Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF HTML

SM5309B Datasheet(PDF) 11 Page - Nippon Precision Circuits Inc

Part No. SM5309B
Description  3-channel Video Buffer with Built-in wideband LPF
Download  24 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  NPC [Nippon Precision Circuits Inc]
Homepage  http://www.npc.co.jp/en
Logo 

SM5309B Datasheet(HTML) 11 Page - Nippon Precision Circuits Inc

Zoom Inzoom in Zoom Outzoom out
 11 / 24 page
background image
SM5309B
SEIKO NPC CORPORATION —11
FUNCTIONAL DESCRIPTION
I2C-BUS Control
The SM5309B uses an I2C BUS interface to set the following functions.
1) Cutoff frequency
2) Input multiplexer selection
3) fc mode switching (1/2 cutoff frequency switching)
4) Filter mode/filter bypass mode switching
5) Input type switching (sync-tip clamp, bias, direct)
6) Power-down function
The transfer rate of I2C-BUS corresponds to the fast-mode (up to 400kbit/s). Note that the SM5309B does not
support a read function (IC is write only).
Basic cycle
The basic access cycle comprises the following elements.
1) Start condition
2) 1st byte: Slave address
3) 2nd byte: Subaddress
4) 3rd byte: Control data
5) Stop condition
If the input data does not match the slave address or the subaddress is incorrect, the corresponding ACK
(acknowledge) bit is not output LOW. However, the ACK bit is output after 3rd byte irrespective of the byte
data. Also note that the IC does not support a subaddress auto-increment function, hence each subaddress
access requires all the basic cycle steps 1 to 5.
I2C-BUS start/stop condition
SDA
SCL
Start condition
Stop condition
SCL
1
SDA
Start
Stop
1st byte:Slave address
2nd byte:Subaddress
3rd byte:Control data
D7
D6
D1
D0
Low
ACK
D7
D6
D1
D0
ACK
D7
D6
D1
D0
ACK
27
8
9
1
2
7
8
9
1
2
7
8
9


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24 


Datasheet Download




Link URL




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

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   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