SAA7372 datasheet(44/60 Pages) PHILIPS

Part #	SAA7372

Description	Digital servo processor and Compact Disc decoder CD7

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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44 / 60 page

1998 Feb 26

44

Philips Semiconductors

Product speciﬁcation

Digital servo processor and Compact Disc

decoder (CD7)

SAA7372

Servo analog part (VDDA =5V; VSSA =0V; Tamb =25 °C)

PINS D1 TO D4, R1, R2, VRH,VRL AND IrefT

IrefT

input reference current

1.935

−

5.45

µA

RIrefT

external resistor on pin 10

220

−

620

k

Ω

VIrefT

voltage on reference

current input

−

1.2

−

V

ID(max)

maximum input current for

central diode input signal

note 2

3.871

−

10.9

µA

IR(max)

maximum input current for

satellite diode input signal

note 2

1.935

−

5.45

µA

VRL

LOW level reference voltage

0

V

VRH

HIGH level reference

voltage

output state 0; note 3

−

0.5

−

V

output state v; note 3

−30%

0.5

× 10v/44.4 +30%

V

output state 31;

note 3

−

2.5

−

V

(THD+N)/S

total harmonic distortion plus

noise

at 0 dB; note 4

−−50

−45

dB

S/N

signal-to-noise ratio

−

55

−

dB

PSRR

power supply ripple rejection

at VDDA2

note 5

−

45

−

dB

Gtol

gain tolerance

note 6

−12

0

+12

%

∆G

v

variation of gain between

channels

−−

2%

α

cs

channel separation

−

60

−

dB

Digital inputs

INPUTS: RESET, V1, V2, SELPLL (CMOS INPUT WITH PULL-UP RESISTOR AND HYSTERESIS)

Vthr(sw)

switching voltage threshold

rising

−−

0.8VDDD

V

Vthf(sw)

switching voltage threshold

falling

0.2VDDD

−−

V

Vhys

hysteresis voltage

−

0.33VDDD

−

V

RI(pu)

input pull-up resistance

Vi =0V

−

50

−

k

Ω

Cin

input capacitance

−−

10

pF

tresL

reset pulse width

(active LOW)

RESET only

1

−−

µs

INPUTS: SCL, RAB, SILD AND RCK (CMOS INPUT)

VIL

LOW level input voltage

−0.3

−

0.3VDD

V

VIH

HIGH level input voltage

0.7VDD

−

VDD + 0.3

V

ILI

input leakage current

Vi =0 − VDD

−10

−

+10

µA

Cin

input capacitance

−−

10

pF

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

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