參數(shù)資料
型號: CY8CLED16P01-28PVXI
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PDSO28
封裝: 0.210 INCH, LEAD FREE, SSOP-28
文件頁數(shù): 22/58頁
文件大小: 837K
代理商: CY8CLED16P01-28PVXI
CY8CLED16P01
Document Number: 001-49263 Rev. *J
Page 29 of 58
10.3.6 DC Analog Reference Specifications
Table 10-8 lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V and -40°C
T
A 85°C. Typical parameters apply to 5V at 25°C and are for design guidance only.
The guaranteed specifications are measured through the Analog Continuous Time PSoC blocks. The power levels for AGND refer to
the power of the Analog Continuous Time PSoC block. The power levels for RefHi and RefLo refer to the Analog Reference Control
register. The limits stated for AGND include the offset error of the AGND buffer local to the Analog Continuous Time PSoC block.
Reference control power is high.
Note
Avoid using P2[4] for digital signaling when using an analog resource that depends on the Analog Reference. Some coupling
of the digital signal may appear on the AGND.
Table 10-8. 5-V DC Analog Reference Specifications
Reference
ARF_CR[5:3]
Reference Power
Settings
Symbol
Reference
Description
Min
Typ
Max
Unit
0b000
RefPower = High
Opamp bias = High
VREFHI
Ref High
VDD/2 + Bandgap
VDD/2 + 1.228
VDD/2 + 1.290 VDD/2 + 1.352
V
VAGND
AGND
VDD/2
VDD/2 – 0.078
VDD/2 – 0.007 VDD/2 + 0.063
V
VREFLO
Ref Low
VDD/2 – Bandgap
VDD/2 – 1.336
VDD/2 – 1.295 VDD/2 – 1.250
V
RefPower = High
Opamp bias = Low
VREFHI
Ref High
VDD/2 + Bandgap
VDD/2 + 1.224
VDD/2 + 1.293 VDD/2 + 1.356
V
VAGND
AGND
VDD/2
VDD/2 – 0.056
VDD/2 – 0.005 VDD/2 + 0.043
V
VREFLO
Ref Low
VDD/2 – Bandgap
VDD/2 – 1.338
VDD/2 – 1.298 VDD/2 – 1.255
V
RefPower = Med
Opamp bias = High
VREFHI
Ref High
VDD/2 + Bandgap
VDD/2 + 1.226
VDD/2 + 1.293 VDD/2 + 1.356
V
VAGND
AGND
VDD/2
VDD/2 – 0.057
VDD/2 – 0.006 VDD/2 + 0.044
V
VREFLO
Ref Low
VDD/2 – Bandgap
VDD/2 – 1.337
VDD/2 – 1.298 VDD/2 – 1.256
V
RefPower = Med
Opamp bias = Low
VREFHI
Ref High
VDD/2 + Bandgap
VDD/2 + 1.226
VDD/2 + 1.294 VDD/2 + 1.359
V
VAGND
AGND
VDD/2
VDD/2 – 0.047
VDD/2 – 0.004 VDD/2 + 0.035
V
VREFLO
Ref Low
VDD/2 – Bandgap
VDD/2 – 1.338
VDD/2 – 1.299 VDD/2 – 1.258
V
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