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MAX4910

更新时间： 2024-09-14 14:57:55
品牌 Logo 应用领域
亚德诺 - ADI 开关光电二极管
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13页 670K
描述
四路SPDT音频开关，无喀嗒声，可处理负信号

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MAX4910 数据手册

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19-3854; Rev 0; 2/06  
Quad-SPDT, Clickless Audio Switches  
with Negative Signal Handling  
General Description  
The MAX4910/MAX4911/MAX4912 quad, single-  
pole/double-throw (SPDT), clickless audio switches fea-  
ture negative signal capability that allows signals as low  
as V -5.5V to pass through without distortion. These  
CC  
analog switches have a low on-resistance, low supply  
current, and operate from a single +1.8V to +5.5V supply.  
Features  
♦ Distortion-Free Negative Signal Throughput Down  
to V  
- 5.5V  
CC  
♦ Internal Shunt Resistors Reduce Click-and-Pop  
Sounds  
♦ High PSRR Reduces Supply Noise  
♦ Low On-Resistance (0.37Ω)  
♦ 0.1Ω Channel-to-Channel Matching  
♦ 0.35Ω On-Resistance Flatness  
♦ +1.8V to +5.5V Single-Supply Voltage  
♦ -80dB Crosstalk (20kHz)  
The MAX4910/MAX4911/MAX4912 have internal shunt  
resistors that automatically discharge the capacitance at  
the normally open (NO) and normally closed (NC) termi-  
nals when they are not connected. The MAX4910/  
MAX4911 have shunt resistors on all NO and NC terminals  
and the MAX4912 has shunt resistors on all NO, NC1, and  
NC3 terminals. These shunt resistors reduce click-and-  
pop sounds that occur when switching audio signals  
between precharged points. A break-before-make feature  
further reduces popping.  
♦ -90dB Off-Isolation (20kHz)  
♦ 0.05% Total Harmonic Distortion  
♦ Enable Control (MAX4911)  
♦ 10nA Leakage Current  
The MAX4910/MAX4912 control the switches in pairs with  
two control bits CB1 and CB2. The MAX4911 has one con-  
trol bit to switch all four switches and an enable pin EN to  
put the switches in a high-impedance mode. The MAX4912  
has two terminals without shunt resistors for switching  
applications that do not require pre-discharge switching.  
♦ 150nA Supply Current  
Ordering Information  
PIN-  
PACKAGE  
TOP  
PKG  
PART  
TEMP RANGE  
The MAX4910/MAX4911/MAX4912 are available in a tiny  
16-pin TQFN-EP (3mm x 3mm) package and operate  
over the -40°C to +85°C extended temperature range.  
MARK CODE  
MAX4910ETE+ -40°C to +85°C 16 TQFN-EP** ADY T1633-4  
MAX4911ETE+* -40°C to +85°C 16 TQFN-EP** ADZ T1633-4  
MAX4912ETE+* -40°C to +85°C 16 TQFN-EP** AEA T1633-4  
Applications  
Cell Phones  
+ Denotes lead-free package.  
*Future product—contact factory for availability.  
**EP = Exposed pad.  
PDAs and Handheld Devices  
Notebook Computers  
MP3 Players  
Typical Operating Circuit appears at end of data sheet.  
Pin Configurations  
TOP VIEW  
COM4 NO4 CB2 NC3  
COM4 NO4  
12 11  
EN  
10  
NC3  
9
12  
11  
10  
9
COM3  
NO3  
COM3  
NO3  
13  
14  
13  
14  
NC4  
8
7
6
5
NC4  
8
7
6
5
V
CC  
V
CC  
MAX4910  
MAX4912  
MAX4911  
GND  
NC2  
GND  
NC2  
NO1 15  
16  
NO1 15  
16  
COM1  
COM1  
+
+
1
2
3
4
1
2
3
4
NC1 CB1 NO2 COM2  
NC1  
CB  
NO2 COM2  
THIN QFN  
3 mm x 3 mm  
THIN QFN  
3 mm x 3 mm  
________________________________________________________________ Maxim Integrated Products  
1
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.  
1234567...13

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