WM8351GEB/V Wolfson Microelectronics, WM8351GEB/V Datasheet - Page 27

• Manufacturer Part Number: WM8351GEB/V
• Description: Audio CODECs Audio CODEC plus pwr management
• Manufacturer: Wolfson Microelectronics

Specifications of WM8351GEB/V

• Number Of Adc Inputs: 2
• Number Of Dac Outputs: 2
• Conversion Rate: 48 KSPS
• Interface Type: Serial (2-Wire, 3-Wire, 4-Wire)
• Resolution: 12 bit
• Operating Supply Voltage: 3.7 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: BGA
• Minimum Operating Temperature: - 25 C
• Number Of Channels: 2 ADC/2 DAC
• Supply Current: 260 uA
• Thd Plus Noise: - 83 dB
• Audio Codec Type: Stereo
• No. Of Adcs: 2
• No. Of Dacs: 2
• No. Of Input Channels: 8
• No. Of Output Channels: 6
• Adc / Dac Resolution: 24bit
• Adcs / Dacs Signal To Noise Ratio: 95dB
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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 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, March 2010, Rev 4.2
WM8351
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