WM7121P datasheet(1/13 Pages) WOLFSON

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WM7121P, WM7121PE

Top Port Analogue Silicon Microphone

WOLFSON MICROELECTRONICS plc

Pre-Production, June 2014, Rev 3.0

Copyright

2014 Wolfson Microelectronics plc

DESCRIPTION

The WM7121P is a low-profile silicon analogue microphone.

It offers high Signal to Noise Ratio (SNR) and low power

consumption and is suited to a wide variety of consumer

applications.

The

WM7121P

incorporates

Wolfson’s

proprietary

CMOS/MEMS membrane technology, offering high reliability

and high performance in a miniature, low-profile package.

The WM7121P is designed to withstand the high

temperatures associated with automated flow solder

assembly processes. (Note that conventional microphones

can be damaged by this process.)

The WM7121P Top Port microphone offers matched

performance to the WM7132P Bottom Port microphone. The

matched characteristics enable highly accurate sound pick-

up in opposite directions, suitable for noise cancellation and

other DSP algorithms.

The WM7121PE variant offers a tighter tolerance on the

microphone sensitivity, giving reduced variation between

parts. This removes the need for in-line production

calibration of part-to-part microphone variations.

FEATURES



High SNR (65dB)



Low variation in sensitivity

-

±3dB tolerance (WM7121P)

-

±1dB tolerance (WM7121PE)



Matched pair with Bottom Port microphone WM7132P

-

Matched sensitivity, roll-off, and phase response



Low current consumption (190µA)



Analogue output



Top Port LGA Package



1.5V to 3.7V supply

APPLICATIONS



Mobile phone handsets



Portable media players



Digital still cameras



Digital video cameras



Bluetooth headsets



Portable navigation devices



Portable games consoles

BLOCK DIAGRAM

3D VIEW

3.76mm x 2.95mm x 1.10mm LGA package

Số phần tương tự - WM7121P

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Cirrus Logic	WM7121PE	704Kb / 12P	Top Port Analog Silicon Microphone

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Mô tả tương tự - WM7121P

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Wolfson Microelectronic...	WM7120A	178Kb / 12P	Top Port Analogue Silicon Microphone
	WM7121	219Kb / 12P	Top Port Analogue Silicon Microphone
	WM7130A	340Kb / 12P	Bottom Port Analogue Silicon Microphone
	WM7132	338Kb / 12P	Bottom Port Analogue Silicon Microphone
	WM7210	247Kb / 12P	Top Port Digital Silicon Microphone
	WM7220	254Kb / 12P	Top Port Digital Silicon Microphone
	WM7133L	296Kb / 13P	Bottom Port Analogue Silicon Microphone
	WM7211	305Kb / 14P	Top Port Digital Silicon Microphone
Cirrus Logic	WM7121	704Kb / 12P	Top Port Analog Silicon Microphone
Cirrus Logic	WM7121PE	704Kb / 12P	Top Port Analog Silicon Microphone

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WM7121P bảng dữ liệu(PDF) 1 Page - Wolfson Microelectronics plc

WM7121P bảng dữ liệu(HTML) 1 Page - Wolfson Microelectronics plc

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