Philips TDA8767 Datasheet page 10

Philips Semiconductors
12-bit high-speed Analog-to-Digital
Converter (ADC)
Table 1 Output coding with differential inputs (typical values to AGND); V
CODE V
I
underflow <2.0
0 2.0
1
2047 2.5
4094
4095 3.0
overflow >3.0
Table 2 Output coding with single input (typical values to AGND); V
CODE
underflow <1.5
0
1
2047
4094
4095
overflow >3.5
Table 3 Mode selection
TC
0
1
(1)
X
Note
1. Where: X = don't care.
Table 4 Sample-and-hold selection
SH
1
0
1999 Feb 16
V IR
I
>3.0 0
3.0 1
1
2.5 1
1
2.0 1
<2.0 0
V IR
I
0
1.5 1
1
2.5 1
1
3.5 1
0
OE
0
0
1
active
inactive; tracking mode
BINARY OUTPUTS
D11 to D0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 01
0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 0
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1
= 2.0 V (p-p); V
FS
BINARY OUTPUTS
D11 to D0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 01
0 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 0
1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1
binary; active
two's complement; active
high impedance
SAMPLE-AND-HOLD
10
Preliminary specification
V = 2.0 V; V
I(p-p) I(p-p) ref
TWO'S COMPLEMENT
OUTPUTS
D11 to D0
1 0 0 0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 0
0 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 1
= V
ref CCA
TWO'S COMPLEMENT
OUTPUTS
D11 to D0
1 0 0 0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0 0 0 0
1 0 0 0 0 0 0 0 0 0 0 1
1 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 0
0 1 1 1 1 1 1 1 1 1 1 1
0 1 1 1 1 1 1 1 1 1 1 1
D0 to D11 and IR
TDA8767
= V 2 V
CCA
2 V