Controller. NTE1786 Datasheet

NTE1786 Controller. Datasheet pdf. Equivalent

Part NTE1786
Description Integrated Circuit Frequency Lock Loop (FLL) Tuning & Controller
Feature NTE1786 Integrated Circuit Frequency Lock Loop (FLL) Tuning & Control Circuit Description: The NTE17.
Manufacture NTE
Datasheet
Download NTE1786 Datasheet



NTE1786
NTE1786
Integrated Circuit
Frequency Lock Loop (FLL)
Tuning & Control Circuit
Description:
The NTE1786 is an integrated circuit in a 24–Lead DIP type package that provides closed–loop digital
tuning of TV receivers, with or without AFC, as required. This device also controls up to 4 analog func-
tions, 4 general purpose I/O ports and 4 high–current outputs for tuner band selection.
Features:
D Combined Analog and Digital Circuitry Minimizes the Number of Additional Interfacing Components
Required
D Frequency Measurement with Resolution of 50kHz
D Selectable Prescaler Divisor of 64 or 256
D 32V Tuning Voltage Amplifier
D 4 High–Current Outputs for Direct Band Selection
D 4 Static Digital–to–Analog Convertors (DACs) for Control of Analog Functions
D 4 General Purpose Input/Output (I/O) Ports
D Tuning with Control of Speed and Direction
D Tuning with or without AFC
D Single–Pin, 4MHz On–Chip Oscillator
D I2C Bus Slave Transceiver
Applications:
D TV Receivers
D Satellite Receivers
D CATV Converters
Absolute Maximum Ratings:
Supply Voltage Ranges,
Pin13, VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +18V
Pin19, VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +18V
Pin14, VCC3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 to +36V



NTE1786
Absolute Maximum Ratings (Cont’d):
Input/Output Voltage Ranges,
Pin2, VSDA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to +18V
Pin3, VSCL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to +18V
Pin4 to Pin7, VP2X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to +18V
Pin8 & Pin9 (Note 1), VAFC+, VAFC. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to VCC1
Pin10, VTI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to VCC1
Pin12 (Note 2), VTUN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to VCC3
Pin15 to Pin18 (Note 2), VP1X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to VCC2
Pin20 (Note 1), VFDIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to VCC1
Pin21, VOSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to +5V
Pin1, Pin22 to Pin24 (Note 1), VDACX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 to VCC1
Total Power Dissipation, PTOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000mW
Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65° to +150°C
Note 1. Pin voltage may exceed supply voltage if current is limited to 10mA.
Note 2. Pin voltage must not exceed 18v but may exceed VCC2 of current is limited to 200mA.
DC and AC Electrical Characteristics: (TA = +25°C, VCC1, VCC2, VCC3 at typical voltages
unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Supply Voltage
VCC1
VCC2
VCC3
Supply Current (No Outputs Loaded) ICC1
ICC2
ICC3
Additional Supply Currents (A)
ICC2A Note 3
ICC3A Note 3
Total Power Dissipation
PTOT
Operating Ambient Temperature
TA
I2C Bus Inuts SDA Input (Pin2); SCL Input (Pin3)
10.5 12.0 13.5
V
4.7 13.0 16.0
V
30 32 35
V
18 30 45 mA
0 0.1 mA
0.2 0.6 2.0 mA
2 IOHP1X mA
0.2 2.0 mA
380 mW
20 +70 °C
Input Voltage, HIGH
VIH Note 4
Input Voltage, LOW
VIL
Input Current, HIGH
IIH Note 4
Input Current, LOW
IIL
I2C Bus Outputs SDA Output (Pin2, Open Collector)
3 VCC1 V
0.3 1.5 V
– – 10 µA
– – 10 µA
Output Voltage, LOW
VOL IOL = 3mA
Maximum Output Sink Current
IOL
Open–Collector I/O Ports P20, P21, P22, P23 (Pin4 to Pin7, Open Collector)
0.4 V
5 mA
Input Voltage, HIGH
Input Voltage, LOW
Input Current, HIGH
Input Current, LOW
Output Voltage, LOW
Maximum Output Sink Current
VIH
VIL
IIH
IIL
VOL IOL = 2mA
IOL
2
0.3
––
––
––
4
16 V
0.8 V
25 µA
25 µA
0.4 V
mA
Note 3. For each bandselect output which is programmed at logic 1, sourcing a current IOOP1X, the
additional supply currents (A) shown must be added to ICC2 and ICC3, respectively.
Note 4. If VCC1 < 1V, the input current is limited to 10µA at input voltages up to 16V.







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