DataSheet.jp

ADV477 の電気的特性と機能

ADV477のメーカーはAnalog Devicesです、この部品の機能は「Power-Down Color Palette RAM-DAC」です。


製品の詳細 ( Datasheet PDF )

部品番号 ADV477
部品説明 Power-Down Color Palette RAM-DAC
メーカ Analog Devices
ロゴ Analog Devices ロゴ 




このページの下部にプレビューとADV477ダウンロード(pdfファイル)リンクがあります。
Total 3 pages

No Preview Available !

ADV477 Datasheet, ADV477 PDF,ピン配置, 機能
,. ANALOG
LIllIDEVICES
CMOS8,0 MHzMonolithi2c56Word
Power-DowCnolorPaletteRAM-DACs
I ADV4111ADV41I 5
FEATURES
FUNCTIONAL BLOCK DIAGRAM
Persona' System/Z- and VGA- Compatible
80, 88, 50 and 35 MHz PipelinedOp8rltion
ADV4781ADV.71(ADV8)Pin end Functional
Compatible
Power.oown Mode
On-808rdVoltage Reference
AntIlPlrldl Circuit
Anllog Output Comp8mors
ADV4T7:
OTriple 8-8it D/A Converters
211 )C 24 ColorPalette RAM
B15 )( 24Ovlriay Regllt8r8
ADV476:
STriple I-Bit D/A Convlrtlra
O2S8 )( 18 Color p.l8tte RAM
15 )C18 OvertlY Registers
LRS-M3AIRS-170 Compatible Outputs
Sync on In Th Channel.
EProgrammlble Pedl8t8l
T+5 V CMOSMonolithic ConltrUction
E44-Pin PLCCPeckage
ClOCK
1'0
",
'yll(;
iWiic
OLD
au
OPA
COfIIt
I0Il
100
108
OND
DD Of iiD iii NO 1111RIZ
IIOTE: - NAMEII II PAJlENTMiSES DElIO,. ADV477
APPUCA TlONS
High Rl8Olution Color Grephics
CAE/CAD/CAMAppIicationa
Image Pwoc8s8ing
Instrument81lon
LaptOp Comput8f8
De8ktop Publishing
AVAILABLEa.OCK RAtiS
80 MHz
88 MHz
50 MHz
3SMHz
The ADV477 has a 256 x 24 color lookup table with triple I-bit
video D/A converters. The ADV475 bas a 256 x 18 color
lookup table with triple 6-bit video D/A converters. New fca-
tUres on the ADV4771ADV47S include an on-board 1.2 V volt-
IF reference, ana1oBoutput comparators for self diaposUcs and
debugiDg as well as a power-down or sleep mode.
The power-down mode allows the ADV477/ADV475 to be put
into a sleep mode with sipificant reduction in power consump-
tion. This is ideal for laptop computers that may occasionally
require the optional ability to drive an analog RGB monitor,
but whose design is dictated by a desire to minimize power
consumption.
G£NDAL DESCIUPTION
The ADV477 and ADV47S are pin-, functional-, and software-
compatible RAM-DACa desiped specifically for Penonal Sys-
tem/2 (PS/2) compatible color paphics. They are I cIircct pluS-
in uppade for the ADV478 and ADV471. Both suppon the
existiq 6-bit color VGA standard while also allowing for an
upgrade path to I-bit color resolution.
mv II. tndeGuIIof AuJos Dmce.. 18c.
*r-at SJll8ml2,PSf2,VGAIUIIXI GA8ft!tndaaub of IBtemadoaal
a.u- MKUitsCorp.
Options on both parts include a programmable pedestal (0 or
7.S IRE) and use of an external voltagc or tunent reference.
15 overlay registers provide for overlaying cursors, grids,
menus, EGA emulation, etco, at the hardware level. Also sup-
ported is a pixd read mask register and the ability to encode
sync information on all three chanDels.
Thc ADV477/ADV475 generates RS343A compatiblc vidco sig-
nals into a doubly terminated 7S {} load, and RS-170 compatible
video signals into a singly terminated 75 {} load, without requir-
ing extemal buffering.
This information applies to I product under development. Its characteristics and specifications are subject to change without notice.
Analog Devices assumes no obligation regarding future manufac:ture unleN otherwise agreed to in writing.
REV. 0
Information fvrnilhed by Analog Delli", il beliel/ed to be ,"urate and
reliable. Ho_ef. no relponsibility is assumed by Analog Del/ices for its
UN. nor for any infringements of pltents or oth.r rights of third plni..
which mlY resuh from its use. No licens. is granted by implicltion or
otherwise under any patent or patent rights of Analog Del/ices.
OM T8OII1IOIotv Way. P.O. 80.8101. Norwood. MA 020IZ-"0I. U.S.A.
Tel: 1111329-4700 F..: 117/321-8703 Twx: 7'0/""77
Telex:12448'
Cable:ANALOGNOIllWOOOMAU

1 Page





ADV477 pdf, ピン配列
ANALOGDEVlCE5 fAX-ON-DEMANDHOTLINE - Page ~
-----
ADV4111ADV415
' riM!TIMINGCHARACTERISTIC1Sm
Ii 5V;snupIi .J1ImIi V,.:'au ;;
:= 147O. AMspeclflcatiDIIs'. to ,.3,
1.235V;RLIi 31.50, CLIi
unlessotherwisenoted.)
10pF:
Parameter
80 MHz
Venion
66 MHz
Version
50 MHz
VersioD
3SMHz
Version
Units
Conditions/Comments
r.....
80
66
SO 35
MHz
ClockRate
tl
10
10
10
10
DSmin
RSO-RS2Setup Time
tz
10
10
10
10
DSmin
RSO-RS2Hold Time
tj4
S
S
5
5
DSmin
RD Assertedto Data Bus DriVC'll
t:
40
40
40
40
us max
RDAsscned to Data Valid
"s5
20
20
20
20
USmax
RD Negatedto Data Bus 3-Stated
s
5
5
5
5
DSmin
Read Data Hold Time
t7
10
10
10
10
nsmin
Write Data SetUpTime
t,
10
10
10
10
DSmin
Write Data Hold Time
OIt
SO
SO
SO SO
us min
RD, WR Pulse Width Low
tlo
6 x t1)
6 x tl)
6 x tl)
6 x tl)
namin
RD. WR Pul8cWidth HiP
Btll
3
3
3
3
us min
Pixel and CoDtrolSetUpTime
tn
3
3
3
3
usmin
Pixeland ControlHold Time
Stl)
12.5
15.15
20
28
ns min
ClockCycleTime
OIi.
4
5
6
7
uSmin
ClockPulse Width High Time
tiS
4
5
6
9
DSmin
Clock PulseWidth Low Time
Ltll
30
30
30
30
us m.u
AnalogOutpUtDelay
Etl7
3
3
3
3
DStYP
AnaloaOutput RisclFallTime
tl.6
13
13
20
28
us DIU
ADalOlJOutput Set:tliDBTime
TEt19
1
I
1
1
JIostyp
SENSEOutput Delay
tSIt
2
2
2
2
DSmu
Analog Output Skew
tm
4 X tl)
4 x tn
4 x tu
4 x In
DSmiD
Pipeline Delay
NOTES
1'J7L input Y81uaare 0 to 3 volts, with input rilCl'falltima s 3 RI, I1IC8StII'abIetween the I~ Ind 90% points. Timilll reference points It ~ for inputs and
OUtpUll.AIIIIoa OIltpVtIOICI$ 10 pP, DO-D7 outpUt lOICIs 50 pp. See timin&DOICiIn Fiprc 21.
z:t5" for 10 MHz and 66 MHz pua; ~ I~ for 50 MHz aDd 35 MHz puu.
'TCIIIpCtIftZftRIlIF (T- 10T awJ: O'C to + 7O'C.
~J aDd ~ 1ft --.4
widI die Ia8d cim1it at Fiprt ) 8Dd 1ft defiui u the time NquiNd for ID outpUt to - 0.4 Vor 2.4 V.
It,8Ddf.s1ftdaiwdrn. die--
tia8-- ~ die dMa CIIIIpUIlIO clwIp ~ O.SV -- bded with the c:in:uit m r,pn: 3. The _ural. number is
the aIr8pCII8IIdIIII:k10- die I8DcI8of dIIrJiaI die 50pF CllplCitar1.bis - that the lima, t, 8Ddr.. quotedill the timin&charactcrittic8arethe
mzeVIIua 6Ir die dmce IIId. tIIIdi1ft ~t
of _emal buaIo8diJICI lplCillDCel.
"SmJi-na .. -
clacakaddaIfaadthrolllh.
SpecifOtiGat .m;.:t 1D..
...- ~-,,~-e.t
iii.iii
-III-'"
IIID. r
(WIllI)
without 1IIItigc.
ANAlDO
OUTI'UTS
1I0Il,100, IO8J
iiiiii
x=
~~mmY
Figure 2b. Video Output vs. SENSE Timing
I
CL-
DIGITAl.IIIIIVI1I
I"S'~'II~e-:.'-1
AlW.OOOlJl1llml
--1I0Il.lOG,ICI8J
- ~"1-"'T
I. OUTPUTDfIJo'fIlEA8URlDI'IIOIITHE_POINTOF'nII_IDGfOFCI.OtKTO
THI
... POINTOF FUu.4CALE TIWf8IT\ON.
I. ~,.
_II FIIOIITHE_1'O8If OFFUu.«ALE 1'IIANIITIOTHO'nI.
OUTPUT11111- - 01 U8 fAll'i.T'I'A) N:tG.It!ao (AllVtTSI.
:I. 0U1PUT1118E1FA-U. ..-0
--
ntI"", AHO_1'OIN'nI 01'PULL-ICALI
- Figure2a. VideoInput/OutputTiming
TO
0I1TPUT
PIN
+2.1V
FigurB3. Load Circuit for Bus Access lInd Relinquish Time
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Analog Device. aseumes no obligation regarding future manufacture unless otherwise agreed to in writing.
REV.0
-3-


3Pages





ページ 合計 : 3 ページ
 
PDF
ダウンロード
[ ADV477 データシート.PDF ]


データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。


共有リンク

Link :


部品番号部品説明メーカ
ADV471

CMOS 80 MHz Monolithic 256 x 24(18) Color Palette RAM-DACs

Analog Devices
Analog Devices
ADV473

CMOS 135 MHz True-Color Graphics Triple 8-Bit Video RAM-DAC

Analog Devices
Analog Devices
ADV475

Power-Down Color Palette RAM-DAC

Analog Devices
Analog Devices
ADV476

CMOS Monolithic 256x18 Color Palette RAM-DAC

Analog Devices
Analog Devices


www.DataSheet.jp    |   2020   |  メール    |   最新    |   Sitemap