TDA8771A Datasheet, PDF (8/20 Pages) NXP Semiconductors – Triple 8-bit video Digital-to-Analog Converter DAC

Philips Semiconductors
Triple 8-bit video Digital-to-Analog
Converter (DAC)
Product specification
TDA8771A
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Transfer function (f_clk = 35 MHz)
INL
DNL
α_ct
integral non-linearity
differential non-linearity
crosstalk DAC to DAC
DAC to DAC matching
ramp input
ramp input
−
0.5
±1
LSB
−
0.25
±0.5
LSB
−50
−
−
dB
−
1.0
2.0
%
Switching characteristics (for 1 kΩ output load); see Fig.4
t_d
input to 50% output delay time full-scale change
−
12
−
ns
t_s1
settling time
10% to 90% of
−
15
−
ns
full-scale change
t_s2
settling time
to ±1 LSB
−
50
−
ns
Output transients (glitches)
V_g
area for 1 LSB change
−
1
−
LSB⋅ns
Notes
1. Minimum and maximum data of current and power consumption are measured in worse case conditions: for
minimum data, all digital inputs are at logic level 0 while for maximum data, all digital inputs are at logic level 1.
2. V_O is directly proportional to V_REF.
Table 1 Input coding and DAC output voltages (typical values)
BINARY INPUT DATA
(SYNC = BLANK = 0)
0000 0000
0000 0001
.... ....
1000 0000
.... ....
1111 1110
1111 1111
CODE
0
1
.
128
.
254
255
DAC OUTPUT VOLTAGES (V)
OUTB, OUTR, OUTG
R_L = 1 kΩ
0.262
0.273
.
1.731
.
3.188
3.200
1996 Jan 25
8