Filter
Top Products
PRELIMINARY CY8CNP102B, CY8CNP102E
Document #: 001-43991 Rev. *D Page 14 of 38
DC Analog Reference Specifications
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.
DC Analog PSoC NV Block Specifications
Note
1. AGND tolerance includes the offsets of the local buffer in the PSoC block. Bandgap voltage is 1.3V ± 0.02V.
Table 10. 3.3V DC Analog Reference Specifications (CY8CNP102B)
Symbol Description Min Typ Max Units
V
BG33
Bandgap Voltage Reference 3.3V 1.28 1.30 1.32 V
– AGND = Vcc/2
[1]
Vcc/2 - 0.02 Vcc/2 Vcc/2 + 0.02 V
– AGND = 2 x BandGap
[1]
Not Allowed
– AGND = P2[4] (P2[4] = Vcc/2) P2[4] - 0.009 P2[4] P2[4] + 0.009 V
– AGND = BandGap
[1]
1.27 1.30 1.34 V
– AGND = 1.6 x BandGap
[1]
2.03 2.08 2.13 V
– AGND Block to Block Variation (AGND = Vcc/2)
[1]
-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
Table 11. 3.3V DC Analog PSoC NV Block Specifications (CY8CNP102B)
Symbol Description Min Typ Max Units
R
CT
Resistor Unit Value (Continuous Time) – 12.2 – kΩ
C
SC
Capacitor Unit Value (Switch Cap) – 80 – fF
[+] Feedback