home page > Products > 多路模拟开关
MAX9814ETD
Product images are for reference only Request product details

MAX9814ETD

  • 所属类别：多路模拟开关
  • 产品名称：麦克风放大器，带有AGC和低噪声麦克风偏置
  • 厂商：MAXIM
  • 生产批号：12+
  • 封装：SOP
  • 库存状态：有库存
  • 库存量：2070
  • 最低订购量：1
  • 详细资料：点击查找MAX9814ETD的pdf资料
  • 点击询价
联系我们在线客服1 在线客服2 点击发送邮件
  • Product Introduction

MAX9814ETD

Microphone amplifier with AGC and low-noise microphone bias

description

MAX9814 is a low-cost, high-quality microphone amplifier with automatic gain control (AGC) and low-noise microphone bias. The device features a low-noise preamplifier, variable gain amplifier (VGA), output amplifier, microphone bias voltage generator, and AGC control circuitry.

The low-noise front fixes 12 dB gain, while the VGA gain adjusts from 20dB to 0dB auto-adjusted based on output voltage and AGC threshold. The output amplifier offers selectable gain of 8 dB, 18 dB, and 28 dB. Uncompressed, cascading amplifiers at 40dB at 50dB, or 60dB total gain. Gain of a trilevel digital input/output amplifier. An external resistor divider controls the AGC threshold and capacitance scheme for a single attack/release time. A trilevel digital input program is the ratio of the attack release time. The AGC hold time at 30 ms is fixed. Low-noise microphone bias voltage generator biases most electret microphones.

MAX9814 is in a space-saving 14-pin TDFN package. The device is specified over the -40°C to +85°C extended stage temperature range.

Key features:

  • Automatic Gain Control (AGC)
  • Three gain settings (40 dB, 50 dB, 60 dB)
  • Programmable onset time
  • Programmable attack and release rate
  • 2.7V to 5.5V supply voltage range
  • Low input reference noise 30nV density/
  • Low total harmonic distortion: 0.04% (typical)
  • Low-power shutdown mode
  • Internal low-noise microphone bias, 2V
  • Available in a space-saving 14-pin TDFN (3mm x 3mm) package
  • -40°C to +85°C extended temperature range

Applications/Uses:

  • Bluetooth ® headsets
     
  • Digital camera
     
  • Digital video camera
     
  • Entertainment systems (e.g. karaoke)
     
  • High-quality portable voice recorder
     
  • IP Phone/Conference Call
     
  • handheld computer
     
  • Two communicators

MAX9814ETD-related ICs include:


Model Manufacturers lot number encapsulation illustrate
MAX9814ETD MAXIM 12+ SOP Microphone amplifier with AGC and low-noise microphone bias

Popular searches


Model Manufacturers lot number encapsulation illustrate
VGE1TS181900L SOURIAU-SUNBANK 24+ connector Circular MIL Spec Backshells BACKSHELL SZ18
KEYSTONE26 Keystone Electronics 24+ connector EYELET 0.187" BRASS TIN PLATED
KPSE06E14-19SA206 ITT 24+ connector Conn Circular SKT 19 POS Crimp ST Cable Mount 19 Terminal 1 Port
KPSE06J14-19P ITT 24+ connector Circular MIL Spec Connector KPSE 19C 19#20 PIN PLUG
W-1-005-4STUD T&M 24+ DIP SERIES W - Stud Input - 4 Stud Type
ABBH2214SDAM AB Connectors 2024+ connector Connector tailpipe
C193A/24EV-U1 Schaltebao 25+ DIP Voltage 1100v electric current 50A contactor/advantage channel fast delivery
C195A/24EC-U2 Schaltebao 25+ DIP Contactor/Advantage channel fast delivery
D-U204-E Mors Smitt 24+ DIP Instantaneous relays
PW620-18d/2S/R/KS135 FSG 24+ DIP Stellungsferngeber position sensor potentiometer
ST1-DC12V-F Panasonic Electronic Components 24+ DIP Power Relay 12VDC 5DC/8AAC SPST-NO/SPST-NC(31mm 14mm 11.3mm) THT
MER1S1505SC Murata Power Solutions 24+ DIP DC DC CONVERTER 5V 1W
P783-Q24-S5-S CUI Inc 24+ DIP DC DC CONVERTER 5V 15W
9001-18321C00A Oupiin 24+ connector DIN41612 Half R Female 48 Pin
9001-18481C00A Oupiin 24+ connector DIN41612 Half R Female 48 Pin
CIR013106T01031819SCNP0406 ITT Interconnect Solutions 2023+ connector Standard Circular Connector
CIR013106T01031819SCYP0406 ITT Interconnect Solutions 24+ connector Standard Circular Connector
110IMX35D12D12-8G Bel Power Solutions 24+ Relays DC DC CONVERTER 12V 12V 12V 35W
SF400-1F France Leach 24+ Relays RAILWAY SOCKET BASE - H MOUNTING STYLE
UTS6JC10E6S SOURIAU-SUNBANK 23+ connector CONN PLUG FMALE 6P GOLD SLDR CUP

MAXIM brand product recommendations


Model Manufacturers lot number encapsulation illustrate
MAX4581EUE+ MAXIM 10+11+ TSSOP-16 Original in stock
MAX4581EUE MAXIM 12+ TSSOP-16 Multiplexer switching circuit simulation
MAX1497 MAXIM 12+ SOP .5 and 4.5-bit, single-chip LED driver and μC interface ADC
MAX1495 MAXIM 2011+ 32-LQFP ADCs for 3.5 and 4.5-bit, single-chip LCD drivers
MAX1491 MAXIM 2011+ 32-LQFP ADCs for 3.5 and 4.5-bit, single-chip LCD drivers
MAX1493 MAXIM 2011+ 32-LQFP ADCs for 3.5 and 4.5-bit, single-chip LCD drivers
MAX1498 MAXIM 12+ TSSOP-14 Low-power, 3.5 and 4.5 digital, analog-to-digital converter (ADC) operation with integrated light-emitting diode (LED) driver from a single 2.7V to 5.25V supply.
MAX1496 MAXIM 12+ TSSOP-14 Low-power, 3.5 and 4.5 digital, analog-to-digital converter (ADC) operation with integrated light-emitting diode (LED) driver from a single 2.7V to 5.25V supply.
MAX1447 MAXIM 12+ TSSOP-14 Low-power, 3.5 and 4.5 digital, analog-to-digital converter (ADC) operation with integrated light-emitting diode (LED) driver from a single 2.7V to 5.25V supply.
MAX1365 MAXIM 2010+ 48-LQFP Independent 4-20mA output, 4.5-/3.5-Digit panel meter
MAX1368 MAXIM 11+ QFP48 Microcontroller interface, 4.5-/3.5-Digit panel meter 4-20mA output
MAX1366 MAXIM 11+ QFP48 Microcontroller interface, 4.5-/3.5-Digit panel meter 4-20mA output
DS1993 MAXIM 12+ SOP16 memorizer
DS1992 MAXIM 12+ SOP16 memorizer
DS1985U MAXIM 12+ BUTTON 1024-bit or 64 kbits electrically programmable read-only memory (EPROM)
DS1982U MAXIM 12+ BUTTON 1024-bit or 64 kbits electrically programmable read-only memory (EPROM)
DS1411-009 MAXIM 12+ uds A complex RS-232 1-Wire® adapter and I-button holder perform RS-232 level conversion and actively generate a 1-Wire communication signal
DS1404 MAXIM 12+ switch Touch and hold the cradle of the probe cable
DS9100C MAXIM 12+ usd Touch and hold the probe stamping
DS9100B MAXIM 12+ usd Touch and hold the probe stamping

Taxonomic search

Copyright chip100.com © 2010-2011 MCCT 粤ICP备14056028号

Related Links

wirewound resistor rectangular connector contacts crimping pliers term block hdr insulated terminals bus plug needle pusher cement resistance circular connectors ph connector