saa4700 NXP Semiconductors, saa4700 Datasheet - Page 6

• Manufacturer Part Number: saa4700
• Description: Vps Dataline Processor
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Preliminary specification
VPS dataline processor
SAA4700
0.2
handbook, full pagewidth
s
clock signal
to time base
data to controller
run in (word 1)
start code (word 2)
word 3
1
0
0
0 1
0
1
0
1
0
0
1
1
0
0
1
1
1
1
1
0
1
0
error
start code pulse
biphase error pulse
(ignored in word 2)
MEH097
Fig.3 Timing diagram of start code detection.
white level
handbook, full pagewidth
0.7 V
0.5 V 5%
1 V
sync level
12.5 1.5
48 s
MEH098
s
Fig.4 Timing diagram of dataline 16; modulation depth 71.4%.
March 1991
6