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参数资料
| 型号： | MAX4550EWI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC CROSSPOINT SW AUD/VID 28SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 功能： | 音频/视频交叉点开关 |
| 电路： | 2 x 4:2 |
| 导通状态电阻： | 100 欧姆 |
| 电压电源： | 单/双电源 |
| 电压 - 电源，单路/双路(±)： | 2.7 V ~ 5.5 V，±2.7 V ~ 5.5 V |
| 电流 - 电源： | 7µA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 带卷 (TR) |
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
General Description
The MAX4550/MAX4570 serial-interface, programma-
ble, dual 4x2 audio/video crosspoint switches are ideal
for multimedia applications. Each device contains two
identical crosspoint switch arrays, each with four inputs
and two outputs. To improve off-isolation, use the addi-
tional crosspoint inputs SA and SB as shunts. Each out-
put is selectively programmable for clickless or regular
mode operation. A set of internal resistive voltage-
dividers supplies DC bias for each output when using
AC-coupled inputs. Additionally, four auxiliary outputs
control additional circuitry via the MAX4550/MAX4570’s
2-wire or 3-wire interface.
The MAX4550/MAX4570 feature 80
on-resistance, 10
on-resistance matching between channels, 5
on-
resistance flatness, and 0.014% total harmonic distor-
tion. Additionally, they feature off-isolation of at least
-110dB in the audio frequency range and -78dB at
4MHz, with -95dB crosstalk in the audio frequency
range and -54dB at 4MHz. The MAX4550 uses a 2-wire
I2C-compatible serial interface, while the MAX4570
uses a 3-wire SPI/QSPI or MICROWIRE-compati-
ble serial interface. These parts are available in 28-pin
SSOP and wide SO packages and are tested over
either the commercial (0°C to +70°C) or extended
(-40°C to +85°C) operating temperature range.
Applications
Set-Top Boxes
PC Multimedia Boards
High-End Audio Systems
Video Conferencing Systems
Features
o Selectable Soft Switching Mode for Clickless
Audio Operation
o 43
Typical On-Resistance (±5V Supplies)
o 5
Typical On-Resistance Matching Between
Channels
o 4
Typical On-Resistance Flatness
o 0.014% Total Harmonic Distortion with 1k
Load
o -110dB Off-Isolation at 20kHz
-78dB Off-Isolation at 4MHz
o -95dB Crosstalk at 20kHz
-54dB Crosstalk at 4MHz
o Serial Interface
2-Wire, Fast-Mode, I2C-Compatible (MAX4550)
3-Wire, SPI/QSPI/MICROWIRE-Compatible
(MAX4570)
o Four Auxiliary Outputs that Extend P Ports
o Single-Supply Operation: +2.7V to +5.5V
Dual-Supply Operation: ±2.7V to ±5.5V
MAX4550/MAX4570
Serially Controlled, Dual 4x2, Clickless
Audio/Video Analog Crosspoint Switches
________________________________________________________________
Maxim Integrated Products
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
SA
NO2B
NO2A
V-
V+
NO1B
SDA (DIN)
NO1A
GND
COM1A
Q3
COM1B
Q2
A1 (DOUT)
SCL (SCLK)
A0 (CS)
Q1
COM2B
( ) ARE FOR MAX4570.
Q0
COM2A
V+
NO4B
NO4A
BIASL
BIASH
NO3B
NO3A
SB
SO/SSOP
TOP VIEW
MAX4550
MAX4570
19-1397; Rev 0; 10/98
PART
MAX4550CAI
MAX4550CWI
MAX4550EAI
-40°C to +85°C
0°C to +70°C
TEMP. RANGE
PIN-PACKAGE
28 SSOP
28 Wide SO
28 SSOP
EVALUATION
KIT
AVAILABLE
Functional Diagram appears at end of data sheet.
Pin Configuration
Ordering Information
MAX4550EWI
-40°C to +85°C
28 Wide SO
MAX4570CAI
MAX4570CWI
MAX4570EAI
-40°C to +85°C
0°C to +70°C
28 SSOP
28 Wide SO
28 SSOP
MAX4570EWI
-40°C to +85°C
28 Wide SO
I2C is a trademark of Philips Corp.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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| MAX4551C/D | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4551CEE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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| MAX4551CEE+T | 功能描述:模拟开关 IC Quad Low-V SPST Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4551CEE-T | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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