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NTE1786 Datasheet, PDF (4/5 Pages) NTE Electronics – Integrated Circuit Frequency Lock Loop (FLL) Tuning & Control Circuit | |||
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DC and AC Electrical Characteristics (Contâd): (TA = +25°C, VCC1, VCC2, VCC3 at typical voltages
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
BandâSelect Output Ports (Contâd) P10, P11, P12, P13 (Pin15 to Pin18)
Maximum Output Source Current
Maximum Output Sink Current
FDIV Input (Pin20)
Input Voltage (PeakâtoâPeak Value)
Duty Cycle
âIOH
IOL
Note 5
VFDIVPâP) tRISE and tFALL ⤠40ns
â
130 200
mA
â
5
â
mA
0.1
â
2.0
V
40
â
60
%
Maximum Input Frequency
fMAX
Input Impedance
Zi
Input Capacitance
CI
OSC Input (Pin21)
14.5
â
â
8
â
5
â
MHz
â
kâ¦
â
pF
Crystal Resistance at Resonance
RX
(4MHz)
â
â
150
â¦
DAC Outputs (Pin1, Pin22 to Pin24)
Maximum Output Voltage (No Load)
Minimum Output Voltage (No Load)
Positive Value of Smallest Step
Deviation from Linearity
VDH VCC1 = 12V, Note 6
VDL VCC1 = 12V, Note 6
âVD 1 Least Significant Bit
10.0
â
11.5
V
0.1
â
1.0
V
0
â
350
mV
â
â
0.5
V
Output Impedance
Maximum Output Source Current
Maximum Output Sink Current
PowerâDown Reset
ZD
âIDH
IDL
ILOAD = ±2mA
â
â
70
â¦
â
â
6
mA
â
8
â
mA
Maximum Supply Voltage (VCC1) at
VPD
which PowerâDown Reset is
Active
7.5
â
9.5
V
VCC1 Rise Time During PowerâUp
tR
(Up to VPD)
Voltage Level for Valid Module Address
5
â
â
µs
Voltage Level at P20 (Pin4) for Valid
Module Address as a Function of
MA1, MA0
VVA00
VVA01
VVA10
VVA11
MA1: 0, MA0: 0
MA1: 0, MA0: 1
MA1: 1, MA0: 0
MA1: 1, MA0: 1
â0.3
â
16
V
â0.3
â
0.8
V
2.5
â VCC1â2 V
VCC1â0.3 â
VCC1
V
Note 5. At continuous operation the output current should not exceed 50mA. When the output is
shortâcircuited to GND for several seconds the device may be damaged.
Note 6. Values are proportional to VCC1.
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