Datasheet TDA8771AH-C1-R2, TDA8771AH-C1-R1, TDA8771AH-C1 Datasheet (Philips)

DATA SH EET

Product specification
File under Integrated Circuits, IC02

1996 Jan 25

INTEGRATED CIRCUITS

TDA8771A

Triple 8-bit video Digital-to-Analog
Converter (DAC)

1996 Jan 25 2

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

FEATURES

• 8-bit resolution

• Sampling rate up to 35 MHz

• Internal reference voltage regulator

• No deglitching circuit required

• Large output voltage range

• 1kΩ output load

• Power dissipation only 200 mW

• Single 5 V power supply

• 44-pin QFP package.

APPLICATIONS

• General purpose high-speed digital-to-analog
conversion

• Digital TV

• Graphic display

• Desktop video processing.

GENERAL DESCRIPTION

The TDA8771A is a triple 8-bit video Digital-to-Analog
Converter (DAC). It converts the digital input signals into
analog voltage outputs at a maximum conversion rate of
35 MHz.

The DACs are based on resistor-string architecture with
integrated output buffers. The output voltage range is
determined by a built-in reference source.

The device is fabricated in a 5 V, CMOS process that
ensures high functionality with low power dissipation.

QUICK REFERENCE DATA

Note

1. Minimum and maximum data of current and power consumption are measured in worse case conditions: for

minimum data, all digital inputs are at logic level 0 while for maximum data, all digital inputs are at logic level 1.

ORDERING INFORMATION

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

DDA

analog supply voltage 4.5 5.0 5.5 V

V

DDD

digital supply voltage 4.5 5.0 5.5 V

I

DDA

analog supply current RL=1kΩ; note 1 10 33 45 mA

I

DDD

digital supply current f

clk

= 35 MHz − 720mA

INL integral non-linearity f

clk

= 35 MHz; ramp input −±0.5 ±1 LSB

DNL differential non-linearity f

clk

= 35 MHz; ramp input −±0.25 ±0.5 LSB

f

clk(max)

maximum clock frequency 35 −−MHz

P

tot

total power dissipation RL=1kΩ; f

clk

= 35 MHz; note 1 45 200 360 mW

TYPE

NUMBER

P ACKAGE

NAME DESCRIPTION VERSION

TDA8771AH QFP44 plastic quad flat package; 44 leads (lead length 1.3 mm);

body 10 × 10 × 1.75 mm

SOT307-2

1996 Jan 25 3

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

BLOCK DIAGRAM

Fig.1 Block diagram.

handbook, full pagewidth

MBH039

RESISTOR

STRING

MSB

DECODER

LSB

DECODER

4

4

31

RESISTOR

STRING

MSB

DECODER

LSB

DECODER

4

4

RESISTOR

STRING

MSB

DECODER

LSB

DECODER

4

4

30,29
26,25

4

24 to 21

4

BANDGAP

REFERENCE

16 to 13

4

20 to 17

4

5 to 3

4

12 to 9

4

8

34, 37, 38,41 33

36

2,42 6,28

40

44

1

clock input

7,2732,35,39,43

V

DDA DDD

V

reference

current input

RED

analog output

GREEN

analog output

BLUE

analog output

V

SSA SSD

V

reference voltage

decoupling input

not

connected

BLUE

digital inputs

(bits B4 to B7)

BLUE

digital inputs

(bits B0 to B3)

GREEN

digital inputs

(bits G4 to G7)

GREEN

digital inputs

(bits G0 to G3)

RED

digital inputs

(bits R4 to R7)

RED

digital inputs

(bits R0 to R3)

TDA8771A

(I )

REF

(V )

REF

1996 Jan 25 4

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

PINNING

SYMBOL PIN DESCRIPTION

I

REF

1 reference current input for output buffers

V

SSA1

2 analog supply ground 1
R7 3 RED digital input data; bit 7 (MSB)
R6 4 RED digital input data; bit 6
R5 5 RED digital input data; bit 5
V

SSD1

6 digital supply ground 1
V

DDD1

7 digital supply voltage 1
R4 8 RED digital input data; bit 4
R3 9 RED digital input data; bit 3
R2 10 RED digital input data; bit 2
R1 11 RED digital input data; bit 1
R0 12 RED digital input data; bit 0 (LSB)
G7 13 GREEN digital input data; bit 7 (MSB)
G6 14 GREEN digital input data; bit 6
G5 15 GREEN digital input data; bit 5
G4 16 GREEN digital input data; bit 4
G3 17 GREEN digital input data; bit 3
G2 18 GREEN digital input data; bit 2
G1 19 GREEN digital input data; bit 1
G0 20 GREEN digital input data; bit 0 (LSB)
B7 21 BLUE digital input data; bit 7 (MSB)
B6 22 BLUE digital input data; bit 6
B5 23 BLUE digital input data; bit 5
B4 24 BLUE digital input data; bit 4
B3 25 BLUE digital input data; bit 3
B2 26 BLUE digital input data; bit 2
V

DDD2

27 digital supply voltage 2

V

SSD2

28 digital supply ground 2
B1 29 BLUE digital input data; bit 1
B0 30 BLUE digital input data; bit 0 (LSB)
CLK 31 clock input
V

DDA1

32 analog supply voltage 1
V

REF

33 decoupling input for reference voltage
n.c. 34 not connected
V

DDA2

35 analog supply voltage 2
OUTB 36 BLUE analog output
n.c. 37 not connected
n.c. 38 not connected
V

DDA3

39 analog supply voltage 3
OUTG 40 GREEN analog output

1996 Jan 25 5

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

n.c. 41 not connected
V

SSA2

42 analog supply ground 2
V

DDA4

43 analog supply voltage 4
OUTR 44 RED analog output

SYMBOL PIN DESCRIPTION

Fig.2 Pin configuration.

handbook, full pagewidth

1
2
3
4
5
6
7
8

9
10
11

33
32
31
30
29
28
27
26
25
24
23

12

13

14

15

16

17

18

19

20

21

22

44

43

42

41

40

39

38

37

36

35

34

index
corner

TDA8771A

I

REF

V

SSA1

R7
R6
R5

R4
R3
R2
R1

B6

R0

G7

G6

G5

G4G3G2G1G0

B7

V

SSD2

V

REF

CLK

V

DDA1

V

DDD2
B2
B3
B4

V

DDA2

V

DDA4

V

DDA3

OUTR

n.c.

OUTG

V

SSA2

MBH040

V

SSD1

V

DDD1

B1

B0

B5

n.c.

n.c.

n.c.

OUTB

1996 Jan 25 6

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC134).

THERMAL CHARACTERISTICS

HANDLING

Inputs and outputs are protected against electrostatic discharges in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling integrated circuits.

SYMBOL PARAMETER MIN. MAX. UNIT

V

DDA

analog supply voltage −0.5 +6.5 V

V

DDD

digital supply voltage −0.5 +6.5 V

∆V

DD

supply voltage difference between V

DDA

and V

DDD

−1.0 +1.0 V

T

stg

storage temperature −55 +150 °C

T

amb

operating ambient temperature 0 +70 °C

T

j

junction temperature − +125 °C

SYMBOL PARAMETER VALUE UNIT

R

th j-a

thermal resistance from junction to ambient in free air 75 K/W

1996 Jan 25 7

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

CHARACTERISTICS

V

DDA=VDDD

= 4.5 to 5.5 V; V

SSA

and V

SSD

shorted together; V

DDA

− V

DDD

= −0.5 to +0.5 V; T

amb

= 0 to 70 °C;

typical values measured at V

DDA=VDDD

= 5 V and T

amb

=25°C; unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply

V

DDA

analog supply voltage 4.5 5.0 5.5 V

V

DDD

digital supply voltage 4.5 5.0 5.5 V

I

DDA

analog supply current RL=1kΩ; note 1 10 33 45 mA

I

DDD

digital supply current f

clk

= 35 MHz − 720mA

Inputs

C

LOCK INPUT (PIN 31)

V

IL

LOW level input voltage 0 − 1.2 V

V

IH

HIGH level input voltage 2.0 − V

DDD

V
R, G, B DIGITAL INPUTS (PINS 12 TO 8, 5 TO 3, 20 TO 13, 30, 29 AND 26 TO 21)
V

IL

LOW level input voltage 0 − 1.2 V

V

IH

HIGH level input voltage 2.0 − V

DDD

V

I

REF

REFERENCE CURRENT INPUT FOR OUTPUT BUFFERS (PIN 1)

I

I

input current − 0.6 0.7 mA
Timing; see Fig.3
f

clk(max)

maximum clock frequency 35 −−MHz
t

CPH

clock pulse width HIGH 8 −−ns
t

CPL

clock pulse width LOW 8 −−ns
t

r

clock rise time −−5ns
t

f

clock fall time −−6ns
t

SU;DAT

input data set-up time 4 −−ns
t

HD;DAT

input data hold time 4 −−ns

Voltage reference (pin 33, referenced to V

SSA

)

V

REF

output reference voltage 1.180 1.242 1.305 V

Outputs

OUTB, OUTR, OUTG

ANALOG OUTPUTS (PINS 36, 44 AND 40, REFERENCED TO V

SSA

) FOR 1kΩLOAD; see Table 1

FSR full-scale output voltage range 2.80 2.95 3.10 V
V

os

offset of analog voltage output − 0.25 − V
V

Omax

maximum output voltage data inputs = logic 1;

note 2

2.95 3.20 3.45 V

V

Omin

minimum output voltage data inputs = logic 0;

note 2

0.05 0.25 0.45 V

THD total harmonic distortion f

i

= 4.43 MHz;

f

clk

= 35 MHz

−−44 − dB

Z

L

output load impedance 0.9 1.0 1.1 kΩ

1996 Jan 25 8

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

Notes

1. Minimum and maximum data of current and power consumption are measured in worse case conditions: for
minimum data, all digital inputs are at logic level 0 while for maximum data, all digital inputs are at logic level 1.

2. VO is directly proportional to V

REF

.

Table 1 Input coding and DAC output voltages (typical values)

Transfer function (f

clk

= 35 MHz)

INL integral non-linearity ramp input − 0.5 ±1 LSB
DNL differential non-linearity ramp input − 0.25 ±0.5 LSB

α

ct

crosstalk DAC to DAC −50 −−dB

DAC to DAC matching − 1.0 2.0 %
Switching characteristics (for 1 kΩ output load); see Fig.4
t

d

input to 50% output delay time full-scale change − 12 − ns
t

s1

settling time 10% to 90% of

full-scale change

− 15 − ns

t

s2

settling time to ±1 LSB − 50 − ns

Output transients (glitches)

V

g

area for 1 LSB change − 1 − LSB⋅ns

BINARY INPUT DATA

(SYNC = BLANK = 0)

CODE

DAC OUTPUT VOLTAGES (V)

OUTB, OUTR, OUTG

R

L

=1kΩ

0000 0000 0 0.262
0000 0001 1 0.273

.... .... . .

1000 0000 128 1.731

.... .... . .

1111 1110 254 3.188
1111 1111 255 3.200

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1996 Jan 25 9

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

TIMING

Fig.3 Input timing.

handbook, full pagewidth

HD; DAT

t

data input

clock input

MBB656 - 1

SU; DAT

t

CPL

t

CPH

t

V

IH

V

IL

V

IL

50 %

50 %

stable

Fig.4 Switching timing.

handbook, full pagewidth

MBB662 - 3

clock input

code 1023

code 0

input code
(example of a
full-scale input
data transition)

10 %

50 %

90 %

1 LSB

1 LSB

t

d

s1

t

s2

t

V

o

(1)

714 mV

(code 1023)

54 mV

(code 0)

50 %

1996 Jan 25 10

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

INTERNAL CIRCUITRY

Fig.5 Internal circuitry.

1/1 page = 296 mm (Datasheet)

27 mm

MBB658 - 1

V

DDD

V

SSD

GND

(a)

V

DDA

V

SSA

(b)

DACs
resistor
string

V

(c)

V

DDA

V

SSA

(d)

V

DD

V

DD

V

DD

V

DDA

V

DD

GND

DDA

125 Ω

(typ.)

(a) Digital inputs; pins 3 to 5, 8 to 26 and 29 to 31.
(b) V

REF

; pin 33.

(c) I

REF

; pin 1.

(d) OUTR, G, B; pins 44, 40 and 36.

1996 Jan 25 11

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

APPLICATION INFORMATION

Fig.6 Application diagram.

Analog and digital supplies should be separated and decoupled.
Supplies are not connected internally.
All ground pins must be connected. One ground plane is preferred although it depends on application.
See Figs 7 and 9 for example of anti-aliasing filter.

handbook, full pagewidth

MBH041

V

REF

100 nF

V

SSA

V

DDA2

CLK

B0

B1

V

SSD2

R0 G7 G6 G5 G4 G3 G2 G1 G0 B7

V

DDD1

10 nF

5 V

V

SSD1

R4

R3

R2

R1

V

DDA3

10 nF

5 V

V

SSA2

1

kΩ

n.c.

V

DDA4

10 nF

5 V

V

SSA1

R5

R6

R7

1

2

3

4

5

6

7

8

9

10

11

44 43 42 41 40 39 38 37 36 35 34

12 13 14 15 16 17 18 19 20 21 22

33

32

31

30

29

28

27

26

25

24

23

TDA8771A

1
kΩ

V

SSA

OUTR

V

SSA

OUTG

V

SSA

OUTB

V

SSA

V

DDA1

10 nF

5 V

V

SSA

V

SSD

V

SSA

REF

I

n.c. n.c.

10 nF

5 V

V

SSA

1

kΩ

n.c.

V

DDD2

10 nF

5 V

V

SSD

B2

B3

B4

B5

B6

V

SSA

6.8 kΩ

1996 Jan 25 12

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

Fig.7 Example of anti-aliasing filter for 2.4 V output swing.

handbook, full pagewidth

MBH042

56 pF 150 pF 56 pF

820 Ω

18 pF 18 pF

12 µH 12 µH

analog video output

(R,G or B)

2.4 V (p-p)

Ω125

OUTR (pin 44)

and OUTG (pin 40)

and OUTB (pin 36)

TDA8771A

analog ground

Ω180

Fig.8 Frequency response for filter shown in Fig.7.

1/2 page (Datasheet)

22 mm

01020 40

0

40

120

160

80

MSA693

30

f (MHz)

α

(dB)

Characteristics of Fig.8

• Order 5; adapted CHEBYSHEV

• Ripple ρ≥0.7 dB

• fat−3 dB = 6.2 MHz

• f

NOTCH

= 10.8 MHz.

1996 Jan 25 13

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

Fig.9 Example of anti-aliasing filter for 1.5 V output swing.

handbook, full pagewidth

MBH043

27 pF 68 pF 27 pF

500 Ω

6.8 pF 6.8 pF

27 µH 27 µH

analog video output

(R,G or B)

1.5 V (p-p)

Ω125

OUTR (pin 44)
and OUTG (pin 40)
and OUTB (pin 36)

TDA8771A

analog ground

Ω500

Fig.10 Frequency response for filter shown in Fig.9.

1/2 page (Datasheet)

22 mm

01020 40

0

40

120

160

80

MSA694

30

f (MHz)

i

α

(dB)

Characteristics of Fig.10

• Order 5; adapted CHEBYSHEV

• Ripple ρ≥0.25 dB

• fat−3 dB = 5.6 MHz

• f

NOTCH

= 11.7 MHz.

1996 Jan 25 14

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

PACKAGE OUTLINE

UNIT A1A2A3b

p

cE

(1)

eH

E

LL

p

Zywv θ

REFERENCES

OUTLINE
VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

mm

0.25

0.05

1.85

1.65

0.25

0.40

0.20

0.25

0.14

10.1

9.9

0.8 1.3

12.9

12.3

1.2

0.8

10

0

o

o

0.15 0.10.15

DIMENSIONS (mm are the original dimensions)

Note

1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.

0.95

0.55

SOT307-2

95-02-04
97-08-01

D

(1) (1)(1)

10.1

9.9

H

D

12.9

12.3

E

Z

1.2

0.8

D

e

E

B

11

c

E

H

D

Z

D

A

Z

E

e

v M

A

X

1

44

34

33 23

22

12

y

θ

A

1

A

L

p

detail X

L

(A )

3

A

2

pin 1 index

D

H

v M

B

b

p

b

p

w M

w M

0 2.5 5 mm

scale

QFP44: plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 x 10 x 1.75 mm

SOT307-2

A

max.

2.10

1996 Jan 25 15

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

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

“IC Package Databook”

(order code 9398 652 90011).

Reflow soldering

Reflow soldering techniques are suitable for all QFP
packages.

The choice of heating method may be influenced by larger
plastic QFP packages (44 leads, or more). If infrared or
vapour phase heating is used and the large packages are
not absolutely dry (less than 0.1% moisture content by
weight), vaporization of the small amount of moisture in
them can cause cracking of the plastic body. For more
information, refer to the Drypack chapter in our

“Quality

Reference Handbook”

(order code 9397 750 00192).

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 is not recommended for QFP packages.
This is because of the likelihood of solder bridging due to
closely-spaced leads and the possibility of incomplete
solder penetration in multi-lead devices.

If wave soldering cannot be avoided, the following
conditions must be observed:

• A double-wave (a turbulent wave with high upward

pressure followed by a smooth laminar wave)
soldering technique should be used.

• The footprint must be at an angle of 45° to the board

direction and must incorporate solder thieves
downstream and at the side corners.

Even with these conditions, do not consider wave
soldering the following packages: QFP52 (SOT379-1),
QFP100 (SOT317-1), QFP100 (SOT317-2),
QFP100 (SOT382-1) or QFP160 (SOT322-1).

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.

1996 Jan 25 16

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

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.

1996 Jan 25 17

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

NOTES

1996 Jan 25 18

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

NOTES

1996 Jan 25 19

Philips Semiconductors Product specification

Triple 8-bit video Digital-to-Analog
Converter (DAC)

TDA8771A

NOTES

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Germany: P.O. Box 10 51 40, 20035 HAMBURG,

Tel. [phone], Fax. [phone]

Greece: No. 15, 25th March Street, GR 17778 TAVROS,

Tel. [phone] 911, Fax. [phone]

India: Philips INDIA Ltd, Shivsagar Estate, A Block,

Dr. Annie Besant Rd. Worli, Bombay 400 018
Tel. [phone], Fax. [phone]

Indonesia: Philips House, Jalan H.R. Rasuna Said Kav. 3-4,

P.O. Box 4252, JAKARTA 12950,
Tel. [phone], Fax. [phone]

Ireland: Newstead, Clonskeagh, DUBLIN 14,

Tel. [phone], Fax. [phone]

Italy: PHILIPS SEMICONDUCTORS S.r.l.,

Piazza IV Novembre 3, 20124 MILANO,
Tel. [phone], Fax. [phone]

Japan: Philips Bldg13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,

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, TX 79905,

Tel. [phone], Fax. [phone]

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: Philips Electrical Industries of Pakistan Ltd.,

Exchange Bldg. ST-2/A, Block 9, KDA Scheme 5, Clifton,
KARACHI 75600, Tel. [phone],
Fax. [phone]

Philippines: PHILIPS SEMICONDUCTORS PHILIPPINES Inc.,

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

Portugal: PHILIPS PORTUGUESA, S.A.,

Rua dr. António Loureiro Borges 5, Arquiparque - Miraflores,
Apartado 300, 2795 LINDA-A-VELHA,
Tel. [phone], Fax. [phone]

Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,

Tel. [phone], Fax. [phone]

South Africa: S.A. PHILIPS Pty Ltd.,

195-215 Main Road Martindale, 2092 JOHANNESBURG,
P.O. Box 7430, Johannesburg 2000,
Tel. [phone], Fax. [phone]

Spain: Balmes 22, 08007 BARCELONA,

Tel. [phone], Fax. [phone]

Sweden: Kottbygatan 7, Akalla. S-164 85 STOCKHOLM,

Tel. [phone], Fax. [phone]

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,

Tel. [phone], Fax. [phone]

Taiwan: PHILIPS TAIWAN Ltd., 23-30F, 66, Chung Hsiao West

Road, Sec. 1. Taipeh, Taiwan ROC, P.O. Box 22978,
TAIPEI 100, Tel. [phone], Fax. [phone]

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,

209/2 Sanpavuth-Bangna Road Prakanong,
Bangkok 10260, THAILAND,
Tel. [phone], Fax. [phone]

Turkey:Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,

Tel. [phone], Fax. [phone]

Ukraine: Philips UKRAINE, 2A Akademika Koroleva str., Office 165,

252148 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], Fax. [phone]

Uruguay: Coronel Mora 433, MONTEVIDEO,

Tel. [phone], Fax. [phone]

Internet: http://www.semiconductors.philips.com/ps/
For all other countries apply to: Philips Semiconductors,

International Marketing and Sales, Building BE-p,
P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands,
Telex 35000 phtcnl, Fax. [phone]

SCDS47 © Philips Electronics N.V. 1996

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537021/1100/01/pp20 Date of release: 1996 Jan 25
Document order number: 9397 750 00591