 operate from ±3.3V or ±5V
dual supplies, which are required for E1/T1 signal
switching in the line-side of the interface transformer.
Internal voltage multipliers supply the switches yielding
excellent linearity and low on-resistance, typically 4
within the E1/T1 analog signal range. This high-band-
width family of devices is optimized for low return loss
and matched pulse template performance in E1/T1
short-haul and long-haul applications.
Logic Inputs
The MAX4818 has four digital control inputs: EN, SET,
IN1, and IN2. The EN input enables the switches. A logic
1 on SET connects COM to the NO_ terminal. IN_ con-
trols the switch when SET is low, as shown in Table 1.
The MAX4819 has four digital control inputs: EN, SET,
A1, and A0. The EN input enables the multiplexer. A
logic 1 on SET connects all NO_ to COM. A1 and A0
control which terminal will be connected to COM when
SET is low, as shown in Table 2.
Analog Signal Levels
The on-resistance of the MAX4818/MAX4819 is very low
and stable as the analog signals are swept from V- to V+
(see the
Typical Operating Characteristics
).
Pin Description
PIN
MAX4818
1
2
3
4
5, 10, 16
MAX4819
1
2
3
12
5, 8, 10, 16
NAME
FUNCTION
NO1
V-
GND
NO2
N.C.
Analog Multiplexer Normally Open Terminal 1
Negative Supply Voltage. Bypass V- to ground with a 0.1μF ceramic capacitor.
Ground
Analog Multiplexer Normally Open Terminal 2
No Connect. Not Internally Connected.
6
6
EN
Enable Input. Connect EN to V+ or a logic-high for normal operation. Connect EN to
ground to disable all switches.
7
8
9
11
12
13
14
15
—
—
—
—
—
EP
—
—
—
11
—
—
—
15
4
7
9
13
14
EP
IN2
COM2
NC2
V+
NC1
COM1
IN1
SET
NO4
A0
NO3
COM
A1
EP
Switch 2 Logic-Level Input (See Table 1)
Analog Switch Common Terminal 2
Analog Switch Normally Close Terminal 2
Positive Supply Voltage. Bypass V+ to ground with a 0.1μF ceramic capacitor.
Analog Switch Normally Close Terminal 1
Analog Switch Common Terminal 1
Switch 1 Logic-Level Input (See Table 1)
Logic Input. Drive SET logic-high to set all switches. (See Tables 1, 2)
Analog Multiplexer Normally Open Terminal 4
Multiplexer Address Input 0 (See Table 2)
Analog Multiplexer Normally Open Terminal 3
Analog Multiplexer Common Terminal
Multiplexer Address Input 1 (See Table 2)
Exposed Paddle. Connect exposed paddle to V- or leave unconnected.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4818 | High-Bandwidth T1/E1 Dual-SPDT Switches/4:1 Muxes |
| MAX4819 | High-Bandwidth T1/E1 Dual-SPDT Switches/4:1 Muxes |
| MAX4820ETP | +3.3V/+5V, 8-Channel, Cascadable Relay Drivers with Serial/Parallel Interface |
| MAX4820EUP | +3.3V/+5V, 8-Channel, Cascadable Relay Drivers with Serial/Parallel Interface |
| MAX4821 | +3.3V/+5V, 8-Channel, Cascadable Relay Drivers with Serial/Parallel Interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4819ETE+ | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX4819ETE-T | 制造商:Maxim Integrated Products 功能描述:HIGH-BANDWIDTH T1/E1 DUAL-SPDT SWIT - Tape and Reel |
| MAX4819EUE | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX4819EUE+ | 功能描述:多路器開關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX481C/D | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 數(shù)據(jù)速率:1136 Kbps 工作電源電壓:3 V to 5.5 V 電源電流:5.9 mA 工作溫度范圍:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-28 封裝:Tube |
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