Datasheet TDA1308T, TDA1308 Datasheet (Philips)

INTEGRATED CIRCUITS

DATA SH EET

TDA1308

Class AB stereo headphone driver

Product specification
File under Integrated Circuits, IC01

Philips Semiconductors

August 1994

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

FEATURES

• Wide temperature range

• No switch ON/OFF clicks

• Excellent power supply ripple rejection

• Low power consumption

GENERAL DESCRIPTION

The TDA1308 is an integrated class AB stereo headphone
driver contained in an SO8 or a DIP8 plastic package. The
device is fabricated in a 1 mm CMOS process and has
been primarily developed for portable digital audio
applications.

• Short-circuit resistant

• High performance

– high signal-to-noise ratio
– high slew rate
– low distortion

• Large output voltage swing.

QUICK REFERENCE DATA

=5V; VSS=0V; T

V

DD

=25°C; fi= 1 kHz; RL=32Ω; unless otherwise specified.

amb

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

DD

supply voltage

single 3.0 5.0 7.0 V
dual 1.5 2.5 3.5 V

V

SS

I

DD

P

tot

P

o

(THD + N)/S total harmonic distortion plus

negative supply voltage −1.5 −2.5 −3.5 V
supply current no load − 35mA
total power dissipation no load − 15 25 mW
maximum output power THD < 0.1%; note 1 − 60 − mW

note 1

noise-to-signal ratio

− 0.03 0.06 %

−−70 −65 dB

R

=5kΩ−−101 − dB

L

S/N signal-to-noise ratio 100 110 − dB

α

cs

PSRR power supply ripple rejection f
T

amb

channel separation − 70 − dB

R

= 5 kΩ−105 − dB

L

operating ambient

= 100 Hz; V

i

ripple(p-p)

= 100 mV − 90 − dB

−40 − +85 °C

temperature

Note

1. V

= 5 V; V

DD

= 3.5 V (at 0 dB).

O(p-p)

ORDERING INFORMATION

PACKAGE

TYPE NUMBER

NAME DESCRIPTION VERSION

TDA1308 DIP8 plastic dual in-line package; 8 leads (300 mil) SOT97-1

TDA1308T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1

August 1994 2

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

BLOCK DIAGRAM

PINNING

SYMBOL PIN DESCRIPTION

OUTA 1 output A
INA(neg) 2 inverting input A
INA(pos) 3 non-inverting input A
V

SS

INB(pos) 5 non-inverting input B
INB(neg) 6 inverting input B
OUTB 7 output B
V

DD

4 negative supply

8 positive supply

Fig.1 Block diagram.

Fig.2 Pin configuration.

August 1994 3

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

August 1994 4

Fig.3 Equivalent schematic diagram.

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

LIMITING VALUES

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

SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT

V

DD

t

SC(O)

T

stg

T

amb

V

esd

Notes

1. Human body model: C = 100 pF; R = 1500 Ω; 3 pulses positive plus 3 pulses negative.

2. Machine model: C = 200 pF: L = 0.5 mH: R = 0 Ω; 3 pulses positive plus 3 pulses negative.

THERMAL CHARACTERISTICS

supply voltage 0 8.0 V
output short-circuit duration T

=25°C; P

amb

=1W 20 − s

tot

storage temperature −65 +150 °C
operating ambient temperature −40 +85 °C
electrostatic discharge note 1 −2000 +2000 V

note 2 −200 +200 V

SYMBOL PARAMETER VALUE UNIT

R

th j-a

thermal resistance from junction to ambient in free air

DIP8 109 K/W

SO8 210 K/W

QUALITY SPECIFICATION

In accordance with

Handbook”

. The handbook can be ordered using the code 9398 510 63011.

“UZW-BO/FQ-0601”

. The numbers of the quality specification can be found in the

“Quality Reference

August 1994 5

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

CHARACTERISTICS

=5V; VSS=0V; T

V

DD

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supplies

V

DD

supply voltage

single 3.0 5.0 7.0 V
dual 1.5 2.5 3.5 V

V

SS

I

DD

P

tot

negative supply voltage −1.5 −2.5 −3.5 V
supply current no load − 35mA
total power dissipation no load − 15 25 mW

DC characteristics

V

I(os)

I

bias

V

CM

G

v

I

O

R

O

V

O

input offset voltage − 10 − mV
input bias current − 10 − pA
common mode voltage 0 − 3.5 V
open-loop voltage gain RL=5kΩ−70 − dB
maximum output current (THD + N)/S < 0.1% − 60 − mA
output resistance − 0.25 −Ω
output voltage swing note 1 0.75 − 4.25 V

PSRR power supply rejection ratio f

α

cs

C

L

channel separation − 70 − dB

load capacitance −−200 pF

AC characteristics

(THD + N)/S total harmonic distortion plus

noise-to-signal ratio

S/N signal-to-noise ratio 100 110 − dB
f

G

P

o

C

i

unity gain frequency open-loop; RL=5kΩ− 5.5 − MHz
maximum output power (THD + N)/S < 0.1% − 60 − mW

input capacitance − 3 − pF
SR slew rate unity gain inverting − 5 − V/µs
B power bandwidth unity gain inverting − 20 − kHz

=25°C; fi= 1 kHz; RL=32Ω; unless otherwise specified.

amb

R

=16Ω; note 1 1.5 − 3.5 V

L

R

=5kΩ; note 1 0.1 − 4.9 V

L

= 100 Hz;

i

V

ripple(p-p)

R

L

= 100 mV

=5kΩ−105 − dB

− 90 − dB

note 2 −−70 −65 dB

− 0.03 0.06 %

note 2; R

=5kΩ−−101 − dB

L

− 0.0009 − %

Notes

1. Values are proportional to V

2. VDD= 5.0 V; V

= 3.5 V (at 0 dB).

O(p-p)

; (THD + N)/S < 0.1%.

DD

August 1994 6

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

TEST AND APPLICATION INFORMATION

Fig.4 Measurement circuit for inverting application.

Fig.5 Example of application with TDA1545A (stereo continuous calibration DAC).

August 1994 7

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

Fig.6 Open-loop gain as a function of input

frequency.

Fig.7 Crosstalk as a function of input

frequency.

Fig.8 Output power as a function of supply

voltage.

August 1994 8

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

Fig.9 Total harmonic distortion plus noise-to-signal ratio as a function of input frequency.

Fig.10 Total harmonic distortion plus noise-to-signal ratio as a function of output voltage level.

August 1994 9

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

PACKAGE OUTLINES

handbook, full pagewidth

seating plane

3.60

3.05

1.15
max

9.8

9.2

3.2

4.2

max

max

0.51
min

2.54
(3x)

1.73 max

8

0.53
max

5

41

0.254 M

6.48

6.20

0.38 max

8.25

7.80

7.62

10.0

8.3

MSA252 - 1

Dimensions in mm.

Fig.11 Plastic dual in-line package; 8 leads (300 mil); DIP8; SOT97-1.

August 1994 10

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

handbook, full pagewidth

pin 1

index

0.7

0.3

8

1

1.27

5.0

4.8

0.49

0.36

4.0

3.8

0.1 SS

5

1.45

1.25

4

0.25 M
(8x)

6.2

5.8

0.25

0.10

detail A

1.0

0.5

0.7

0.6

A

0.25

0.19

0 to 8

MBC180 - 1

1.75

1.35

o

Dimensions in mm.

Fig.12 Plastic small outline package; 8 leads; body width 3.9 mm. (SO8; SOT96-1).

August 1994 11

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

SOLDERING
Plastic dual in-line packages

Y DIP OR WAVE

B
The maximum permissible temperature of the solder is

260 °C; this temperature must not be in contact with the
joint for more than 5 s. The total contact time of successive
solder waves must not exceed 5 s.

The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified storage maximum. If the printed-circuit board has
been pre-heated, forced cooling may be necessary
immediately after soldering to keep the temperature within
the permissible limit.

R

EPAIRING SOLDERED JOINTS

Apply the soldering iron below the seating plane (or not
more than 2 mm above it). If its temperature is below
300 °C, it must not be in contact for more than 10 s; if
between 300 and 400 °C, for not more than 5 s.

Plastic small outline packages

YWAVE

B
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.

Y SOLDER PASTE REFLOW

B
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.

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.

August 1994 12

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

DEFINITIONS

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.

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.

August 1994 13

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

NOTES

August 1994 14

Philips Semiconductors Product specification

Class AB stereo headphone driver TDA1308

NOTES

August 1994 15

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