Datasheet TDA5731M-C1 Datasheet (Philips)

DATA SH EET

Product specification
File under Integrated Circuits, IC02

1995 Mar 21

INTEGRATED CIRCUITS

Philips Semiconductors

TDA5731M

Low power VHF, UHF and
hyperband mixer/oscillator for TV
and VCR 3-band tuners

1995 Mar 21 2

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

FEATURES

• Balanced mixer with a common emitter input for band A
(single input)

• 2-pin oscillator for bands A and B

• 3-pin oscillator for band C

• Balanced mixer with a common base input for band B

and C (balanced input)

• Local oscillator buffer output for external synthesizer

• SAW filter preamplifier with a low output impedance to

drive the SAW filter directly

• Electronic band switch.

APPLICATIONS

• 3-band TV tuners

• 3-band TV front-ends

• 3-band VCR tuners

• 3-band VCR front-ends.

GENERAL DESCRIPTION

The TDA5731M is a monolithic integrated circuit that
performs the band A, band B and band C mixer/oscillator
functions in TV and VCR tuners. This low power
mixer/oscillator circuit requires a power supply of 5 V and
is available in a very small package outline. This device
gives the designer the capability to design an economical
and physically small 3-band tuner. The tuner development
time can be drastically reduced by using this device.

In addition, when hyperband is not required, the
TDA5731M may be used in a VHF/UHF tuner with an
appropriate tuned circuit for VHFl and VHFlll in band A and
the tuned circuit of band C for UHF.

QUICK REFERENCE DATA

ORDERING INFORMATION

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

P

supply voltage − 5.0 − V

I

P

supply current − 36 − mA

f

R

frequency range band A 42 − 180 MHz

band B 160 − 470 MHz
band C 430 − 860 MHz

N noise figure band A − 7.5 − dB

band B − 8.0 − dB
band C − 9.0 − dB

IP intermodulation band A −−66 − dB

band B −−66 − dB
band C −−66 − dB

G

v

voltage gain band A − 23 − dB

band B − 34 − dB
band C − 33 − dB

TYPE

NUMBER

PACKAGE

NAME DESCRIPTION VERSION

TDA5731M SSOP20 plastic shrink small outline package; 20 leads; body width 4.4 mm SOT266-1

1995 Mar 21 3

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

BLOCK DIAGRAM

Fig.1 Block diagram.

handbook, full pagewidth

MBE374

BAND A

OSCILLATOR

13

BAND C

OSCILLATOR

26

BAND B

OSCILLATOR

574

MIXER MIXER MIXER

8

BAND B

STAGE

BAND C

STAGE

BAND A

STAGE

DC

STABILIZER

LOCAL

OSCILLATOR

AMPLIFIER

ELECTRONIC

BAND

SWITCH

IF

AMPLIFIER

910

15 20 19 18 17 16 14 13 12 11

band switch

input

TDA5731M

RF

GND

band A

input

band B

inputs

V

P

band C

inputs

band C oscillator

tuned cicuit

band B oscillator

tuned cicuit

IF outputs

local oscillator

amplifier outputs

band A oscillator

tuned cicuit

GND

1995 Mar 21 4

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

PINNING

SYMBOL PIN DESCRIPTION

AOSCIB 1 band A oscillator input base
COSCIB 2 band C oscillator input base
AOSCOC 3 band A oscillator output collector
COSCOC1 4 band C oscillator output

collector 1
BOSCIB 5 band B oscillator input base
COSCOC2 6 band C oscillator output

collector 2
BOSCOC 7 band B oscillator output collector
GND 8 ground (0 V)
IFOUT1 9 IF amplifier output 1
IFOUT2 10 IF amplifier output 2
BS 11 band switch input
LOOUT1 12 local oscillator amplifier output 1
LOOUT2 13 local oscillator amplifier output 2
V

P

14 supply voltage
AIN 15 band A input
BIN1 16 band B input 1
BIN2 17 band B input 2
RFGND 18 ground for RF input
CIN1 19 band C input 1
CIN2 20 band C input 2

Fig.2 Pin configuration.

handbook, halfpage

TDA5731M

MBE373

1
2
3
4
5
6
7
8
9

10

20
19
18
17
16
15
14
13
12
11

CIN2AOSCIB

COSCIB

AOSCOC

COSCOC1

BOSCIB

COSCOC2

BOSCOC

GND
IFOUT1
IFOUT2

CIN1
RFGND
BIN2
BIN1
AIN

V

LOOUT2
LOOUT1
BS

P

1995 Mar 21 5

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

LIMITING VALUES

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

THERMAL CHARACTERISTICS

HANDLING

Human Body Model: GND (8), RFGND (18), V

P

(14) shorted together. Pins 4, 6 and 7 withstand 500 V. All other pins

withstand 2000 V.
Machine Model: GND (8), RFGND (18), VP(14) shorted together. Pins 4, 6 and 7 withstand 50 V. All other pins

withstand 200 V.

IF AMPLIFIER CHARACTERISTICS

V

P

=5V; T

amb

=25°C; differentialy measured at 36 MHz; measured in circuit of Fig.6; unless otherwise specified.

Note

1. All S parameters are referenced to a 50 Ω system.

SYMBOL PARAMETER MIN. MAX/ UNIT

V

P

supply voltage −0.3 +7.0 V

V

SW(max)

maximum switching voltage −0.3 +7.5 V

V

P(op)

operating supply voltage 4.5 5.5 V

V

n(max)

maximum voltage on each pin with a 22 kΩ resistor
connected in series

− 35 V

I

O

output current of each pin to ground −−10 mA

t

sc(max)

maximum short-circuit time (all pins) − 10 s

T

stg

storage temperature −55 +150 °C

T

amb

operating ambient temperature −10 +80 °C

T

j

junction temperature − +150 °C

SYMBOL PARAMETER VALUE UNIT

R

th j-a

thermal resistance from junction to ambient in free air 120 K/W

SYMBOL PARAMETER CONDITIONS MIN.

TYP.

MAX. UNIT

MOD. PHASE

S

22

output reflection coefficient note 1; see Fig.11 −−14 +9 − dB/°

Z

o

output impedance (Rs+Ls)R

s

− 74 −Ω

L

s

− 21 − nH

1995 Mar 21 6

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

CHARACTERISTICS

V

P

=5V; T

amb

=25°C; measured in circuit of Fig.6; unless otherwise specified.

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply (T

amb

= −10 to +80 °C; VP= 4.5 to 5.5 V)

V

P

supply voltage 4.5 5.0 5.5 V

I

P

supply current 28 36 44 mA

V

SW

switching voltage (depending
on supply voltage VP)

band A 0 − 0.18VPV
band B 0.26V

P

− 0.47VPV

band C 0.55V

P

− V

P

V

I

SW

switching current band A −−2µA

band B −−10 µA
band C −−25 µA

Band A mixer (including IF amplifier)

f

R

frequency range 42 − 180 MHz

N noise figure f

i

= 50 MHz; see Fig.3 − 7.5 9 dB

f

i

= 180 MHz; see Fig.3 − 910 dB

g

os

optimum source
conductance for minimum
noise figure

fi=50MHz − 0.5 − mS
f

i

= 180 MHz − 1.1 − mS

Y

I

input admittance (GP//CP)f

i

= 50 MHz; see Fig.7 − 0.27 − mS

f

i

= 180 MHz; see Fig.7 − 0.34 − mS

f

i

= 50 to 180 MHz; see Fig.7 − 1.9 − pF

IP3 intermodulation using the

3 signals method

f

N

= 180 MHz; note 1 −−66 −60 dB

V

i

input voltage 10 kHz pulling in channel;

fi= 180 MHz

96 100 − dBµV

G

v

voltage gain 20log(V

9-10/V15

); fi= 50 MHz;

note 2

20.5 23 25.5 dB

20log(V

9-10/V15

); fi= 180 MHz;

note 2

20.5 23 25.5 dB

Band A oscillator

f

R

frequency range T

amb

= −10 to +80 °C;
VP= 4.5 to 5.5 V;
V

tune

= 0.45 to 28 V

80 − 210 MHz

f

shift

frequency shift ∆Vp= ±5%; note 3 −−200 kHz

χ

ripple(p-p)

ripple susceptibility of supply
voltage (peak-to-peak value)

fi= 80 MHz; note 4 20 −− mV

f

ripple(p-p)

frequency ripple
(peak-to-peak value)

from 20 Hz to 500 kHz;
fi= 210 MHz

20 −− mV

f

drift

frequency drift without compensation:

notes 5 and 6

−−600 kHz

5 s to 15 min after switching on;
without compensation: note 7

−−200 kHz

1995 Mar 21 7

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

Band B mixer (including IF amplifier); measurements using hybrid; note 8
f

R

frequency range 160 − 470 MHz

N noise figure

(not corrected for image)

f

i

= 170 MHz − 8.0 10 dB

f

i

= 470 MHz − 8.0 10 dB

Z

I

input impedance (Rs+Ls)fi= 160 to 470 MHz; see Fig.8 − 23 −Ω

f

i

= 160 to 470 MHz; see Fig.8 − 10 − nH

IP3 intermodulation using the

3 signal method

f

N

= 170 MHz; note 1 −−66 −60 dB

f

N

= 470 MHz; note 1 −−66 −60 dB

V

i

input voltage fi= 470 MHz; 10 kHz pulling;

in channel

83 87 − dBµV

N+5−1 MHz pulling;
f

i

= 470 MHz; note 9

− 62 − dBµV

G

v

voltage gain fi= 170 MHz; note 2 31 34 37 dB

f

i

= 470 MHz; note 2 31 34 37 dB

Band B oscillator

f

R

frequency range T

amb

= −10 to +80 °C;
VP= 4.5 to 5.5 V;
V

tune

= 0.45 to 28 V

205 − 490 MHz

f

shift

frequency shift ∆VP= ±5%; note 3 −−400 kHz

χ

ripple(p-p)

ripple susceptibility of supply
voltage (peak-to-peak value)

fi= 205 MHz; note 8 20 −− mV

f

ripple(p-p)

frequency ripple
(peak-to-peak value)

from 20 Hz to 500 kHz;
fi= 490 MHz

10 −− mV

f

drift

frequency drift without compensation;

notes 5 and 6

−−2 MHz

5 s to 15 min after switching on;
without compensation; note 7

−−300 kHz

Band C mixer (including IF amplifier); measurements using hybrid; note 8
f

R

frequency range 430 − 860 MHz

N noise figure

(not corrected for image)

f

i

= 430 MHz − 911 dB

f

i

= 860 MHz − 911 dB

Z

I

input impedance (Rs + Ls)fi= 430 MHz; see Fig.9 − 34 −Ω

f

i

= 860 MHz; see Fig.9 − 45 −Ω

f

i

= 430 to 860 MHz; see Fig.9 − 9 − nH

IP3 intermodulation using the

3 signal method

f

N

= 430 MHz; note 1 −−66 −60 dB

f

N

= 860 MHz; note 1 −−66 −60 dB

V

i

input voltage 10 kHz pulling in channel;

fi= 860 MHz; note 2

83 87 − dBµV

N+5−1 MHz pulling;
f

i

= 860 MHz; note 9

− 61 − dBµV

G

v

voltage gain fi= 430 MHz; note 2 30 33 36 dB

f

i

= 860 MHz; note 2 30 33 36 dB

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1995 Mar 21 8

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

Notes

1. Cross modulation measurement is achieved using the 3 equal signals method (see Fig.4).

2. The gain is defined as the transducer gain (measured in Fig.8) plus the voltage transformation ratio of L7 to L8
(5 : 1, 15.4 dB).

3. The frequency shift is defined as a change in oscillator frequency for a variation of supply voltage. In one instance
VP= 5 to 4.75 V and in the other instance VP= 5 to 5.25 V. In both cases, the frequency shift is below the specified
value.

4. The frequency ripple susceptibility is measured at 500 kHz at the LO output (see Fig.5). The level of the ripple signal
is increased until a difference of 53.5 dB is reached at the IF output.

5. The frequency drift is defined as the change in oscillator frequency for a variation of ambient temperature, on the one
hand from T

amb

=25°C to T

amb

=0°C and on the other hand from T

amb

=25°C to T

amb

=50°C.

6. The capacitors in the oscillator circuits of Fig.8 are as follows:
a) Band A: C1, C5 and C7.
b) Band B: C4 and C9 and C11.
c) Band C: C2, C3, C6, C8 and C10 are NP0 types.

7. Switching on drift is the change in oscillator frequency between 5 seconds and 15 minutes after switching on.

8. The values have been corrected for hybrid and cable losses. The symmetrical output impedance of the circuit is
100 Ω.

Band C oscillator

f

R

frequency range T

amb

= −10 to +80 °C;
VP= 4.5 to 5.5 V;
V

tune

= 0.45 to 28 V

485 − 900 MHz

f

shiift

frequency shift ∆VP= ±5%; note 3 −−400 kHz

χ

ripple(p-p)

ripple susceptibility of supply
voltage (peak-to-peak value)

fi= 485 MHz; note 4 20 −− mV

f

ripple(p-p)

frequency ripple
(peak-to-peak value)

from 20 Hz to 500 kHz;
f

i

= 900 MHz

10 −− mV

f

drift

frequency drift without compensation;

notes 5 and 6

−−2.5 MHz

5 s to 15 min after switching on;
without compensation; note 7

−−600 kHz

LO output

Y

O

output admittance (GP//CP)fi= 80 MHz; see Fig.10 − 2.4 − mS

f

i

= 80 MHz; see Fig.10 − 0.9 − pF

f

i

= 900 MHz; see Fig.10 − 4.6 − mS

f

i

= 900 MHz; see Fig.10 − 0.9 − pF

V

o

output voltage RL=50Ω; T

amb

= −10 to +80 °C;

VP= 4.5 to 5.5 V;

80 91 100 dBµV

SRF spurious signal on LO output

with respect to LO output
signal

R

L

=50Ω; T

amb

= −10 to +80 °C;

VP= 4.5 to 5.5 V; note 10

−−−10 dB

HLO LO signal harmonics with

respect to LO signal

R

L

=50Ω; T

amb

= −10 to +80 °C;

VP= 4.5 to 5.5 V;

−−−10 dB

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

1995 Mar 21 9

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

9. The input level of a N + 5 − 1 MHz signal which gives a signal 30 dB below the oscillator carrier at the LO output.

10. Measured at 50 Ω with the following RF input voltages;
a) RF voltage level = 120 dBµV at fi< 180 MHz.
b) RF voltage level = 107.5 dBµV at fi= 180 to 225 MHz.
c) RF voltage level = 97 dBµV at fi= 225 to 860 MHz.

Fig.3 Input circuit for optimum noise figure.

(a) For fR= 50 MHz:

mixer A frequency response measured = 57 MHz, loss = 0 dB
image suppression = 16 dB
C1 = 9 pF
C2=15pF
L1 = 7 turns (∆ 5.5 mm, wire dia. = 0.5 mm)
l1 = rigid cable (RIM): 5 cm long

(rigid cable (RIM); 33 dB/100 m; 50 Ω, 96 pF/m).

handbook, full pagewidth

MBE286 - 1

L1 C2

C1

PCB

plug plug

BNC BNC

RIM-RIM

I1

C4

C3

PCB

RIM-RIM

I3

I2

(a) (b)

(b) For fR= 180 MHz:

mixer A frequency response measured = 150.3 MHz, loss = 1.3 dB
image suppression = 13 dB
C3 = 5 pF
C4=25pF
l2 = rigid cable (RIM): 30 cm long
l3 = rigid cable (RIM): 5 cm long

(rigid cable (RIM); 33 dB/100 m; 50 Ω; 96 pF/m).

1995 Mar 21 10

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

Fig.4 Cross modulation/incidental FM measurement.

book, full pagewidth

MBE375

TDA5731

f

n 1

0.5 MHz 0.5 MHz

f

IF

1 MHz 1 MHz

f

n

out of specification

66 dB specified

within specification

105 dBµV

Fig.5 Ripple susceptibility measurement.

handbook, full pagewidth

MBE376

MEASUREMENT

TEST CIRCUIT

OF FIG. 14

f

o

500 kHz 500 kHz

to
spectrum
analyser

ripple
signal

47 Ω

100 µF100 µF

6.8 kΩ

DC supply

V

P

1995 Mar 21 11

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

Fig.6 Reference measurement set-up.

handbook, full pagewidth

MBE377

BAND A

OSCILLATOR

13

BAND C

OSCILLATOR

26

BAND B

OSCILLATOR

574

MIXER MIXER MIXER

8

BAND B

STAGE

BAND C

STAGE

BAND A

STAGE

DC

STABILIZER

LOCAL

OSCILLATOR

AMPLIFIER

ELECTRONIC

BAND

SWITCH

IF

AMPLIFIER

910

15 20 19 18 17 16 14 13 12 11

TDA5731M

C12

C13

C14

C15

C17

C18

L5

C19 C20

R8

HYBRID

ANZAC-183-4

C21

R10

R11

ABC

to

pre-stages

5 V

50 Ω

output

HYBRID

ANZAC-183-4

C16

5 V

C30 C31

C22 C23

C3

D2

L3

C2

L2

C6 C8 C10

L1

D1

C1

R1

R2 R4

D3

C4

R5

L4

R6

C9 C11C5 C7

C28 C27 C26 C25 C29

R7

V

t

L6

L7

IF output

50 Ω

spectrum

analyser

MEASUREMENT

NETWORK

C24

50 Ω 50 Ω 50 Ω 50 Ω

50 Ω

1995 Mar 21 12

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

Components values for Fig.8
Table 1 Capacitors

(all SMD and NP0 except C28)

NUMBER VALUE

C1 82 pF
C2 5.6 pF
C3 100 pF
C4 100 pF
C5 2.2 pF
C6 1 pF
C7 2.2 pF
C8 1 pF
C9 2.2 pF
C10 2.2 pF
C11 2.7 pF
C12 1 nF
C13 1 nF
C14 1 nF
C15 1 nF
C16 1 nF
C17 10 nF
C18 10 nF
C19 1 nF
C20 1 nF
C21 1 nF
C22 1 nF
C23 1 nF
C24 18 pF
C25 1 nF
C26 1 nF
C27 1 nF
C28 150 nF
C29 1 nF
C30 3 pF
C31 3 pF

Table 2 Resistors (all SMD)

Table 3 Diodes and coils

Note

1. Wire size for L1 to L4 is 0.4 mm

Transformers (L6 = 2 × 5 turns and L7 = 2 turns))

Coil type: TOKO 7kN; material: 113kN, screw core
(03-0093), pot core (04-0026).

NUMBER VALUE

R1 47 kΩ
R2 24 kΩ
R4 24 kΩ
R5 47 kΩ
R6 15 Ω
R7 10 kΩ
R8 100 Ω
R10 15 kΩ
R11 27 kΩ

NUMBER VALUE

Diodes

D1 BB132
D2 BB134
D3 BB133

Coils

(1)

L1 7.5 turns (3 mm)
L2 2.5 turns (3.5 mm)
L3 1.5 turns (2.5 mm)
L4 1.5 turns (4 mm)
L5 2.2 µH (choke coil)

1995 Mar 21 13

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

Fig.7 Input admittance (S11) of the band A mixer input (40 to 200 MHz) (Y chart).

handbook, full pagewidth

0.2

0.5

1

2

5

10

∞

0.2

0.5

1

2

5

10

0

+ j

– j

10

MCD517

0.5 10.2 52

40 MHz

200 MHz

Fig.8 Input impedance (S11) of the band B mixer input (170 to 470 MHz) (Z chart).

handbook, full pagewidth

0.2

0.5

1

2

5

10

∞

0.2

0.5

1

2

5

10

0

+ j

– j

170 MHz

MCD518

0.5 10.2 1052

470 MHz

1995 Mar 21 14

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

Fig.9 Input impedance (S11) of the band C mixer input (460 to 880 MHz) (Z chart).

handbook, full pagewidth

0.2

0.5

1

2

5

10

∞

0.2

0.5

1

2

5

10

0

+ j

– j

860 MHz

MCD521

0.5 10.2 1052

430 MHz

Fig.10 Output admittance (S22) of the IF amplifier (80 to 900 MHz) (Y chart).

handbook, full pagewidth

0.2

0.5

1

2

5

10

∞

0.2

0.5

1

2

5

10

0

+ j

– j

MCD522

80 MHz

900 MHz

0.5 10.2 1052

1995 Mar 21 15

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

Fig.11 Output reflection coefficient (S22) of the LO amplifier (25 to 45 MHz) (Z chart).

handbook, full pagewidth

0.2

0.5

1

2

5

10

∞

0.2

0.5

1

2

5

10

0

+ j

– j

MCD523

0.5 10.2 1025

45 MHz

25 MHz

1995 Mar 21 16

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

PACKAGE OUTLINE

UNIT A1A2A

3

b

p

cD

(1)E(1)

(1)

eHELLpQZywv θ

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

mm

0.1501.4

1.2

0.32

0.20

0.20

0.13

6.6

6.4

4.5

4.3

0.65 1.0 0.2

6.6

6.2

0.65

0.45

0.48

0.18

10

0

o

o

0.13 0.1

DIMENSIONS (mm are the original dimensions)

Note

1. Plastic or metal protrusions of 0.20 mm maximum per side are not included.

0.75

0.45

SOT266-1

90-04-05
95-02-25

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

X

(A )

3

A

y

0.25

110

20

11

pin 1 index

0 2.5 5 mm

scale

SSOP20: plastic shrink small outline package; 20 leads; body width 4.4 mm

SOT266-1

A

max.

1.5

1995 Mar 21 17

Philips Semiconductors Product specification

Low power VHF, UHF and hyperband
mixer/oscillator for TV and VCR 3-band tuners

TDA5731M

SOLDERING
Plastic small outline packages

B

YWAVE

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

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

A modified wave soldering technique is recommended
using two solder waves (dual-wave), in which a turbulent
wave with high upward pressure is followed by a smooth
laminar wave. Using a mildly-activated flux eliminates the
need for removal of corrosive residues in most
applications.

B

Y SOLDER PASTE REFLOW

Reflow soldering requires the solder paste (a suspension
of fine solder particles, flux and binding agent) to be

applied to the substrate by screen printing, stencilling or
pressure-syringe dispensing before device placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt, infrared, and
vapour-phase reflow. Dwell times vary between 50 and
300 s according to 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 min at 45 °C.

R

EPAIRING SOLDERED JOINTS (BY HAND-HELD SOLDERING

IRON OR PULSE

-HEATED SOLDER TOOL)

Fix the component by first soldering two, diagonally
opposite, end pins. Apply the heating tool to the flat part of
the pin only. Contact time must be limited to 10 s at up to
300 °C. When using proper tools, all other pins can be
soldered in one operation within 2 to 5 s at between 270
and 320 °C. (Pulse-heated soldering is not recommended
for SO packages.)

For pulse-heated solder tool (resistance) soldering of VSO
packages, solder is applied to the substrate by dipping or
by an extra thick tin/lead plating before package
placement.

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.