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參數(shù)資料
| 型號(hào)： | 5962-89481012C |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | DAC |
| 英文描述： | PARALLEL, WORD INPUT LOADING, 12-BIT DAC, CQCC20 |
| 封裝： | CERAMIC, LCC-20 |
| 文件頁(yè)數(shù)： | 12/13頁(yè) |
| 文件大小： | 347K |
| 代理商： | 5962-89481012C |
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MAX4901–MAX4905
Low-RON, Dual-SPST/Single-SPDT Clickless
Switches with Negative Rail Capability
8
_______________________________________________________________________________________
Detailed Description
The MAX4901–MAX4905 are low on-resistance, low-volt-
age, dual-SPST and single-SPDT analog switches that
operate from a +1.8V to +5.5V supply and are fully speci-
fied for nominal 3.0V applications. The devices feature a
negative signal capability that allows signals below
ground to pass through without distortion and
have break-before-make switching (MAX4903/
MAX4904/MAX4905).
The MAX4905 features a comparator that can be used for
headphone or mute detection. The comparator threshold
is internally generated to be approximately 1/3 of VCC.
The MAX4902/MAX4904/MAX4905 feature an internal
shunt resistor to discharge any capacitance at NO_ and
NC connection points. This reduces the click-and-pop
sounds that occur when switching audio signals.
Applications Information
Digital Control Inputs
The MAX4901–MAX4905 logic inputs accept up to
+5.5V, regardless of supply voltage. For example, with
a +3.3V supply, IN_ can be driven low to GND and
high to +5.5V, allowing for mixing of logic levels in a
system. Driving IN_ rail-to-rail minimizes power
consumption. For a +1.8V supply voltage, the logic
thresholds are 0.5V (low) and 1.4V (high). For a +5V
supply voltage, the logic thresholds are 0.8V (low) and
2.0V (high).
Analog Signal Levels
The on-resistance of the MAX4901–MAX4905 changes
very little for analog input signals across the entire sup-
ply-voltage range (see the Typical Operating
Characteristics). The switches are bidirectional.
The MAX4901–MAX4905 pass signals as low as VCC -
5.5V, including signals below ground with minimal dis-
tortion. Note that there are shunt resistors on NO_ and
NC when they are unconnected to COM_ for the
MAX4902/MAX4904/MAX4905.
Comparator (MAX4905)
The MAX4905 includes a comparator that can be used
for mute and headphone detection functions. The posi-
tive terminal of the comparator is internally set to VCC / 3.
When the negative terminal (CMP-) is below the thresh-
old, the comparator output (CMPO) is a logic high.
The comparator threshold of VCC / 3 allows for detection
of headphones because headphone audio signals are
typically biased to VCC / 2.
Shunt Resistor
(MAX4902/MAX4904/MAX4905)
The 50
shunt resistors on the MAX4902/MAX4904/
MAX4905 automatically discharge any capacitance at
the NC or NO_ terminals when they are unconnected to
COM_. This reduces audio click-and-pop sounds that
occur when switching between audio sources.
MAX4905
COM
VCC
IN
CMP-
GND
MUTE
BUTTON
SPEAKER
AUDIO
SOURCE
1
NC
NO
CMPO
3
VCC
AUDIO
SOURCE
2
DirectDrive
SOURCE
Typical Operating Circuit
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| 5962-8948101VA | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| 5962-89481022A | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| 5962-89481022C | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| 5962-89481022X | 制造商:Analog Devices 功能描述:DAC 1-CH R-2R 12-bit 20-Pin LCC 制造商:Analog Devices 功能描述:DAC 1CH R-2R 12-BIT 20CLLCC - Rail/Tube 制造商:Analog Devices Inc. 功能描述:Digital to Analog Converters - DAC 12-BIT MONO.CONVERTER IC 制造商:Analog Devices 功能描述:CONVERTER - DAC |
| 5962-8948102VA | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時(shí)間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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