поискавой системы для электроныых деталей
Selected language     Russian  ▼
название детали
         подробно


WS7808QM датащит (Datasheet) 7 Page - Will Semiconductor Ltd.

№ деталь WS7808QM
подробность  0.1GHz–3GHz SP8TDiversityAntenna Switch with MIPI RFFE Interface
скачать  12 Pages
Scroll/Zoom Zoom In 100% Zoom Out
производитель  WILLSEMI [Will Semiconductor Ltd.]
домашняя страница  http://www.willsemi.com/index.php?siteid=2
Logo 

 7 page
background image
WS7808QM
Will Semiconductor Ltd.
Mar, 2018_V1.4
Power ON and OFF sequence
It is very important that the user adheres to the correct power-on/off sequence in order to avoid damaging the
device (Note 2).
Power ON
1) Apply voltage supply - VDD
2) Wait 100μs or greater and then apply logic supply - VIO
3) Wait 10μs or greater and then apply RFFE
4) Wait 5μs or greater after RFFE Trigger falling edge and then apply the RF Signal
Power OFF
1) Remove the RF Signal
2) Remove RFFE
3) Remove logic supply - VIO
4) Remove voltage supply - VDD
VDD
VDD
ON
VIO
ON
≥100us
VIO
Slave State
SDATA,SCLK
RF Signal
Shut Down
Start Up
Active
Shut Down
≥10us
REF
TRIGGER
RF
ON
VDD
OFF
RF
OFF
≥5us
≥100us
VIO
OFF
Note 2: VIO can be applied to the device after VDD or removed before VDD .
It is important to wait 10μs after VIO & VDD are applied
before sending SDATA to ensure correction data transmission. The minimum time between a power up and power down sequence (and
vice versa) is ≥ 100us.
Command Sequence Bit Definitions
Type
SSC
C11-C8
C7
C6-C5
C4
C3-C0
Parity
Bits
BPC
Extended Operation
DA7(1)-
DA0(1)
Parity
Bits
BPC
DA7(n)-
DA0(n)
Parity
Bits
BPC
Reg_0
Write
Y
SA[3:0]
1
Data[6:5]
Data[4]
Data{3:0]
Y
Y
-
-
-
-
-
-
Reg_1
Write
Y
SA[3:0]
0
10
Addr[4]
Data{3:0]
Y
-
Data[7:0]
-
-
-
Y
Y
Reg
Read
Y
SA[3:0]
0
11
Addr[4]
Data{3:0]
Y
Y
Data[7:0]
-
-
-
Y
Y
Legend:
SSC = Sequence start command
DA = Data/address frame bits
BC = Byte count (# of consecutive addresses)
C = Command frame bits
BPC = Bus park cycle




Html Pages

1  2  3  4  5  6  7  8  9  10  11  12 


датащит скачать




ссылки URL

Вашему бизинису помогли Аллдатащит?  [ DONATE ]  

Что такое Аллдатащит   |   реклама   |   контакт   |   Конфиденциальность    |   закладка   |   обмен ссыками   |   поиск по производителю
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , 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