Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
wolfson
User Rank
Author
re: Selecting audio amplifiers for mobile devices
wolfson   10/12/2011 8:31:59 AM
NO RATINGS
Wolfson's Class-G amplifiers switch the supply rail voltage to the amplifier by using a dual-mode charge-pump with variable frequency. This decreases power consumption and increases efficiency. Wolfson's Class-W technology takes this a stage further, and is used in their CODECs, where a digital signal path is present. It includes control logic with predictive signal processing and adaptive dual-mode charge pump. This further reduces power consumption. It also improves audio quality because signal peaks are not clipped and does not introduce extra delays.

old account Frank Eory
User Rank
Author
re: Selecting audio amplifiers for mobile devices
old account Frank Eory   9/21/2011 8:30:54 PM
NO RATINGS
Nice description of some of Wolfson's audio features. Question for the author: Can you please explain what Wolfson means by "Class W" and how this differs from Class G?



Radio
NEXT UPCOMING BROADCAST
In conjunction with unveiling of EE Times’ Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. One of Silicon Valley's great contributions to the world has been the demonstration of how the application of entrepreneurship and venture capital to electronics and semiconductor hardware can create wealth with developments in semiconductors, displays, design automation, MEMS and across the breadth of hardware developments. But in recent years concerns have been raised that traditional venture capital has turned its back on hardware-related startups in favor of software and Internet applications and services. Panelists from incubators join Peter Clarke in debate.
Most Recent Comments
Flash Poll
Top Comments of the Week
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Special Video Section
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...
General-purpose DACs have applications in instrumentation, ...
Linear Technology demonstrates its latest measurement ...
10:29
Demos from Maxim Integrated at Electronica 2014 show ...
Bosch CEO Stefan Finkbeiner shows off latest combo and ...
STMicroelectronics demoed this simple gesture control ...
Keysight shows you what signals lurk in real-time at 510MHz ...