Datasheet TZA1025T-V2 Datasheet (Philips)

DATA SH EET

Product specification
File under Integrated Circuits, IC01

1998 Oct 30

INTEGRATED CIRCUITS

TZA1025

Data amplifier and laser supply
circuit for CD audio and video
optical systems (ADALASLC)

1998 Oct 30 2

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

FEATURES

• Supports a wide range of voltage output mechanisms

• RF amplifier designed for audio and video applications
with 1 × data rate

• Programmable RF gain for CD-Audio/Video (CD-A/V)

and CD-Read/Write (CD-R/W) discs

• Equalizer for optimal performance

• Fully Automatic Laser Power Control (ALPC) including

stabilization plus a separate laser supply voltage for
power efficiency

• Adjustable current range of ALPC output

• Automatic N- or P-substrate monitor diode selection

• Adjustable laser bandwidth and laser switch-on current

slope using external capacitor

• Protection circuit to prevent laser damage due to laser
supply voltage dip

• Optimized interconnection between data amplifier and
Philips’ digital signal processor CD10LC (SAA7325)

• Wide supply voltage range

• Power-down switch to reduce power consumption

during standby

• Low power consumption.

GENERAL DESCRIPTION

The TZA1025 is a data amplifier and laser supply circuit for
voltage output mechanisms found in a wide range of audio
and video CD systems. The device contains an RF
amplifier and an automatic laser power control circuit.

The preamplifier forms an interface for voltage output CD
mechanisms to the Philips’ digital signal processor
CD10LC (SAA7325).

The RF bandwidth allows this device to be used in CD-A/V
applications with a data rate of n = 1 times speed. The RF
gain can be adapted for CD-A/V discs or CD-R/W discs by
means of the gain select signal.

The equalizer ensures an optimal performance.
The TZA1025 can be adapted to a wide range of voltage

output mechanisms by means of external resistors.
The ALPC circuit will maintain control over the laser diode

current. With an on-chip reference voltage generator, a
constant and stabilized output power is ensured
independent of ageing. The ALPC can accommodate
N- or P-substrate monitor diodes.

A separate supply voltage connection for the laser allows
the internal power dissipation to be reduced by connecting
a low voltage supply. The laser output current range can
be optimized to fit the requirements of the laser diode by
means of one external resistor. When a DC-to-DC
converter is used, in combination with the control loop of
the ALPC, the adjustable output current range provides
the possibility to compensate for the extra gain a DC-to-DC
converter introduces in the control loop.

ORDERING INFORMATION

TYPE

NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TZA1025T SO14 plastic small outline package; 14 leads; body width 3.9 mm SOT108-1

1998 Oct 30 3

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

QUICK REFERENCE DATA

BLOCK DIAGRAM

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supplies

V

DD

supply voltage 2.4 − 5.5 V

I

DD

supply current − 3 − mA

V

DD(L)

laser supply voltage 2.4 − 5.5 V

RF amplifier

t

d(f)(RF)

RF flatness delay −− 10 ns

Laser supply circuit

I

o(LASER)(max)

maximum laser output current V

DD(L)

− V

o(LASER)

= 0.55 V 80 −−mA

V

i(mon)

monitor input voltage

N-substrate monitor diode − 0.150 − V
P-substrate monitor diode − V

DD

− 0.150 − V

Temperature range

T

amb

operating ambient temperature 0 − 70 °C

Fig.1 Block diagram.

(1) Band gap reference voltage.

handbook, full pagewidth

MBK902

250
kHz

8

TZA1025

14

3
7

10

1

12

9

V/I

V/I

V

DD(L)

V

DD

GND

26

V

GAP

MON

4

(1)

DIN

5

CDRW

11

V

DD

13

LD

CFIL

PWRON

RGADJ

CMFB

RFFB

RFEQO

GND

1998 Oct 30 4

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

PINNING

FUNCTIONAL DESCRIPTION

The TZA1025 consists of two sections, the RF amplifier
and the automatic laser power control circuit.

RF amplifier

The RF amplifier consists of a current input amplifier, an
equalizer/bandwidth section and a transimpedance output
amplifier with an external feedback resistor of 10 kΩ(fixed
value).

SYMBOL PIN DESCRIPTION

LD 1 current output to laser diode
V

DD(L)

2 laser supply voltage
CFIL 3 external filter capacitor
MON 4 laser monitor diode input
DIN 5 central diode input
GND 6 ground
PWRON 7 power-on select input
CMFB 8 common mode feedback voltage

input
RFFB 9 external RF feedback resistor
RFEQO 10 RF amplifier output
CDRW 11 gain select input for CD-A/V, CD-R/W
GND 12 ground
V

DD

13 supply voltage

RGADJ 14 external laser supply gain adjust

resistor

Fig.2 Pin configuration.

handbook, halfpage

MBK901

TZA1025

1
2
3
4
5
6
7

8

14
13
12
11
10

9

LD

V

DD(L)

CFIL

MON

DIN

GND

PWRON

CMFB

RFFB

RFEQO

CDRW

GND

V

DD

RGADJ

The gain of the RF amplifier can be adjusted by the
external input resistors. Fig.3 shows the simplified
schematic which can be used to determine the RF gain.
The signal is AC coupled to the RF amplifier. The formula
to determine the gain is shown below:

(1)

where:

GRF is the RF amplifier gain
n is the number of input resistors
Z

tr(RF)

is the transimpedance of the amplifier (Ω)

R2 is the value of the input resistors (Ω).

The gain can be increased by a factor of 4 by making
pin CDRW HIGH. The value of Z

tr(RF)

is 9.8 kΩ for CD-A/V

(CDRW = LOW) and 38 kΩ for CD-R/W (CDRW = HIGH).
An internal equalizer ensures an optimal performance.
The DC output level of the amplifier can be set by applying

a DC voltage on the common mode feedback pin CMFB.
Since the input signal is AC-coupled the RF output voltage
will swing (symmetrically) around this DC level.

The coupling of the TZA1025 to the signal processor
(SAA7325) can be either AC or DC. When an AC-coupling
is chosen (see Fig.6) the minimum supply voltage can be
applied. When a DC-coupling is chosen (see Fig.7) a
minimum supply voltage of 2.8 V is required.

G

RF

n–

Z

tr RF()

R2

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

×=

Fig.3 Simplified schematic.

handbook, halfpage

CDRW

RFEQO

C2

10 kΩ

V

in

R2(1)
R2(2)

R2(n)

V

in

V

in

MGL530

1998 Oct 30 5

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

Automatic laser power control circuit

The ALPC stabilises the laser output power thereby
reducing the effect of ageing of the laser.

The TZA1025 automatically detects when an
N- or P-substrate monitor diode is used and selects the
correct reference voltage. A simplified diagram for the use
of an N- or P-substrate monitor diode is given in Fig.4.

The gain of the loop can be controlled (reduced) by adding
an external resistor between pins RGADJ and GND.
The loop gain then becomes:

(2)

where:

G

loop

is the loop gain

G

ALPC

is the ALPC transfer (60 A/V)
Glm is the laser-to-monitor transfer (V/A)
G

con

is the extra gain introduced when a DC-to-DC

converter is used in the loop; G

con

= 1 when no

DC-to-DC converter is used
250 is a fixed internal resistor value (Ω)
R

RGADJ

is the value of the external resistor (Ω).

The minimum available output current is also reduced
when an external resistor is used. The formula to
determine the minimum available output current is shown
in equation (3).

(3)

G

loop

G

ALPCGlm

× G

con

×

250

250 R

RGADJ

+

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

×=

I

oIo(LASER)(max)

250

250 R

RGADJ

+

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

×=

where:

I

o

is output current (mA)

I

o(LASER)(max)

is the maximum laser output current (mA)
250 is a fixed internal resistor value (Ω)
R

RGADJ

is the value of the external resistor (Ω).

The bandwidth of the loop is determined by the external
filter capacitor C

CFIL

and the loop gain. The formula to

determine the bandwidth is shown in equation (4).

(4)

where:

C

CFIL

is the value of the capacitor (F)

G

loop

is the loop gain.

The TZA1025 has a protection circuit to prevent laser
damage that can occur due to a dip of V

DD(L)

. When a dip
occurs the output transistor (see Fig.4) will go into
saturation making it unable to supply the required laser
current. Without the protection circuit the ALPC would still
try to supply the required laser current by charging the filter
capacitor C

CFIL

. After the dip a fully charged capacitor
would create a large output current during the few
milliseconds it needs to discharge the capacitor to a
normal level. The protection circuit monitors the output
transistor and switches off the ALPC when saturation
occurs by discharging the capacitor. The ALPC will
automatically restart within a few milliseconds after the dip
has passed.

τ

-3dB

C

CFIL

16 106⋅×

G

loop

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

=

Fig.4 Automatic Laser Power Control (ALPC) loop.

a. N-substrate monitor diode. b. P-substrate monitor diode.

handbook, full pagewidth

MGR519

DC-TO-DC

CONVERTER

C

CFIL

C

CFIL

V

DD(L)

150 mV

DC-TO-DC

CONVERTER

V

DD(L)

V

DD

VDD − 150 mV

1998 Oct 30 6

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

Notes

1. The maximum value V

DD

+ 0.5 must not exceed 5.5 V.

2. The maximum value V

DD(L)

+ 0.5 must not exceed 5.5 V.

3. Pins DIN and RFFB are current inputs with a limitation on the maximum input current.

4. The maximum peak current must not exceed ten times the absolute average input current with a maximum for the
absolute average input current of 1 mA. Averaging is only allowed over a maximum time interval of 100 ms.

5. Equivalent to discharging a 100 pF capacitor via a 1.5 kΩ series resistor with a rise time of 15 ns.

6. Equivalent to discharging a 200 pF capacitor via a 2.5 µH series inductor.

QUALITY SPECIFICATION

In accordance with

“SNW-FQ-611-E”

.

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

DD

supply voltage −0.5 +5.5 V

V

DD(L)

laser supply voltage −0.5 +5.5 V

V

i(n)

input voltage on pins 3, 4, 7, 8,
10, 11, 12 and 14

note 1 −0.5 VDD+ 0.5 V

V

o(LASER)

laser output voltage note 2 −0.5 V

DD(L)

+ 0.5 V

V

i(DIN)

central diode input voltage note 3 −0.5 − V

I

i(DIN)

central diode input current note 4 −1+1mA

V

i(RFFB)

RF feedback voltage note 3 −0.5 − V

I

i(RFFB)

RF feedback current note 4 −1+1mA

V

es

electrostatic handling human body model; note 5 −2000 +2000 V

machine model; note 6 −250 +250 V

T

amb

operating ambient temperature 0 70

°

C

1998 Oct 30 7

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

CHARACTERISTICS

VDD= 2.4 V; V

DD(L)

− V

o(LASER)

= 0.55 V; I

i(DIN)

= 0 mA; I

o(LASER)

= 80 mA; V

CMFB

=1⁄2VDD; PWRON = HIGH;

CDRW = LOW; C

CFIL

= 10 nF; R

RFFB

=10kΩ; pin RGADJ connected to ground; T

amb

=25°C; unless otherwise

specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supplies

V

DD

supply voltage 2.4 − 5.5 V

V

DDL(L)

laser supply voltage 2.4 − 5.5 V

I

DD

supply current − 3 − mA

I

q

quiescent supply
current

PWRON = LOW −−40 µA

RF amplifier

I

i(DIN)

central diode input
current

−70 − +70 µA

Z

i(DIN)

central diode input
impedance

− 100 −Ω

V

CMFB

common mode
feedback input voltage

0.7

1

⁄2V

DD

VDD− 0.4 V

V

O(RFEQO)

RF amplifier output
DC-level

CDRW = LOW V

CMFB

− 0.05 − V

CMFB

+ 0.25 V

CDRW = HIGH V

CMFB

− 0.35 − V

CMFB

+ 0.35 V

V

o(RFEQO)

RF amplifier output
voltage

0.25 − VDD− 0.25 V

Z

o(RFEQO)

RF amplifier output
impedance

note 1 − 100 −Ω

t

d(f)(RF)

RF flatness delay −−10 ns

G

RF

RF path gain boost f = 720 kHz; note 2 − 5 − dB

Z

tr(RF)

RF transimpedance note 3

CDRW = LOW 9.2 9.8 10.4 kΩ
CDRW = HIGH 35.6 38 40.4 kΩ

THD

RF

RF total harmonic
distortion

note 4 −−50 − dB

PSRR

RF

RF power supply ripple
rejection

0 to 100 kHz − 40 − dB

V

n(in-band)(rm

s)

in-band noise
(RMS value)

note 4 − 2.7 − mV

Laser supply circuit

V

drop

drop voltage note 5 0.55 − 5.5 V

I

o(LASER)(max

)

maximum laser output
current

V

drop

= 0.55 V; note 6 80 −−mA

Z

o(LASER)

laser output impedance V

drop

= 0.55 V; note 7

I

o(LASER)

=53mA − 500 −Ω

I

o(LASER)

=20mA − 1200 −Ω

1998 Oct 30 8

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

Notes

1. Closed-loop output impedance (10 kΩ feedback resistor connected between pins RFEQO and RFFB).

2. G

RF

=(G

RFEQO

at fEQ) − (G

RFEQO

at 720 kHz).

3. Values to be used in equation (1).

4. An RF filter of 1 kΩ and 47 pF should be used on the RF output.

5. V

drop=VDD(L)

− V

o(LASER)

.

6. An external resistor can be used to reduce the maximum output current (and the gain) of the laser supply;
see equation (4).

7. The output impedance strongly depends on the drop voltage (V

drop

). The output impedance will approximately double

when the drop voltage doubles.

8.

9. When a voltage dip at V

DD(L)

occurs it could cause peak currents on I

o(LASER)

coming out of the ALPC output.

To protect the laser against such peak currents a protection circuit will switch-off the laser current when V

drop

becomes lower than V

clamp

. When V

drop>Vclamp

the laser will switch-on automatically again.

V

i(mon)

monitor input voltage

N-substrate 0.132 0.150 0.168 V
P-substrate V

DD

− 0.168 VDD− 0.150 VDD− 0.132 V

I

i(mon)

monitor input current −200 − +200 nA

t

sw(on)(LASER)

laser switch-on time − 3 − ms

RS

ref

reference supply
rejection

note 8 −−5%

V

clamp

ALPC clamp voltage note 9 −−0.5 V

Control inputs

Z

i(pd)

pull-down input
impedance pin CDRW

− 200 − kΩ

Z

i(pu)

pull-up input
impedance
pin PWRON

− 200 − kΩ

V

IL

LOW-level input
voltage

pin CDRW −0.2 −

1

⁄3V

DD

V

pin PWRON −0.2 −

1

⁄3V

DD

V

V

IH

HIGH-level input
voltage

pin CDRW

2

⁄3V

DD

− VDD+ 0.2 V

pin PWRON

2

⁄3V

DD

− VDD+ 0.2 V

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

RS

ref

∆V

mon

V

mon

----------------­∆ V

DD

V

DD

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

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

=

1998 Oct 30 9

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

Fig.5 Equalizer gain and delay.

Definition of delay: t

d

ϕ

360

--------- -





f

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

=

(1) Gain.
(2) Delay.

handbook, halfpage

12

−4

MGR520

10

−1

110

0

4

8

246

248

250

252

254

G

(dB)

t

d

(ns)

f (MHz)

(2)

(1)

1998 Oct 30 10

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

APPLICATION INFORMATION

The application for the TZA1025 (ADALASLC) with the SAA7325 (CD10LC) using a coupling capacitor of 3.3 nF is
shown in Fig.6.

Fig.6 Application diagram with SAA7325 (CD10LC) using a coupling capacitor.

(1) See equation (3) to calculate the value of this resistor.
(2) Pin CDRW can be controlled by the CD10LC or a microprocessor but can also be fixed or switched by any other means.
(3) The 10 kΩ feedback resistor between pins 9 and 10 is a fixed value.

(4) The high-pass filter (AC-coupling) is placed at the input of the preamplifier. The −3 dB point (f = 10 kHz) is at

R2 Ω() C2 F()×

4

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

MBK903

handbook, full pagewidth

10 nF

100 nF

100 nF

100 nF100 nF

TZA1025

(ADALASLC)

SAA7325

(CD10LC)

OPU

1
2
3
4
5
6
7

8

14
13
12
11
10

9

LD

V

DD(L)

CFIL

MON

DIN

GND

PWRON CMFB

RFFB

RFEQO

CDRW

GND

V

DD

RGADJ

R

RGADJ

(1)

LD

D1
D2
D3
D4
S1
S2

D1
D2
D3
D4

S1
S2

MON

VCOM

3.3 nF

HFIN

HFREF

ISLICE

LDON

VRIN

22

kΩ

10 kΩ

(3)

1 kΩ

47 pF

C2

(4)

V

DD(LASER)

V

DD

R2 (4×)

V

DD

LF FILTER

6 × 220 pF

from

microprocessor

(2)

1998 Oct 30 11

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

The application for the TZA1025 (ADALASLC) with the SAA7325 (CD10LC) without a coupling capacitor is shown in
Fig.7. A minimum supply voltage (VDD) is required for optimal performance.

Fig.7 Application diagram with SAA7325 (CD10LC) without coupling capacitor.

(1) See equation (3) to calculate the value of this resistor.
(2) Pin CDRW can be controlled by the CD10LC or a microprocessor but can also be fixed or switched by any other means.
(3) The 10 kΩ feedback resistor between pins 9 and 10 is a fixed value.

(4) The high-pass filter (AC-coupling) is placed at the input of the preamplifier. The −3 dB point (f = 10 kHz) is at
(5) The minimum supply voltage (VDD) without using a coupling capacitor is 2.8 V.

R2 Ω() C2 F()×

4

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

MBK904

handbook, full pagewidth

10 nF

100 nF

100 nF

100 nF100 nF

TZA1025

(ADALASLC)

SAA7325

(CD10LC)

OPU

1
2
3
4
5
6
7

8

14
13
12
11
10

9

LD

V

DD(L)

CFIL

MON

DIN

GND

PWRON CMFB

RFFB

RFEQO

CDRW

GND

V

DD

RGADJ

R

RGADJ

(1)

LD

D1
D2
D3
D4
S1
S2

D1
D2
D3
D4

S1
S2

MON

VCOM

HFIN

HFREF

ISLICE

LDON

VRIN

10 kΩ

(3)

1 kΩ

47 pF

C2

(4)

V

DD(LASER)

V

DD

R2 (4×)

V

DD

(5)

from

microprocessor

(2)

LF FILTER

6 × 220 pF

1998 Oct 30 12

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

PACKAGE OUTLINE

UNIT

A

max.

A

1

A2A

3

b

p

cD

(1)E(1)

(1)

eHELLpQZywv θ

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

mm

inches

1.75

0.25

0.10

1.45

1.25

0.25

0.49

0.36

0.25

0.19

8.75

8.55

4.0

3.8

1.27

6.2

5.8

0.7

0.6

0.7

0.3

8
0

o
o

0.25 0.1

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

Note

1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.

1.0

0.4

SOT108-1

X

w M

θ

A

A

1

A

2

b

p

D

H

E

L

p

Q

detail X

E

Z

e

c

L

v M

A

(A )

3

A

7

8

1

14

y

076E06S MS-012AB

pin 1 index

0.069

0.010

0.004

0.057

0.049

0.01

0.019

0.014

0.0100

0.0075

0.35

0.34

0.16

0.15

0.050

1.05

0.041

0.244

0.228

0.028

0.024

0.028

0.012

0.01

0.25

0.01 0.004

0.039

0.016

95-01-23
97-05-22

0 2.5 5 mm

scale

SO14: plastic small outline package; 14 leads; body width 3.9 mm

SOT108-1

1998 Oct 30 13

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

SOLDERING
Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

“Data Handbook IC26; Integrated Circuit Packages”

(order code 9398 652 90011).

Reflow soldering

Reflow soldering techniques are suitable for all SO
packages.

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.

Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.

Wave soldering

Wave soldering techniques can be used for all SO
packages if the following conditions are observed:

• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.

• The longitudinal axis of the package footprint must be
parallel to the solder flow.

• The package footprint must incorporate solder thieves at
the downstream end.

During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.

Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
6 seconds. Typical dwell time is 4 seconds at 250 °C.

A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.

Repairing soldered joints

Fix the component by first soldering two diagonally­opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.

1998 Oct 30 14

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

DEFINITIONS

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.

Data sheet status

Objective specification This data sheet contains target or goal specifications for product development.
Preliminary specification This data sheet contains preliminary data; supplementary data may be published later.
Product specification This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

1998 Oct 30 15

Philips Semiconductors Product specification

Data amplifier and laser supply circuit for CD
audio and video optical systems (ADALASLC)

TZA1025

NOTES

Internet: http://www.semiconductors.philips.com

Philips Semiconductors – a worldwide company

© Philips Electronics N.V. 1998 SCA60
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.

Middle East: see Italy
Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,

Tel. [phone], Fax. [phone]
New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,

Tel. [phone], Fax. [phone]
Norway: Box 1, Manglerud 0612, OSLO,

Tel. [phone], Fax. [phone]

Pakistan: see Singapore
Philippines: Philips Semiconductors Philippines Inc.,

106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. [phone], Fax. [phone]

Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA,
Tel. [phone], Fax. [phone]

Portugal: see Spain
Romania: see Italy
Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,

Tel. [phone], Fax. [phone]
Singapore: Lorong 1, Toa Payoh, SINGAPORE 319762,

Tel. [phone], Fax. [phone]

Slovakia: see Austria
Slovenia: see Italy
South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,

2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000,
Tel. [phone], Fax. [phone]

South America: Al. Vicente Pinzon, 173, 6th floor,
04547-130 SÃO PAULO, SP, Brazil,
Tel. [phone], Fax. [phone]

Spain: Balmes 22, 08007 BARCELONA,
Tel. [phone], Fax. [phone]

Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,
Tel. [phone], Fax. [phone]

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,
Tel. [phone] Fax. [phone]

Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1,
TAIPEI, Taiwan Tel. [phone], Fax. [phone]

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,
209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,
Tel. [phone], Fax. [phone]

Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,
Tel. [phone], Fax. [phone]

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,
252042 KIEV, Tel. [phone], Fax. [phone]

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,
MIDDLESEX UB3 5BX, Tel. [phone], Fax. [phone]

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. [phone]

Uruguay: see South America
Vietnam: see Singapore
Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,

Tel. [phone], Fax.[phone]

For all other countries apply to: Philips Semiconductors,
International Marketing & Sales Communications, Building BE-p, P.O. Box 218,
5600 MD EINDHOVEN, The Netherlands, Fax. [phone]

Argentina: see South America
Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,

Tel. [phone], Fax. [phone]
Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. [phone],

Fax. [phone]
Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,

220050 MINSK, Tel. [phone], Fax. [phone]

Belgium: see The Netherlands
Brazil: seeSouth America
Bulgaria: Philips Bulgaria Ltd., Energoproject, 15thfloor,

51 James Bourchier Blvd., 1407 SOFIA,
Tel. [phone], Fax. [phone]

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,
Tel. [phone]

China/Hong Kong: 501 Hong Kong Industrial Technology Centre,
72 Tat Chee Avenue, Kowloon Tong, HONG KONG,
Tel. [phone], Fax. [phone]

Colombia: see South America
Czech Republic: see Austria
Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,

Tel. [phone], Fax. [phone]
Finland: Sinikalliontie 3, FIN-02630 ESPOO,

Tel. [phone], Fax. [phone]
France: 51 Rue Carnot, BP317, 92156 SURESNES Cedex,

Tel. [phone], Fax. [phone]
Germany: Hammerbrookstraße 69, D-20097 HAMBURG,

Tel. [phone], Fax. [phone]
Greece: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS,

Tel. [phone], Fax. [phone]

Hungary: seeAustria
India: Philips INDIA Ltd, Band Box Building, 2nd floor,

254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025,
Tel. [phone], Fax. [phone]

Indonesia: PT Philips Development Corporation, Semiconductors Division,
Gedung Philips, Jl. Buncit Raya Kav.99-100, JAKARTA 12510,
Tel. [phone] ext. 2501, Fax. [phone]

Ireland: Newstead, Clonskeagh, DUBLIN 14,
Tel. [phone], Fax. [phone]

Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053,
TEL AVIV 61180, Tel. [phone], Fax. [phone]

Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,
20124 MILANO, Tel. [phone], Fax. [phone]

Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku,
TOKYO 108-8507, Tel. [phone], Fax. [phone]

Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,
Tel. [phone], Fax. [phone]

Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,
Tel. [phone], Fax. [phone]

Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,
Tel. [phone]

Printed in The Netherlands 545102/00/01/pp16 Date of release: 1998 Oct 30 Document order number: 9397 750 04251