NTE712 TV/FM Sound IF Detector PDIP-14
Info als pdf File
Description:
The NTE712 is a versitile device in a 14-Lead DIP type package incorporating IF limiting, detection, electronic attenuation, audio amplifier, and audio driver capabilities.
Features:
- Differential Peak Detector Requiring a Single Tuned Circuit
- Electronic Attenuator Replaces Conventional AC Volume Control: range > 60dB
- Excellent AM Rejection @ 4.5 and 5.5MHz
- High Stability
- Low Harmonic Distortion
- Audio Drive Capability: 6mAP-P
- Minimum Undesirable Output Signal @ Maximum Attenuation
Absolute Maximum Ratings: (T
A = +25°C unless otherwise specified)
| Input Signal Voltage (Pin1 and Pin2) |
|
±3V |
| Power Supply Current |
|
50mA |
| Power Dissipation, PD |
|
625mW |
| Derate Above +25°C |
|
5mW/°C |
| Operating Ambient Temperature Range, Topr |
|
-20° to +75°C |
| Storage Temperature Range, Tstg |
|
-65° to +150°C |
Electrical Characteristics: (TA = +25°C, V+ = 24V unless otherwise specified)
| Parameter |
Pin |
Test Conditions |
Min |
Typ |
Max |
Unit |
| Regulated Voltage |
5 |
|
10.3 |
11.0 |
12.2 |
V |
| DC Supply Current |
5 |
V+ = 9V, RS = 0 |
10 |
16 |
24 |
mA |
| Quiescent Output Voltage |
12 |
|
5.1 |
- |
- |
V |
Dynamic Characteristics: (TA = +25°C, V+ = 24V unless otherwise specified)
| Parameter |
Test Conditions |
Min |
Typ |
Max |
Unit |
| IF Amplifier and Detector (fo = 4.5MHz, f = ±25kHz) |
| AM Rejection |
Vin = 10mVrms, Note 1 |
40 |
51 |
- |
dB |
| Input Limiting Threshold Voltage |
|
- |
200 |
400 |
µVrms |
| Recovered Audio Output Voltage |
Vin = 10mVrms |
0.5 |
0.7 |
- |
Vrms |
| Output Distortion |
Vin = 10mVrms |
- |
0.4 |
2.0 |
% |
| IF Amplifier and Detector (fo = 5.5MHz, f = ±50kHz) |
| AM Rejection |
Vin = 10mVrms, Note 1 |
40 |
53 |
- |
dB |
| Input Limiting Threshold Voltage |
|
- |
200 |
400 |
µVrms |
| Recovered Audio Output Voltage |
Vin = 10mVrms |
0.5 |
0.91 |
- |
Vrms |
| Output Distortion |
Vin = 10mVrms |
- |
0.9 |
- |
% |
| Input Impedance Components |
Parallel Input Resistance |
f = 4.5MHz, measurement between Pin1 and Pin2 |
- |
17 |
- |
k Ohm |
| Parallel Input Capacitance |
- |
4 |
- |
pF |
| Output Impedance Components |
Parallel Output Resistance |
f = 4.5MHz, measurement between Pin9 and GND |
- |
3.25 |
- |
k Ohm |
| Parallel Output Capacitance |
- |
3.6 |
- |
pF |
| Output Resistance |
Pin7 |
|
- |
7.5 |
- |
k Ohm |
| Pin8 |
- |
250 |
- |
Ohm |
| Attenuator |
| Volume Reduction Range |
DC Volume Control = Infinity |
60 |
- |
- |
dB |
| Maximum Undesirable Signal |
DC Volume Control = Infinity, Note 2 |
- |
0.07 |
1.0 |
mV |
| Audio Amplifier |
| Voltage Gain |
Vin = 0.1Vrms, f = 400Hz |
1.75 |
20.0 |
- |
dB |
| Total Harmonic Distortion |
VO = 2Vrms, f = 400Hz |
- |
2.0 |
- |
% |
| Output Voltage |
THD = 5%, f = 400Hz |
2.0 |
3.0 |
- |
Vrms |
| Input Resistance |
f = 400Hz |
- |
70 |
- |
k Ohm |
| Output Resistance |
f = 400Hz |
- |
270 |
- |
Ohm |
| Note 1. | 100% FM, 30% AM Modulation. |
| Note 2. | Undesirable signal is measured at Pin8 when volume control is set for minimum output. |
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