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参数资料
| 型号： | MAX4745ELB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DUAL SPDT 10UDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program Low Voltage Analog Switches Overview |
| 标准包装： | 1 |
| 功能： | 音频开关 |
| 电路： | 2 x SPDT |
| 导通状态电阻： | 950 毫欧 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 1.8 V ~ 5.5 V |
| 电流 - 电源： | 300nA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN |
| 供应商设备封装： | 10-uDFN（2x2） |
| 包装： | 标准包装 |
| 其它名称： | MAX4745ELB+TDKR |
General Description
The MAX4744/MAX4744H/MAX4745/MAX4745H/
MAX4746H dual SPDT (single-pole/double-throw) audio
switches feature negative signal capability that allows
signals as low as VCC - 5.5V to pass through without
distortion. These analog switches have a low on-resis-
tance and low supply current, and operate from a single
+1.8V to +5.5V supply.
The MAX4744/MAX4744H have internal shunt resistors
that automatically discharge the capacitance at the nor-
mally open (NO) and normally closed (NC) terminals
when they are not connected. The MAX4746H features
internal shunt resistors on NC_ terminals. This reduces
click-and-pop sounds that occur when switching audio
signals between precharged points. A break-before-
make feature further reduces popping. The MAX4744/
MAX4745 control the switches with two control bits CB1
and CB2. The MAX4744H/MAX4745H/MAX4746H have
one control bit to switch both switches and an enable
input EN to put the switches in a high-impedance mode.
The MAX4744H/MAX4745H/MAX4746H also have an
internal protection network against voltages applied to
COM_ when VCC = 0V.
These devices are available in a space-saving 10-pin
DFN (2mm x 2mm) package and operate over the
-40°C to +85°C extended temperature range.
Applications
Speaker Switching
Power Routing
Cellular Phones
MP3 Players
PDAs and Other Handheld Devices
Notebook Computers
Features
o Distortion-Free Negative Signal Throughput Down
to VCC - 5.5V
o Internal Shunt Resistor Reduces Click/Pop
(MAX4744/MAX4744H)
o 0.6Ω (typ) Low On-Resistance
o 0.1Ω (max) Channel-to-Channel Matching
o 0.55Ω (max) On-Resistance Flatness
o +1.8V to +5.5V Single-Supply Voltage
o 0.01% (typ) Total Harmonic Distortion
o -75dB (typ) Crosstalk (100kHz)
o -68dB (typ) Off-Isolation (100kHz)
o Available in 10-Pin DFN Package (2mm x 2mm)
MAX4744/MAX4744H/MAX4745/MAX4745H/MAX4746H
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
________________________________________________________________
Maxim Integrated Products
1
19-0563; Rev 1; 11/06
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.
12
3
10
9
8
45
76
COM1
VCC
COM2
NC1
CB1
CB2
GND
NO1
MAX4744
MAX4745
μDFN
(2mm x 2mm)
TOP VIEW
NC2
NO2
12
3
10
9
8
45
76
COM1
VCC
COM2
NC1
EN
CB0
GND
NO1
MAX4744H
MAX4745H
MAX4746H
μDFN
(2mm x 2mm)
NC2
NO2
+
Pin Configurations
Ordering Information/Selector Guide
PART
PIN-
PACKAGE
TOP
MARK
CLICKLESS
COM PROTECTION
PKG CODE
MAX4744ELB+T
10 DFN-10
+AAF
Yes
No
L1022-1
MAX4744HELB+T
10 DFN-10
+AAG
Yes
L1022-1
MAX4745ELB+T
10 DFN-10
+AAH
No
L1022-1
MAX4745HELB+T
10 DFN-10
+AAI
No
Yes
L1022-1
MAX4746HELB+T
10 DFN-10
+AAM
Yes, on NC_
Yes
L1022-1
Note: All devices are specified over the -40°C to +85°C operating temperature range.
+
Denotes a lead-free package.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4745HELB+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX4745HELB+T | 功能描述:模拟开关 IC Dual SPDT Audio Clickless 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 |
| MAX4746HELB+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4746HELB+T | 功能描述:模拟开关 IC Dual SPDT Audio Clickless 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 |
| MAX4747EBE | 制造商:Maxim Integrated Products 功能描述:50OHM LOW-VOLTAGE QUAD SPST/DUAL - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
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