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TDA8767 データシートの表示(PDF) - Philips Electronics

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TDA8767 Datasheet PDF : 20 Pages
First Prev 11 12 13 14 15 16 17 18 19 20
Philips Semiconductors
12-bit high-speed Analog-to-Digital
Converter (ADC)
Preliminary specification
TDA8767
handbook, full pagewidth
220 nF
IN
50
R1
VCCA
(2) R2
50
4.7
µF
VI
VI
50
n.c.
5V
10
nF
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
CLK(1)
n.c.
44 43 42 41 40 39 38 37 36 35 34
1
33
2
32
3
31
4
30
5
29
6
TDA8767H
28
7
27
8
26
9
25
10
24
11
23
12 13 14 15 16 17 18 19 20 21 22
5V
100 nF
D0 (LSB)
D1
D2
D3
D4
D5
D6
D7
D8
D9
MBH146
n.c. n.c. n.c. n.c.
5V
100 nF
IR D10
D11
(MSB)
chip select input OE
output format select TC
The analog, digital and output supplies should be separated and decoupled.
(1) At power-up a high level clock must be provided within less than 1 µs or a pull-up resistor must be connected between CLK and VCCD.
(2) R1, and R2 must be determined in order to obtain a voltage of 2.5 V on VI and VI; see Table 1. To ensure a sufficient analog input stability, the
minimum current into these resistors must be about 1 mA.
(3) Vref must be decoupled to VCCA.
Fig.7 Application diagram (single input mode).
1999 Feb 16
14

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