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PCM66P Datasheet(Fiches technique) 3 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation.
Numéro de pièce PCM66P
Description  16-Bit CMOS Monolithic Audio DIGITAL-TO-ANALOG CONVERTER
Télécharger  7 Pages
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Fabricant  BURR-BROWN [Burr-Brown (TI)]
Site Internet  http://www.burr-brown.com
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®
PCM66P
3
PCM66P PIN ASSIGNMENTS
PIN
DESCRIPTION
MNEMONIC
1
Left/Right Clock
LRCLK
2
Word Clock
WDCLK
3
Clock Input
CLK
4
Data Input
DATA
5
No Connection
NC
6
Digital Common
D
COM
7
Analog Common
A
COM
8
Left Channel V
OUT
L CH Out
9
Output Common
V
COM
10
Right Channel V
OUT
R CH Out
11
Analog Supply
+V
CC
12
Analog Supply
+V
CC
13
Reference Decouple
C
REF
14
Reference Sense
V
REF SENSE
15
Reference Output
V
REF
16
Analog Supply
+V
CC
17
Analog Supply
+V
CC
18
Digital Supply
+V
CC
19
Single DAC Mode
SDM SEL
20
Left/Right DAC Select
LRDAC
MODEL
1–24
25-99
100+
PCM66P
$11.80
$10.40
$9.15
PCM66P-J
13.30
11.70
10.30
USA OEM PRICES
ORDERING INFORMATION
PCM66P
-X
Basic Model Number
P: Plastic
Performance Grade Code
ABSOLUTE MAXIMUM RATINGS
DC Supply Voltage ............................................................................
±10V
Input Voltage Range ........................................................... –3V to +5.25V
Power Dissipation ............................................................................ 50mW
Operating Temperature .................................................... –30
°C to +70°C
Storage Temperature ...................................................... –60
°C to +100°C
Lead Temperature (soldering, 10s) ............................................... +300
°C
PACKAGE INFORMATION(1)
PACKAGE DRAWING
MODEL
PACKAGE
NUMBER
PCM66P
20-Pin SOIC
248
PCM66P, J
20-Pin SOIC
248
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
SERIAL
LEFT
RIGHT
DATA WORD
CHANNEL
CHANNEL
SDM SEL
LRDAC
LRCLCK
WDCLK
INPUT
OUTPUT
OUTPUT
0
X
0
0
Right
Hold
Hold
0
X
0
1
Right
Integrate
Hold
0
X
1
0
Left
Hold
Hold
0
X
1
1
Left
Hold
Integrate
1
0
0
0
Inhibited
V
COM
Hold
1
0
0
1
Inhibited
V
COM
Hold
1
0
1
0
Left
V
COM
Integrate
1
0
1
1
Left
V
COM
Integrate
1
1
0
0
Right
V
COM
Hold
1
1
0
1
Right
V
COM
Hold
1
1
1
0
Inhibited
V
COM
Integrate
1
1
1
1
Inhibited
V
COM
Integrate
TABLE I. PCM66P Logic Truth Table.
NOTE: Positive edge of CLK (P3) latches LRCLK (P1), WDCLK (P2), and DATA (P4).
PIN FUNCTIONS
THEORY OF OPERATION
The PCM66P is a dual output, 16-bit CMOS digital-to-analog
audio converter. The PCM66P, complete with internal refer-
ence, has two glitch-free voltage outputs and requires only a
single +5V power supply. Output modes using either one or two
channels per DAC are user selectable. The PCM66P accepts a
serial data input format that is compatible with other Burr-
Brown PCM products such as the industry standard PCM56P.
ONE DAC TWO-CHANNEL OPERATION
Normally, the PCM66P is operated with a continuous clock
input in a two-channel output mode. This mode is selected when
SDM SEL is held low (single DAC mode select). Refer to the
truth table shown by Table I for exact control logic relation-
ships. Data for left and right channel output is loaded
alternately into the PCM66P while the control logic
switches the left and right output amplifiers between the
appropriate integrate and hold modes. Data word latch-
ing is controlled by WDCLK (word clock) and channel
selection is made by LRCLK (left/right clock). Figure 1
shows the timing for the single DAC two-channel mode
of operation. The block diagram in Figure 2 shows how
a single DAC output provides switched output to both
integrate and hold amplifiers. Output between left and
right channels in this mode is not in phase. See Figure 3
for proper connection of the PCM66P in the two-channel
DAC mode.




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