CS5317-KP View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS5317-KP Datasheet PDF : 32 Pages
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CDB5317
amplitude so that distortion products become neg-
ligible. This allows an accurate measurement of
the noise floor.
More complex analysis such as intermodulation
distortion measurements can be accomplished
with the addition of another sine-wave generator.
CIRCUIT DESCRIPTION
Figure 2 illustrates the CS5317 A/D converter IC
circuit connections. The chip operates off of ±5V.
These voltages are supplied from a power source
external to the evaluation board. Binding posts
are supplied on the board to connect the +5, -5,
and ground power lines. A good quality low rip-
ple, low noise supply will give the best
performance. The +5 V supply can also be used
for VL and should be connected between the VL
board jack and the power supply, as opposed to
connecting the VL jack straight to the +5V jack.
The +5V jack is the positive power source for the
CS5317 IC whereas the VL jack supplies power
to all the digital ICs. Care should be taken that
noise is not coupled between VL and +5V; how-
ever, supply noise is generally not a problem with
the CS5317 since the on-chip decimation filter
will remove any interference outside of its pass-
band. The +5 and -5 V supply lines are filtered on
TP6
VL
C5 C4
VL
D1 0.1 µF 10 µF
TP10
+5V
6.8v D3
C19 C17
C9 C8
0.22µF 10µF 0.1 µF
R7
10
1
2
VA+
VD+
+ C6
10 µF
C7
0.1 µF
CLKIN
AIN
GND
-5V
R10
10k
R2
200
TP8
R1*
51
CLKIN (fig.6)
R11
1.2k C18
0.01 µF
NPO
TP7
C14
0.1 µF
C16 C15
D2
TP9
6.8v 10µF 0.1 µF
17 PHDT
18 VCOIN
3
R5
DOE
DOUT 8
10 k
9 CLKIN
CLKOUT 5
6
DATA
RST
16
R9
10 k R6
U6
11 AIN
10 k
12 REFBUF
7
MODE
CLKG1
CLKG2 P2
CLKOR
CS5317
15
AGND
4
DGND
C13 C12 +
VA-
14
VD-
10
0.1 µF 10 µF
* Remove for logic gate CLKIN source
R8
10
DOUT (fig. 3)
CLKOUT (fig. 3)
DATA (fig. 3)
Figure 2. Analog-to-Digital Converter
DS27DB3
27
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