HD6417011VX20V Renesas Electronics America, HD6417011VX20V Datasheet - Page 257

• Manufacturer Part Number: HD6417011VX20V
• Description: MPU 5V 0K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7010r

Specifications of HD6417011VX20V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: POR, PWM
• Number Of I /o: 11
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 7x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

The above four kinds of error are described below with reference to figure 13.7. For the sake of
clarity, this figure shows 3-bit A/D conversion rather than 10-bit A/D conversion. Offset error (see
figure 13.7 (1)) is the deviation between the actual A/D conversion characteristic and the ideal
A/D conversion characteristic when the digital output value changes from the minimum value
(zero voltage) of 0000000000 (000 in the figure) to 0000000001 (001 in the figure ). Full-scale
error (see figure 13.7 (2)) is the deviation between the actual A/D conversion characteristic and the
ideal A/D conversion characteristic when the digital output value changes from 1111111110 (110
in the figure) to the maximum value (full-scale voltage) of 111111111 (111 in the figure).
Quantization error is the deviation inherent in the A/D converter, given by 1/2 LSB (see figure
13.7 (3)). Nonlinearity error is the deviation between the actual A/D conversion characteristic and
the ideal A/D conversion characteristic from zero voltage to full-scale voltage (see figure 13.7
(4)). This does not include offset error, full-scale error, and quantization error.
Digital output
FS: Full-scale voltage
111
110
101
100
011
010
001
000
0
1/8
2/8
Ideal A/D conversion
characteristic
3/8
Figure 13.7 A/D Conversion Precision Definitions
4/8
(3) Quantization
error
5/8
6/8
Analog input
voltage
7/8
FS
Digital output
Ideal A/D conversion
characteristic
(1) Offset error
Actual A/D conversion
characteristic
(2) Full-scale error
(4) Nonlinearity
error
Analog input
voltage
FS
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