MAX9814ETD+T_MAX9814ETD+T音频放大器

MAX9814ETD+T_MAX9814ETD+T音频放大器_MAX9814ETD+T规格书

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MAX9814ETD+T，MAX9814ETD+T数据表，MAX9814ETD+T数据页，MAX9814ETD+T原理图，MAX9814ETD+T引脚，MAX9814ETD+T规格书，MAX9814ETD+T系列型号。

MAX9814ETD+T Description

The MAX9814 is a low-cost, high-quality microphoneamplifier with automatic gain control (AGC) and lownoise microphone bias. The device features a low-noisepreamplifier, variable gain amplifier (VGA), outputamplifier, microphone-bias-voltage generator and AGCcontrol circuitry.The low-noise preamplifier has a fixed 12dB gain, whilethe VGA gain automatically adjusts from 20dB to 0dB,depending on the output voltage and the AGC threshold. The output amplifier offers selectable gains of 8dB,18dB, and 28dB. With no compression, the cascade ofthe amplifiers results in an overall gain of 40dB, 50dB,or 60dB. A trilevel digital input programs the outputamplifier gain. An external resistive divider controls theAGC threshold and a single capacitor programs theattack/release times. A trilevel digital input programsthe ratio of attack-to-release time. The hold time of theAGC is fixed at 30ms. The low-noise microphone-biasvoltage generator can bias most electret microphones.The MAX9814 is available in the space-saving, 14-pinTDFN package. This device is specified over the-40°C to +85°C extended temperature range.

Maxim代理商|美信代理商 Maxim半导体公司成立于1983年，总部位于美国加利福尼亚的Sunnyvale，拥有75000多名员工，Maxim是模拟和混合信号集成产品设计、开发和生产领域的领导者之一。Maxim的电路将现实世界与数字世界“连接”在一起，通过检测和放大现实世界中的各种信号，如温度、压力和声音，并将其转换为计算机处理所需的数字信号。

Maxim代理依靠其独特的晶圆技术和顶级的工程研发团队，为快速增长的市场提供创新的解决方案。这种商业运作模式使其始终保持两位数的销售增长率。截至2007年6月30日，该公司的净收入为20.07亿美元。在财富1000强企业中，Maxim的利润（收入百分点）位居半导体公司之首（2006年4月17日，《财富》杂志）。2006年3月17日，Maxim的市场价值在全球半导体公司中排名第九。

MAX9814ETD+T Features

♦ Automatic Gain Control (AGC)

♦ Three Gain Settings (40dB, 50dB, 60dB)

♦ Programmable Attack Time

♦ Programmable Attack and Release Ratio

♦ 2.7V to 5.5V Supply Voltage Range

♦ Low Input-Referred Noise Density of 30nV/√Hz

♦ Low THD: 0.04% (typ)

♦ Low-Power Shutdown Mode

♦ Internal Low-Noise Microphone Bias, 2V

♦ Available in the Space-Saving, 14-Pin TDFN (3mmx 3mm) Package

♦ -40°C to +85°C Extended Temperature Range

MAX9814ETD+T Applications

Digital Still Cameras

Digital Video Cameras

PDAs

Bluetooth Headsets

Entertainment Systems(e.g., Karaoke)

Two-Way Communicators

High-Quality Portable

Recorders

IP Phones/Telephone

Conferencing

MAX9814ETD+T Pin Configuration (Top View)

MAX9814ETD+T Order Information

MAX9814ETD+T Function block or application schematic

MAX9814ETD+T Maxim美信热卖型号列表
MAX13487EESA+T	MAX3490ESA+T	MAX3232EEUE+T	ADR421ARZ-REEL7
MAX232ESE+T	MAX31855KASA+T	AD620ARZ-REEL7	MAX3471EUA+T
ADUM1201ARZ-RL7	ADUM1201BRZ-RL7	DS1307ZN+T&R	ADUM4160BRWZ-RL
MAX485ESA+T	LTM4644IY#PBF	MAX487ESA+T	AD8310ARMZ-REEL7
MAX3232ESE+T	AD8605ARTZ-REEL7	LM4040AIM3-3.0+T	ADN8834ACPZ-R7
MAX6675ISA+T	MAX485EESA+T	ADR3425ARJZ-R7	MAX9814ETD+T
AD7606BSTZ	MAX811TEUS+T	ADUM3160BRWZ-RL	AD5328BRUZ-REEL7
DS3231MZ+TRL	ADUM1250ARZ-RL7	MAX706SESA+T	OP2177ARZ-REEL7
ADM2483BRWZ-REEL	MAX485CSA+T	DS1307Z+T&R	AD623ARZ-R7
DS1302Z+T&R	MAX3490EESA+T	ADP151AUJZ-3.3-R7	MAX13487EESA+T
MAX3485EESA+T	ADP150AUJZ-3.3-R7	ADP7118AUJZ-5.0-R7	AD8628ARTZ-REEL7
MAX3485ESA+T	AD8066ARZ-R7	MAX809SEUR+T	OP2177ARZ
ADM2587EBRWZ-REEL7	AD620ARZ-REEL	MAX811SEUS+T	MAX706TESA+T
MAX3232CSE+T	ADA4522-2ARZ-R7	MAX3232EUE+T	ADP7118AUJZ-R7
AD623ARZ-R7	DS1302ZN+T&R	MAX490ESA+T	LT3045EDD#PBF
MAX31865ATP+T	ADuM1200ARZ-RL7	LT3042EMSE#TRPBF	AD7793BRUZ-REE
MAX98357AETE+T	ADM2582EBRWZ-REEL7	DS1339U-33+T&R	ADM3485EARZ-REEL7
DS18B20+	ADR4525BRZ-R7	MAX13085EESA+T	MAX232CSE+T
DS3231SN#T&R	ADM3053BRWZ-REEL7	ADP7182AUJZ-R7	ICL7662EBA+T
MAX44248ASA+T	AD9833BRMZ-REEL7	AD7689BCPZRL7	MAX660ESA+T
ADXL345BCCZ-RL7	AD620ARZ	MAX13488EESA+T	LT3045EDD#TRPBF
AD7190BRUZ-REEL	ADM2483BRWZ	AD7124-8BCPZ	OP27GSZ
ADM3251EARWZ-REEL	AD8605ARTZ-REEL	MAX14783EESA+T	AD7616BSTZ
MAX17048G+T10	AD8221ARZ-R7	MAX823REUK+T	AD8065ARTZ-REEL7
MAX3051EKA+T	MAX3232EEAE+T	MAX44246ASA+T	More models