WM8971L Wolfson Microelectronics Ltd., WM8971L Datasheet - Page 61

• Manufacturer Part Number: WM8971L
• Description: Stereo Codec for Portable Audio Applications
• Manufacturer: Wolfson Microelectronics Ltd.

Production Data
Revision History
w
14/08/03
30/03/04
12/05/04
16/08/05
DATE
2.0
3.0
4.0
4.2
RELEASE
Initial Release
Pin Configuration – Pins 11, 24 and 26 renamed
Ordering Information – Peak Soldering Temp added and order codes changed
Pin Description – Pin Descriptions for 11, 24 and 26 changed
Speaker Output Power updated
Updated to Production Data
Block Diagram ROUT2 updated to show inverting buffer, buffer added to LD2MO
and RD2MO
Pin Diagram rotated
Pin Description, Ground padded note added
Recommended Operating Conditions, DBVDD to 1.7
Electrical Characteristics updated, Speaker Output
Speaker THD and Noise Versus Power added
Fig 3, Bit Clock Mode added
Control Interface Timing 3-wire mode test conditions table updated
Power on Reset added
Speaker Output THD Versus Power removed
PGA Control text updated
Automatic Level Control text updated
Note added to Noise Gate Control table
Output Mixers, mono mixer para added
Timing Diagrams, Figs, 17,18 and 19 updated LRP = 1 changed to LRP = 0
DSP diagrams updated, Figs 20, 21
Bit Clock added
Clock Output table and text updated
Updates to Table 38 Power Management
Register Map HPFLREN added to R27, R8, Bit 8 & 7 BCM[1:0] added
Group Delay added
Recommended External Component diagram updated to show component
values, ground paddle added
External component values table deleted
Ref updated in Package Drawing
Ordering information – leaded parts removed
Pin description - Changed pin 19 description
Electrical Characteristics – ADC THD max values removed
Updated Operation Mode table (Stereo Headphone playback, AINL/UR changed
from 1 to 0)
Package Drawing updated to DM030.E to include ground paddle info
DESCRIPTION OF CHANGES
PD Rev 4.1 August 2005
WM8971L
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