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WM8956CGEFL/RV

更新时间： 2024-09-17 11:59:19
品牌 Logo 应用领域
欧胜 - WOLFSON 驱动器
页数 文件大小 规格书
80页 1099K
描述
Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and Headphone Drivers

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中文翻译

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WM8956CGEFL/RV 技术参数

生命周期：Transferred包装说明：5 X 5 MM, 0.90 MM HEIGHT, 0.50 MM PITCH, LEAD FREE, PLASTIC, MO-220VHHD-2, QFN-32
Reach Compliance Code：unknown风险等级：5.61
商用集成电路类型：CONSUMER CIRCUITJESD-30 代码：S-PQCC-N32
长度：5 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：1 mm
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：1.71 V
表面贴装：YES技术：CMOS
温度等级：INDUSTRIAL端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
宽度：5 mmBase Number Matches：1

WM8956CGEFL/RV 数据手册

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WM8956  
w
Hi-Fi DAC with 1W Stereo Class D Speaker Drivers and  
Headphone Drivers  
DESCRIPTION  
FEATURES  
DAC SNR 99dB (‘A’ weighted), THD -87dB at 48kHz, 3.3V  
Pop and click suppression  
3D Enhancement  
The WM8956 is a low power, high quality stereo DAC designed  
for portable multimedia applications.  
Stereo class D speaker drivers provide 1W per channel into 8  
loads with a 5V supply. Low leakage, excellent PSRR and  
pop/click suppression mechanisms also allow direct battery  
connection to the speaker supply. Flexible speaker boost  
settings allow speaker output power to be maximised while  
minimising other analogue supply currents.  
Stereo Class D Speaker Driver  
-
-
-
-
<0.1% THD with 1W per channel into 8BTL speakers  
70dB PSRR @217Hz  
87% efficiency (1W output)  
Flexible internal switching clock  
On-chip Headphone Driver  
-
-
-
40mW output power into 16at 3.3V  
Capless mode support  
THD+N -70dB at 20mW, SNR 99dB with 16load  
A highly flexible input configuration for up to three stereo  
sources is integrated, with a complete microphone interface.  
External component requirements are drastically reduced as no  
separate microphone, speaker or headphone amplifiers are  
required.  
Microphone Interface  
-
-
Pseudo differential for high noise immunity  
Integrated low noise MICBIAS  
Stereo 24-bit sigma-delta DACs are used with low power over-  
sampling digital interpolation filters and a flexible digital audio  
interface.  
Low Power Consumption  
16mW headphone playback (2.7V / 1.8V supplies)  
Low Supply Voltages  
-
-
-
Analogue 2.7V to 3.6V (Speaker supply up to 5.5V)  
Digital core and I/O: 1.71V to 3.6V  
The master clock can be input directly or generated internally by  
an onboard PLL, supporting most commonly-used clocking  
schemes.  
On-chip PLL provides flexible clocking scheme  
Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48  
5x5x0.9mm QFN package  
The WM8956 operates at analogue supply voltages down to  
2.7V, although the digital supplies can operate at voltages down  
to 1.71V to save power. The speaker supply can operate at up  
to 5.5V, providing 1W per channel into 8loads. Unused  
functions can be disabled using software control to save power.  
APPLICATIONS  
Mobile multimedia  
Portable media / DVD players  
Games consoles  
The WM8956 is supplied in a very small and thin 5x5mm QFN  
package, ideal for use in hand-held and portable systems.  
DGND  
DCVDD  
DBVDD  
SPKVDD1  
SPKVDD2  
0 to -21dB,  
3dB steps  
Jack Detect  
LINPUT3/  
JD2  
CLASS D  
SPK_LP  
0
to -21dB,  
3dB steps  
SPK_LN  
LINPUT2  
-73 to 6dB  
1dB steps,  
mute  
-12 -> 6dB,  
3dB steps,  
mute  
LEFT  
MIXER  
+BOOST  
-12 -> 6dB,  
3dB steps,  
mute  
-17.25 to +30dB,  
0.75dB steps  
+
-
HP_L  
DAC  
+
vmid  
vmid  
-73 to 6dB  
1dB steps,  
mute  
DAC DIGITAL FILTERS  
DE-EMPHASIS  
3D ENHANCE  
VOLUME  
0, 13, 20, 29dB, mute  
LINPUT1  
RINPUT1  
W
INPUT  
PGAs  
MONO  
MIXER  
OUT3  
HP_R  
WM8956  
0dB / -6dB  
0, 13, 20, 29dB, mute  
-
+
DAC  
+
-12 -> 6dB,  
3dB steps,  
mute  
-17.25 to +30dB,  
0.75dB steps  
RIGHT  
MIXER  
-73 to 6dB  
1dB steps,  
mute  
-12 -> 6dB,  
3dB steps,  
mute  
RINPUT2  
CLASS D  
0
to -21dB,  
SPK_RN  
SPK_RP  
3dB steps  
0
to -21dB,  
3dB steps  
RINPUT3/  
JD3  
-73 to 6dB  
1dB steps,  
mute  
Jack Detect  
+BOOST  
GPIO1  
SPKGND1  
SPKGND2  
DACREF  
MICBIAS  
DIGITAL AUDIO  
CONTROL  
INTERFACE  
PLL  
INTERFACE  
50K  
50K  
A-law and u-law support  
Producton Data, November 2011, Rev 4.1  
WOLFSON MICROELECTRONICS plc  
To receive regular email updates, sign up at http//www.wolfsonmicro.com/enes  
Copyrih2011 Wolfson Microelectronics plc  
1234567...80

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