Datasheet TDA1523 Datasheet (Philips)

INTEGRATED CIRCUITS

DATA SH EET

TDA1523

Stereo cassette head
preamplifier and equalizer

Preliminary specification
File under Integrated Circuits, IC01

1996 Feb 26

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

FEATURES

• Two independent amplifiers with open-loop gain of
90 dB (typical)

• Internal DC feedback via 140 kΩ resistor from output to
feedback point

• AC characteristics that can be determined externally by
an RC network

• Electronic on/off switching with transient suppression for
switch on

• Head input at DC ground that eliminates the input
coupling capacitor

• Minimum external component requirement

• Stability down to a gain of 30 dB

• Low input noise

• Low distortion

• DC input current <2 µA.

TDA1523

GENERAL DESCRIPTION

The TDA1523 is a playback amplifier for car radio/cassette
players.

QUICK REFERENCE DATA

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

V

P

I

P

T

amb

THD total harmonic distortion − 0.05 − %

α

cs

ORDERING INFORMATION

TYPE

NUMBER

TDA1523 DIP14 plastic dual in-line package; 14 leads (300 mil) SOT27-1

supply voltage (pin 7) 7.5 − 12 V
supply current (pin 7) − 5 − mA
operating ambient temperature −30 − +85 °C

channel separation RS=10kΩ; LS=0 45 −−dB

PACKAGE

NAME DESCRIPTION VERSION

1996 Feb 26 2

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

BLOCK DIAGRAM

handbook, full pagewidth

C102

220

µF

V

i1

V

i2

C202

220

µF

R102

8.2 Ω

R = 300 Ω

S1

L = 80 mH

S1

MUTE

R = 300 Ω

S2

L = 80 mH

S2

8.2 Ω

R101

5.6 kΩ

feedback 1

2
3

1

5
6

feedback 2

R201R202

5.6 kΩ

TDA1523

140 kΩ

R

fb1

AMP 1

SUPPLY

&

MUTE

AMP 2

R

fb2

140 kΩ

C101

22 nF

C201

22 nF

TDA1523

C

c1

14

4

7

8

output 1

10 µF

C

c2

output 2

10 µF

V

P

MGC988

R

L1

4.7 kΩ

R

L2

4.7 kΩ

V

o1

V

o2

Fig.1 Block diagram with external components; also used as test circuit.

1996 Feb 26 3

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

PINNING

SYMBOL PIN DESCRIPTION

MUTE 1 mute input
FB1 2 feedback 1
V

i1

GND 4 ground
V

i2

FB2 6 feedback 2
V

P

V

o2

n.c. 9 not connected
n.c. 10 not connected
n.c. 11 not connected
n.c. 12 not connected
n.c. 13 not connected
V

o1

3 input voltage 1

5 input voltage 2

7 power supply
8 output voltage 2

14 output voltage 1

handbook, halfpage

1

MUTE

2

FB1

3

V

i1

4

GND

V

FB2

V

TDA1523

5

i2

6
7

P

MGC989

Fig.2 Pin configuration.

TDA1523

14

V

o1

13

n.c.

12

n.c.

11

n.c.

10

n.c.

9

n.c.

8

V

o2

1996 Feb 26 4

Philips Semiconductors Preliminary specification

Stereo cassette head

TDA1523

preamplifier and equalizer

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134); note 1.

SYMBOL PARAMETER MIN. MAX. UNIT

V

P

I

fb

P

tot

T

amb

T

stg

Note

1. All pins except 2 and 6 (feedback) can be connected to VP (pin 7) or ground (pin 4).

CHARACTERISTICS

V

= 8.5 V; T

P

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Supply (pin 7)

V

P

I

P

Inputs (pins 3 or 5)

V

ni(rms)

V

ni

I

ni

, I

I

3

5

Z

 input impedance f = 1 kHz; note 1 200 −−kΩ

i

Outputs (pins 14 or 8); see Fig.7
V

o

I

O

V

O

V

no(rms)

V

no

V

no

Z

 output impedance f = 1 kHz; note 1 −−1kΩ

o

supply voltage (pin 7) 7.5 12 V
feedback current (pins 2 and 6) − 10 mA
total power dissipation − 300 mW
operating ambient temperature −30 +85 °C
storage temperature −55 +150 °C

=25°C; see test circuit Fig.1; unless otherwise specified.

amb

supply voltage 7.5 − 12 V
supply current − 5 − mA

unweighted noise input voltage
(RMS value)

noise input voltage RS= 0; f = 1 kHz; measured

f = 20 Hz to 20 kHz;
measured in Fig.3

− 1.6 −

− 5 −

in Fig.3; see also Fig.5

noise input current f = 1 kHz; measured in Fig.3;

− 1.2 −

see also Fig.6

DC input current at pins 3 and 5 −−−2µA

output voltage Vi= 0.3 mV; f = 315 Hz − 0.72 − V

THD = 1%; f = 1 kHz 1.0 −−V

output source current V

≥ 7.5 V; mute off −5 −10 − mA

1-4

DC output voltage − 3.7 − V
weighted noise output voltage;

RS= 300 Ω; LS=80mH − 700 −µV

DIN A (RMS value)
weighted noise output voltage

CCITT (peak value) R
CCIR (peak value) R

unweighted noise output voltage;

= 300 Ω; LS=80mH − 1200 −µV

S

= 300 Ω; LS=80mH − 1600 −µV

S

RS= 300 Ω; LS=80mH − 1800 −µV

DIN 45405 (peak value)

µV

nV

----------- ­Hz

pA

----------- ­Hz

1996 Feb 26 5

Philips Semiconductors Preliminary specification

Stereo cassette head

TDA1523

preamplifier and equalizer

SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT

Mute on/off (pin 1); see Fig.4

V

mute(on)

I

mute(on)

V

mute(off)

General

R

fb

G

v

α

cs

PSRR power supply ripple rejection V

THD total harmonic distortion f = 1 kHz; V

Notes

1. Applies to each amplifier.

2. Frequency range 300 Hz to 20 kHz.

3. Referred to the input.

4. Measured selective.

mute on voltage mute switch closed 0 − 1V
mute on current mute switch closed or

V

=0V

1-4

mute off voltage mute switch open 7.5 − V

− 2.7 −µA

P

internal feedback resistor note 1 100 140 180 kΩ
open-loop voltage gain f = 315 Hz; note 1 − 90 − dB
channel separation RS=10kΩ; LS= 0; note 2 45 −−dB

= 0.1 V; f = 100 Hz;

P(rms)

90 95 − dB

note 3

= 0.3 V; note 4 − 0.05 − %

o

V

handbook, full pagewidth

R

&

MUTE

R

C101

10 µF

140 kΩ

fb1

14

fb2

140 kΩ

C201

10 µF

C102

1000

µF

V

i1

V

i2

C202
1000

µF

R102

8.2 Ω

R

4.7 kΩ

R

4.7 kΩ

8.2 Ω

S1

S2

R101

9.1 kΩ

feedback 1

2
3

1

5
6

feedback 2

R201R202

9.1 kΩ

TDA1523

AMP 1

SUPPLY

AMP 2

Fig.3 Test circuit for noise measurement.

C

c1

output 1

4

7

8

10 µF

C

c2

output 2

10 µF

V

P

MGC990

R

L1

4.7 kΩ

R

L2

4.7 kΩ

V

o1

V

o2

1996 Feb 26 6

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

handbook, halfpage

0

V

o

(dB)

20

40

60

80

100

0246

MGC991

V (V)

1 4

TDA1523

Fig.4 Muting depth as a function of control voltage

at pin 1.

2

10

handbook, full pagewidth

V

ni

(nV/ Hz)

10

1

10

(1) RS=10kΩ.
(2) RS=5kΩ.
(3) RS=0.

2

10

MLD340

(1)

(2)

(3)

3

10

4

10

f (Hz)

5

10

Fig.5 Noise input voltage as a function of frequency.

1996 Feb 26 7

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

10

handbook, full pagewidth

I

ni

(pA/ Hz)

1

1

10

10

2

10

TDA1523

MLD341

3

10

4

10

f (Hz)

5

10

20

handbook, full pagewidth

g

f

g

315 Hz

(dB)

10

0

10

20

30

10

Fig.6 Noise input current as a function of frequency.

2

10

3

10

10

MLD342

4

f (Hz)

5

10

Fig.7 Frequency response curve for the circuit in Fig.1.

1996 Feb 26 8

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

PRINTED-CIRCUIT BOARD

handbook, full pagewidth

V

o2

V

P

SM

MUTE

V

o1

RM

TDA1523

65

RM1

R201

R101

D201

R202

R102

D101

RS2

C202
C102

RS1

V

i2

V

i1

MGC994

45

C

R

C2

L2

R

L1

CVP1

C

C1

C201

IC1

C101

CM

Fig.8 Printed-circuit board component side, showing component layout of Fig.1 and/or Fig.10.

1996 Feb 26 9

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

APPLICATION INFORMATION

handbook, full pagewidth

V

i1

V

i2

MUTE

SWITCH

C102

220

µF

R = 300 Ω

S1

L = 80 mH

S1

R = 300 Ω

S2

L = 80 mH

S2

R

m

150 kΩ

1 µF

C202

220

µF

R102

8.2 Ω

8.2 Ω

R101

5.6 kΩ

feedback 1

2
3

1

5
6

feedback 2

R201R202

5.6 kΩ

TDA1523

140 kΩ

R

fb1

AMP 1

SUPPLY

&

MUTE

AMP 2

R

fb2

140 kΩ

C101

22 nF

C201

22 nF

TDA1523

C

c1

14

4

7

8

output 1

10 µF

C

c2

output 2

10 µF

V

P

MGC992

R

L1

4.7 kΩ

R

L2

4.7 kΩ

V

o1

V

o2

Fig.9 Simple mute application.

1996 Feb 26 10

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

handbook, full pagewidth

V

i1

V

i2

MUTE

SWITCH

R = 300 Ω

R = 300 Ω

C102

220

µF

S1

L = 80 mH

S1

S2

L = 80 mH

S2

68 kΩ

68

2.2

kΩ

µF

R102

8.2 Ω

R202

8.2 Ω
C202

220 µF

R101

5.6 kΩ

feedback 1

2
3

1

5
6

feedback 2

R201

5.6 kΩ

1N4148

TDA1523

140 kΩ

R

fb1

AMP 1

SUPPLY

&

MUTE

AMP 2

R

fb2

140 kΩ

1N4148

C101

22 nF

C201

22 nF

TDA1523

C

c1

10 µF

C

c2

10 µF

output 1

R

4.7 kΩ

output 2

R

4.7 kΩ

V

o1

L1

V

o2

L2

14

4

7

8

V

P

Fig.10 Application for plop-free muting.

MGC993

1996 Feb 26 11

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

PACKAGE OUTLINE

DIP14: plastic dual in-line package; 14 leads (300 mil)

D

seating plane

L

Z

14

e

b

TDA1523

SOT27-1

M

E

A

2

A

A

1

w M

b

1

8

c

(e )

1

M

H

pin 1 index

1

0 5 10 mm

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

A

A

A

UNIT

inches

Note

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

max.

mm

OUTLINE

VERSION

SOT27-1

1 2

min.

max.

1.73

1.13

0.068

0.044

IEC JEDEC EIAJ

050G04 MO-001AA

b

b

1

0.53

0.38

0.021

0.015

0.36

0.23

0.014

0.009

REFERENCES

cD

scale

(1) (1)

19.50

18.55

0.77

0.73

7

Ee M

6.48

6.20

0.26

0.24

E

(1)

Z

L

e

1

3.60

3.05

0.14

0.12

M

E

8.25

7.80

0.32

0.31

EUROPEAN

PROJECTION

10.0

8.3

0.39

0.33

H

0.2542.54 7.62

ISSUE DATE

w

0.010.10 0.30

92-11-17
95-03-11

max.

2.24.2 0.51 3.2

0.0870.17 0.020 0.13

1996 Feb 26 12

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

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”

Soldering by dipping or by wave

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

(order code 9398 652 90011).

TDA1523

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

Repairing soldered joints

Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300 °C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400 °C, contact may be up to 5 seconds.

stg max

). If the

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.

1996 Feb 26 13

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

TDA1523

NOTES

1996 Feb 26 14

Philips Semiconductors Preliminary specification

Stereo cassette head
preamplifier and equalizer

TDA1523

NOTES

1996 Feb 26 15

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517021/1100/01/pp16 Date of release: 1996 Feb 26
Document order number: 9397 750 00694