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NTE7018 Datasheet, PDF (3/6 Pages) NTE Electronics – Integrated Circuit Small-Signal Subsystem for Color TV | |||
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DC and AC Electrical Characteristics (Contâd): (VCC = V7â6 = 12V, TA = +25°C, unless otherwise
specified)
Parameter
AFC Circuit (Contâd) (Pin18, Note 6)
Symbol Min Typ Max Unit
Control Steepness
Output Voltage at Nominal Tuning of the
ReferenceâTuned Circuit
â
70
â
mV/
kHZ
V18â6
â
6
â
V
Offset Current AFC Output (Pin20 and Pin21 ShortâCircuited)
Sound Circuit
I18
â TBD
â
µA
Input Limiting Voltage
(VO = VO MAX â3dB, QL = 16, fAF = 1kHZ, fC = 5.5MHZ)
Input Resistance (VI(RMS) = 1mV)
Input Capacitance (VI(RMS) = 1mV)
AM Rejection (VI = 10mV)
(VI = 50mV)
AF Output Signal (âf = 7.5kHZ, Minimum Distortion)
(âf = 50kHZ, Pin11 used as Starting Pin)
AF Output Impedance
Total Harmonic Distortion Volume Control 20dB,
(âf = 27.5kHZ, Weighted Acc. CCIR 468)
Ripple Rejection (fk = 100HZ, Volume Control 20dB)
(When Muted)
V15LIM
µV
â
400
800
R15â6
â
2.6
â
kâ¦
C15â6
â
6
â
pf
AMR
â
46
â
dB
â
50
â
V12â6(RMS) 400
600
800
mV
300 700 1200
Z12â6
â
25
100
â¦
THD
%
â
1
3
RR
â
35
â
dB
â
30
â
Output Voltage in Mute Condition
V12â6
â
3
â
V
SignalâtoâNoise Ratio (âf = 27.5kHZ Weighted Noise, CCIR 468)
S/N
â
45
â
dB
Volume Control
Voltage (Pin11 Disconnected)
Circuit (Pin11 Short Circuited)
External Control Resistor
Suppression Output Signal During Mute Condition
V11â6
â
5
â
V
I11
â
0.9
â
mA
R11â6
â
5
â
kâ¦
OSS
â
66
â
dB
Sync Separator and First Control Loop
Required Sync Pulse Amplitude (R17â25 = 2kâ¦, Note 7)
Input Current (V25â6 > 5V)
(V25â6 = 0V)
Holding Range PLL
Catching Range PLL
Control Sensitivity (Note 8)
(Video to Oscillator, at Weak Signal)
(at Strong Signal During Scan)
(During Vertical Retrace and Catching)
Second Control Loop (Positive Edge)
Control Sensitivity (R28â6 = 47k⦠Trim Pot)
Control Range
Phase Adjustment (Via Second Control Loop)
Control Sensitivity
Maximum Allowed Phase Shift
V25â6(PâP) 200
I25
â
â
屉f
â
屉f
60
â
â
â
800
10
TBD
1100
1000
2.5
3.75
7.5
â
â
â
1500
â
â
â
â
mV
µA
mA
HZ
HZ
kHZ/µs
âtD/âtO
â
50
â
tD
â
25
â
µs
â
25
â
µA/µs
a
â
±2
â
µs
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