SAA5231 Datasheet, PDF (5/13 Pages) NXP Semiconductors – Teletext video processor

Philips Semiconductors
Teletext video processor
Product specification
SAA5231
CHARACTERISTICS
V_CC = 12 V; T_amb = 25 °C with external components as shown in application circuits unless otherwise stated.
PARAMETER
SYMBOL MIN. TYP. MAX. UNIT
Supply (pin 16)
Supply voltage
Supply current
Video input and sync separator
Video input amplitude (sync to white)
(peak-to-peak value)
video input select level LOW (pin 2)
video input select level HIGH (pin 2)
Source impedance
Sync amplitude (peak-to-peak value)
Video input level select
Input voltage LOW
Input voltage HIGH
Input current LOW
Input current HIGH
Text composite sync input (TCS)
Input voltage LOW
Input voltage HIGH
Scan composite sync input (SCS)
Input voltage LOW
Input voltage HIGH
Select video sync from pin 1
Input current (pin 28)
at V₂₈ = 0 to 7 V
at V₂₈ = 10 V to V_CC
Video composite sync output (VCS)
Output voltage LOW
Output voltage HIGH
D.C. output current LOW
D.C. output current HIGH
Sync separator delay time
V_CC
10,8 12,0 13,2 V
I_CC
50
70
105 mA
V_27-13(p-p)
V_27-13(p-p)
Z_s
V_27-13(p-p)
V_2-13
V_2-13
I₂
I₂
V_28-13
V_28-13
V_28-13
V_28-13
0,7 1
1,75 2,5
−
−
0,1 −
1,4 V
3,5 V
250 Ω
1
V
0
−
2,0 −
0
−
0
−
0,8 V
5,5 V
−150 µA
1
mA
0
−
2,0 −
0,8 V
7,0 V
0
−
3,5 −
1,5 V
7,0 V
I₂₈
I₂₈
V_25-13
V_25-13
I₂₅
I₂₅
t_d
−40 −70 −100 µA
−5
−
+ 5 µA
0
−
0,4 V
2,4 −
5,5 V
−
−
0,5 mA
−
−
−1,5 mA
0,25 0,35 0,40 µs
November 1986
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