TDA8376 Datasheet, PDF (25/44 Pages) NXP Semiconductors – I2C-bus controlled PAL/NTSC TV processors

Philips Semiconductors
I²C-bus controlled PAL/NTSC TV processors
Objective specification
TDA8376; TDA8376A
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
DEMODULATORS (PINS 29 AND 30)
V_30(p-p)
−(R−Y) output voltage amplitude
(peak-to-peak value)
note 21
V_29(p-p)
−(B−Y) output voltage amplitude
(peak-to-peak value)
note 21
G
gain ratio between both
demodulators G(B−Y) and G(R−Y)
∆V
spread of voltage amplitude ratio note 2
PAL/NTSC
Z_o
output impedance −(R−Y)/−(B−Y) note 2
output
B
bandwidth of demodulators
−3 dB; notes 7 and 21
V_29,30(p-p)
residual carrier output
(peak-to-peak value)
V_30(p-p)
H/2 ripple at −(R−Y) output
(peak-to-peak value)
f = f_osc; −(R−Y) output
f = f_osc; −(B−Y) output
f = 2f_osc; −(R−Y) output
f = 2f_osc; −(B−Y) output
∆V_o/∆T
variation of output voltage amplitude note 2
with temperature
∆V_o/∆V_P
variation of output voltage amplitude note 2
with supply voltage
ϕ_e
phase error in the demodulated
signals
−
0.525 −
V
−
0.675 −
V
1.60 1.78
1.96
−1
−
+1
dB
−
500
−
Ω
−
650
−
kHz
−
−
5
mV
−
−
5
mV
−
−
5
mV
−
−
5
mV
−
−
25
mV
−
0.1
−
%/K
−
−
±0.1 dB
−
−
±5
deg
COLOUR DIFFERENCE MATRICES IN CONTROL CIRCUIT
PAL or (SECAM mode with TDA8395); −(R−Y) and −(B−Y) not affected
(G−Y)/(R−Y) ratio of demodulated signals
(G−Y)/(B−Y) ratio of demodulated signals
−
−0.51 −
±10%
−
−0.19 −
±25%
NTSC mode; the colour-difference matrix results in the following signals (nominal hue setting)
−(B−Y)
−(B−Y) signal
−(B−Y)
−(R−Y)
−(R−Y) signal
1.39(R−Y) − 0.07(B−Y)
−(G−Y)
−(G−Y) signal
−0.46(R−Y) − 0.15(B−Y)
1996 Jan 26
25