Cypress CY8CNP102B, CY8CNP102E manual Psrrob

PRELIMINARY CY8CNP102B, CY8CNP102E

DC Analog Output Buffer Specifications

Table 28. 5V DC Analog Output Buffer Specifications (CY8CNP102E)

Symbol	Description	Min	Typ	Max	Units
VOSOB	Input Offset Voltage (Absolute Value)	–	3	12	mV
TCVOSOB	Average Input Offset Voltage Drift	–	+6	–	μV/°C
VCMOB	Common-Mode Input Voltage Range	0.5	–	Vcc - 1.0	V
ROUTOB	Output Resistance
	Power = Low	–	–	1	Ω
	Power = High	–	–	1	Ω
VOHIGHOB	High Output Voltage Swing (Load = 32 ohms to Vcc/2)
	Power = Low	0.5 x Vcc + 1.3	–	–	V
	Power = High	0.5 x Vcc + 1.3	–	–	V
VOLOWOB	Low Output Voltage Swing (Load = 32 ohms to Vcc/2)
	Power = Low	–	–	0.5 x Vcc - 1.3	V
	Power = High	–	–	0.5 x Vcc - 1.3	V
ISOB	Supply Current Including Bias Cell (No Load)
	Power = Low	–	1.1	2	mA
	Power = High	–	2.6	5	mA
PSRROB	Supply Voltage Rejection Ratio	40	64	–	dB

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.

Table 29. 5V DC Analog Reference Specifications (CY8CNP102E)

Symbol	Description	Min	Typ	Max	Units
VBG5	Bandgap Voltage Reference 5V	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]	2.52	2.60	2.72	V
–	AGND = P2[4] (P2[4] = Vcc/2)[1]	P2[4] - 0.013	P2[4]	P2[4] + 0.013	V
–	AGND = BandGap[1]	1.27	1.3	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	V
–	RefHi = Vcc/2 + BandGap	Vcc/2 + 1.21	Vcc/2 + 1.3	Vcc/2 + 1.382	V
–	RefHi = 3 x BandGap	3.75	3.9	4.05	V
–	RefHi = 2 x BandGap + P2[6] (P2[6] = 1.3V)	P2[6] + 2.478	P2[6] + 2.6	P2[6] + 2.722	V
–	RefHi = P2[4] + BandGap (P2[4] = Vcc/2)	P2[4] + 1.218	P2[4] + 1.3	P2[4] + 1.382	V
–	RefHi = P2[4] + P2[6] (P2[4] = Vcc/2, P2[6] = 1.3V)	P2[4] + P2[6] - 0.058	P2[4] + P2[6]	P2[4] + P2[6] + 0.058	V
–	RefHi = 2 x BandGap	2.50	2.60	2.70	V
–	RefHi = 3.2 x BandGap	4.02	4.16	4.29	V
–	RefLo = Vcc/2 – BandGap	Vcc/2 - 1.369	Vcc/2 - 1.30	Vcc/2 - 1.231	V
–	RefLo = BandGap	1.20	1.30	1.40	V
–	RefLo = 2 x BandGap - P2[6] (P2[6] = 1.3V)	2.489 - P2[6]	2.6 - P2[6]	2.711 - P2[6]	V
–	RefLo = P2[4] – BandGap (P2[4] = Vcc/2)	P2[4] - 1.368	P2[4] - 1.30	P2[4] - 1.232	V
–	RefLo = P2[4]-P2[6] (P2[4] = Vcc/2, P2[6] = 1.3V)	P2[4] - P2[6] - 0.042	P2[4] - P2[6]	P2[4] - P2[6] + 0.042	V
Document #: 001-43991 Rev. *D				Page 25 of 38

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