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WM8959 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 WM8959
기능 Mobile Multimedia DAC
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WM8959 데이터시트, 핀배열, 회로
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WM8959
Mobile Multimedia DAC with
Dual-Mode Class AB/D Speaker Driver
DESCRIPTION
FEATURES
The WM8959 is an ultra-low power hi-fi DAC designed for
multimedia handsets.
A powerful 1W speaker driver can operate in class D or AB
modes, providing total flexibility to the system designer. Low
leakage, high PSRR and pop/click suppression enable direct
battery connection for the speaker supply.
A flexible input configuration supports two microphone inputs
(single-ended or differential), a stereo line input, and a mono
differential line input.
Four headphone drivers support fully differential headset drive,
providing excellent crosstalk performance and bass response,
maximising stereo effects, and allowing the removal of large
and expensive headphone capacitors. The headphone outputs
can also be configured to drive an ear speaker. A fully
differential path to these outputs direct from the input pins is
available to maximise signal quality and minimise power
consumption.
Stereo 24-bit sigma-delta DACs provide hi-fi quality audio
playback, with a flexible digital audio interface supporting most
commonly-used clocking schemes. An integrated low power
PLL provides additional flexibility.
The WM8959 is supplied in very small and thin 42-ball WCSP
package, ideal for portable systems.
DAC SNR 99dB (‘A’ weighted), THD -84dB at 48kHz, 3.3V
Stereo microphone interface
1W Speaker driver
- 1W into 8BTL speaker at <0.1% THD
- 80dB PSRR @ 217Hz
- <1uA leakage with direct battery connection
- Software-selectable class D or AB mode
- Filterless connection supported
Headphone / ear speaker drivers
- 40mW output power into 16at 3.3V
- Fully differential and capless modes supported
- Low noise, lower power received voice path
Stereo or Mono differential line output
Pop/Click suppression
Powerful GPIO functions
Ultra-low power consumption
- 8.3mW analogue voice call
- 13.7mW DAC playback to headphones
On-chip PLL provides flexible clocking scheme
Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48kHz
42-ball WCSP package (3.226x3.44x0.7mm, 0.5mm pitch)
APPLICATIONS
Multimedia phones
GPS
WOLFSON MICROELECTRONICS plc
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Pre-Production, May 2008, Rev 3.1
Copyright ©2008 Wolfson Microelectronics plc




WM8959 pdf, 반도체, 판매, 대치품
WM8959
PIN CONFIGURATION
www.DataSheet4U.com
Pre-Production
ORDERING INFORMATION
ORDER CODE TEMPERATURE RANGE
PACKAGE
WM8959ECS/RV
Note:
Reel quantity = 3500
-40°C to +85°C
42-ball WCSP
(Pb-free, Tape and reel)
MOISTURE
SENSITIVITY LEVEL
MSL3
PEAK SOLDERING
TEMPERATURE
260°C
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PP, May 2008, Rev 3.1
4

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WM8959 전자부품, 판매, 대치품
www.DataSheet4U.com
Pre-Production
WM8959
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously
operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given
under Electrical Characteristics at the test conditions specified.
ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible
to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage
of this device.
Wolfson tests its package types according to IPC/JEDEC J-STD-020B for Moisture Sensitivity to determine acceptable storage
conditions prior to surface mount assembly. These levels are:
MSL1 = unlimited floor life at <30°C / 85% Relative Humidity. Not normally stored in moisture barrier bag.
MSL2 = out of bag storage for 1 year at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
MSL3 = out of bag storage for 168 hours at <30°C / 60% Relative Humidity. Supplied in moisture barrier bag.
The Moisture Sensitivity Level for each package type is specified in Ordering Information.
CONDITION
Supply voltages (excluding SPKVDD)
SPKVDD
Voltage range digital inputs
Voltage range analogue inputs
Operating temperature range, TA
Junction temperature, TJMAX
Storage temperature after soldering
MIN
-0.3V
-0.3V
DGND -0.3V
AGND -0.3V
-40ºC
-40ºC
-65ºC
MAX
+4.5V
+7V
DBVDD +0.3V
AVDD +0.3V
+85ºC
+150ºC
+150ºC
RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
MIN
TYP
MAX
UNIT
Digital supply range (Core)
DCVDD
1.71
3.6 V
Digital supply range (Buffer)
DBVDD
1.71
3.6 V
Analogue supplies range
AVDD, HPVDD
2.7
3.6 V
Speaker supply range
SPKVDD
2.7
5.5 V
Ground
DGND, AGND, HPGND,
SPKGND
0
V
Notes:
1. Analogue, digital and speaker grounds must always be within 0.3V of each other.
2. All digital and analogue supplies are completely independent from each other (i.e. not internally connected).
3. DCVDD must be less than or equal to AVDD.
4. DCVDD must be less than or equal to DBVDD.
5. AVDD must be less than or equal to SPKVDD.
6. SPKVDD must be high enough to support the peak output voltage when using DCGAIN and ACGAIN functions, to
avoid output waveform clipping. Peak output voltage is AVDD*(DCGAIN+ACGAIN)/2.
7. HPVDD must be equal to AVDD
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PP, May 2008, Rev 3.1
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