参数资料
型号: AS3658-BCTP
厂商: ams
文件页数: 24/158页
文件大小: 0K
描述: IC PMU POWER/AUDIO 124-CTBGA
标准包装: 2,500
应用: 便携式设备
电流 - 电源: 7mA
电源电压: 3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 124-TFBGA
供应商设备封装: 124-CTBGA(8x8)
包装: 带卷 (TR)
AS3658
Data Sheet Confidential
- Detailed Description-Power Management Functions
8.1.3 Step Up DCDC Converter Registers
Table 8. Step Up DC/DC Bit definitions
Addr: 30
Step Up DC/DC control
This register controls the different modes of the step up DCDC converter
Bit
5
6
Bit Name
stpup1_on
stpup2_on
Default
ROM
ROM
Access
R/W
R/W
Description
On/Off control of the step up dc/dc converter1
On/Off control of the step up dc/dc converter2
Table 9. Step Up DC/DC Bit definitions
Addr: 32
Step Up DC/DC control
This register controls the different modes of the step up DCDC converter
Bit
Bit Name
Default
Access
Description
Invert input clock of step up2 converter
0
stpup2_clkinv
00h
R/W
0
Use positive edge of internal clk
1
Use negative edge of internal clk
Defines the clock frequency of the step up1 dc/dc
1
stpup1_freq
00h
R/W
converter;
0f clk_int /2 (0.8 to 1.15 MHz)
1f clk_int /4 (0.4 to 0.575 MHz)
2
-
00h
n/a
Always set to 0
Gain selection for DCDC step_up1:
Select 0 if DCDC is used with current feedback
3
stpup1_res
00h
R/W
0
(DCDC_CURR1,DCDC_CURR2,DCDC_CURR3)
or if DCDC_FB is used with current feedback only
(Only R1,C1 connected; (see Figure 6) )
1
0
Select 1 if DCDC_FB1 or DCDC_FB2 is used with
external resistor divider (2 resistors)
step_up_fb select the feedback of the DCDC
converter
The feedback is automatically chosen within the
4
stpup2_fb_auto
00h
RW
1
current sinks DCDC_CURR1,DCDC_ CURR2 and
DCDC_CURR3 (never DCDC_FB). Only those are
used for this selection, which are enabled and
connected to the step up converter
(currX_ctrl must be 10)
Defines the clock frequency of the step up2 dc/dc
converter
5
stpup2_freq
00h
R/W
0
f clk_int /2 (0.8 to 1.15 MHz)
1
f clk_int /4 (0.4 to 0.575 MHz)
6
-
00h
n/a
Always set to 0
Gain selection for DCDC step_up2:
Select 0 if DCDC is used with current feedback
7
stpup2_res
00h
R/W
0
(DCDC_CURR1,DCDC_CURR2,DCDC_CURR3)
or if DCDC_FB is used with current feedback only
(Only R1,C1 connected; (see Figure 6) )
1
Select 1 if DCDC_FB1 or DCDC_FB2 is used with
external resistor divider (2 resistors)
www.austriamicrosystems.com
Revision 1v13
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