Datasheet > MAX9810AEBS-T

MAX9810AEBS-T

更新时间： 2024-01-22 05:38:39

品牌	Logo	应用领域
美信 - MAXIM		放大器
页数	文件大小	规格书
9页	224K
描述
Electret Condenser Microphone Cartridge Preamplifier

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技术参数
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MAX9810AEBS-T 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	BGA	包装说明：	VFBGA, BGA4,2X2,20
针数：	4	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.33.00.01
风险等级：	5.84	标称带宽：	900 kHz
商用集成电路类型：	AUDIO PREAMPLIFIER	增益：	30 dB
JESD-30 代码：	S-PBGA-B4	JESD-609代码：	e0
长度：	1.02 mm	湿度敏感等级：	1
信道数量：	1	功能数量：	1
端子数量：	4	最高工作温度：	85 °C
最低工作温度：	-40 °C	封装主体材料：	PLASTIC/EPOXY
封装代码：	VFBGA	封装等效代码：	BGA4,2X2,20
封装形状：	SQUARE	封装形式：	GRID ARRAY, VERY THIN PROFILE, FINE PITCH
峰值回流温度（摄氏度）：	245	电源：	2.5/5 V
认证状态：	Not Qualified	座面最大高度：	0.65 mm
子类别：	Audio/Video Amplifiers	最大压摆率：	0.95 mA
最大供电电压 (Vsup)：	5.5 V	最小供电电压 (Vsup)：	2.3 V
表面贴装：	YES	技术：	BICMOS
温度等级：	INDUSTRIAL	端子面层：	Tin/Lead (Sn/Pb)
端子形式：	BALL	端子节距：	0.5 mm
端子位置：	BOTTOM	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	1.02 mm

MAX9810AEBS-T 数据手册

Electret Condenser Microphone Cartridge

Preamplifier

Pin Description

Applications Information

RF Noise Rejection

The MAX9810 features excellent RF rejection at coꢀ-

ꢀon cellular-phone operating frequencies. Figure 4

shows the ꢀodulation products of a high-frequency

signal coupling into the device power supply, while the

device is driven with a 1kHz input. At 1GHz, the

MAX9810 exhibits 82dB of rejection.

BUMP

NAME

DESCRIPTION

Aꢀplifier Power Supply

OUT

Aꢀplifier Output

Aꢀplifier Input

Ground

GND

Detailed Description

Supply Bypassing

The MAX9810 replaces the FET coꢀꢀonly used in

ECMs with a high-gain, low-noise, low-output-iꢀpedance

aꢀplifier, offering iꢀproved perforꢀance over the tradi-

tional FET solution. The MAX9810 features high PSRR

(82dB at 1kHz), and is available in three gain options

(24dB, 27dB, and 30dB). ECMs with FET iꢀpedance

converters require additional aꢀplification (Figure 1).

The high gain of the MAX9810 eliꢀinates the need for an

external preaꢀplifier, allowing the ECM cartridge to be

directly connected to front-end devices such as

CODECs or ADCs (Figure 2). The MAX9810 also fea-

tures excellent RF iꢀꢀunity (see the RF Noise Rejection

section).

Unlike FETs, the MAX9810 requires a separate power

source (Figures 1 and 2). V

ꢀust be connected to a

2.3V to 5.5V power supply external to the ECM car-

tridge, thus the MAX9810 ECM solution requires three

electrical connections instead of the two coꢀꢀonly

found in current FET solutions.

For optiꢀuꢀ perforꢀance, bypass the MAX9810 as

close to the device as possible (inside the cartridge).

This yields the best RF rejection and PSRR and is ideal

for applications such as cell phones where high-fre-

quency noise is present. The device operates properly if

the bypass capacitor is placed on the circuit board out-

side the cartridge; however, RF rejection is slightly

degraded in this configuration (Figure 4). This is well

suited for applications where there is less high-frequen-

cy interference such as PDAs and notebook coꢀputers.

Rail-to-Rail Output

When operated froꢀ a 3V supply, the internal 1.5V DC

bias point provides syꢀꢀetrical, rail-to-rail operation

where the output can swing to within 15ꢀV of either rail

into a 10kΩ load. The 1.5V bias point is independent of

supply, so when operated froꢀ supplies other than 3V,

the MAX9810 output can run out of headrooꢀ on one of

the supplies (Figure 3). This liꢀits the peak-to-peak out-

put to approxiꢀately:

UCSP Layout

For land pattern and suggested layout of the 4-buꢀp

UCSP, see the JEDEC website at www.ipc.org/htꢀl/

fraꢀesetcatseg.htꢀl.

= 3V for V

> 3V

OUT(P-P)

= V

for V

< 3V

OUT(P-P)

The MAX9810 shows no phase reversal when the

device is overdriven. If the device output is driven into

clipping, the overload behavior is predictable.

_______________________________________________________________________________________

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与MAX9810AEBS-T相关器件

型号	品牌	描述	获取价格	数据表
MAX9810BEBS+T	MAXIM	Audio Preamplifier, 1 Channel(s), 1 Func, BICMOS, PBGA4, 2 X 2 MM, MICRO, CSP-4	获取价格
MAX9810BEBS-T	MAXIM	Electret Condenser Microphone Cartridge Preamplifier	获取价格
MAX9810CEBS+T	MAXIM	Audio Preamplifier, 1 Channel(s), 1 Func, BICMOS, PBGA4, 2 X 2 MM, MICRO, CSP-4	获取价格
MAX9810CEBS-T	MAXIM	Electret Condenser Microphone Cartridge Preamplifier	获取价格
MAX9812	MAXIM	Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias	获取价格
MAX9812	DALLAS	Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias	获取价格

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