TDA8505 Datasheet, PDF (15/32 Pages) NXP Semiconductors – SECAM encoder

Philips Semiconductors
SECAM encoder
Preliminary specification
TDA8505
SYMBOL
PARAMETER
CONDITIONS
MIN.
Multiplexer control (pin 2; note 1)
V_IL
LOW level input voltage Y, −(R−Y)
0
and −(B−Y)
V_IH
HIGH level input voltage R, G
1
and B
I_I
input current
−
t_sw
switching time
−
Control input Y/Y+SYNC (pin 12)
V_IL
LOW level input voltage
blanking pin 5 active;
0
internal sync added to Y
V_IH
I_I(max)
HIGH level input voltage
maximum input current
blanking pin 5 inactive; 4
internal sync not added
to Y
−
XTAL/PLL and VIDENT input (pin 26)
V_IL
LOW level input voltage
PLL mode; vertical
0
identification off
V_IH
HIGH level input voltage
V_I
input voltage
crystal tuning; vertical 4
identification off
pin 26 connected to
−
pin 17; PLL tuning;
vertical identification on;
see Fig.4
I_I
input current
−
COLKIL input (pin 28)
V_IL
LOW level input voltage
inactive
0
V_IH
HIGH level input voltage
active
4
I_I(max)
maximum input current
−
FH/2 input (pin 4)
V_IL
LOW level input voltage
inactive
0
V_IH
HIGH level input voltage
active
4
I_I(max)
maximum input current
−
LF pre-emphasis (see Fig.3)
HF pre-emphasis and bandpass (see Figs 5 and 6)
FADJ input (pin 14) resistor value for correct adjustment; see Fig.1
input sensitivity
−
I_I(max)
maximum input current
−
TYP.
−
−
−
50
−
−
−
−
−
V₁₇
−
−
−
−
−
−
−
1.75
−
MAX. UNIT
0.4
V
5
V
−3
µA
−
ns
1
V
5
V
1
µA
1
V
5
V
−
V
−6
µA
1
V
5
V
1
µA
1
V
5
V
1
µA
−
kHz/mV
100
nA
July 1994
15