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| 型号： | MAX4060ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 14/15页 |
| 文件大小： | 0K |
| 描述： | IC PREAMP AUDIO STER AB 8TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | AB 类 |
| 输出类型： | 2 通道（立体声） |
| 电源电压： | 4.5 V ~ 5.5 V |
| 特点： | 差分输入，麦克风 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
MAX4060/MAX4061/MAX4062
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
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
Ω output impedance.
44
5
VCC
Power Supply. Bypass the VCC to GND with a 0.1F capacitor.
5
6
IN+
Noninverting Differential Amplifier Input. AC-couple the audio signal into IN+.
6
7
IN-
Inverting Differential Amplifier Input. AC-couple the audio signal into IN-.
7
8
GND
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 1F
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.
——
—
EP
Exposed Pad (TDFN Only). Internally connected to GND. Connect to a large
ground plane to minimize thermal performance. Not intended as an electrical
connection point.
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 has an internal bias generator to bias the
microphone in either differential or single-ended
modes. The MAX4061 includes a complete 0.3A shut-
down 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4060EUA | 制造商:Maxim Integrated Products 功能描述:DIFFERENTIAL MICROPHONE PREAMPLIFIERS WITH IN - Rail/Tube |
| MAX4060EVKIT | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit for the MAX4060 |
| MAX4060-MAX4062 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Differential Microphone Preamplifiers with Internal Bias and Complete Shutdown |
| MAX4061 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Differential Microphone Preamplifiers with Internal Bias and Complete Shutdown |
| MAX4061EGA | 制造商:Maxim Integrated Products 功能描述:DIFFERENTIAL MICROPHONE PREAMPLIFIERS WITH IN - Rail/Tube |
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