参数资料
型号: AS3658F-BCTP
厂商: ams
文件页数: 77/158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
Table 68. Step Down Voltage3 Bit definitions
Addr:02
Step Down Voltage3
These bits control the step down regulator voltage, frequency, clk phase
Bit
Bit Name
Default Access
Description
Control the voltage selection for the step down3 DC/DC
converter
5:0
step_down3_v
ROM
R/W
000000 0.6 V
… (LSB=50mV)
111000 – 11111 3.4 V
Select the step down3 frequency
6
sd3_frequ
ROM
R/W
0
f clk_int
(1.6MHz to 2.3 MHz)
1
f clk_int /2 (0.8MHz to 1.15 MHz)
7
sd3_clkinvert
ROM
R/W
Inverts the input clock of the step down1 converter
Table 69. Step down1 high current and DVM definitions
Addr:17
Charge Pump Control
These bits control the step down high current mode and DVM step size
Bit
Bit Name
Default Access
Description
Time step of DVM voltage change of step down1
If voltage of step down1 (step_down1_v) is changed during
operation, voltage is decreased or increased by 25 mV
steps with the following time separation between steps:
3:2
sd1_dvm_time
ROM
R/W
00
0 μsec, immediate change (no DVM)
01
10
11
4 μsec
8 μsec
16 μsec
Select 1A mode of step down2 (combined operation of SD2
and SD3 with a single coil and up to 1A output current) and/
or controller mode of SD1
1A mode selected Controlled by SD2 The
following pins have to be connected:
1010
VSUPPLY2<->VSUPPLY3, LX2<->LX3, PGND2<-
>PGND3
Stepdown3 is not usable in that mode
External controller mode. LDO DIG1 and current
7:4
sdx_1A_mode
ROM
R/W
1100
sink / GPIO CURR1_GPIO1 cannot be used. Set
ldo_dig1_on=0, GPIO1Mode=111b (tristate),
GPIO1Pulls=00b (no pull-up or pull-down)
External controller mode SD1, and 1A mode
controlled by SD2
1101
The following pins have to be connected:
VSUPPLY2<->VSUPPLY3, LX2<->LX3, PGND2<-
>PGND3
Stepdown3 is not usable in that mode
all other codes (0000...1001,1011,1110...1111) normal
mode
www.austriamicrosystems.com
Revision 1v13
76 - 157
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