wm8352 Wolfson Microelectronics plc, wm8352 Datasheet - Page 27
wm8352
Manufacturer Part Number
wm8352
Description
Wolfson Audioplus? Stereo Codec With Power Management
Manufacturer
Wolfson Microelectronics plc
Datasheet
1.WM8352.pdf
(335 pages)
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Quantity
Price
Part Number:
wm8352GEB
Manufacturer:
WOLFSON
Quantity:
20 000
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Production Data
9
9.1
w
TYPICAL PERFORMANCE DATA
AUDIO CODEC
Typical THD+N performance of the Headphone Drivers is shown below for 16Ω and 32Ω headphone
loads. These graphs are derived whilst using the WM8352 Power Management to generate the
power supply rails for the audio CODEC. The supply conditions are as follows:
THD+N Amplitude (dBV)
THD+N Amplitude (dBV)
-100
-100
-10
-20
-30
-40
-50
-60
-70
-80
-90
-10
-20
-30
-40
-50
-60
-70
-80
-90
0
0
0
0
AVDD = HPVDD = 3.0V, generated by WM8352 LDO1
DCVDD = DBVDD = 1.8V, generated by WM8352 DC-DC6
5
5
AC coupled headphone
AC coupled Headphone
10
10
(32 Ohm Load)
(16 Ohm Load)
Output Power (mW)
Output Power (mW)
15
15
20
20
25
AVDD=HPVDD=3.0V
(WM8352 - LDO1)
DCVDD=DBVDD=1.8V
(WM8352 - DCDC6)
AVDD=HPVDD=3.0V
(WM8352 - LDO1)
DCVDD=DBVDD=1.8V
(WM8352 - DCDC6)
25
30
35
30
PD, June 2009, Rev 4.1
WM8352
27
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