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SPRS457E
– MARCH 2009 – REVISED JUNE 2011
Table 2-5. Pin Descriptions (continued)
Name
BGA
Type
Group
Power
IPU
Reset
Description(4)
ID
(1)
Supply(2)
IPD(3)
State
VREF
D11
A I
Video
VDDA18_DAC
Video DAC: Reference voltage for DAC.
DAC
Video Buffer Electrical Data/Timing.
Note: If the DAC peripheral is not used, this pin must
be tied directly to VSS for proper device operation.
IREF
A11
A I/O
Video
VDDA18_DAC
Video DAC: Sets reference current for DAC. An
DAC
external resistor with nominal value, 2400 ohms, is
connected between IREF and VSS.
Video Buffer Electrical Data/Timing.
Note: If the DAC peripheral is not used, this pin must
be tied directly to VSS for proper device operation.
IDACOUT
B11
A I/O
Video
VDDA18_DAC
Video DAC: Current source input from DAC. An
DAC
external resistor with nominal value, 2100 ohms, is
connected between IDACOUT and VFB.
Video Buffer Electrical Data/Timing.
Note: If the DAC peripheral is not used at all in the
application, this pin can either be connected to VSS or
be left open.
VFB
B10
A I/O
Video
VDDA18_DAC
Video DAC: Amplifier feedback node. An external
DAC
resistor with nominal value, 2150 ohms, is connected
between VFB and TVOUT.
Video Buffer Electrical Data/Timing.
Note: If the DAC peripheral is not used at all in the
application, this pin can either be connected to VSS or
be left open.
TVOUT
A10
A I/O
Video
VDDA18_DAC
Video DAC: DAC1video output. An external resistor
DAC
with nominal value, 2150 ohms, is connected
between TVOUT and VFB. This is the output node
that drives the load (75 ohms).
Video Buffer Electrical Data/Timing.
Note: If the DAC peripheral is not used at all in the
application, this pin can either be connected to VSS or
be left open.
COMPY
B12
A O
Video
VDDA18_DAC
Video DAC: Analog video signal component output Y
DAC
Note: If the DAC peripheral is not used at all in the
application, this pin can either be connected to VSS or
be left open.
COMPPB
A12
A O
Video
VDDA18_DAC
Video DAC: Analog video signal component output
DAC
Pb
Note: If the DAC peripheral is not used at all in the
application, this pin can either be connected to VSS or
be left open.
COMPPR
C11
A O
Video
VDDA18_DAC
Video DAC: Analog video signal component output
DAC
Pr
Note: If the DAC peripheral is not used at all in the
application, this pin can either be connected to VSS or
be left open.
VDDA18_DAC
D10
PWR
Video
VDDA18_DAC
Video DAC: Analog 1.8-V power
DAC
Note: If the DAC peripheral is not used, this pin must
be tied directly to VSS for proper device operation.
VDDA12_DAC
E12
PWR
Video
VDDA12_DAC
Video DAC: Analog 1.2-V power
Dac
Note: If the DAC peripheral is not used, this pin must
be tied directly to VSS for proper device operation.
Copyright
2009–2011, Texas Instruments Incorporated
Device Overview
27