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Stereo Decoder. NTE7050 Datasheet

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Stereo Decoder. NTE7050 Datasheet
















NTE7050 Decoder. Datasheet pdf. Equivalent













Part

NTE7050

Description

Integrated Circuit Phase Lock Loop (PLL) Stereo Decoder



Feature


NTE7050 Integrated Circuit Phase Lock Lo op (PLL) Stereo Decoder Description: Th e NTE7050 is a Phase Lock Loop (PLL) st ereo decoder with cassette head amplifi ers in a 16–Lead DIP type package des igned especially for car radios. This d evice has SDS circuitry where fluctuati ng signal strength can cause demodulati on noise and distortion. The stereo dec oder is compensated .
Manufacture

NTE Electronics

Datasheet
Download NTE7050 Datasheet


NTE Electronics NTE7050

NTE7050; for a typical IF filter with a roll–of f frequency of 50kHz (2dB down at 38kHz ). Features: D A Voltage–Controlled O scillator D A Pilot Presence Detector a nd an Automatic Mono/Stereo Switch D A Matrix and Two Amplifiers for the Left and Right Output Signal D Two Output Bu ffers with 10dB Gain and Low Output Imp edance D Mute Circuit D A Source Select or for Radio or Casset.


NTE Electronics NTE7050

te D An Input Amplifier of which the Gai n can be Adjusted by means of an Extern al Input Resistor D A Pilot Cancelling Circuit for an Extra Suppression of the Pilot Signal of 15dB D An Signal Depen dent Stereo (SDS) Circuit for a Smooth Change Over from Stereo to Mono at Weak Tuner Input Signals Absolute Maximum R atings: Supply Voltage (Pin3 and Pin9), V3–5, V9–5 . . . .


NTE Electronics NTE7050

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V LED Driver (Peak Current), I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mA Total Power Dissipation (TA = +25°C), PTOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6W Operati.





Part

NTE7050

Description

Integrated Circuit Phase Lock Loop (PLL) Stereo Decoder



Feature


NTE7050 Integrated Circuit Phase Lock Lo op (PLL) Stereo Decoder Description: Th e NTE7050 is a Phase Lock Loop (PLL) st ereo decoder with cassette head amplifi ers in a 16–Lead DIP type package des igned especially for car radios. This d evice has SDS circuitry where fluctuati ng signal strength can cause demodulati on noise and distortion. The stereo dec oder is compensated .
Manufacture

NTE Electronics

Datasheet
Download NTE7050 Datasheet




 NTE7050
NTE7050
Integrated Circuit
Phase Lock Loop (PLL) Stereo Decoder
Description:
The NTE7050 is a Phase Lock Loop (PLL) stereo decoder with cassette head amplifiers in a 16–Lead
DIP type package designed especially for car radios. This device has SDS circuitry where fluctuating
signal strength can cause demodulation noise and distortion. The stereo decoder is compensated
for a typical IF filter with a roll–off frequency of 50kHz (2dB down at 38kHz).
Features:
D A Voltage–Controlled Oscillator
D A Pilot Presence Detector and an Automatic Mono/Stereo Switch
D A Matrix and Two Amplifiers for the Left and Right Output Signal
D Two Output Buffers with 10dB Gain and Low Output Impedance
D Mute Circuit
D A Source Selector for Radio or Cassette
D An Input Amplifier of which the Gain can be Adjusted by means of an External Input Resistor
D A Pilot Cancelling Circuit for an Extra Suppression of the Pilot Signal of 15dB
D An Signal Dependent Stereo (SDS) Circuit for a Smooth Change Over from Stereo to Mono at
Weak Tuner Input Signals
Absolute Maximum Ratings:
Supply Voltage (Pin3 and Pin9), V3–5, V9–5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
LED Driver (Peak Current), I3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mA
Total Power Dissipation (TA = +25°C), PTOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6W
Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –30° to +80°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Thermal Resistance, Junction–to–Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75°C/W
Recommended Operating Characteristics: (All voltages with reference to Pin5)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Operating Supply Voltage
VCC
7.0 8.5 16.0 V




 NTE7050
DC Electrical Characteristics: (VCC = 8.5V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions Min Typ Max Unit
Current Consumption (Without LED Driver)
Power Dissipation
Voltages on Pin15
Voltages on Pin16, Pin12
DC Current Pin14
DC Current Pin2
Output Current Pin3
Switch VCO OFFVoltage (Pin7)
Current (Pin7)
ITOT
PD
V155
V165, V125
I14
I2
I3
V7
I7
15 mA
125 mW
2.0 V
3.5 V
195 275 390 µA
195 275 390 µA
– – 20 mA
2.2 V
– – 50 µA
AF Conditions:
Input MUX signal is 1VPP = 1kHz; VPILOT = 32mV (9%), oscillator adjusted to fOSC = 228kHz at VI = 0V,
unless otherwise specified. (All figures are measured with a rolloff network of 50kHz (2dB down at
38kHz) at the input.
AC Electrical Characteristics: (All parameters are measured in the circuit at nominal supply
voltage(VCC = 8.5V) and TA = +25°C)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Gain Input Amplifier
Input Impedance (External)
Maximum Input Voltage
Gain Output Buffers
Maximum Output Voltage
Output Impedance
Maximim Load Impedance
Muting Level
AV
ZI
VI
AV
VO12, 16
ZO
ZL
α muting
THD 1%
Pin12, Pin16
– – 20 dB
47 k
– – TBD VPP
10 dB
– – TBD V0
– – 500
5.0 – – k
90 dB
Source Selector
α
90 dB
Overall Performance
Overall Gain (Mono)
AF Output Voltage (RMS) Mono
VOUT/VIN
V12 = V16
10 11 12 dB
1.1 1.25 V
Total Harmonic Distortion
Output Voltage
Output Channel Unbalance
Channel Separation
THD
VOUT = 1.2VRMS, Note 1
VOUT 12, 16 THD = 1%
VOUT 12
VOUT 16
α
L = 1, R = 0
– – 0.5 %
– – TBD V
0.2 1.0 dB
26 40 dB
SignaltoNoise Ratio
S/N Bandwidth 20Hz to 16kHz 76 dB
Bandwidth DINA
82 dB
Note 1. Guaranteed for mono, mono +pilot, stereo.




 NTE7050
AC Electrical Characteristics (Cont’d): (All parameters are measured in the circuit at nominal
supply voltage(VCC = 8.5V) and TA = +25°C)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
SDS Control
10dB Channel Separation
V4
1.0 V
Full Stereo
V4 Channel Separation 26dB
1.2 V
Full Mono
V4 Channel Separation 1dB
0.8 V
Stereo/Mono Switch (R6 5 = 180k, Note 2)
For Switching to Stereo
VI
For Switching to Mono
VI
Hysteresis
VI
Carrier and Harmonic Suppression at the Output (Note 3)
14 20 mV
4 – – mV
4 mV
Pilot Signal
α19 f = 19kHz, R65 = 180k, Note 2 32 40 dB
Subcarrier
α38 f = 38kHz
45 dB
α57 f = 57kHz
50 dB
α228 f = 228kHz
75 dB
Intermodulation
Traffic Radio (VWF) Suppression
α2
α3
α57 (VWF)
fM = 10kHz, spurious signal,
fS = 1kHz, Note 4
fM = 13kHz, spurious signal,
fS = 1kHz, Note 4
f = 57kHz, Note 5
50 dB
50 dB
80 dB
SCA (Subsidary Communications
Authorization)
α67 f = 67kHz, Note 6
70 dB
Note 2. Also adjustable.
Note 3. Reference output voltage at 1kHz (measured channel R (Pin2)).
Note 4. Intermodulation suppression (BFC: BeatFrequency Components):
α2 =
VO (signal) at 1kHz
VO (spurious) at 1kHz
:
fS = (2 x 10kHz) 19kHz
α3 =
VO (signal) at 1kHz
VO (spurious) at 1kHz
:
fS = (3 x 13kHz) 38kHz
measured with: 91% mono signal; fM = 10 or 13kHz; 9% pilot signal.
Note 5. Traffic ratio (VWF) suppression:
α57
(VWF)
=
VO
VO (signal) at 1kHz
(spurious) at 1kHz ±23Hz
measured with: 91% stereo signal; fM = 1kHz; 9% pilot signal; 5% traffic subcarrier
(f = 57kHz; 60% AM modulated with f mod. 23Hz).
Note 6. SCA (Subsidary Communications Authorization):
α67 =
VO (signal) at 1kHz
VO (spurious) at 9kHz
fS = (2 x 38kHz) 67kHz
measured with: 81% mono signal; fM = 1kHz; 9% pilot signal; 10% SCAsubcarrier
(fS = 67kHz, unmodulated).




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