NTE NTE1296

NTE1296
Integrated Circuit
TV Chroma Processor/Demodulator
Features:
D No AGC or Killer Adjustment Necessary
D Transformerless VCO
Absolute Maximum Ratings: (TA = +25°C, unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Power Dissipation (TA = +65°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW
Operating Temperature Range, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −15° to +65°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C
Electrical Characteristics: (TA = +25°C, VCC = 12V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ Max
Unit
23.7 29.0 37.2
mA
Supply Current
ICC
Max. Chroma Output
Ec
Burst:Chroma = 1:1, Burst = 90mVp−p
0.57 0.67 0.77
Vp−p
ACC Range
EA
Burst:Chroma = 1:1, Burst = 10mVp−p
0.38 0.55 0.74
Vp−p
Killer Threshold
EK
Burst 90mVp−p = 0dB
−
−35
−
dB
Phase Detector Sensitivity
µ
Gate Pulse Width = 5µs
−
8
−
mV/deg
VCO Control Sensitivity
β
−
4
−
Hz/mV
APC Pull−In Range
fP
±300
−
−
Hz
Free−Running Frequency
fo
−100
0
100
Hz
VCO Output
V4
0.6
0.9
1.2
Vp−p
B−Y Output, f(beat) = 10kHz
4.5
6.2
−
Vp−p
R−Y Output
6.2
7.8
9.4
Max. Burst Output Voltage
Demod Conversion Gain
Demod Conversion Ratio
Eb(max)
Gr−y
Gate Off
Eb−y/Er−y B−Y Output, R−Y Output
1.19 1.33 1.47
Eg−y/Er−y (R−y) − (B−Y) = 100deg.
G−Y/R−Y Output
0.32 0.37 0.42
ecar1
No Signal Input measured with
3.58MHz BPF
−
−
0.2
Vp−p
ecar2
1.2Vp−p CW input measured with BPF
−
−
3.5
Vp−p
Color Killer Leakage
eK1
−
−
1
mVrms
Color Control Leakage
ec1
Bursy:Chroma = 1:1
R i b
Rainbow
Color
C l Bar
B
−
−
1
mVrms
Demod Carrier Leakage
Demod. DC Output Voltage
Eo(dc)
No signal input, VCO free−running
6.4
7.0
7.6
V
Differential Demod
Output Voltage
∆Eo(dc)
No signal input, VCO free−running
(B−Y) − (R−Y), (R−Y) − (G−Y),
(G−Y) − (B−Y)
−0.2
0
0.2
V
Pin Connection Diagram
APC Network 17
B − Y Output
1
16 Demodulator Input
R − Y Output
2
15 Bypass
G − Y Output
3
14 Bandpass Amp Output
Crystal
4
13 VCC
Crystal
5
12 Color Control
Tint Control
6
11 Chroma Input
VCO Control
7
10 Bypass
Flyback Pulse
Input
8
9
Chroma Input
GND 18
1.007 (25.5) Max
.964 (24.4)
18
17
18
17
8
1
.291 (7.4) Max
16
9
.248 (6.3)
.252 (6.4)
.200 (5.08)
15°
.188
(4.77)
.020
(.508)
.051 (1.29)
.100
(2.54)
Typ
.009
(0.22)