DM385, DM388
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SPRS821D –MARCH 2013–REVISED DECEMBER 2013
3.3.25 Video Output (Analog, TV)
Table 3-54. Video Output (Analog, TV) Terminal Functions
SIGNAL NAME [1]
DESCRIPTION [2]
TYPE [3]
AAR BALL [4]
HDDAC_A
HDDAC_B
HDDAC_C
Analog HD Video DAC (G/Y). This pin should be
connected to ground through a 165-ohm resistor.
O
A9
A8
B8
Analog HD Video DAC (B/Pb). This pin should be
connected to ground through a 165-ohm resistor.
O
O
O
Analog HD Video DAC (R/Pr). This pin should be
connected to ground through a 165-ohm resistor.
HDDAC_HSYNC
HDDAC_IREF
Analog HD Video DAC Discrete HSYNC Output
E9
B6
Video DAC reference current. When the video DACs are I/O
used, this pin should be connected to ground through a
2.67K-ohm resistor. When the video DACs are powered
down, this pin should be left unconnected.
HDDAC_VREF
Video DAC reference voltage. When the video DACs are
powered down, this pin should be left unconnected.
I
B7
HDDAC_VSYNC
TV_OUT0
Analog HD Video DAC Discrete VSYNC Output
O
O
D9
B9
Composite Amplifier Output. In Normal mode (internal
amplifier used), this pin drives the 75-Ohm TV load. An
external resistor (Rout) should be connected between
this pin and the TV_VFB0 pin and be placed as close to
the pins as possible. The nominal value of Rout is 2700
Ohm. In TVOUT Bypass mode (internal amplifier not
used), this pin is not used. When this pin is not used or
the TV output is powered-down, this pin should be left
unconnected.
TV_RSET
TV Input Reference Current Setting. An external resistor
(Rset) should be connected between this pin and
VSSA_VDAC to set the reference current of the video
DAC. The value of the resistor depends on the mode of
operation. In Normal mode (internal amplifier used), the
nominal value for Rset is 4700 Ohm. In TVOUT Bypass
mode (internal amplifier not used), the nominal value for
Rset is 10000 Ohm. When the TV output is not used, this
pin should be connected to ground (VSS).
A
B11
TV_VFB0
Composite Feedback. In Normal mode (internal amplifier
used), this pin acts as the buffer feedback node. An
external resistor (Rout) should be connected between
this pin and the TV_OUT0 pin. In TVOUT Bypass mode
(internal amplifier not used), this pin acts as the direct
Video DAC output and should be connected to ground
through a load resistor (Rload) and to an external video
amplifier. The nominal value of Rload is 1500 Ohm.
When this pin is not used or the TV output is powered-
down, this pin should be left unconnected.
O
B10
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Device Pins
101
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