Datasheet TDA1574-V3 Datasheet (Philips)

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Page 1

DATA SH EET

Product speciﬁcation File under Integrated Circuits, IC01

February 1985

INTEGRATED CIRCUITS

TDA1574

Integrated FM tuner for radio receivers

Page 2

February 1985 2

Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

GENERAL DESCRIPTION

The TDA1574 is a monolithic integrated FM tuner circuit designed for use in the r.f./i.f. section of car radios and home-receivers. The circuit comprises a mixer, oscillator and a linear i.f. amplifier for signal processing, plus the following additional features.

Features

• Keyed automatic gain control (a.g.c.)

• Regulated reference voltage

• Buffered oscillator output

• Electronic standby switch

• Internal buffered mixer driving.

QUICK REFERENCE DATA

PACKAGE OUTLINE

18-lead DIL; plastic (SOT102); SOT102-1; 1996 August 08.

Supply voltage range (pin 15) V

7 to 16 V

Mixer input bias voltage (pins 1 and 2) V

1, 2-4

typ. 1 V

noise figure NF typ. 9 dB

Oscillator output voltage (pin 6) V

6-4

typ. 2 V

output admittance at pin 6 for f = 108,7 MHz Y22 typ. 1,5 + j2 mS Oscillator output buffer D.C. output voltage (pin 9) V

9-4

typ. 6 V Total harmonic distortion THD typ. −15 dBC Linear i.f. ampliﬁer output voltage (pin 10) V

10-4

typ. 4,5 V

noise figure at R

= 300 Ω NF typ. 6,5 dB

Keyed a.g.c. output voltage range (pin 18) V

18-4

+ 0,5 to VP− 0,3 V

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Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

Fig.1 Block diagram and test circuit.

Coil data

L1: TOKO MC-108, 514HNE-150014S14; L = 0,078 µH

L2: TOKO MC-111, E516HNS-200057; L = 0,08 µH

L3: TOKO coil set 7P, N1 = 5,5 +5,5 turns, N2 = 4 turns

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Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

FUNCTIONAL DESCRIPTION Mixer

The mixer circuit is a double balanced multiplier with a preamplifier (common base input) to obtain a large signal handling range and a low oscillator radiation.

Oscillator

The oscillator circuit is an amplifier with a differential input. Voltage regulation is achieved by utilizing the symmetrical tanh-transfer-function to obtain low order 2nd harmonics.

Linear IF ampliﬁer

The IF amplifier is a one stage, differential input, wideband amplifier with an output buffer.

Keyed AGC

The AGC processor combines narrow- and wideband information via an RF level detector, a comparator and an ANDing stage. The level dependent, current sinking output has an active load, which sets the AGC threshold.

The AGC function can either be controlled by a combination of wideband and narrowband information (keyed AGC), or by a wideband information only, or by narrowband information only. If only narrow-band AGC is wanted pin 3 should be connected to pin 5. If only wideband AGC is wanted pin 12 should be connected to pin 13.

RATINGS

Limiting values in accordance with the Absolute Maximum System (IEC 134)

THERMAL RESISTANCE

Note

All pins are short-circuit protected to ground.

Supply voltage (pin 15) V

= V

15-4

max. 18 V

Mixer output voltage (pins 16 and 17) V

16, 17-4

max. 35 V

Standby switch input voltage (pin 11) V

11-4

max. 23 V

Reference voltage (pin 5) V

5-4

max. 7 V

Field strength input voltage (pin 12) V

12-4

max. 7 V

Total power dissipation P

tot

max. 800 mW

Storage temperature range T

stg

−55 to + 150 °C

Operating ambient temperature range T

amb

−40 to + 85 °C

From junction to ambient (in free air) R

th j-amb

= 80 K/W

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Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

CHARACTERISTICS

= V

15-4

= 8,5 V; T

amb

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

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

Supply (pin 15) Supply voltage V

= V

15-4

7 − 16 V

Supply current (except mixer) I

= I

16 23 30 mA

Reference voltage (pin 5) V

5-4

3,9 4,1 4,4 V

Mixer

D.C. characteristics

Input bias voltage (pins 1 and 2) V

1,2-4

− 1 − V

Output voltage (pins 16 and 17) V

16,17-4

4 − 35 V

Output current (pin 16 + pin 17) I

+ I

− 4,0 − mA

A.C. characteristics (fi= 98 MHz)

Noise ﬁgure NF − 9 − dB Noise ﬁgure including transforming network NF − 11 − dB 3rd order intercept point EMF1

IP3

− 115 − dBµV

Conversion power gain

− 14 − dB

Input resistance (pins 1 and 2) R

1,2-4

− 14 −Ω

Output capacitance (pins 16 and 17) C

16,17

− 13 − pF

Oscillator

D.C. characteristics

Input voltage (pins 7 and 8) V

7,8-4

− 1,3 − V

Output voltage (pin 6) V

6-4

− 2 − V

A.C. characteristics

osc

= 108,7 MHz)

Residual FM (Bandwidth 300 Hz to 15 kHz); de-emphasis = 50 µs ∆f − 2,2 − Hz

Mout()

107MHz,()

EMF1 98 MHz()

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

---------- -

×log

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Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

Linear i.f. ampliﬁer

D.C. characteristics

Input bias voltage (pin 13) V

13-4

− 1,2 − V

Output voltage (pin 10) V

10-4

− 4,5 − V

A.C. characteristics

(fi = 10,7 MHz)

Input impedance

14-13

240 300 360 Ω

14-13

− 13 − pF

Output impedance

10-4

240 300 360 Ω

10-4

− 3 − pF

Voltage gain

VIF

27 30 − dB

amb

= −40 to + 85 °C ∆G

VIF

− 0 − dB

1 dB compression point (r.m.s. value)

at V

= 8,5 V V

10-4rms

− 750 − mV

at V

= 7,5 V V

10-4rms

− 550 − mV

Noise ﬁgure

at R

= 300 Ω NF − 6,5 − dB

Keyed a.g.c.

D.C. characteristics

Output voltage range (pin 18) V

18-4

0,5 − V

P-0,3

A.G.C. output current

at I

= φ or

12-4

= 450 mV; V

18-4

= VP/2 −I

25 50 100 µA

at V

3-4

= 2 V and

12-4

= 1 V; V

18-4

= V

15-4

2 − 5mA

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

10 4–

14 13–

------------------log

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Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

Narrowband threshold

at V

3-4

= 2 V; V

12-4

= 550 mV V

18-4

−−1V

at V

3-4

= 2 V; V

12-4

= 450 mV V

18-4

P-0,3

−−V

A.C. characteristics

(fi = 98 MHz)

Input impedance

3-4

− 4 − kΩ

3-4

− 3 − pF Wideband threshold (r.m.s. value) (see ﬁgures 2, 3, 4 and 5)

at V

12-4

= 0,7 V; V

18-4

= VP/2; I18 = 0 EMF2

rms

− 17 − mV

Oscillator output buffer (pin 9)

D.C. output voltage V

9-4

− 6,0 − V Oscillator output voltage (r.m.s. value)

at R

= ∞; CL = 2 pF V

9-4(rms)

− 110 − mV

at R

= 75 Ω V

9-4(rms)

30 50 − mV

D.C. output impedance R

9-15

− 2,5 − kΩ Signal purity Total harmonic distortion THD −−15 − dBC Spurious frequencies

at EMF1 = 0,2 V; R

= 50 Ω f

−−35 − dBC

Electronic standby switch (pin 11 )

Oscillator; linear i.f. ampliﬁer; a.g.c.

at T

amb

= −40 to + 85 °C

Input switching voltage

for threshold ON; V

18-4

= ≥ VP−3 V V

11-4

0 − 2,3 V

for threshold OFF; V

18-4

= ≤ 0,5 V V

11-4

3,3 − 23 V

Input current

at ON condition; V

11-4

= 0 V −I

−−150 µA

at OFF condition; V

11-4

= 23 V I

−−10 µA Input voltage

at I

= φ V

11-4

−−4,4 V

PARAMETER SYMBOL MIN. TYP. MAX. UNIT

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Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

Fig.2 Keyed a.g.c. output voltage V

18-4

as a

function of r.m.s. input voltage V

3-4.

Measured in test circuit Fig.1 at V

12-4

= 0,7 V; I18= φ.

Fig.3 Keyed a.g.c. output voltage V

18-4

as a function of input voltage V

12-4

. Measured in test circuit Fig.1 at V

3-4

= 2 V; I18= φ.

Fig.4 Keyed a.g.c. output current I18as a

function of r.m.s. input voltage V

3-4.

Measured in test circuit Fig.1 at V

12-4

= 0,7 V; V

18-4

= 8,5 V.

Fig.5 Keyed a.g.c. output current I18as a

function of input voltage V

12-4

. Measured in test circuit Fig.1 at V

3-4

= 2 V; V

18-4

= 8,5 V.

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February 1985 9

Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

APPLICATION INFORMATION

Coil data

L1 : TOKO MC-108,

514HNE-15023S15,

N1 = 5,5 turns, N2 = 1

turn

L2:

see Fig.1

L3:

(1) Field strength indication

of main i.f. amplifier.

Fig.6 TDA1574 application diagram.

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Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

PACKAGE OUTLINE

REFERENCES

OUTLINE VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC JEDEC EIAJ

SOT102-1

93-10-14 95-01-23

UNIT

max.

(1) (1)

(1)

cD E e M

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

min.

max.

1.40

1.14

0.53

0.38

0.32

0.23

21.8

21.4

6.48

6.20

3.9

3.4

0.2542.54 7.62

8.25

7.80

9.5

8.3

0.854.7 0.51 3.7

inches

0.055

0.044

0.021

0.015

0.013

0.009

1.40

1.14

0.055

0.044

0.86

0.84

0.26

0.24

0.15

0.13

0.010.10 0.30

0.32

0.31

0.37

0.33

0.0330.19 0.020 0.15

(e )

seating plane

w M

pin 1 index

0 5 10 mm

scale

Note

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

DIP18: plastic dual in-line package; 18 leads (300 mil)

SOT102-1

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Philips Semiconductors Product speciﬁcation

Integrated FM tuner for radio receivers TDA1574

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).

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.

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

stg max

). 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.

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.

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.