ADV7175AKSZ Analog Devices Inc, ADV7175AKSZ Datasheet - Page 38

• Manufacturer Part Number: ADV7175AKSZ
• Manufacturer: Analog Devices Inc

Specifications of ADV7175AKSZ

• Adc/dac Resolution: 10b
• Screening Level: Commercial
• Package Type: MQFP
• Pin Count: 44
• Lead Free Status / RoHS Status: Compliant

For external buffering of the ADV7175A/ADV7176A DAC outputs, the configuration in Figure 69 is recommended. This configu-
ration shows the DAC outputs running at half (18 mA) their full current (36 mA) capability. This will allow the ADV7175A/ADV7176A
to dissipate less power, the analog current is reduced by 50% with a R
3.3 volt operation as optimum performance is obtained from the DAC outputs at 18 mA with a V
adds extra isolation on the video outputs, see buffer circuit in Figure 70. When calculating absolute output full current and voltage,
use the following equation:
ADV7175A/ADV7176A
300
PIXEL
PORT
FILTER O/P
OPTIONAL
R
V
I
K = 4.2146 constant , V
SET
INPUT/
OUT
OUT
V
REF
DIGITAL
CORE
ADV7175A/ADV7176A
OPTIONAL DAC BUFFERING
=
V
= I
AA
(
V
OUT
REF
R
AD8051
SET
APPENDIX 7
× R
V
V
× K
CC–
CC+
LOAD
DAC A
DAC B
)
DAC C
DAC D
SET
of 300 Ω and a R
REF
= 1.235 V
OUTPUT TO
TV/MONITOR
OUTPUT
BUFFER
OUTPUT
BUFFER
OUTPUT
BUFFER
OUTPUT
BUFFER
LOAD
75
75
75
75
of 75 Ω. This mode is recommended for
AA
of 3.3 volts. This buffer also