SAA7127 PHILIPS [NXP Semiconductors], SAA7127 Datasheet - Page 34

• Manufacturer Part Number: SAA7127
• Description: Digital video encoder
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Product specification
Digital video encoder
SAA7126H; SAA7127H
Analog output voltages
The analog output voltages are dependent on the open-loop voltage of the operational amplifiers for full-scale conversion
(typical value 1.375 V), the internal series resistor (typical value 2 ), the external series resistor and the external load
impedance.
The digital output signals in front of the DACs under nominal conditions occupy different conversion ranges, as indicated
100
in Table 48 for a
colour bar signal.
100
Values for the external series resistors result in a 75
load.
Table 48 Digital output signals conversion range
CONVERSION RANGE (peak-to-peak)
CVBS, SYNC
Y (VBS)
RGB (Y)
TIP-TO-PEAK CARRIER
SYNC TIP-TO-WHITE
BLACK-TO-WHITE AT GDY = GDC = 6
(digits)
(digits)
(digits)
1016
881
712
1999 May 31
34