WM8351CGEB/RV WOLFSON [Wolfson Microelectronics plc], WM8351CGEB/RV Datasheet - Page 27

• Manufacturer Part Number: WM8351CGEB/RV
• Manufacturer: WOLFSON [Wolfson Microelectronics plc]

Production Data
9
9.1
w
TYPICAL PERFORMANCE DATA
AUDIO CODEC
Typical THD+N performance of the Headphone Drivers is shown below for 16 and 32 headphone
loads. These graphs are derived whilst using the WM8351 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 WM8351 LDO1
DCVDD = DBVDD = 1.8V, generated by WM8351 DC-DC1
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
(WM8351 - LDO1)
DCVDD=DBVDD=1.8V
(WM8351 - DCDC1)
AVDD=HPVDD=3.0V
(WM8351 - LDO1)
DCVDD=DBVDD=1.8V
(WM8351 - DCDC1)
25
30
30
35
PD, April 2012, Rev 4.5
WM8351
27