SAA7325 datasheet(11/68 Pages) PHILIPS

Part #	SAA7325

Description	Digital servo processor and Compact Disc decoder with integrated DAC CD10

Download	68 Pages

Scroll/Zoom	100%

Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

Logo

11 / 68 page

1999 Jun 17

11

Philips Semiconductors

Product speciﬁcation

Digital servo processor and Compact Disc

decoder with integrated DAC (CD10)

SAA7325

Fig.6 Data slicer showing typical application components.

47 pF

HFREF

HFIN

ISLICE

22 k

Ω

2.2 k

Ω

100 nF

1 nF

HF input

crystal

clock

DQ

DPLL

VSSA

VSS

MGS179

VDD

100

µA

100

µA

7.4

Demodulator

7.4.1

FRAME SYNC PROTECTION

A double timing system is used to protect the demodulator

from erroneous sync patterns in the serial data.

The master counter is only reset if:

• A sync coincidence is detected; sync pattern occurs

588

±1 EFM clocks after the previous sync pattern

• A new sync pattern is detected within ±6 EFM clocks of

its expected position.

The sync coincidence signal is also used to generate the

PLL lock signal, which is active HIGH after 1 sync

coincidence found, and reset LOW if during 61

consecutive frames no sync coincidence is found. The PLL

lock signal can be accessed via the SDA or STATUS pins

selected by decoder registers 2 and 7.

Also incorporated in the demodulator is a Run Length 2

(RL2) correction circuit. Every symbol detected as RL2 will

be pushed back to RL3. To do this, the phase error of both

edges of the RL2 symbol are compared and the correction

is executed at the side with the highest error probability.

7.4.2

EFM DEMODULATION

The 14-bit EFM data and subcode words are decoded into

8-bit symbols.

Similar Part No. - SAA7325

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	SAA7324	304Kb / 68P	Digital servo processor and Compact Disc decoder with integrated DAC CD10 II 2000 Jun 26
	SAA7324H	304Kb / 68P	Digital servo processor and Compact Disc decoder with integrated DAC CD10 II 2000 Jun 26
	SAA7326	391Kb / 68P	Digital servo processor and Compact Disc decoder with integrated DAC CD10 1999 Jun 17
	SAA7326H	391Kb / 68P	Digital servo processor and Compact Disc decoder with integrated DAC CD10 1999 Jun 17
	SAA7327	392Kb / 68P	Digital servo processor and Compact Disc decoder with integrated DAC for video CD CD7 II 1999 Jun 17

More results

Similar Description - SAA7325

Manufacturer	Part #	Datasheet	Description
NXP Semiconductors	SAA7326	391Kb / 68P	Digital servo processor and Compact Disc decoder with integrated DAC CD10 1999 Jun 17
	SAA7324	304Kb / 68P	Digital servo processor and Compact Disc decoder with integrated DAC CD10 II 2000 Jun 26
	SAA7327	392Kb / 68P	Digital servo processor and Compact Disc decoder with integrated DAC for video CD CD7 II 1999 Jun 17
	SAA7371	247Kb / 60P	Digital servo processor and Compact Disc decoder CD7 1998 Jul 06
	SAA7372	323Kb / 60P	Digital servo processor and Compact Disc decoder CD7 1998 Feb 26
	SAA7370	321Kb / 60P	Digital servo processor and Compact Disc decoder CD7 1998 Feb 26
	SAA7376	311Kb / 56P	Digital servo processor and Compact Disc decoder CD7 1998 Feb 26
	SAA7370A	248Kb / 60P	Digital servo processor and Compact Disc decoder CD7 1998 Feb 26
	SAA7373	323Kb / 60P	Digital servo processor and Compact Disc decoder CD7 1998 Jul 06
	SAA7377	311Kb / 56P	Digital servo processor and Compact Disc decoder CD7 1998 Jul 06

More results

SAA7325 Datasheet(PDF) 11 Page - NXP Semiconductors

SAA7325 Datasheet(HTML) 11 Page - NXP Semiconductors

Similar Part No. - SAA7325

Similar Description - SAA7325

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

Datasheet Download

Link URL