TPS65951 Datasheet, PDF (30/170 Pages) Texas Instruments – Integrated Power Management/Audio Codec

TPS65951
SWCS053F – SEPTEMBER 2010 – REVISED MAY 2012
2.5 Ground Connection Usage
Ground connections for different blocks are listed in Table 2-4.
Table 2-4. Ground Connections
CATEGORY
BLOCK
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Audio
LDO
DC-DC
Audio Uplink (TX)
X
Audio Downlink (RX)
X
Audio HF PLL
X
Hands-Free (class-D), Left
X
Hands-Free (class-D), Right
X
VDAC
X
VPLL1
X
VPLL2
X
VMMC1
X
VMMC2
X
VAUX1
X
VAUX2
X
VAUX3
X
VAUX4
X
VINTDIG
X
VINTANA1
X
VINTANA2
X
USB (including USB LDOs)
X
GPADC
X
BCI
X
EEPROM
X
BBS (Backup Battery System)
X
Clock Slicer
X
VIO
X
VIO Dedicated Power Ground
X
VDD1
X
VDD1 Dedicated Power Ground
X
VDD2
X
VDD2 Dedicated Power Ground
X
Substrate Ground
X
Clean, extra low current, low
X
noise ground used for all
sensitive analog modules
(including band-gap voltage, 32-
kHz oscillator).
Digital audio filter and digital logic
X
(all DGND balls are merged)
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Terminal Description
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