TDA8315T Datasheet, PDF (8/16 Pages) NXP Semiconductors – Integrated NTSC decoder and sync processor

Philips Semiconductors
Integrated NTSC decoder
and sync processor
Preliminary specification
TDA8315T
SYMBOL
PARAMETER
CONDITIONS MIN.
DEMODULATOR OUTPUTS (PINS 20 AND 21)
B
bandwidth of demodulators
∆V_O/∆T
change of output signal amplitude with
temperature
∆V_O/∆V_P
change of output signal amplitude with
supply voltage
G
gain ratio of demodulator G(−U)/G(−V)
demodulator angle
pin 8 LOW
pin 8 HIGH
V_21(p-p)
−U output signal amplitude at nominal
saturation (peak-to-peak value)
V_20(p-p)
−V output signal amplitude at nominal
saturation (peak-to-peak value)
Z_O
output impedance (−U)/(−V) output
V_O
DC output voltage
DEMODULATION ANGLE SWITCH INPUT (PIN 8)
V₈
input voltage for 90° angle
V₈
input voltage for 110° angle
SUBCARRIER OUTPUT SIGNAL (PIN 17)
V_17(p-p)
output signal amplitude
(peak-to-peak value)
Z_O
output impedance
V_O
DC output voltage
Horizontal and vertical synchronization circuits
−3 dB; note 8 −
note 2
−
note 2
−
0.9
85
105
note 9
−
note 9
−
−
−
−
V_P − 1
−
−
−
SYNC VIDEO INPUT (PIN 13)
V₁₃
sync pulse amplitude
SL
slicing level
note 4
50
note 10
−
VERTICAL SYNC
t_W
width of the vertical sync pulse without sync note 11
22
instability
HORIZONTAL OSCILLATOR
f_fr
∆f_fr
∆f_osc/∆V_P
free-running frequency
spread on free running frequency
frequency variation with respect to the
supply voltage
∆f_osc/∆T frequency variation with temperature
−
−
V_P = 8 V±10%; −
note 2
note 2
−
TYP.
650
0.1
−
1.0
90
110
1.5
1.5
−
3
−
−
300
250
1.6
300
50
−
15 734
−
0.2
−
MAX. UNIT
−
kHz
−
%/K
±0.1
dB
1.1
95
deg
115
deg
−
V
−
V
500
Ω
−
V
1
V
−
V
−
mV
−
Ω
−
V
−
mV
−
%
−
µs
−
Hz
±2
%
0.5
%
tbf
Hz/K
September 1994
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