TDA8315T Datasheet, PDF (7/16 Pages) NXP Semiconductors – Integrated NTSC decoder and sync processor

Philips Semiconductors
Integrated NTSC decoder
and sync processor
Preliminary specification
TDA8315T
SYMBOL
PARAMETER
CHROMINANCE BANDPASS CIRCUIT
f_c
QBP
centre frequency
bandpass quality factor
Y DELAY LINE
t_d
delay time
B
bandwidth of internal delay line
Y OUTPUT SIGNAL (PIN19)
V_19(p-p)
output signal amplitude
(peak-to-peak value)
Z_O
output impedance
V₁₉
top sync level
S/N
signal-to-noise ratio
Colour decoder
CHROMINANCE AMPLIFIER
ACC_cr
∆V
ACC control range
change in amplitude of the output signals
over the ACC range
THR_on
HYS_off
threshold colour killer ON
hysteresis colour killer OFF
strong input signal
noisy input signal
ACL CIRCUIT
chrominance burst ratio at which the ACL
starts to operate
REFERENCE PART
Phase-locked loop; note 7 (filter connected to pin 22)
f_CR
catching range
∆ϕ
phase shift for a ±400 Hz deviation of the
oscillator frequency
Oscillator (pin 24)
TC_osc
∆f_osc
temperature coefficient of f_osc
f_osc deviation with respect to V_P
R_I
input resistance
C_I
input capacitance
HUE CONTROL INPUT (PIN 18)
HUE_cr
hue control range
SATURATION CONTROL INPUT (PIN 16)
SAT_cr
saturation control range
CONDITIONS MIN.
−
−
note 2
−
note 2
8
note 1
−
−
−
notes 2 and 5 −
note 6
24
−
tbf
note 2
S/N ≥ 40 dB −
−
2.3
300
note 7
−
note 2
−
note 2;
−
V_P = 8 V±10%
note 4
−
note 4
−
see also Fig.3 ±35
see also Fig.4 52
TYP.
3.58
3
390
−
2.27
350
2.85
56
−
−
−31
+3
+1
−
500
−
2.0
−
1.5
−
±45
−
MAX. UNIT
−
MHz
−
−
ns
−
MHz
−
V
−
Ω
−
V
−
dB
−
dB
2
dB
tbf
dB
−
dB
−
dB
2.7
−
Hz
2
deg
2.5
Hz/K
250
Hz
−
kΩ
10
pF
−
deg
−
dB
September 1994
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