Control Preamp. NTE1761 Datasheet

NTE1761 Preamp. Datasheet pdf. Equivalent

Part NTE1761
Description Integrated Circuit Infrared Remote Control Preamp
Feature NTE1761 (Active High) & NTE1762 (Active Low) Integrated Circuit Infrared Remote Control Preamp Featu.
Manufacture NTE
Datasheet
Download NTE1761 Datasheet




NTE1761
NTE1761 (Active High) & NTE1762 (Active Low)
Integrated Circuit
Infrared Remote Control Preamp
Features:
D High Frequency Amplifier with a Control Range of 66dB
D Synchronous Demodulator and Reference Amplifier
D AGC Detector
D Pulse Shaper
D Q–Factor Killing of the Input Selectivity, which is Controlled by the AGC Circuit
D Input Voltage Limiter
Absolute Maximum Ratings:
Supply Voltage (Pin8), VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.2V
Output Current Pulse Shaper (Pin11), I11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Voltages Between Pins (Note 1)
Pin2 and Pin15, V2–15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V
Pin4 and Pin13, V4–13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V
Pin5 and Pin6, V5–6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V
Pin7 and pin10, V7–10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V
Pin9 and Pin11, V9–11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5V
Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –25° to +125°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65° to +150°C
Note 1. All pins except Pin11 are short–circuit protected.
DC Electrical Characteristics: (TA = +25°C, VCC = V8 = 5V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Supply (Pin8)
Supply Voltage
VCC
Supoply Current
ICC = I8
Controlled High Frequency Amplifier (Pin2 and Pin15)
4.65 5.0 5.35 V
1.2 2.1 3.0 mA
Minimum Input Signal (Peak–to–Peak)
V2–15(P–P) f = 36kHz, Note 2
f = 36kHz, Note 3
– 15 25 µV
– – 5 µV
AGC Control Ragne (Without Q–Killing)
60 66 – dB
Input Signal for Correct Operation (Peak–to–Peak)
Q–Killing Inactive (Peak–to–Peak)
V2–15(P–P) Note 3
V2–15(P–P) I3 = I14 < 0.5µA
0.02 – 200 mV
– – 140 µV
Q–Killing Active (Peak–to–Peak)
V2–15(P–P) I14 = I3 = Max
28 –
– mV
Note 2. For NTE1761, voltage at Pin9 is HIGH (–I9 = 75µA).
For NTE1762, voltage at Pin9 is LOW (I9 = 75µA).
Note 3. For NTE1761, voltage at Pin9 remains LOW. For NTE1762, voltage at Pin9 remains HIGH.



NTE1761
DC Electrical Characteristics (Cont’d): (TA = +25°C, VCC = V8 = 5V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Inputs
Pin2 Voltage
Pin15 Voltage
Pin2 Resistance
Pin2 Capacitance
Input Limiting, Pin1
Outputs
V2
V15
R215
C215
V116
I1 = 3mA
2.25 2.45 2.65 V
2.25 2.45 2.65 V
10 15 20 k
3 pF
0.8 0.9 V
Output Voltage HIGH (Pin9)
Output Voltage LOW (Pin9)
Output Current, Output Voltage HIGH
Output Current, Output Voltage LOW
Output Resistance Between Pin7 and Pin10
Pulse Shaper (Pin11)
V98
V9
I9
I9
R710
I9 = 75µA
I9 = 75µA
V9 = 4.5V
V9 = 3.0V
V9 = 1.0V
V9 = 0.5V
0.1 0.5 V
0.1 0.5 V
75 120 µA
75 130 µA
75 140 µA
75 120 µA
3.1 4.7 6.2 k
Trigger Level in Positive Direction
V11 Voltage Pin9 changes 3.75 3.9 4.05 V
from HIGH to LOW
Trigger Level in Negative Direction
V11 Voltage Pin9 changes
from LOW to HIGH
3.4 3.55 3.7 V
Hysteresis of Trigger Levels
AGC Detector (Pin12)
V11
0.25 0.35 0.45 V
AGC Capacitor Charge Current
AGC Capacitor Discharge Current
Q–Factor Killer (Pin3 and Pin14)
I12
I12
3.3 4.7 6.1 µA
67 100 133 µA
Output Current (Pin3)
Output Current (Pin14)
I3 V1216 = 2V
I14 V1216 = 2V
2.5 7.5 15 µA
2.5 7.5 15 µA
Note 4. Undistorted output pulse with 100% AM input.
Pin Connection Diagram
Input Signal 1
Input Signal 2
Q Factor Input 3
Feedback Cap Input 4
Feedback Cap Input 5
Feedback Cap Input 6
Coil Input 7
VCC 8
16 GND
15 Input Signal
14 Q Factor Input
13 Feedback Cap Input
12 AGC Detector Time Constant
11 Pulse Shaper Capacitor
10 Coil Input
9 Output







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