SAA7824 datasheet(48/89 Pages) PHILIPS

Part #	SAA7824

Description	CD audio decoder, digital servo and filterless DAC with integrated pre-amp and laser control (PhonIC)

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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48 / 89 page

2003 Oct 01

48

Philips Semiconductors

Product speciﬁcation

CD audio decoder, digital servo and ﬁlterless

DAC with integrated pre-amp and laser control

SAA7824

Table 17 Loop ﬁlter bandwidth

Note

1. The initial column shows the Power-on reset state.

7.17.5

SUMMARY OF FUNCTIONS CONTROLLED BY SHADOW REGISTERS

Table 18 Bank 1 shadow register settings (single write)

REGISTER

ADDRESS

DATA

FUNCTION

INITIAL(1)

LOOP

BANDWIDTH

(Hz)

INTERNAL

BANDWIDTH

(Hz)

LOW-PASS

BANDWIDTH

(Hz)

8

(PLL loop

ﬁlter

bandwidth)

1000

0000

1640

× n

525

× n

8400

× n

−

0001

3279

× n

263

× n

16800

× n

−

0010

6560

× n

131

× n

33600

× n

−

0100

1640

× n

1050

× n

8400

× n

−

0101

3279

× n

525

× n

16800

× n

−

0110

6560

× n

263

× n

33600

× n

−

1000

1640

× n

2101

× n

8400

× n

−

1001

3279

× n

1050

× n

16800

× n

reset

1010

6560

× n

525

× n

33600

× n

−

1100

1640

× n

4200

× n

8400

× n

−

1101

3279

× n

2101

× n

16800

× n

−

1110

6560

× n

1050

× n

33600

× n

−

SHADEN

BITS

SHADOW

REGISTER

ADDRESS

DATA

FUNCTION

INITIAL

01

(bank 1)

3

control of

versatile and

clock pins

0011

XX00

select CLK4 on CLK4/12 output

reset

XX01

select CLK12 on CLK4/12 output

−

X0XX

enable CLK16 output pin

reset

X1XX

set CLK16 output pin to

high-impedance

−

0XXX

set V3 output pin to high-impedance

reset

1XXX

enable V3 output pin

−

7

control of

onboard

DAC

0111

0000

use external DAC or route audio data

back into onboard DAC

(loopback mode)

reset

0010

route audio data directly into onboard

DAC (non-loopback mode)

−

7

EBU mute

bypass

control (for

M1 version

only)

XXX0

EBU mute function not bypassed

reset

XXX1

EBU mute function bypassed

−

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