參數(shù)資料
型號(hào)： MAX4819
廠商： Maxim Integrated Products, Inc.
英文描述： High-Bandwidth T1/E1 Dual-SPDT Switches/4:1 Muxes
中文描述： 寬帶T1/E1、雙路SPDT開關(guān)/4:1復(fù)用器
文件頁(yè)數(shù)： 1/21頁(yè)
文件大小： 1367K
代理商： MAX4819
General Description
The MAX4818/MAX4819 high-bandwidth, low-on-resis-
tance analog dual SPDT switches/4:1 multiplexers are
designed to serve as integrated T1/E1 protection
switches for 1+1 and N+1 line-card redundancy appli-
cations. Each MAX4818/MAX4819 replaces four
electromechanical relays, significantly reducing board
space, simplifying PC board routing, and reducing
power consumption. These devices operate with ±3.3V
or ±5V dual supplies for applications requiring T1/E1
signal switching in the line side of the interface trans-
former. Internal voltage multipliers drive the analog
switches, yielding excellent linearity and low 4
typical
on-resistance within the T1/E1 analog signal range. This
high-bandwidth family of products is optimized for low
return loss and matched pulse template performance in
T1/E1 long-haul and short-haul applications.
The MAX4818/MAX4819 are available in a tiny 16-pin,
5mm x 5mm, thin QFN package and are specified over
the extended -40°C to +85°C temperature range.
Applications
T1/E1 Redundancy Switching
Base Stations and Base-Station Controllers
Add and Drop Multiplexers
Multi-Service Provisioning Platforms
Edge Routers
Multi-Service-Switches (MSSs)
Digital Loop Carriers
Industrial Applications
Data Acquisition
Telecom Signal Switching
Test Equipment
Avionics
Features
Dual SPDT and 4:1 Multiplexer Configurations
Dual-Supply Operation from ±3.3V to ±5V
Single-Supply Operation from +6V to +11V
Hot-Insertion Tolerant with No DC Path to the
Supplies
Low On-Resistance, R
ON
= 4
(typ) and 6
(max)
Over 350MHz -3dB Signal Bandwidth (MAX4818)
Excellent Crosstalk and Off-Isolation Performance
Over the T1/E1 Signal Spectrum: Over 110dB
Crosstalk Attenuation at 1MHz (MAX4818)
Low Current Consumption of 2mA (max)
-40°C to +85°C Extended Temperature Range
Space-Saving, 16-Pin, 5mm x 5mm Thin QFN
SET Controls All Switches Simultaneously For
Redundancy Switching (MAX4819)
M
High-Bandwidth T1/E1 Dual-SPDT Switches/
4:1 Muxes
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
19-3915; Rev 1; 1/07
THIN QFN (5mm x 5mm)
*EXPOSED PADDLE CONNECTED TO V-
COM1
16
1
2
3
4
12
11
10
9
15
14
13
5
6
7
8
N.C.
SET
IN1
N
V
N
N
V
G
N
N.C.
EN
IN2
COM2
N
MAX4818
TOP VIEW
*EP
+
Pin Configurations
Ordering Information
PART
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TQFN-EP*
16 TQFN-EP*
CONFIGURATION
2 x SPDT
4:1 MUX
PACKAGE CODE
T1655-3
T1655-3
MAX4818
ETE+
MAX4819
ETE+
Pin Configurations continued at end of data sheet.
*
EP = Exposed Paddle
Devices are available in lead-free packages.
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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+ 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
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