TDA8765 Datasheet, PDF (14/20 Pages) NXP Semiconductors – 10-bit high-speed Analog-to-Digital Converter ADC

Philips Semiconductors
10-bit high-speed Analog-to-Digital
Converter (ADC)
APPLICATION INFORMATION
Preliminary specification
TDA8765
220 nF
handbook, full pagewidth
IN
100 Ω
4.7 µF
1:1
VI
100 Ω
VI
VCCA
R1
n.c.
10 nF
5V
R2 _{100 nF}
n.c.
n.c.
n.c.
100 nF ^n.c.
5V
100 nF ⁽³⁾
Vref
5 V SH 5 V
100 nF
mode
100 nF
44 43 42 41 40 39 38 37 36 35 34
1
33
2
32
3
31
4
30
5
29
6
TDA8765
28
7
27
8
26
9
25
10
24
11
23
12 13 14 15 16 17 18 19 20 21 22
CLK
(1)
CLK
5V
100 nF
n.c
n.c.
D0 (LSB)
D1
D2
D3
D4
D5
D6
D7
n.c. _n.c. n.c.
5V
n.c.
100 nF
IR D8
D9
(MSB)
chip select input
MGK802
output format select
The analog, digital and output supplies should be separated and decoupled.
(1) Single-ended clock signals can be applied if required.
(2) R1 and R2 must be determined in order to obtain a middle voltage of 3.6 V; see common mode input voltage.
In addition, the minimum current into these resistors should be about 1 mA in order to ensure a sufficient analog input stability.
(3) V_ref must be decoupled to V_CCA.
Fig.7 Application diagram.
1999 Jan 06
14