TZA1020 View Datasheet(PDF) - Philips Electronics

Part Name

Description

Manufacturer

TZA1020

Pre-amplifiers for CD-RW systems

Philips Electronics 

Philips Semiconductors

Pre-amplifiers for CD-RW systems

Product specification

TZA1020; TZA1020A

6 PINNING

SYMBOL

UOUT

RREF

C2

SA1

SB1

C3

C4

SA2

SB2

C1

CAGAIN

SDA

SCL

AMON

ERON

VDD2

GND2

VSS2

ASTROBE

AINTON

ALS

AINT

CAHF

DALPHA

AZIN

PIN

DESCRIPTION

1 reference voltage output

2 reference current input

3 central photo diode current input

4 satellite photo diode current input

5 satellite photo diode current input

6 central photo diode current input

7 central photo diode current input

8 satellite photo diode current input

9 satellite photo diode current input

10 central photo diode current input

11 set-point laser power on disc,

current input

12 I2C-bus data input/output

13 I2C-bus clock input

14 alpha measurement on switch

(write/read state)

15 normalized error signals on switch

16 positive supply voltage 2

17 ground 2

18 negative supply voltage 2

19 control signal sample-and-hold in

alpha measurement

20 control signal integrator in alpha

measurement

21 DALPHA output enabled/disabled

22 integrator capacitor for alpha

measurement

23 central aperture high-frequency

current output

24 alpha error signal for laser power

control

25 set-point alpha control

SYMBOL

PPN

CWBL

VDD1

GND1

VSS1

RE

MEAS1

MEAS2

XDN

FEN

REN

TLN

MIRN

CALPF

HCA1

HCA2

A2

A1

CALF

PIN

DESCRIPTION

26 normalized, balanced push-pull

signal voltage

27 capacitor for EFM noise reduction

loop

28 positive supply voltage 1

29 ground 1

30 negative supply voltage 1

31 fast track count signal voltage

output

32 combination of photo diode

currents for adjustment 1

33 combination of photo diode

currents for adjustment 2

34 normalized spot position error

current output

35 normalized focus error current

output

36 normalized radial error current

output

37 normalized track-loss current

output

38 mirror output (disc reflection)

current output

39 capacitor to define CALF

bandwidth

40 capacitor to define time constant

peak detector A1

41 capacitor to define time constant

peak detector A2

42 pit amplitude relative to CALF,

voltage output

43 land amplitude relative to CALF,

voltage output

44 low-pass filtered aperture signal,

voltage output

2000 Oct 30

5

Share Link: