adv7123-ep Analog Devices, Inc., adv7123-ep Datasheet - Page 9

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adv7123-ep

Manufacturer Part Number
adv7123-ep
Description
Cmos, 170 Mhz, Triple, 10-bit High Speed Video Dac Adv7123-ep
Manufacturer
Analog Devices, Inc.
Datasheet
Pin No.
37
38
EP
Mnemonic
R
PSAVE
Exposed Pad
SET
Description
A resistor (R
Note that the IRE relationships are maintained, regardless of the full-scale output current. For nominal video
levels into a doubly terminated 75 Ω load, R
The relationship between R
given by
The relationship between R
The equation for IOG is the same as that for IOR and IOB when SYNC is not being used, that is, SYNC is tied
permanently low.
Power Save Control Pin. Reduced power consumption is available on the ADV7123-EP when this pin is active.
The exposed paddle on the underside of the package must be soldered to the ground plane to increase the
reliability of the solder joints and to maximize the thermal capability of the package.
R
IOG (mA) = 11,445 × V
IOR, IOB (mA) = 7989.6 × V
SET
(Ω) = 11,445 × V
SET
) connected between this pin and GND controls the magnitude of the full-scale video signal.
REF
REF
SET
(V)/IOG (mA)
SET
(V)/R
and the full-scale output current on IOG (assuming I
and the full-scale output current on IOR, IOG, and IOB is given by
REF
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(V)/R
SET
(Ω) (SYNC being asserted)
SET
(Ω)
SET
= 530 Ω.
SYNC
is connected to IOG) is
ADV7123-EP

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