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參數資料
| 型號： | MAX4061ETA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 16-Bit Fixed-Point DSP with ROM 64-TQFP -40 to 125 |
| 中文描述： | 1 CHANNEL, AUDIO PREAMPLIFIER, DSO8 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, TQFN-8 |
| 文件頁數： | 8/17頁 |
| 文件大?。?/td> | 443K |
| 代理商： | MAX4061ETA |
M
Differential Microphone Preamplifiers with
Internal Bias and Complete Shutdown
8
_______________________________________________________________________________________
Pin Description
PIN
MAX4060
MAX4061
MAX4062
NAME
FUNCTION
1
—
2
INT
/AUX
Internal (Differential) or Auxiliary (Single-Ended) Input Select. Drive
INT
/AUX low
to select internal or high to select auxiliary microphone input.
2
3
3
OUT
Amplifier Output. OUT is high impedance when in shutdown mode.
3
—
—
BIAS
External Electret Microphone Capsule Bias Output. BIAS has a greater than
2k
output impedance.
4
4
5
V
CC
Power Supply. Bypass the V
CC
to GND with a 0.1μF capacitor.
5
6
7
5
6
7
6
7
8
IN+
IN-
GND
Noninverting Differential Amplifier Input. AC-couple the audio signal into IN+.
Inverting Differential Amplifier Input. AC-couple the audio signal into IN-.
Ground
8
—
9
AUX_IN
Single-Ended Input for Auxiliary Microphone. AC-couple the audio signal into
AUX_IN.
—
1
1
G2
Gain-Selectable Input. Connect an external resistor between G1 and G2 to set
the gain for the differential amplifier. (See
Adjustable Differential-Gain Setting
section.)
—
2
—
SHDN
Shutdown Input. Drive
SHDN
high for normal operation. Drive
SHDN
low for
shutdown mode.
—
—
4
BIAS
External Electret Microphone Capsule Bias Output Bypass BIAS with 1μF
Capacitor to Ground
—
8
10
G1
Gain-Selectable Input. Connect an external resistor between G1 and G2 to set
the gain for the differential amplifier.
Detailed Description
The MAX4060/MAX4061/MAX4062 are differential micro-
phone preamplifiers providing high-quality audio, opti-
mized for use in computer and mobile applications.
These devices feature rail-to-rail outputs, very high
power-supply rejection, and common-mode rejection,
making them ideal for low-noise applications. The
MAX4060/MAX4061/MAX4062 are particularly effective
when layout constraints force the microphone amplifier to
be physically remote from the ECM microphone and/or
the rest of the audio circuitry.
The MAX4060/MAX4062 are capable of switching their
output between the differential input and an inverting
single-ended input.
INT
/AUX selects either the differen-
tial input or single-ended auxiliary input. In addition, the
MAX4060/MAX4061 have an internal bias generator to
bias the microphone in either differential or single-
ended modes. The MAX4061 includes a complete
0.3μA shutdown mode for ultimate power savings. The
differential gain of the MAX4061/MAX4062 is set with a
single resistor connected between the G1 and G2 pins.
The MAX4060 has a fixed gain of 10V/V.
Differential Input
The main microphone input is a low-noise, differential
input structure. This is an almost essential element
when faced with amplification of low-amplitude analog
signals in digitally intense environments such as note-
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 can be placed
physically further apart, easing PC board layout
restrictions.
相關PDF資料 |
PDF描述 |
|---|---|
| MAX4062EUB | 16-bit fixed point DSP with ROM 100-LQFP -40 to 85 |
| MAX4060EUA | Differential Microphone Preamplifiers with Internal Bias and Complete Shutdown |
| MAX4063 | 16-bit fixed point DSP with ROM 100-LQFP -40 to 125 |
| MAX4063ETE | Replaced by TMS320VC33 : Digital Signal Processor 132-BQFP 0 to 70 |
| MAX4063EUD | Replaced by TMS320VC33 : Digital Signal Processor 132-BQFP |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX4061ETA+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP MCRPH 1CH MONO CLS-AB 8TDFN EP - Rail/Tube |
| MAX4061ETA+T | 功能描述:傳聲器前置放大器 Differential Mic Preamplifier RoHS:否 制造商:Texas Instruments 可用增益調整:Digital control, 65 dB to 0 dB 共模抑制比（最小值）: 輸入補償電壓: 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 |
| MAX4061ETA-T | 功能描述:傳聲器前置放大器 RoHS:否 制造商:Texas Instruments 可用增益調整:Digital control, 65 dB to 0 dB 共模抑制比（最小值）: 輸入補償電壓: 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 |
| MAX4061EUA | 制造商:Maxim Integrated Products 功能描述:DIFFERENTIAL MICROPHONE PREAMPLIFIERS WITH IN - Bulk |
| MAX4061EUA+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP MCRPH 1CH MONO CLS-AB 8PIN UMAX - Rail/Tube |
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