ISL5314 Datasheet, PDF (3/17 Pages) Intersil Corporation – Direct Digital Synthesizer

ISL5314
Typical Application Circuit (Parallel Control Mode, Sinewave Generation)
SDATA, SSYNC, SCLK (IN PARALLEL CONTROL MODE,
3
SERIAL CONTROL CAN ALSO BE USED IF DESIRED.)
WRITE CLOCK (WR)
WRITE ENABLE
µPROCESSOR/
FPGA/CPLD
A3:A0 BUS ⁴
8 _{C7:C0 BUS}
CLOCK
SOURCE
f_CLK
DV_P-P
0.1µF
C2
C1
C0
ENOFR
DGND
CLK
DVDD
RESET
UPDATE
COMPOUT
REFLO
REFIO
0.1µF
48 47 46 45 44 43 42 41 40 39 3837
1
36
2
35
3
34
4
33
5
32
6
ISL5314
31
7
30
8
29
9
28
10
27
11
26
1213
14
15
16
17
18
19
20
21
22
23
25
24
A2
A3
PH0
PH1
SSYNC
DVDD
SCLK
DGND
DGND
SDATA
DVDD
DGND
DV_P-P
0.1µF
DV_P-P
0.1µF
+5V POWER SOURCE
3
R_SET
2kΩ
0.1µF
AV_P-P
0.1µF
50Ω 50Ω
0.1µF
AV_P-P
(IOUTA) ANALOG OUTPUT
FERRITE
BEAD
+
10µF
10µH
FERRITE
BEAD
+
10µF
10µH
0.1µF
DGND
DV_P-P (DIGITAL POWER PLANE)
1µF
0.1µF 1µF
AGND
AV_P-P (ANALOG POWER PLANE)
FN4901.3
January 19, 2010