PLL1700

9

SBOS096A

www.ti.com

CONNECTION DIAGRAM

Figure 10 shows the typical connection circuit for the

PLL1700. There are three grounds for digital, analog and

PLL power supply. However, the use of one common

ground connection is recommended to avoid latch-up

problems. Power supplies should be bypassed as close

as possible to the device.

MPEG-2 APPLICATIONS

Typical applications for the PLL1700 are MPEG-2 based

systems such as DVD players, DVD add-on cards for

multimedia PCs, digital HDTV systems, and set-top boxes.

The PLL1700 provides audio system clocks for a CD-DA

DSP, DVD DSP, Karaoke DSP, and DAC(s) from a

27MHz video clock.

FIGURE 11. PLL1700 System Application Block Diagram.

FIGURE 10. Typical Connection Diagram.

20

19

18

17

16

15

14

13

12

11

1

2

3

4

5

6

7

8

9

10

Clock

Mode

Control

0.1

PLL1700E

ML/SR01

MODE

V

DD

GND

XT2

XT1

GNDP

V

DDP

RSV

MCKO

MC/FS1

MD/FS0

RST

SCKO3

V

DDB

GNDB

SCKO2

SCKO4

SCKO1

MCKO

C

3

C

2

0.1

µF

and

10

22

µF to 47µF

C

1

22

µF to 47µF

0.1

µF

and

10

C

5

C

4

(2)

+5V

+3.3 V

+

+

NOTES: (1) 0.1

µF ceramic and 10µF electrolytic capacitor typical, depending on quality of power supply and pattern layout.

(2) 27MHz quartz crystal and 10pF through two 33pF ceramic capacitors.

(3) To achieve best possible jitter performance, it is recommended to minimize the load capacitance on the clock output.

PCM1716

PCM1716

PCM1716

Front

Surround

Center

Subwoofer

384f

S

768f

S

256f

S

SCKO3

SCKO4

SCKO2

MCKO

PLL1700

27MHz

27MHz

Crystal

CD-DA/

DVD DSP

MPEG/AC-3

Audio Decoder

Karaoke

DSP

SCKO1