
4
PCM1740
PIN
NAME
I/O
FUNCTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
XT1
PGND
XTUN
V
PP
MCKO
AD0
AD1
SCL
SDA
RST
V
OUT
R
AGND
V
CC
V
OUT
L
V
COM
ZERO
BCK
DATA
LRCK
—
—
IN
—
27MHz Crystal connection.
PLL and VCXO ground.
VCXO tune, tuning voltage range from 0V to 3V.
PLL and VCXO power supply, +5V.
Buffered clock output of VCXO.
Device address pin for I
2
C-BUS.
(1)
Device address pin for I
2
C-BUS.
(1)
Bit clock input for I
2
C-BUS interface.
Serial data for I
2
C-BUS interface.
Reset, active LOW.
(2)
Right-channel analog voltage output.
Analog ground.
Analog power supply, +5V.
Left-channel analog voltage output.
DC common-mode voltage output.
Zero flag output, active LOW.
(3)
Bit clock input for serial audio data.
(1)
Serial audio data input.
(1)
Left and right word clock, equal to the sampling
rate (f
S
).
(1)
Reserved must be open.
System clock output, 256/384 f
S
.
Digital power supply, +5V.
Digital ground.
27MHz Crystal connection.
OUT
IN
IN
IN
IN/OUT
IN
OUT
—
—
OUT
—
OUT
IN
IN
IN
20
21
22
23
24
RSV
SCKO
V
DD
DGND
XT2
—
OUT
—
—
—
NOTES: (1) Schmitt trigger input. (2) Schmitt trigger input with internal
pull-up resistor. (3) Open drain output.
Power Supply Voltage
(1)
...................................................................+6.5V
Supply Voltage Differences
(2)
...........................................................
±
0.1V
GND Voltage Differences
(3)
..............................................................
±
0.1V
Digital Input Voltage ................................................. –0.3V to (V
DD
+ 0.3V)
Analog Input Voltage................................................ –0.3V to (V
+ 0.3V)
Input Current (any pins except supplies) ........................................
±
10mA
Operating Temperature Range ......................................... –25
°
C to +85
°
C
Storage Temperature ...................................................... –55
°
C to +125
°
C
Junction Temperature .................................................................... +150
°
C
Lead Temperature (soldering, 5s).................................................. +260
°
C
Package Temperature (IR reflow, peak, 10s) ................................ +235
°
C
NOTES: (1) V
, V
, V
. (2) Among V
, V
, V
. (3) Among AGND, DGND,
and PGND. Stresses above those listed under Absolute Maximum Ratings may
cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
PIN ASSIGNMENTS
PIN CONFIGURATION
Top View
SSOP
ABSOLUTE MAXIMUM RATINGS
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
PACKAGE
DRAWING
NUMBER
SPECIFIED
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
(1)
TRANSPORT
MEDIA
PRODUCT
PACKAGE
PCM1740E
SSOP-24
"
338
"
–25
°
C to +85
°
C
"
PCM1740E
PCM1740E
PCM1740E
PCM1740E/2K
Rails
"
Tape and Reel
NOTE: (1) Models with a slash (/) are available only in Tape and Reel in the quantities indicated (e.g., /2K indicates 2000 devices per reel). Ordering 2000 pieces
of “PCM1740E/2K” will get a single 2000-piece Tape and Reel.
PACKAGE/ORDERING INFORMATION
XT1
PGND
XTUN
V
PP
MCKO
AD0
AD1
SCL
SDA
RST
V
OUT
R
AGND
PCM1740
XT2
DGND
V
DD
SCKO
RSV
LRCK
DATA
BCK
ZERO
V
COM
V
OUT
L
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13