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參數(shù)資料
| 型號(hào)： | MAX4063 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 16-bit fixed point DSP with ROM 100-LQFP -40 to 125 |
| 中文描述： | 差分麥克風(fēng)前置放大器，內(nèi)部偏置并可完全關(guān)斷 |
| 文件頁(yè)數(shù)： | 8/15頁(yè) |
| 文件大小： | 404K |
| 代理商： | MAX4063 |
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M
Differential Microphone Preamplifier with
Internal Bias and Complete Shutdown
8
_______________________________________________________________________________________
book PCs or PDAs. Used correctly, the advantages
over a single-ended solution are:
Better power-supply noise rejection.
Less degradation from noise in PC board ground
planes.
The microphone and preamplifier may be placed
physically further apart, easing PC board layout
restrictions.
Differential-Gain Adjustment
The MAX4063 allows the user to alter the differential
gain to optimize the signal-to-noise ratio (SNR) of their
system. The gain is set by a single external resistor
(R
G
) connected between the G1 and G2 pins:
where A
V
is the required voltage gain.
Hence, an 11.11k
resistor yields a gain of 20V/V, or
26dB. Leaving the pins unconnected results in a gain of
2V/V. Gain is defined as:
For differential out:
The resistor can be either fixed or variable, allowing the
use of a digitally controlled potentiometer to alter the
gain under software control.
Auxiliary Input-Gain Adjustment
The MAX4063 provides an option to increase the
AUX_IN (see Figure 3). To increase the gain, connect
resistor R
ADJ
between the ADJ and AUX_IN pins. R
ADJ
is
calculated from the following formula:
R
2M
AV
ADJ
AUX
=
20
(
)
to increase the gain
A
V
V
VD
OUT
OUT
V
V
IN+
IN-
=
R
200k
A
VD
G
=
2
BIAS
BIAS
AUX_IN
12
IN-
IN+
10
9
6
V
CC
2.4V TO 5.5V
MAX4063
2
INT/AUX
8
OUT
OUT
ADJ
4
7
GND
11
SHDN
SHDN
V
CC
3
BIAS
5
V
BIAS
G2
G1
1
14
R
G
Functional Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX4063ETE | Replaced by TMS320VC33 : Digital Signal Processor 132-BQFP 0 to 70 |
| MAX4063EUD | Replaced by TMS320VC33 : Digital Signal Processor 132-BQFP |
| MAX4066CEE | Low-Cost, Low-Voltage, Quad, SPST, CMOS Analog Switches |
| MAX4066AEEE | Circular Connector; No. of Contacts:15; Series:MS27466; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:15; Circular Contact Gender:Socket; Circular Shell Style:Wall Mount Receptacle RoHS Compliant: No |
| MAX4066A | Low-Cost.Low-Voltage.Quad.SPST.CMOS Analog Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4063_11 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Differential Microphone Preamplifier with Internal Bias and Complete Shutdown |
| MAX4063ETE | 功能描述:傳聲器前置放大器 RoHS:否 制造商:Texas Instruments 可用增益調(diào)整:Digital control, 65 dB to 0 dB 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 最大輸入電阻:9200 Ohms 最大工作溫度:+ 85 C 封裝 / 箱體:SSOP-28 封裝:Tube |
| MAX4063ETE+ | 功能描述:傳聲器前置放大器 Differential Mic Preamplifier RoHS:否 制造商:Texas Instruments 可用增益調(diào)整:Digital control, 65 dB to 0 dB 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 最大輸入電阻:9200 Ohms 最大工作溫度:+ 85 C 封裝 / 箱體:SSOP-28 封裝:Tube |
| MAX4063ETE+T | 功能描述:傳聲器前置放大器 Differential Mic Preamplifier RoHS:否 制造商:Texas Instruments 可用增益調(diào)整:Digital control, 65 dB to 0 dB 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 最大輸入電阻:9200 Ohms 最大工作溫度:+ 85 C 封裝 / 箱體:SSOP-28 封裝:Tube |
| MAX4063ETE-T | 功能描述:傳聲器前置放大器 RoHS:否 制造商:Texas Instruments 可用增益調(diào)整:Digital control, 65 dB to 0 dB 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 最大輸入電阻:9200 Ohms 最大工作溫度:+ 85 C 封裝 / 箱體:SSOP-28 封裝:Tube |
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