SAA7824 datasheet(73/89 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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73 / 89 page

2003 Oct 01

73

Philips Semiconductors

Product speciﬁcation

CD audio decoder, digital servo and ﬁlterless

DAC with integrated pre-amp and laser control

SAA7824

Notes

1. Assumes use of external components as shown in the application diagram; see Fig.38.

2. RL =10kΩ.

3. RL =1kΩ.

4. The typical value is as follows:

5. The typical value is as follows:

6. Pull-up/down devices are protected by a pass-gate and do not behave as a normal resistor for external applications

7. Pull-up/down resistors are connected to external power supply (VDDE/GND).

8. Minimum condition for Vi = 4.5 V, maximum condition for Vi = 5.5 V.

9. Accounts for 100 mV voltage drop in both supply lines.

10. Minimum condition for VTOL = 4.5 V, maximum condition for VTOL = 5.5 V.

11. Leakage path from pad to ground.

SDA (5 V TOLERANT; 400 kHZ I2C-BUS PAD)

VIH

HIGH-level input voltage

0.7VTOL

−−

V

VIL

LOW-level input voltage

VTOL = 5 V; note 10

−−

0.3VTOL

V

Vhys

hysteresis voltage

0.05VTOL

−−

V

VOL

LOW-level output voltage

IOL =3mA

−−

0.4

V

tf

output fall time from VIH to

VIL

bus capacitance, Cb,

from 10 pF to 400 pF)

20 + 0.1Cb

−

250

ns

Iikg

steady-state current input

signal

Vi =VDDD; note 11

−

24

µA

Vi = 5 V; note 11

−

10

22

µA

Crystal oscillator

INPUT: PIN OSCIN (EXTERNAL CLOCK)

VIH

HIGH-level input voltage

−−

0.2VDDD

V

VIL

LOW-level input voltage

0.8VDDD

−−

V

OUTPUT: PIN OSCOUT; see Fig.4

VOL

LOW-level output voltage

−−

0.4

V

VOH

HIGH-level output voltage

0.85VDDD

−−

V

fxtal

crystal frequency

±100 ppm

−

8.4672

−

MHz

gm

mutual conductance at

start-up

19.1

−

23.0

mA/V

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1.65

3.3

×

V

DDA

--------------------------

2.5

3.3

×

V

DDA

----------------------

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