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1.3 Absolute Maximum Ratings
Absolute maximum electrical ratings are over the
operating temperature range.
Absolute Maximum Ratings are stress ratings. Stresses in
excess of these ratings can cause permanent damage to
the device. Functional operation of the device at conditions
beyond those indicated in the operational sections of this
data sheet is not implied.
1.4 Recommended Operating Conditions
1
V
PV
applied only when programming the EEPROM.
1.5 ESD Ratings
1.6 General Conditions for Electrical Characteristics
Typical values are characteristic of the device and are
the result of engineering evaluations. They are
provided for informational purposes only, and are not
guaranteed by production testing.
Unless otherwise specified: Specifications cover the
operating temperature range T
A
=-40C to +85C, the
supply voltage range V
DD
= 2.5V to 5.5V and
V
PV
= 0V (or pin PV is open circuit). For testing
purposes V
DD
= 5V, the logic low input voltage is 0V
DC
and the logic high input voltage is 5V
DC
.
Parameter Minimum Maximum Unit
Supply Voltage, V
DD
-V
SS
-0.3 + 6 V
Pins DA, CLK, and X1 Voltage
V
SS
-0.3 V
DD
+ 0.3
V
Pin PV Voltage
V
SS
-0.3
7.5 V
PV Pulse Width, t
PV
-80ms
Operating Temperature, T
A
-40 +85 C
Storage temperature, T
STG
-55 +150 C
Parameter Symbol Minimum Typical Maximum Unit
Supply Voltage
V
DD
2.5 3.3 5.5 V
X1 Voltage
V
X1
--3.6V
PV Voltage
1
V
PV
66.57 V
PV Pulse Width
t
PV
40 50 80 ms
Operating Temperature
Normal Operation and
Shift Register Mode
T
A
-40 - +85
°C
Programming Modes +20 - +30
Parameter Symbol Conditions Rating Unit
Human Body Model HBM EIA/JESD22-A114-D
All pins except X1 +2
kV
Pin X1 +
1
Charged Device Model CDM EIA/JESD22-C101-C
All pins except X1 +
500
V
Pin X1 +
250
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R02 www.ixysic.com 5
1.7 Capacitor Electrical Characteristics (Pin X1)
Parameters measured at the Nominal Operating Temperature of 25±5°C, unless otherwise noted.
Notes:
1
Contact the factory for operational capabilities beyond 250MHz.
2
Simulation results (not measurements).
3
Code=0 corresponds to “00000000000” as seen in the shift register (no additional capacitance).
4
Code=1023 corresponds to “11111111110” as seen in the shift register (maximum additional capacitance). CHK = 0.
5
The CHK bit is not used to determine the Code’s decimal value.
6
Capacitance variations due to temperature are always smaller than 180fF between the nominal temperature (25°C) and maximum or minimum
operating temperature.
1.8 Power Supply
Notes:
1
Set V
PV
=0V or leave pin PV open circuit.
2
V
PV
=6.5V only when programming the EEPROM.
Parameter Test Conditions Symbol Minimum Typical Maximum Unit
Operational Frequency Range
1
-
f
X1
0.2 - 250 MHz
Variation of Capacitance vs. V
DD
2
Code=0
3,5
, f=50MHz
V
DD
=3.3V
-2635 -2790 -2800
ppm/V
V
DD
=5V
dC/dV
-4305 -4785 -4795
Code=1023
4,5
, f=50MHz
V
DD
=3.3V
-390 -455 -505
V
DD
=5V
-555 -705 -785
Temperature Drift
2
Code=0
3,5
, f=50MHz
V
DD
=3.3V
-+207-
ppm/°C
V
DD
=5V
dC/dT
- +204.4 -
Code=1023
4,5
, f=50MHz
V
DD
=3.3V
-+41.4-
V
DD
=5V
-+40.8-
Variation of Capacitance vs. process
2
---25-+25%
Parameter Symbol Minimum Typical Maximum Unit
Normal Operation and Shift Register Mode
Supply Voltage
V
DD
2.5 3.3 5.5 V
Supply Current
I
DD
-150A
PV Voltage
1
V
PV
-0-V
Power Dissipation - - - 100 mW
Programming Modes
Supply Voltage
V
DD
4.75 5 5.25 V
Programming Voltage
2
V
PV
66.57 V
Programming Current
I
PV
--4mA
Programming Verification
Supply Voltage
V
DD
4.75 5 5.25 V
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1.9 Digital Interface Electrical Characteristics
1.10 Digital Interface AC Characteristics
Parameter Conditions Symbol Minimum Typical Maximum Unit
Input Voltage
Logic 1 Threshold CLK and DA
V
IH
--
V
DD
-0.5
VLogic 0 Threshold CLK, DA and PV
V
IL
0.5 - -
Hysteresis CLK and DA
V
IH
- V
IL
-0.2-
Output Voltage
Pin PV
with a 68k
Pull-up to V
DD
Logic 1
V
OH
0.6 V
DD
V
Logic 0
V
OL
0.4 V
DD
Pull-Down Resistors
Pins CLK and DA
T
A
= +25C
R
CLK
, R
DA
118 135 150
k
T
A
= 25 ±5C
116 154
-40C <
T
A
< +85C
101 184
Pin PV
T
A
= +25C
R
PV
157 180 203
k
T
A
= 25 ±5C
155 205
-40C < T
A
< +85C
135 245
Input Capacitance CLK and DA
C
CLK
, C
DA
--1.2pF
Parameter Conditions Symbol Minimum Typical Maximum Unit
Serial Clock
Frequency
-
f
CLK
- - 120 kHz
Duty Cycle
D
CLK
40 50 60 %
Serial Data
Setup time
-
t
setup
1--us
Hold time
t
hold
1--us
Shift Register Mode
X1 Valid delay CLK = 1
t
d_X1
--1us
Programming Mode
V
DD
= 5V, T
A
=25+5C
PV Rising Edge delay CLK = 1
t
d_PV
4--us
PV Pulse Width
V
PV
= 6.5V t
PV
40 - 80 us
CLK Falling Edge delay PV = 0
t
d_CLK
0--us
X1 Valid delay CLK = 0
t
d_M-X1
--15us
Programming Verification
V
DD
= 5V,
Only one input bit = logic 0
PV Output Voltage Valid delay CLK = 1
t
d_PV_out
--4us
Power Up Delay: Time before sending the first
command after power supply reaches 95% of its value.
-
t
SC
500 - - s

NCD2100TTR

Mfr. #:
Manufacturer:
Description:
Trimmer / Variable Capacitors Trimmer / Variable Capacitors Non-Volatile Digi tal Programmable Cap
Lifecycle:
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