SAA7325 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

SAA7325

Digital servo processor and Compact Disc decoder with integrated DAC (CD10)

Philips Electronics 

Philips Semiconductors

Digital servo processor and Compact Disc

decoder with integrated DAC (CD10)

Product specification

SAA7325

handbook, full pagewidth

HFREF 1

HFIN 2

ISLICE 3

VSSA1 4

VDDA1 5

Iref 6

VRIN 7

D1 8

D2 9

D3 10

D4 11

R1 12

R2 13

VSSA2 14

CROUT 15

CRIN 16

SAA7325H

48 SBSY

47 SFSY

46 SUB

45 RCK

44 TEST3

43 STATUS

42 SILD

41 RAB

40 SCL

39 SDA

38 RESET

37 SCLI

36 SDI

35 WCLI

34 V2/V3

33 VSSD1

MGL693

Fig.2 Pin configuration.

7 FUNCTIONAL DESCRIPTION

7.1 Decoder part

7.1.1 PRINCIPAL OPERATIONAL MODES OF THE DECODER

The decoding part supports a full audio specification at

single-speed (n = 1). A simplified data flow through the

decoder part is illustrated in Fig.7.

(see Section 7.2). The range of crystal and oscillator

frequencies possible is controlled via decoder register B

and shown in Table 1. The MSB of decoder register B

must be set to logic 0.

The internal clock multiplier is controlled by SELPLL, and

should only be used if a 8.4672 or 16.9344 MHz crystal,

ceramic resonator or external clock is present.

7.1.2 DECODING SPEED AND CRYSTAL FREQUENCY

The SAA7325 is a single-speed decoding device, with an

internal Phase-Locked Loop (PLL) clock multiplier allowing

a choice of different crystals and oscillators to be used

1999 Jun 17

8

Share Link: