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參數(shù)資料
| 型號： | MAX4063EUD |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Replaced by TMS320VC33 : Digital Signal Processor 132-BQFP |
| 中文描述： | 1 CHANNEL, AUDIO PREAMPLIFIER, PDSO14 |
| 封裝： | 4.40 MM, MO-153AB-1, TSSOP-14 |
| 文件頁數(shù)： | 7/15頁 |
| 文件大?。?/td> | 404K |
| 代理商： | MAX4063EUD |
M
Differential Microphone Preamplifier with
Internal Bias and Complete Shutdown
_______________________________________________________________________________________
7
Detailed Description
The MAX4063 is a differential microphone pre-
amplifier providing high-quality amplification, optimized
for use in computer and mobile applications. This device
features adjustable gain, very high power-supply rejec-
tion (95dB), and common-mode rejection (79dB), making
it ideal for low-noise applications. The MAX4063 provides
a differential input stage, making the device particularly
effective when layout constraints force the microphone
amplifier to be physically remote from the ECM micro-
phone.
The MAX4063 is capable of switching its output
between the differential input and an inverting single-
ended input.
INT
/AUX selects either the differential
input or single-ended auxiliary input. In addition, the
MAX4063 has an integrated microphone bias source,
simplifying system design and eliminating the need for
external components. The MAX4063 has a complemen-
tary output allowing CODECs and other devices with
differential inputs to be optimally driven (see
Functional
Diagram
). The MAX4063 includes a 0.3μA shutdown
mode for ultimate power savings. The differential gain
of the MAX4063 is set with a single resistor connected
between the G1 and G2 pins. The MAX4063 has an
internal default gain of 20V/V on the AUX_IN input. The
AUX_IN gain can be increased with a single external
resistor (see the
Differential-Gain Adjustment and
Auxiliary Input-Gain Adjustment
sections).
Differential Input
The main microphone amplifier is a low-noise, differen-
tial input structure. This is an almost essential element
when faced with amplification of low-amplitude analog
signals in digitally intense environments such as note-
PIN
TSSOP
QFN
NAME
FUNCTION
1
15
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
16
INT
/AUX
Internal (Differential) or Auxiliary (Single-Ended) Input Select. Drive
INT
/AUX low to select
differential in or high to select auxiliary in.
3
1
SHDN
Shutdown Input. Drive
SHDN
high for normal operation. Drive
SHDN
low for shutdown
mode.
4
2
OUT
Amplifier Output. OUT is high impedance when in shutdown mode.
5
3
BIAS
External Electret Microphone Capsule Bias Output. Bypass BIAS with a 1μF capacitor to
ground.
6
4
V
CC
Power Supply. Bypass the V
CC
to GND with a 0.1μF capacitor.
Adjustable Gain Select for AUX_IN (see
Auxiliary Input-Gain Adjustment
section). Connect
a 10pF capacitor between OUT and ADJ.
7
5
ADJ
8
9
10
11
12
13
7
9
10
11
12
OUT
IN+
IN-
GND
AUX_IN
N.C.
Complementary Amplifier Output.
OUT
is high impedance in shutdown mode.
Noninverting Differential Amplifier Input. AC-couple the audio signal into IN+.
Inverting Differential Amplifier Input. AC-couple the audio signal into IN-.
Ground
Single-Ended Input for Auxiliary Microphone. AC-couple the audio signal into AUX_IN.
No Connection. Not internally connected.
6, 8, 14
14
13
G1
Gain-Selectable Input. Connect an external resistor between G1 and G2 to set the gain for
the differential amplifier.
Pin Description
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX4063EUD+ | 功能描述:傳聲器前置放大器 Integrated Circuits (ICs) 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 |
| MAX4063EUD+T | 功能描述:傳聲器前置放大器 Integrated Circuits (ICs) 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 |
| MAX4063EUD-T | 制造商:Maxim Integrated Products 功能描述:DIFFERENTIAL MICROPHONE PREAMPLIFIER WITH INT - Tape and Reel |
| MAX4063EVKIT | 制造商:Maxim Integrated Products 功能描述:DIFFERENTIAL MICROPHONE PREAMPLIFIER WITH INT - Bulk 制造商:Maxim Integrated Products 功能描述:Audio IC Development Tools MAX6061 Eval Kit |
| MAX40-64CA | 制造商:MDE 制造商全稱:MDE Semiconductor, Inc. 功能描述:HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR (TVS) DIODE STAND-OFF VOLTAGE 12 TO 150 Volts 40000 Watt Peak Pulse Power |
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