NTE1296 Datasheet, PDF (1/2 Pages) NTE Electronics – Integrated Circuit TV Chroma Processor/Demodulator

NTE1296
Integrated Circuit
TV Chroma Processor/Demodulator
Features:
D No AGC or Killer Adjustment Necessary
D Transformerless VCO
Absolute Maximum Ratings: (T_A = +25°C, unless otherwise specified)
Supply Voltage, V_CC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Power Dissipation (T_A = +65°C), P_D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW
Operating Temperature Range, T_opg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −15° to +65°C
Storage Temperature Range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −55° to +125°C
Electrical Characteristics: (T_A = +25°C, V_CC = 12V unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Supply Current
I_CC
23.7 29.0 37.2 mA
Max. Chroma Output
E_c Burst:Chroma = 1:1, Burst = 90mV_p−p 0.57 0.67 0.77 V_p−p
ACC Range
E_A Burst:Chroma = 1:1, Burst = 10mV_p−p 0.38 0.55 0.74 V_p−p
Killer Threshold
E_K Burst 90mV_p−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
Free−Running Frequency
VCO Output
Max. Burst Output Voltage
Demod Conversion Gain
Demod Conversion Ratio
f_P
f_o
V₄
E_b(max)
G_r−y
E_b−y/E_r−y
E_g−y/E_r−y
Gate Off
B−Y Output, f_(beat) = 10kHz
R−Y Output
B−Y Output, R−Y Output
(R−y) − (B−Y) = 100deg.
G−Y/R−Y Output
±300 − −
−100 0 100
0.6 0.9 1.2
4.5 6.2 −
6.2 7.8 9.4
1.19 1.33 1.47
0.32 0.37 0.42
Hz
Hz
V_p−p
V_p−p
Demod Carrier Leakage
e_car1 No Signal Input measured with
3.58MHz BPF
−
− 0.2 V_p−p
e_car2 1.2V_p−p CW input measured with BPF − − 3.5 V_p−p
Color Killer Leakage
Color Control Leakage
e_K1 Bursy:Chroma = 1:1
e_c1 ^{Rainbow Color Bar}
−
−
1 _mV_rms
−
−
1 _mV_rms
Demod. DC Output Voltage Eo_(dc) No signal input, VCO free−running 6.4 7.0 7.6 V
Differential Demod
Output Voltage
∆E_o(dc) No signal input, VCO free−running
(B−Y) − (R−Y), (R−Y) − (G−Y),
−0.2 0 0.2 V
(G−Y) − (B−Y)