参数资料
型号: AS3658-BCTP
厂商: ams
文件页数: 138/158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 - System Functions
Table 161. ADC control Registers bits
Addr:96
ADC_control
This register controls the 10 Bit ADC
Bit
Bit Name
Default
Access
Description
Selects an ADC channel
0000
0001
0010
0011
0100
ADC1_IN (LSB = 1.76mV)
ADC2_IN (LSB = 1.76mV)
V BAT Battery voltage (LSB=5.27mV)
VCHARGER (LSB=17. 6mV) clamping at 10V
V_USB Voltage (LSB=5.27mV)
3:0
adc_select
0000b
R/W
0101
not used
temperature sensor:
0110
0111
1000
1001
DIE temperature [°C] = adc_result * 0.866 –
274
ADC test channel – do not use
check voltage on MICS for remote control or
external voltage measurement (LSB=3.52mV)
VBACK voltage (LSB=3.52mV)
select ADC sampling frequency
4
adc_slow
0b
R/W
0
275kHz (conversion time: 60μs)
1
70kHz (conversion time: 240μs)
5
-
-
-
reserved (do not use)
Writing a 1 into this bit continuously activates the ADC
S/H and the input multiplexer. The ADC and the MUX
6
adc_on
0b
R/W
are also activated for a conversion period when
start_conversion is set to ‘1’ – useful for high
impedance input sources on ADC1_IN or ADC2_IN
7
start_conversion
0b
R/W
Writing a 1 into this bit starts one ADC conversion.
Table 162. ADC MSB result register
Addr:97
ADC_MSB result
This register shows the MSB result of the ADC conversion
Bit
0
1
2
3
4
5
6
Bit Name
D3
D4
D5
D6
D7
D8
D9
Default
NA
NA
NA
NA
NA
NA
NA
Access
R
R
R
R
R
R
R
Description
ADC result register
ADC result register
ADC result register
ADC result register
ADC result register
ADC result register
ADC result register
Indicates end of conversion
7
result_not_ready
NA
R
0
result is ready
1
conversion is running
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Revision 1v13
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