| 品牌：WINGSHING | 型号：WM8960 | 功率：30W |
| 电源电压：220V | 电源电流：22A | 针脚数：QFP32 |
w
WM8960
Stereo CODEC with 1W Stereo Class D Speaker Drivers and
Headphone Drivers for Portable Audio Applications
WOLFSON MICROELECTRONICS plc
To receive regular email updates, sign up at /enews/
Production Data, February 2009, Rev 4.0
Copyright 漏2009 Wolfson Microelectronics plc
CONTROLINTERFACE
SDIN
SCLKMICBIAS
DCVDDDBVDD
DGND
DAC
-73 to 6dB1dB steps, mute
HP_L
HP_R
ADCREF, DACREF
AVDD
AGND
VMID
50K
50K
DAC
DIGITAL AUDIOINTERFACE
A-law and u-law support
ADCDATADCLRC/GPIO1BCLKMCLK
DACDAT
DACLRC ADC
ADCPLL
LINPUT2
LINPUT1
LEFT MIXER
RIGHT MIXER
RINPUT1
ADCDIGITAL FILTERSALC
VOLUME
-17.25 to +30dB,0.75dB steps
INPUT PGAs
OUT3
LINPUT3/
JD2RINPUT3/
JD3
0, 13, 20, 29dB, mute
+
-vmid
+
-12 -> 6dB,3dB steps,mute
-17.25 to +30dB,0.75dB steps
0, 13, 20, 29dB, mute
+
-vmid
+
-12 -> 6dB,3dB steps,mute
RINPUT2SPK_LPSPK_LN
SPK_RP
SPK_RNSPKGND1SPKVDD1MONO MIXER
0 to -21dB, 3dB steps0 to -21dB, 3dB steps
0 to -21dB, 3dB steps0 to -21dB, 3dB steps
-73 to 6dB1dB steps, mute
0dB / -6dB
-73 to 6dB1dB steps, mute+BOOST
CLASS D
CLASS D
-73 to 6dB1dB steps, mute+BOOSTDACDIGITAL FILTERSDE-EMPHASIS3D ENHANCEVOLUME
-12 -> 6dB,3dB steps,mute
-12 -> 6dB,3dB steps,mute
Jack Detect
Jack Detect
GPIO1
SPKGND2
SPKVDD2W
WM8960
DESCRIPTION
The WM8960 is a low power, high quality stereo codec designed for portable digital audio applications.
Stereo class D speaker drivers provide 1W per channel into 8惟 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. 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. Advanced on-chip digital signal processing performs
automatic level control for the microphone or line input.
Stereo 24-bit sigma-delta ADCs and DACs are used with low
power over-sampling digital interpolation and decimation filters and a flexible digital audio interface.
The master clock can be input directly or generated internally by an onboard PLL, supporting most commonly-used clocking schemes. The WM8960 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 8惟 loads. Unused
functions can be disabled using software control to save power.
The WM8960 is supplied in a very small and thin 5x5mm QFN package, ideal for use in hand-held and portable systems.
FEATURES
鈥� DAC SNR 98dB (鈥楢鈥� weighted), THD -84dB at 48kHz, 3.3V
鈥� ADC SNR 94dB (鈥楢鈥� weighted), THD -82dB at 48kHz, 3.3V 鈥� Pop and click suppression
鈥� 3D Enhancement
鈥� Stereo Class D Speaker Driver 鈥� <0.1% THD with 1W per channel into 8惟 BTL speakers 鈥� 70dB PSRR @217Hz 鈥� 87% efficiency (1W output) 鈥� Flexible internal switching clock
鈥� On-chip Headphone Driver
鈥� 40mW output power into 16惟 at 3.3V
鈥� Capless mode support
鈥� THD -75dB at 20mW, SNR 90dB with 16惟 load
鈥� Microphone Interface
鈥� Pseudo differential for high noise immunity
鈥� Integrated low noise MICBIAS
鈥� Programmable ALC / Limiter & Noise Gate 鈥� Low
Power Consumption 鈥� Low Supply Voltages 鈥� Analogue 2.7V to 3.6V (Speaker supply up to 5.5V)
鈥� Digital core and I/O: 1.71V to 3.6V
鈥� On-chip PLL provides flexible clocking scheme 鈥� Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48
鈥� 5x5x0.9mm
QFN package APPLICATIONS 鈥� Games consoles
鈥� Portable media / DVD players
鈥� Mobile
multimedia
