参数资料
型号: DSP56F801FA80E
厂商: Freescale Semiconductor
文件页数: 31/48页
文件大小: 0K
描述: IC DSP 60MHZ 16KB FLASH 48-LQFP
标准包装: 250
系列: 56F8xx
核心处理器: 56800
芯体尺寸: 16-位
速度: 80MHz
连通性: SCI,SPI
外围设备: POR,PWM,WDT
输入/输出数: 11
程序存储器容量: 20KB(10K x 16)
程序存储器类型: 闪存
RAM 容量: 2K x 16
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 8x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 48-LQFP
包装: 托盘
Analog-to-Digital Converter (ADC) Characteristics
56F801 Technical Data, Rev. 17
Freescale Semiconductor
37
1.
Parasitic capacitance due to package, pin to pin, and pin to package base coupling. (1.8pf)
2.
Parasitic capacitance due to the chip bond pad, ESD protection devices and signal routing. (2.04pf)
3.
Equivalent resistance for the ESD isolation resistor and the channel select mux. (500 ohms)
4.
Sampling capacitor at the sample and hold circuit. Capacitor 4 is normally disconnected from the input and is only connected to it at
sampling time. (1pf)
Figure 3-26 Equivalent Analog Input Circuit
Total Harmonic Distortion5
THD
55
60
dB
Signal-to-Noise plus Distortion5
SINAD
54
56
dB
Effective Number of Bits5
ENOB
8.5
9.5
bit
Spurious Free Dynamic Range5
SFDR
60
65
dB
Bandwidth
BW
100
KHz
ADC Quiescent Current (both ADCs)
IADC
—50
mA
VREF Quiescent Current (both ADCs)
IVREF
—12
16.5
mA
1.
For optimum ADC performance, keep the minimum VADCIN value > 250mV. Inputs less than 250mV volts may convert to
a digital output code of 0 or cause erroneous conversions.
2.
VREF must be equal to or less than VDDA - 0.3V and must be greater than 2.7V.
3.
Measured in 10-90% range.
4.
LSB = Least Significant Bit.
5.
Guaranteed by characterization.
6.
tAIC = 1/fADIC
Table 3-15 ADC Characteristics (Continued)
Characteristic
Symbol
Min
Typ
Max
Unit
1
2
3
4
ADC analog input
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