DA7212 Datasheet, PDF (126/129 Pages) Dialog Semiconductor – Ultra-low power stereo codec

DA7212
Ultra-low power stereo codec
Company confidential
B.7 References
Table 47: References
Pin name
DACREF
VMID
VREF
Bump/pin
A7
A9
B8
Power domain
VDD_A
VDD_A
VDD_A
Description
Audio DAC reference capacitor
Audio mid-rail reference capacitor
Bandgap reference capacitor
Type
Reference
Reference
Reference
A 1 µF capacitor should be connected between each of the references and GND_A. For best
performance the capacitors should be fitted as near to the device as possible.
DACREF ^A7
1µF
MIVCMBIADS ^MA191
1µF
VREF
B8
1µF
Figure 41: Reference capacitors
B.8 Supplies
Table 48: Power supplies
Pin name
Bump/pin
VDD_A
B6
VDD_IO
D10
VDD_SP
A11
VDD_MIC
B14
VDIG
D12
Power domain
Min: 1.7 V
Max: 2.5 V
Min: 1.6 V
Max: 3.6 V
Min: 0.95 V
Max: 5.25 V
Min: 1.8 V
Max: 3.6 V
Description
Type
Supply for analogue circuits /
Supply for headphone charge pump
Power Supply
Supply for digital interfaces
Power Supply
Supply for speaker driver
Power Supply
Supply for microphone bias circuits Power Supply
Output of internal regulator.
Power Supply
Decoupling capacitors are recommended between all supplies and GND_A. These capacitors should
be located as near to the device as possible.
VDD_A ^B6
1µF
VDD_IO ^D10
1µF
VDD_SP ^A11
1µF
MVDICDB_IMASIC ^MB1114
1µF
VDIG
D12
1µF
1.7 V - 2.5 V
1.6 V - 3.6 V
0.95 V - 5.25 V
1.8 V - 3.6 V
Figure 42: Power supply decoupling
Datasheet
Revision 3c
126 of 129
24-Nov-2015
© 2015 Dialog Semiconductor