TDA8765 Datasheet, PDF (11/20 Pages) NXP Semiconductors – 10-bit high-speed Analog-to-Digital Converter ADC

Philips Semiconductors
10-bit high-speed Analog-to-Digital
Converter (ADC)
Preliminary specification
TDA8765
Table 1 Output coding with differential inputs (typical values to AGND); V_i(p-p) − V_i(p-p) = 2.0 V; V_ref = V_CCA − 1.825 V
CODE
V_i(p-p)
V_i(p-p)
IR
BINARY OUTPUTS
D9 TO D0
TWOS COMPLEMENT
OUTPUTS
D9 TO D0
Underflow <3.1
>4.1
0
0
3.1
4.1
1
1
−
−
1
↓
−
−
↓
511
3.6
3.6
1
↓
−
−
↓
1 022
−
−
1
1 023
4.1
3.1
1
Overflow
>4.1
<3.1
0
0000000000
0000000000
0000000001
↓
0111111111
↓
1111111110
1111111111
1111111111
1000000000
1 0 0 0 0 0 0 0 00
1000000001
↓
1111111111
↓
0111111110
0111111111
0111111111
Table 2 Mode selection
OTC
0
1
X⁽¹⁾
CE
D0 TO D9 AND IR
0
binary; active
0
twos complement; active
1
high impedance
Note
1. X = don’t care.
Table 3 Sample-and-hold selection
SH
1
active
0
inactive; tracking mode
SAMPLE-AND-HOLD
1999 Jan 06
11