Cypress CY8CNP102E Manual De Usuario

Document #: 001-43991 Rev. *D

Page 14 of 38

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.

1. AGND tolerance includes the offsets of the local buffer in the PSoC block. Bandgap voltage is 1.3V ± 0.02V.

V

BG33

Bandgap Voltage Reference 3.3V

1.28

1.30

1.32

V

–

AGND = Vcc/2

Vcc/2 - 0.02

Vcc/2

Vcc/2 + 0.02

V

–

AGND = 2 x BandGap

Not Allowed

–

AGND = P2[4] (P2[4] = Vcc/2)

P2[4] - 0.009

P2[4]

P2[4] + 0.009

V

–

AGND = BandGap

1.27

1.30

1.34

V

–

AGND = 1.6 x BandGap

2.03

2.08

2.13

V

–

AGND Block to Block Variation (AGND = Vcc/2)

-0.034

0.000

0.034

mV

–

RefHi = Vcc/2 + BandGap

Not Allowed

–

RefHi = 3 x BandGap

Not Allowed

–

RefHi = 2 x BandGap + P2[6] (P2[6] = 0.5V)

Not Allowed

–

RefHi = P2[4] + BandGap (P2[4] = Vcc/2)

Not Allowed

–

RefHi = P2[4] + P2[6] (P2[4] = Vcc/2, P2[6] = 0.5V) P2[4] + P2[6] - 0.042 P2[4] + P2[6] P2[4] + P2[6] + 0.042

V

–

RefHi = 2 x BandGap

2.50

2.60

2.70

V

–

RefHi = 3.2 x BandGap

Not Allowed

–

RefLo = Vcc/2 - BandGap

Not Allowed

–

RefLo = BandGap

Not Allowed

–

RefLo = 2 x BandGap - P2[6] (P2[6] = 0.5V)

Not Allowed

–

RefLo = P2[4] – BandGap (P2[4] = Vcc/2)

Not Allowed

–

RefLo = P2[4]-P2[6] (P2[4] = Vcc/2, P2[6] = 0.5V) P2[4] - P2[6] - 0.036 P2[4] - P2[6] P2[4] - P2[6] + 0.036

V

R

CT

Resistor Unit Value (Continuous Time)

–

12.2

–

k

Ω

C

SC

Capacitor Unit Value (Switch Cap)

–

80

–

fF