PCM1740E datasheet, PDF - EEWORLD Datasheet

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®

PCM

PCM1740

174

0

For most current data sheet and other product

information, visit www.burr-brown.com

Stereo Audio

DIGITAL-TO-ANALOG CONVERTER

with VCXO and PLL

TM

FEATURES

q

COMPLETE DELTA-SIGMA STEREO DAC

q

VOLTAGE-CONTROLLED CRYSTAL

OSCILLATOR: 27MHz

±

150ppm Output with

0V to 3V Input

q

PROGRAMMABLE PLL

256f

S

or 384f

S

Audio System Clock Output

q

DYNAMIC PERFORMANCE:

Dynamic Range: 94dB

SNR: 94dB

THD+N: –89dB

q

SAMPLING FREQUENCIES:

16kHz, 22.05kHz, 24kHz

32kHz, 44.1kHz, 48kHz

64kHz, 88.2kHz, 96kHz

q

SERIAL AUDIO INTERFACE:

Standard or I

2

S Data Formats

16-, 20-, or 24-Bit Data

q

I

2

C-BUS

®

INTERFACE FOR CONTROL

REGISTERS

(1)

:

Slave Receiver Operation

7-Bit Addressing

Standard Transfer Rate (up to 100kbps)

q

PROGRAMMABLE CONTROLS:

Digital Attenuation (256 steps)

Soft Mute

Infinite Zero Detect Mute

De-Emphasis (32kHz, 44.1kHz, 48kHz)

DAC Output Mode

q

SINGLE +5V SUPPLY

q

SMALL SSOP-24 PACKAGE

NOTE: (1) I

2

C-Bus

®

is a registered trademark of Philips Semiconductor.

DESCRIPTION

The PCM1740 is a complete stereo audio digital-to-analog

converter with on-chip PLL and VCXO. The PCM1740 is

designed specifically for set-top box applications requiring

high-quality audio playback, a precision tuned 27MHz mas-

ter clock source, and support for multiple audio-sampling

frequencies.

The stereo D/A converter utilizes multi-bit, delta-sigma

architecture, which includes an 8x interpolation filter, third-

order noise shaping, 5-level amplitude quantization, and an

analog low-pass filter. The PCM1740 includes a number of

user-programmable functions, which are accessed via a

standard I

2

C-Bus interface.

APPLICATIONS

q

SET-TOP BOXES

q

DIGITAL BROADCAST RECEIVERS

BCK

LRCK

DATA

PCM

Audio

I/F

8x

Oversampling

Digital Filter

and

Sub-Functions

Process

DAC

(L)

DAC

(R)

V

OUT

L

Low-Pass

Filter

and Amp

V

COM

V

OUT

R

ZERO

SCL

SDA

AD1

AD0

XTUN

XT1

27MHz

Crystal

XT2

RST

I

2

C

I/F

and

REGs

Counter N

Counter M

VCXO

Phase

Detector

LPF

VCO

SCKO

(256f

S

/ 384f

S

)

MCKO

(27MHz)

Reset

Power Supply

V

PP

PGND V

CC

AGND V

DD

DGND

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

®

PDS-1551A

1

Printed in U.S.A.

PCM1740

February, 2000

SPECIFICATIONS

All specifications at T

A

= +25°C, V

CC

= V

DD

= V

PP

= 5.0V, f

S

= 44.1kHz, system clock = 384f

S

, 16-bit data, unless otherwise noted.

PCM1740E

PARAMETER

RESOLUTION

DATA FORMAT

Audio Interface Format

Audio Data Bit Length

Audio Data Format

Sampling Frequency (f

S

)

CONDITIONS

MIN

TYP

16

Standard/I

2

S Selectable

16/20/24 Selectable

MSB First, Two’s Binary Complement

32

44.1

48

16

22.05

24

64

88.2

96

256f

S

/384f

S

TTL Compatible

2.0

V

IH

= V

DD

V

IL

= 0V

V

IL

= 0V

I

OH

= –2mA

I

OL

= 4mA

I

OL

= 2mA

3.0

–0.3

0

10% to 90% of V

DD

27MHz, Fundamental Crystal

27.0000

±30

0

XTUN = 1.3V

XTUN = 0V – 3V

10pF Load

Standard Deviation

20% to 80% V

DD

, 10pF Load

80% to 20% V

DD

, 10pF Load

60

27.0000

±50

300

45

100

4

3.0

MHz

ppm

V

kΩ

MHz

ppm

%

ps

ns

µs

ms

MHz

%

ps

ns

ms

–10

0.8

±10

–120

V

DD

– 0.5V

0.5

VDC

µA

VDC

V

ns

µA

pF

MAX

UNITS

Bits

kHz

Standard (f

S

)

Half (f

S

)

Double (f

S

)

Internal System Clock Frequency

DIGITAL INPUT/OUTPUT

Logic Family

High Level Input Voltage: V

IH(1), (2)

Low Level Input Voltage: V

IL(1), (2)

High Level Input Current: I

IH(1), (2)

Low Level Input Current:

I

IL(1)

I

IL(2)

High Level Output Voltage: V

OH(3)

Low Level Output Voltage:

V

OH(3)

V

OL(4)

DIGITAL INPUT/OUTPUT of I

2

C-BUS INTERFACE

High Level Input Voltage: V

IH(5)

Low Level Input Voltage: V

IL(5)

Low Level Output Voltage: V

OL(6)

Output Fall Time: t

OF (7)

Input Logic Current: I

I(8)

Capacitance for each I/O pin: C

I(5)

VCXO CHARACTERISTICS (MCKO)

Crystal Clock Frequency

(9)

Crystal Clock Accuracy

(9)

XTUN Tuning Voltage Range

(10)

XTUN Input Impedance

(10)

Output Clock Frequency

Output Clock Accuracy

VCXO Tuning Range

Output Clock Duty Cycle

Output Clock Jitter

Output Rise Time

Output Fall Time

Response Time

(11)

Power Up Time

(12)

PLL AC CHARACTERISTICS (SCKO)

Output Clock Frequency

Output Clock Duty Cycle

Output Clock Jitter

Output Rise Time

Output Fall Time

Frequency Transition Time

(13)

Power Up Time

(14)

DYNAMIC PERFORMANCE

(15)

THD+N:

V

OUT

= 0dB

V

OUT

= –60dB

Dynamic Range

Signal-to-Noise Ratio

(16)

Channel Separation

Level Linearity Error

f

S

= 44.1kHz

f

S

= 96kHz

f

S

= 44.1kHz

f

S

= 96kHz

f

S

= 44.1kHz, EIAJ, A-Weighted

f

S

= 96kHz, A-Weighted

f

S

= 44.1kHz, EIAJ, A-weighted

f

S

= 96kHz, A-weighted

f

S

= 44.1kHz

f

S

= 96kHz

V

OUT

= –90dB

Input Logic

1.5

0.4

250

10

35

55

10

5

MCKO = 27.0MHz

10pF Load

Standard Deviation

20% to 80% V

DD

, 10pF Load

80% to 20% V

DD

, 10pF Load

4.096

40

36.864

60

50

150

4

15

20

30

90

88

0.0035

0.007

0.0035

0.007

94

90

94

90

92

88

±1.0

0.01

%

dB

®

PCM1740

2

SPECIFICATIONS

All specifications at T

A

= +25°C, V

CC

= V

DD

= V

PP

= 5.0V, f

S

= 44.1kHz, system clock = 384f

S

, 16-bit data, unless otherwise noted.

PCM1740E

PARAMETER

DC ACCURACY

Gain Error

Gain Mismatch, Channel-to-Channel

Bipolar Zero Error

ANALOG OUTPUT

Voltage Range

Center Voltage

Load Impedance

DIGITAL FILTER PERFORMANCE

Passband

Stopband

Passband Ripple

Stopband Attenuation

De-Emphasis Error

Delay Time

ANALOG FILTER PERFORMANCE

Frequency Response

POWER SUPPLY REQUIREMENTS

Voltage Range

Supply Current, I

DD

+ I

CC

+ I

PP

Power Dissipation

TEMPERATURE RANGE

Operation

Storage

Thermal Resistance,

θ

JA

20Hz to 20kHz

20Hz to 40kHz

V

DD

, V

CC

, V

PP

V

DD

= V

CC

= V

PP

= +5V

V

DD

= V

CC

= V

PP

= +5V

+4.5

Full Scale (0dB)

AC Coupled

5

0.445 f

S

0.555 f

S

±0.17

–35

–0.2

11.125 / f

S

–0.16

–0.6

+5

25

125

+5.5

30

150

+85

+125

100

+0.55

CONDITIONS

MIN

TYP

±1.0

0.62 V

CC

0.5 V

CC

MAX

±3.0

UNITS

% of FSR

Vp-p

VDC

kΩ

Hz

dB

sec

dB

VDC

mA

mW

°C

°C/W

–25

–55

NOTES: (1) Pins 6, 7, 18, 19: AD0, AD1, BCK, DATA, LRCK (Schmitt trigger input). (2) Pin 10: RST (Schmitt trigger input with internal pull-up resistor). (3) Pins

5, 21: MCKO, SCKO. (4) Pin 16: ZERO (open drain output). (5) Pins 8, 9: SCL, SDA. (6) Pin 9: SDA (open drain output, I

OL

= 3mA). (7) Pin 9: SDA (from V

IHMIN

to V

ILMAX

with a bus capacitance from 10pF to 400pF). (8) Pins 8, 9: SCL, SDA (input current each I/O pin with an input voltage between 0.1V

DD

and 0.9V

DD

).

(9) This characteristic is the requirement for crystal oscillator. (10) Pin 3: XTUN. (11) The maximum response time when the XTUN is changed. (12) The maximum

delay time from power on to oscillation. (13) The maximum lock up time when the PLL frequency is changed. (14) The maximum delay time from power on to lock

up. (15) Dynamic performance specifications are tested with a 20kHz low-pass filter using a Shibasoku distortion analyzer 725°C with 30kHz LPF, 400Hz HPF,

Average-Mode. (16) SNR is tested with infinite zero detection circuit disabled.

The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes

no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change

without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant

any BURR-BROWN product for use in life support devices and/or systems.

®

3

PCM1740

PIN CONFIGURATION

Top View

SSOP

PIN ASSIGNMENTS

1

2

NAME

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

RSV

SCKO

V

DD

DGND

XT2

I/O

—

IN

—

OUT

IN

OUT

—

OUT

—

OUT

IN

—

OUT

—

FUNCTION

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.

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.

XT1

PGND

XTUN

V

PP

MCKO

AD0

AD1

SCL

SDA

1

2

3

4

5

6

PCM1740

7

8

9

24

23

22

21

20

19

18

17

16

15

14

13

XT2

DGND

V

DD

SCKO

RSV

LRCK

DATA

BCK

ZERO

V

COM

V

OUT

L

V

CC

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

IN/OUT Serial data for I

2

C-BUS interface.

RST 10

V

OUT

R 11

AGND 12

NOTES: (1) Schmitt trigger input. (2) Schmitt trigger input with internal

pull-up resistor. (3) Open drain output.

ABSOLUTE MAXIMUM RATINGS

Power Supply

................................................................... +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

CC

+ 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

CC

, V

DD

, V

PP

. (2) Among V

CC

, V

DD

, V

PP

. (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.

Voltage

(1)

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/ORDERING INFORMATION

PACKAGE

DRAWING

NUMBER

338

"

SPECIFIED

TEMPERATURE

RANGE

–25°C to +85°C

"

PACKAGE

MARKING

PCM1740E

ORDERING

NUMBER

(1)

PCM1740E

PCM1740E/2K

TRANSPORT

MEDIA

Rails

Tape and Reel

PRODUCT

PCM1740E

"

PACKAGE

SSOP-24

"

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.

®

PCM1740

4

TYPICAL PERFORMANCE CURVES

At T

A

= +25°C, V

CC

= V

DD

= +5V, f

S

= 44.1kHz, F

SCKO

= 384f

S

= 16.9344MHz, and 16-bit data, unless otherwise noted.

FREQUENCY RESPONSE

(De-emphasis OFF, f

S

= 44.1kHz)

0

PASSBAND RIPPLE

(De-emphasis OFF, f

S

= 44.1kHz)

–20

–0.2

Level (dB)

–40

Level (dB)

–0.4

–60

–0.6

–80

–0.8

–100

0

1

2

f

S

3

4

–1

0

0.1

0.2

f

S

0.3

0.4

0.5

DE-EMPHASIS FREQUENCY RESPONSE (3kHz)

0

–2

–4

–6

–8

–10

–12

0

5k

10k

15k

20k

25k

Frequency (Hz)

DE-EMPHASIS FREQUENCY RESPONSE (44.1kHz)

0

–2

–4

–6

–8

–10

–12

0

5k

10k

15k

20k

25k

Frequency (Hz)

DE-EMPHASIS FREQUENCY RESPONSE (48kHz)

0

–2

–4

–6

–8

–10

–12

0

5k

10k

15k

20k

25k

Frequency (Hz)

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

0

Level (dB)

DE-EMPHASIS ERROR (3kHz)

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

0

3628

7256

Frequency (Hz)

DE-EMPHASIS ERROR (44.1kHz)

0.6

0.4

0.2

0

–0.2

–0.4

–0.6

0

4999.8375

9999.675

Frequency (Hz)

DE-EMPHASIS ERROR (48kHz)

Error (dB)

Level (dB)

10884

14512

Level (dB)

14999.5125

19999.35

5442

10884

Frequency (Hz)

16326

21768

®

5

PCM1740

Parameter Name	Attribute value
Is it Rohs certified?	incompatible
Maker	Burr-Brown
package instruction	SSOP-24
Reach Compliance Code	unknow
Other features	WITH PROGRAMMABLE PLL
Converter type	D/A CONVERTER
Enter bit code	2\'S COMPLEMENT BINARY
Input format	SERIAL
JESD-30 code	R-PDSO-G24
JESD-609 code	e0
Number of digits	24
Number of functions	1
Number of terminals	24
Maximum operating temperature	85 °C
Minimum operating temperature	-25 °C
Package body material	PLASTIC/EPOXY
encapsulated code	SSOP
Encapsulate equivalent code	SSOP24,.3
Package shape	RECTANGULAR
Package form	SMALL OUTLINE
power supply	5 V
Certification status	Not Qualified
Maximum slew rate	30 mA
Nominal supply voltage	5 V
surface mount	YES
technology	CMOS
Temperature level	OTHER
Terminal surface	Tin/Lead (Sn/Pb)
Terminal form	GULL WING
Terminal pitch	0.635 mm
Terminal location	DUAL

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