WM8986GECO/V Wolfson Microelectronics, WM8986GECO/V Datasheet - Page 49

• Manufacturer Part Number: WM8986GECO/V
• Description: Audio Amplifiers Class D Headphone DAC + Line Out
• Manufacturer: Wolfson Microelectronics

Specifications of WM8986GECO/V

• Product: Class-D
• Output Power: 40 mW
• Thd Plus Noise: - 86 dB
• Operating Supply Voltage: 1.71 V to 3.6 V, 2.5 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 16 Ohms
• Minimum Operating Temperature: - 40 C
• Output Signal Type: Differential
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.71 V, 2.5 V
• Output Type: Differential
• Package / Case: QFN-28
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Production Data
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Table 30 Disabled Outputs to VREF Resistance
A dedicated buffer is available for biasing unused analogue I/O pins as shown in Figure 26. This
buffer can be enabled using the BUFIOEN register bit.
Figure 26 summarises the bias options for the output pins.
Figure 26 Unused Input/Output Pin Tie-off Buffers
Table 31 Unused Output Pin Bias Options
R49 (31h)
L/ROUT2EN/
REGISTER
ADDRESS
OUT3/4EN
0
0
1
0
BIT
VROI
X
0
1
VROI
LABEL
1kΩ to AVDD1/2
30kΩ to AVDD1/2
Output enabled (DC level=AVDD1/2)
0
OUTPUT CONFIGURATION
DEFAULT
VREF (AVDD1/2) to analogue output
resistance
0 = approx 1kΩ
1 = approx 30 kΩ
DESCRIPTION
PD, Rev 4.1, June 2009
WM8986
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