Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

ADV7128 Datasheet(PDF) 7 Page - Analog Devices

Part # ADV7128
Description  CMOS 80 MHz, 10-Bit Video DAC
Download  8 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADV7128 Datasheet(HTML) 7 Page - Analog Devices

  ADV7128_15 Datasheet HTML 1Page - Analog Devices ADV7128_15 Datasheet HTML 2Page - Analog Devices ADV7128_15 Datasheet HTML 3Page - Analog Devices ADV7128_15 Datasheet HTML 4Page - Analog Devices ADV7128_15 Datasheet HTML 5Page - Analog Devices ADV7128_15 Datasheet HTML 6Page - Analog Devices ADV7128_15 Datasheet HTML 7Page - Analog Devices ADV7128_15 Datasheet HTML 8Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 7 / 8 page
background image
ADV7128
REV. 0
–7–
DAC
Z
O
= 75
(CABLE)
Z
S
= 75
(SOURCE
TERMINATION)
AD848
+V
S
0.1
µF
0.1
µF
I
OUT
75
2
7
6
4
3
Z
2
Z
L
= 75
(MONITOR)
GAIN (G) = 1+
–V
S
Z
1
Z
1
Z
2
Figure 6. AD848 As an Output Buffer
PC Board Layout Considerations
The ADV7128 is optimally designed for lowest noise perfor-
mance, both radiated and conducted noise. To complement the
excellent noise performance of the ADV7128 it is imperative
that great care be given to the PC board layout. Figure 7 shows
a recommended connection diagram for the ADV7128.
The layout should be optimized for lowest noise on the
ADV7128 power and ground lines. This can be achieved by
shielding the digital inputs and providing good decoupling. The
lead length between groups of VAA and GND pins should be
minimized so as to minimize inductive ringing.
Ground Planes
The ADV7128 and associated analog circuitry, should have a
separate ground plane referred to as the analog ground plane.
This ground plane should connect to the regular PCB ground
plane at a single point through a ferrite bead, as illustrated in
Figure 7. This bead should be located as close as possible
(within 3 inches) to the ADV7128.
The analog ground plane should encompass all ADV7128
ground pins, voltage reference circuitry, power supply bypass
circuitry, the analog output traces and any output amplifiers.
The regular PCB ground plane area should encompass all the
digital signal traces, excluding the ground pins, leading up to
the ADV7128.
Power Planes
The PC board layout should have two distinct power planes,
one for analog circuitry and one for digital circuitry. The analog
power plane should encompass the ADV7128 (VAA) and all as-
sociated analog circuitry. This power plane should be connected
to the regular PCB power plane (VCC) at a single point through
a ferrite bead, as illustrated in Figure 7. This bead should be lo-
cated within three inches of the ADV7128.
The PCB power plane should provide power to all digital logic
on the PC board, and the analog power plane should provide
power to all ADV7128 power pins, voltage reference circuitry
and any output amplifiers.
The PCB power and ground planes should not overlay portions
of the analog power plane. Keeping the PCB power and ground
planes from overlaying the analog power plane will contribute to
a reduction in plane-to-plane noise coupling.
Supply Decoupling
Noise on the analog power plane can be further reduced by the
use of multiple decoupling capacitors. (See Figure 7.)
Optimum performance is achieved by the use of 0.1
µF ceramic
capacitors. Each of the two groups of VAA should be individually
decoupled to ground. This should be done by placing the ca-
pacitors as close as possible to the device with the capacitor
leads as short as possible, thus minimizing lead inductance.
GND
RSET
I
OUT
GROUND
ADV7128
C3
0.1
µF
C5
0.1
µF
Z1
(AD589)
R1
75
C1
33
µF
C2
10
µF
COMP
C6
0.1
µF
ANALOG POWER PLANE
V
AA
V
REF
L2 (FERRITE BEAD)
D0
D9
CLOCK
VIDEO
OUTPUT
VIDEO
DATA
INPUTS
ANALOG GROUND PLANE
C4
0.1
µF
RSET
560
L1 (FERRITE BEAD)
CC
+5V (V
)
VENDOR PART NUMBER
FAIR-RITE 274300111 OR
MURATA BL01/02/03
DALE CMF-55C
DALE CMF-55C
ANALOG DEVICES AD589JH
COMPONENT
C1
C2
C3, C4, C5,C6
L1, L2
R1
R
SET
Z1
DESCRIPTION
33
µF TANTALUM CAPACITOR
10
µF TANTALUM
0.1
µF CERAMIC CAPACITOR
FERRITE BEAD
75
Ω 1% METAL FILM RESISTOR
560
Ω 1% METAL FILM RESISTOR
1.235V VOLTAGE REFERENCE
Figure 7. ADV7128 Typical Connection Diagram and Component List


Similar Part No. - ADV7128_15

ManufacturerPart #DatasheetDescription
Analog Devices
Analog Devices
ADV7128KR30 AD-ADV7128KR30 Datasheet
135Kb / 8P
   CMOS 80 MHz, 10-Bit Video DAC
REV. 0
ADV7128KR50 AD-ADV7128KR50 Datasheet
135Kb / 8P
   CMOS 80 MHz, 10-Bit Video DAC
REV. 0
ADV7128KR80 AD-ADV7128KR80 Datasheet
135Kb / 8P
   CMOS 80 MHz, 10-Bit Video DAC
REV. 0
More results

Similar Description - ADV7128_15

ManufacturerPart #DatasheetDescription
Analog Devices
Analog Devices
ADV7128 AD-ADV7128 Datasheet
135Kb / 8P
   CMOS 80 MHz, 10-Bit Video DAC
REV. 0
ADV7120 AD-ADV7120_15 Datasheet
191Kb / 12P
   CMOS 80 MHz, Triple 8-Bit Video DAC
ADV101 AD-ADV101 Datasheet
187Kb / 12P
   CMOS 80 MHz, Triple 8-Bit Video DAC
REV. B
ADV101 AD-ADV101_15 Datasheet
161Kb / 12P
   CMOS 80 MHz, Triple 8-Bit Video DAC
REV. B
ADV7120KSTZ50 AD-ADV7120KSTZ50 Datasheet
191Kb / 12P
   CMOS 80 MHz, Triple 8-Bit Video DAC
REV. B
ADV7120 AD-ADV7120 Datasheet
188Kb / 12P
   CMOS 80 MHz, Triple 8-Bit Video DAC
REV. B
ADV7120KSTZ30 AD-ADV7120KSTZ30 Datasheet
191Kb / 12P
   CMOS 80 MHz, Triple 8-Bit Video DAC
REV. B
Cadeka Microcircuits LLC.
Cadeka Microcircuits LL...
SPT5220 CADEKA-SPT5220 Datasheet
3Mb / 8P
   10-BIT, 80 MWPS VIDEO DAC
Analog Devices
Analog Devices
ADV7121 AD-ADV7121 Datasheet
196Kb / 12P
   CMOS 80 MHz, Triple 10-Bit Video DACs
REV. B
ADV7122 AD-ADV7122_15 Datasheet
200Kb / 12P
   CMOS 80 MHz, Triple 10-Bit Video DACs
More results


Html Pages

1  2  3  4  5  6  7  8 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com  |   allmanual.com