Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

SC905 Datasheet(PDF) 13 Page - Semtech Corporation

Part # SC905
Description  CDMA Cellular Phone Power Management IC
PDF  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC905 Datasheet(HTML) 13 Page - Semtech Corporation

Back Button SC905 Datasheet HTML 9Page - Semtech Corporation SC905 Datasheet HTML 10Page - Semtech Corporation SC905 Datasheet HTML 11Page - Semtech Corporation SC905 Datasheet HTML 12Page - Semtech Corporation SC905 Datasheet HTML 13Page - Semtech Corporation SC905 Datasheet HTML 14Page - Semtech Corporation SC905 Datasheet HTML 15Page - Semtech Corporation SC905 Datasheet HTML 16Page - Semtech Corporation SC905 Datasheet HTML 17Page - Semtech Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 13 / 21 page
background image
13
© 2006 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC905
SC905 Slave Address:
Defaults are indicated in BOLD.
Notes:
(1) The default status bit (DSB) is set to 1 only when the SC905 is enabled by either the HFPWR pin or the ON pin being pulled high, and it cannot
be set to one through the I2C interface. When changing the VPAD control voltage, always write to register 0 with bit seven high. Set bit seven low
only when the DSB is to be cleared by the MSM. This will prevent any software race condition in a multi-tasking environment. See the applica-
tions section for more information on using the DSB.
(2) The Active Shutdown defaults ON at power-up, but the registers maintain their settings as the LDOs are enabled and disabled during normal
operation.
Register Name
Register
Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Default
State
VPAD
VCORE
VMOT
VANA/VCAM
VTCXO/VRX
VPLL/VTX
ON/OFF
CONTROL
ACTIVE(2)
SHUTDOWN
STATUS
(READ ONLY)
0
1
2
3
4
6
5
7
8
DSB(1)
1
0
User
State
X
X
VPAD4
VPAD3
VPAD2
VPAD1
VPAD0
XX
XVCORE4
VCORE3
VCORE2
VCORE1
VCORE0
X
VMOT_EN
VMOT
Active SHDN
VMOT4
VMOT3
VMOT2
VMOT1
VMOT0
1
0
1
0
OFF
OFF
ON
ON
VANA2
VANA1
VANA0
VCAM4
VCAM3
VCAM2
VCAM1
VCAM0
VTCXO2
VTCXO1
VTCXO0
VRX2
VRX1
VRX0
VPLL2
VPLL1
VPLL0
VTX2
VTX1
VTX0
X
X
X
X
VPAD_EN
10
OFF
ON
VCORE_EN
10
OFF
ON
VANA_EN
10
OFF
ON
VCAM_EN
10
OFF
ON
VTCXO_EN
10
OFF
ON
VPLL_EN
10
OFF
ON
VTX_EN
10
OFF
ON
VRX_EN
10
OFF
ON
VPAD
Active SHDN
1
0
OFF
ON
VCORE
Active SHDN
10
OFF
ON
VANA
Active SHDN
1
0
OFF
ON
VCAM
Active SHDN
1
0
OFF
ON
VTCXO
Active SHDN
1
0
OFF
ON
VPLL
Active SHDN
1
0
OFF
ON
VTX
Active SHDN
1
0
OFF
ON
VRX
Active SHDN
10
OFF
ON
FAULTB
1
0
FAULT
OK
CHRGB
1
0
OFF
ON
CPB
1
0
OFF
ON
OTF
10
OK
FAULT
X
X
X
X
DEVICE ADDRESS
R/W
000100
0
X
Register Map



Html Pages

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


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   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