SAA7824 datasheet(53/89 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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53 / 89 page

2003 Oct 01

53

Philips Semiconductors

Product speciﬁcation

CD audio decoder, digital servo and ﬁlterless

DAC with integrated pre-amp and laser control

SAA7824

Table 22 Multiple write register element description

SHADOW

REGISTER

ELEMENT NAME

BIT NUMBERS

DESCRIPTION

7

(bank 3)

<d1_off>

<5:0>

DC offset level for D1 (reset value = 000000)

<d2_off>

<11:6>

DC offset level for D2 (reset value = 000000)

<d3_off>

<17:12>

DC offset level for D3 (reset value = 000000)

<d4_off>

<23:18>

DC offset level for D4 (reset value = 000000)

<r1_off>

<29:24>

DC offset level for R1 (reset value = 000000)

<r2_off>

<35:30>

DC offset level for R2 (reset value = 000000)

A

(bank 3)

<hf_gain>

<3:0>

see Table 23

<slicer_slew>

<7:4>

see Table 24

<eq_speed_sel>

<9:8>

equaliser operating speed: 00 = 1

× (reset); 01 = 2×; 10 = 4×

<hp_ﬁlter_sel>

<15:10>

see Table 25

Table 23 HF gain

Table 24 Slicer threshold tracking slew rate (ISlice code

to current conversion)

DATA

DESCRIPTION

0000

voltage mode = 1.11 V

0001

voltage mode = 952 mV

0010

voltage mode = 588 mV

0011

voltage mode = 392 mV

0100

voltage mode = 1.11 V

0101

voltage mode = 952 mV

0110

voltage mode = 588 mV

0111

voltage mode = 392 mV

1000

voltage mode = 303 mV

1001

voltage mode = 200 mV

1010

voltage mode = 157 mV

1011

voltage mode = 107 mV

1100

voltage mode = 79 mV

1101

voltage mode = 54 mV

1110

voltage mode = 39 mV

1111

voltage mode = 27 mV

DATA

CURRENT (

µA)

0000

10 (reset)

0001

10

0010

20

0011

30

0100

50

0101

60

0110

70

0111

80

1000

100

1001

110

1010

120

1011

130

1100

150

1101

160

1110

170

1111

180

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