LA9247T Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

LA9247T

CD-ROM Digital Servo RF IC

SANYO -> Panasonic 

Pin Functions

Pin No.

Symbol

1

BHC

2

PHC

3

RFAO

4

GND1

5

RFIN

6

VCC3

7

A

8

B

9

C

10

D

11

REFI

12

VREF

13

E

14

F

15

LDD

16

LDS

17

VREF2

18

REFI2

19

SGC

20

TBAL

21

FBAL

22

LDON

23

VCC2

24

GHS

25

TS

26

TE

27

CSS

28

FE

29

REFL

30

EQS

31

GND2

32

RHLD

33

RFSM

34

VCC1

35

BH

36

PH

LA9247T

I/O

Description

RF AGC detection bottom hold capacitor connection

RF AGC detection peak hold capacitor connection

O

RF amplifier output

I

RF signal system ground

I

Pickup voltage output connection. Inputs the RF addition signal from the pickup.

I

3.3V system VCC

I

Pickup voltage output connection. Generates the FE, REFL, and CSS signals.

I

Pickup voltage output connection. Generates the FE, REFL, and CSS signals.

I

Pickup voltage output connection. Generates the FE, REFL, and CSS signals.

I

Pickup voltage output connection. Generates the FE, REFL, and CSS signals.

Reference voltage bypass capacitor connection

O

Reference voltage output (Vref1 = 2.5V)

I

Pickup voltage output connection. Generates the TE and TS signals.

I

Pickup voltage output connection. Generates the TE and TS signals.

O

APC circuit output

I

APC circuit input

O

Reference voltage output (Vref2 = 1.65V)

Reference voltage bypass capacitor connection

I

Servo gain control (FE, TE, TS, and REFL signals)

I

TE balance adjustment (TE and TS signals)

I

FE balance adjustment (FE signal)

I

Laser on/off, laser power increase control

I

Servo signal system VCC (5V)

I

RF and servo signal gain switch (0dB or +14dB)

O

TS signal (used for the TES signal) output (to the DSP)

O

TE signal output (to the DSP)

O

Center servo signal output (to the DSP)

O

FE signal output (to the DSP)

O

Reflection signal output (to the DSP)

I

RF equalizer and PH detection time constant control

I

Servo signal system ground

I

RF hold control

O

EFM signal output (to the DSP)

I

RF signal system VCC (5V)

O

RF bottom hold signal output (to the DSP)

O

RF peak hold signal output (to the DSP)

Usage Notes

The signal levels of the inputs to the A (pin 7), B (pin 8), C (pin 9), D (pin 10), E (pin 13), and F (pin 14) pins must be set

up to be above the reference voltage (VREF).

No.N8219-4/6

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