参数资料
型号: AD7478ARTZ-REEL
厂商: Analog Devices Inc
文件页数: 14/25页
文件大小: 0K
描述: IC ADC 8BIT 1MSPS SOT23-6
产品变化通告: Product Discontinuance 27/Oct/2011
标准包装: 10,000
位数: 8
采样率(每秒): 1M
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 17.5mW
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
供应商设备封装: SOT-23-6
包装: 带卷 (TR)
输入数目和类型: 1 个单端,单极
AD7476/AD7477/AD7478
Rev. F | Page 20 of 24
01
024
-02
8
SRD
SDATA
AD7476/
AD7477/
AD74781
DSP56xxx1
SCLK
SCK
CS
SC2
1ADDITIONAL PINS OMITTED FOR CLARITY
01
024
-02
9
MISO/PMC0
SDATA
AD7476/
AD7477/
AD74781
MC68HC161
SCLK
SCLK/PMC2
CS
SS/PMC9
1ADDITIONAL PINS OMITTED FOR CLARITY
Figure 28. Interfacing to the DSP56xxx
Figure 29. Interfacing to the MC68HC16
AD7476/AD7477/AD7478 to MC68HC16 Interface
The serial transfer takes place as a 16-bit operation when the
SIZE bit in the SPCR register is set to SIZE = 1. To implement
the power-down mode with an 8-bit transfer, set SIZE = 0.
A connection diagram is shown in Figure 29.
The serial peripheral interface (SPI) on the MC68HC16 is
configured for master mode (MSTR = 1), the clock polarity bit
(CPOL) = 1, and the clock phase bit (CPHA) = 0. The SPI is
configured by writing to the SPI Control Register (SPCR). For
more information on the MC68HC16, check with Motorola for
the related documentation.
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