参数资料
型号: MC9328MX1VM20
厂商: Freescale Semiconductor
文件页数: 60/100页
文件大小: 0K
描述: IC MCU I.MX 200MHZ 256-MAPBGA
标准包装: 152
系列: i.MX1
核心处理器: ARM9
芯体尺寸: 32-位
速度: 200MHz
连通性: EBI/EMI,I²C,MMC,智能卡,SPI,SSI,UART/USART,USB
外围设备: DMA,I²S,LCD,POR,PWM,WDT
输入/输出数: 110
程序存储器类型: ROMless
电压 - 电源 (Vcc/Vdd): 1.7 V ~ 3.3 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 256-MAPBGA
包装: 托盘
Functional Description and Application Information
MC9328MX1 Technical Data, Rev. 7
62
Freescale Semiconductor
4.6.4
Gain Error Calculations
Gain error calculations are made using the information in this section.
Figure 36. Gain Error Calculations
Assuming the offset remains unchanged, the mapping is rotated around y-intercept to determine the
maximum gain allowed. This occurs when the sample at 1800mV has just reached the ceiling of the 16-bit
range, 65535.
Maximum Offset Gmax,
Gmax
= (65535 - C0) / 1800
= (65535 - 32767) / 1800
= 18.20
Gain Error Gr,
Gr
= (Gmax - G0) / G0 * 100%
= (18.20 - 13.65) / 13.65 * 100%
= 33%
4.7
Bluetooth Accelerator
CAUTION
On-chip accelerator hardware is not supported by software. An external
Bluetooth chip interfaced to a UART is recommended.
The Bluetooth Accelerator (BTA) radio interface supports the Wireless RF Transceiver, MC13180 using
an SPI interface. This section provides the data bus timing diagrams and SPI interface timing diagrams
shown in Figure 37 and Figure 38, and the associated parameters shown in Table 22 and Table 23.
2400
1800
Smax
65535
C0
G0
Sample
Vi
- 2400
Gmax
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