Datasheet > WM8912CGEFL/V

WM8912CGEFL/V

更新时间： 2024-11-23 20:42:15

品牌	Logo	应用领域
凌云 - CIRRUS		商用集成电路
页数	文件大小	规格书
129页	1313K
描述
Consumer Circuit, CMOS, PQCC32, 4 X 4 MM, 0.75 MM HEIGHT, 0.40 MM PITCH, LEAD FREE, PLASTIC, QFN-32

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WM8912CGEFL/V 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
包装说明：	HVQCCN,	Reach Compliance Code：	compliant
HTS代码：	8542.39.00.01	风险等级：	5.82
其他特性：	IT ALSO REQUIRES ANALOG SUPPLY RANGE 1.71 TO 2 VOLT	商用集成电路类型：	CONSUMER CIRCUIT
JESD-30 代码：	S-PQCC-N32	长度：	4 mm
功能数量：	1	端子数量：	32
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：	HVQCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
座面最大高度：	0.8 mm	最大供电电压 (Vsup)：	1.98 V
最小供电电压 (Vsup)：	0.95 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	NO LEAD	端子节距：	0.4 mm
端子位置：	QUAD	宽度：	4 mm
Base Number Matches：	1

WM8912CGEFL/V 数据手册

WM8912

Ultra Low Power DAC with Headphone Driver

for Portable Audio Applications

DESCRIPTION

FEATURES



3.8mW quiescent power consumption for DAC to

headphone playback

The WM8912 is a high performance ultra-low power stereo

DAC optimised for portable audio applications.



DAC SNR 96dB typical, THD -86dB typical

Class W ground-referenced headphone driver

The device features stereo ground-referenced headphone

amplifiers using the Wolfson ‘Class-W’ amplifier techniques -

incorporating an innovative dual-mode charge pump

architecture - to optimise efficiency and power consumption

during playback. The ground-referenced outputs eliminate

headphone coupling capacitors. The outputs include

common mode feedback paths to reject ground noise.

28mW per channel into 30 at <1% THD

32mW per channel into 15 at <1% THD



Dynamic range controller

ReTune™ Mobile parametric equalizer

Control sequences for audio path setup can be pre-loaded

and executed by an integrated control write sequencer to

reduce software driver development and minimise pops and

clicks via Wolfson’s SilentSwitch™ technology.



Integrated control write sequencer for pop minimised start-

up and shutdown

Single register write for default start-up and shutdown

sequences

A dynamic range controller provides compression and level

control to support a wide range of portable recording

applications. Anti-clip and quick release features offer good

performance in the presence of loud impulsive noises.

ReTune^TMMobile 5-band parametric equaliser with fully

programmable coefficients is integrated for optimization of

speaker characteristics.



On-chip FLL provides all necessary clocks

DAC supports standard sample rates from 8kHz to 96kHz



32-pin QFN package (4x4mm, 0.4mm pitch)

Common audio sampling frequencies are supported from a

wide range of external clocks, either directly or generated

using the integrated FLL.

APPLICATIONS



Portable multimedia players

Multimedia handsets

Handheld gaming

The WM8912 can operate directly from a single 1.8V

switched supply. For optimal power consumption, the digital

core can be operated from a 1.0V supply.

WOLFSON MICROELECTRONICS plc

Production Data, February 2013, Rev 4.1

12 3 4 5 6 7...129

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与WM8912CGEFL/V相关器件

型号	品牌	获取价格	描述	数据表
WM8912GEFL/RV	WOLFSON	获取价格	Ultra Low Power DAC with Headphone Driver for Portable Audio Applications
WM8912GEFL/V	WOLFSON	获取价格	Ultra Low Power DAC with Headphone Driver for Portable Audio Applications
WM8918	CIRRUS	获取价格	Ultra Low Power DAC for Portable Audio Applications
WM8918CGEFL/V	CIRRUS	获取价格	Consumer Circuit, CMOS, PQCC32, 4 X 4 MM, 0.75 MM HEIGHT, 0.40 MM PITCH, LEAD FREE, PLASTI
WM8940	WOLFSON	获取价格	Mono CODEC with Speaker Driver
WM8940	CIRRUS	获取价格	Mono Codec with Speaker Driver
WM8940_07	WOLFSON	获取价格	Mono CODEC with Speaker Driver
WM8940_11	WOLFSON	获取价格	Mono CODEC with Speaker Driver
WM8940CGEFL/RV	WOLFSON	获取价格	Mono CODEC with Speaker Driver
WM8940CGEFL/V	WOLFSON	获取价格	Mono CODEC with Speaker Driver

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