®

PCM1720

3

PIN ASSIGNMENTS

PIN

NAME

TYPE

FUNCTION

1

NC

—

No Connection.

2

SCKI

IN

3

TEST

OUT

Reserved for Factory Use.

4*

ML

IN

Latch Enable for Serial Control Data.

5*

MC

IN

Clock for Serial Control Data.

6*

MD

IN

Data Input for Serial Control.

7*

RSTB

IN

Reset Input. When this pin is low, the digital

filters and modulators are held in reset.

8

ZERO

OUT

Zero Data Flag. This pin is low when the data is

continuously zero for more than 65,535 cycles of

BCKIN.

OUT

Right Channel Analog Output.

10

AGND

PWR

Analog Ground.

11

PWR

Analog Power Supply (+5V).

12

OUT

Left Channel Analog Output.

13

CAP

—

Common Pin for Analog Output Amplifiers.

14*

BCKIN

IN

Bit Clock for Clocking in the Audio Data.

15*

DIN

IN

Serial Audio Data Input.

16*

LRCIN

IN

Left/Right Word Clock. Frequency is equal to fs.

17

GND

PWR

Ground.

18

NC

—

No Connection.

19

PWR

Digital Power Supply (+5V). Recommended con-

nection is to the analog power supply.

20

DGND

PWR

Digital Ground. Recommended connection is to

the digital ground plane.

* These pins include internal pull-up resistors.

PIN CONFIGURATION

TOP VIEW

SSOP

PACKAGE INFORMATION

PACKAGE DRAWING

PRODUCT

PACKAGE

PCM1720

20-Pin SSOP

334-1

NOTE: (1) For detailed drawing and dimension table, please see end of data

sheet, or Appendix C of Burr-Brown IC Data Book.

ABSOLUTE MAXIMUM RATINGS

Power Supply Voltage ....................................................................... +6.5V

Power Dissipation .......................................................................... 300mW

Operating Temperature Range ......................................... –25

°C to +85°C

Storage Temperature ...................................................... –55

°C to +125°C

Lead Temperature (soldering, 5s) .................................................. +260

°C

Thermal Resistance,

θ

NC

SCKI

TEST

ML

MC

MD

RSTB

ZERO

V

AGND

DGND

V

DD

NC

GND

LRCIN

DIN

BCKIN

CAP

V

V

CC

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

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.

Not Recommended For New Designs