Automotive PSoC
®
4: PSoC
4000 Family Datasheet
Document Number: 001-92145 Rev. *E Page 15 of 31
CSD
Table 11. CSD and IDAC Block Specifications
Spec ID# Parameter Description Min Typ Max Units
Details/
Conditions
CSD and IDAC Specifications
SYS.PER#3 VDD_RIPPLE Max allowed ripple on power supply,
DC to 10 MHz
– – ±50 mV VDD > 2V (with ripple),
25 °C T
A
,
Sensitivity = 0.1 pF
SYS.PER#16 VDD_RIPPLE_1.8 Max allowed ripple on power supply,
DC to 10 MHz
– – ±25 mV VDD > 1.75V (with
ripple), 25 C T
A
, Parasitic
Capacitance (C
P
) <
20 pF, Sensitivity ≥ 0.4 pF
SID.CSD#15 VREF Voltage reference for CSD and
Comparator
1.1 1.2 1.3 V
SID.CSD#16 IDAC1IDD IDAC1 (8-bits) block current – – 1125 µA
SID.CSD#17 IDAC2IDD IDAC2 (7-bits) block current – – 1125 µA
SID308 V
CSD
Voltage range of operation 1.71 – 5.5 V 1.8 V ±5% or 1.8 V to
5.5 V
SID308A VCOMPIDAC Voltage compliance range of IDAC 0.8 – V
DD
–0.8 V
SID309 IDAC1
DNL
DNL for 8-bit resolution –1 – 1 LSB
SID310 IDAC1
INL
INL for 8-bit resolution –3 – 3 LSB
SID311 IDAC2
DNL
DNL for 7-bit resolution –1 – 1 LSB
SID312 IDAC2
INL
INL for 7-bit resolution –3 – 3 LSB
SID313 SNR Ratio of counts of finger to noise.
Guaranteed by characterization
5 – – Ratio Capacitance range of 9 to
35 pF, 0.1 pF sensitivity
SID314 IDAC1
CRT1
Output current of IDAC1 (8 bits) in
high range
– 612 – µA
SID314A IDAC1
CRT2
Output current of IDAC1(8 bits) in
low range
– 306 – µA
SID315 IDAC2
CRT1
Output current of IDAC2 (7 bits) in
high range
– 304.8 – µA
SID315A IDAC2
CRT2
Output current of IDAC2 (7 bits) in
low range
– 152.4 – µA
SID320 IDAC
OFFSET
All zeroes input – – ±1 LSB
SID321 IDAC
GAIN
Full-scale error less offset – – ±10 %
SID322 IDAC
MISMATCH
Mismatch between IDACs – – 7 LSB
SID323 IDAC
SET8
Settling time to 0.5 LSB for 8-bit
IDAC
– – 10 µs Full-scale transition. No
external load.
SID324 IDAC
SET7
Settling time to 0.5 LSB for 7-bit
IDAC
– – 10 µs Full-scale transition. No
external load.
SID325 CMOD External modulator capacitor. – 2.2 – nF 5-V rating, X7R or NP0
cap.
