Datasheet


SLES014B − OCTOBER 2001 − REVISED AUGUST 2002
20
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APPLICATION INFORMATION
DATA1
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
PLL1700
L
R
LF
RF
RS
LS
CTR
SUB
XT1
Buffer
Master Clock
+
+
+
+
+
+
+
+
Down Mix
ANALOG SECTIONDIGITAL SECTION
PCM1606
DATA2
DATA3
FMT1
FMT0
ZEROA
AGND
V
OUT
5
V
OUT
6
V
OUT
1
SCKI
V
OUT
4
BCK
LRCK
DEMP1
DEMP0
V
OUT
3
V
OUT
2
V
COM
V
CC
µC/µP
{
Audio DSP
or
Decoder
R
S
w
R
S
R
S
R
S
R
S
R
S
10 µF
10 µF
10 µF
10 µF
10 µF
10 µF
10 µF
10 µF0.1 µF
SCKO3
}
Output
Low-Pass
Filters
W
27-MHz
5-V Analog
†
Format and de-emphasis control can be provided by the DSP/decoder.
‡
Actual clock output used is determined by the application.
§
R
S
= 22 Ω to 100 Ω
¶
See the Application Information section of this data sheet for more information.
Figure 29. Typical Application Diagram
power supply and grounding
The PCM1606 requires a 5-V supply. The 5-V supply is used to power the DAC analog output-filter circuitry, the
digital filter, and the serial interface circuitry.
Two capacitors are required for supply bypassing, as shown in Figure 29. These capacitors should be located
as close as possible to the PCM1606 package. The 10-µF capacitors should be tantalum or aluminum
electrolytic, while the 0.1-µF capacitors are ceramic (X7R type is recommended for surface-mount
applications).