Philips TEA5594 AM/FM Radio IC Application Note

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Document text

Application Note 


Basic application board of 
the TEA5594 AM/FM radio IC 


J. Been 


Radio Section 
Customer Support Group, Consumer ICs, Nijmegen - The Netherlands 


Keywords 
one chip radio 
electronic tuning 
PCB layout 
alignment procedure 


Report No : NBA/AN9012 
Date : January 1991 
Pages ae 


© Philips Export B.V. 1990 
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. 
The information presented in this document does not form part of any quotation or contract, is believed to be accurate and 
reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. 
Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. 





PHILIPS 





PHILIPS 





Abstract: 


This report is a supplement to the earlier application note "TEA5594 in 
AM/FM Electronic Tuned Car-radios" (ERA/AN90002). 

It presents the basic application circuit diagram with a PCB proposal. 

A few changes are made in the scheme compared to the earlier note. The main 
ones are the values of the resistors at pin 1 (mute input) and an extra 3.3 
pF capacitor in the FM aerial input LC resonator. Also R13 and R3 have 
different values. To improve compliance to the CENELEC outband immunity 
requirements, Cl6 is increased to 100 nF and the FM RF amplifier biasing is 
minimised by use of a 1.8 kQ resister between pins 2/7 and 30. The 
performance is given on page 8. 

The PCB layout has been adapted to achieve a better performance. We stress 
here that this print is a prototype. A more representative version will be 
published in the near future. : 
Next, the report presents the main AM and FM curves measured on the basic 
application PCB. The output noise, audio output level, DC level indicator 
output and THD are plotted as a function of the input signal level. 

The report also gives an alignment procedure for the basic application 
circuit. The PCB we offer to the customer is aligned in accordance with this 
description. 

Finally a parts list is presented. 


Philips Components Application Note NBA/AN9012 


Table of Contents: 


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Basic application circuit diagram . 
Component side Application PCB 
Track side Application PCB 

AM performance at 1 MHz 

FM performance at 100 MHz 

FM CENELEC 'outband AM on FM' 
Alignment procedure 

Parts list 


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Philips Components Application Note NBA/AN9012 














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Philips Components Application Note NBA/ANI012 


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Alignment precedure TEA5594 basic application board. 


AM alignments: 

1) Connect: 
- a 8.5 V Supply Voltage 
- a variable Tuning Voltage (ranging from 0 - 8.5 Volt) 
- an RF signal generator via the AM dummy antenna to the antenna 

socket 

- a frequency counter to the buffered AM oscilator output (<10 pF) 
- an oscilloscope and Sennheiser level meter to the AF output. 
Check if the AM/FM switch is in the AM position. 

2) Make the Tuning Voltage 0.8 Volt. 

3) Adjust L4 for a 999 kHz reading. 

4) Make the Tuning Voltage 7.9 Volt. 

DB) Adjust CTl for a 2070 kHz reading. 

6) Repeat steps 2) to 5) till Fose is within 1 kHz. 


7) Connect the frequency counter to the buffered IF signal and connect 
count enable to +8.5V. 


8) Inject an RF signal of 648 kHz (= 20 wV, 30% AM, Fmod.= 1 kHz). 


2) Tune the receiver maximally to this signal (with the Tuning Voltage). 
The counter should give a 468 kHz reading. 


10) Adjust L3 for a maximum AF reading. 
i) Adjust L/7 for a maximum AF reading. 
12) Inject an RF signal of 1494 kHz. 


13) Tune the receiver maximally to this signal (with the Tuning Voltage). 
The counter should give a 468 kHz reading. 


14) Adjust CT2 for a maximum AF reading. 


TS) Repeat steps 8) to 14) till the AF maximum reading is within 1 dB. 
Note: It is only necessary to adjust L3 once. 


16) Inject an RF signal of 1 MHz, 80 pV, 30% AM, Fmod.= 1 kHz. 
17) Tune the receiver maximally to this signal (with the Tuning Voltage). 
The Tuning Voltage should be approx. 4.4 Volt. 


The counter should give a 468 kHz reading. 


18) Check the Signal to Noise ratio at 80 uV. 
This should be approx. 26 dB. 


Philips Components Application Note NBA/ANIO12 


= 10 - 


FM alignments: 


101) - change the AM dummy antenna by the FM dummy antenna 
- connect the frequency counter to the buffered FM oscilator (<l10pF) 
- select FM by means of the AM/FM switch 
- turn Pl clock wise (mute off). 

102) Make the Tuning Voltage 8.4 Volt. 

103) Adjust L5 for a 118.7 MHz reading. 


104) Connect the frequency counter to the buffered IF signal and connect 
count enable to +8.5V. 


105) Inject an RF signal of 100 MHz (= 20 pV, F = 22.5 kHz, Fmod.= 1 kHz). 


106) Tune the receiver maximally to this signal (with the Tuning Voltage). 
The Tuning Voltage should be approx. 4.4 Volt. 


107) Adjust Ll for a maximum AF reading. 

108) Adjust L6 for a maximum AF reading (CT3 min.). 

109) Adjust L2 for a maximum AF reading. 

110) Repead steps 106) to 109) with a RF generator signal of 5 pV. 


110) Check the Signal to Noise ratio at 6 uV. 
This should be approx. 26 dB. 


111) Make the RF amplitude 1 mV. 
112) Adjust the Sennheiser to O dB (approx. 90 mV). 
113) Make the RF amplitude 10 uzV. 


114) Adjust the Sennheiser to -3 dB with Pl. 


Philips Components Application Note NBA/AN9012 


aes ik eo 


Partslist application PCB TEA 5594 


Part Nr. Description 12NG Used in Part Nr. service doc. 
Li FM aerial 4822 156 10666 22DC550 5050 Modified ! 
L2 FM-IF 4622-156: 21167 22AG/40 5055 

S122. 118 20562 TOKO sample NR. 1L1L9BCS-A6515BQG 
iS AM-IF | TOKO sample NR. A/7MCS-11213N 
L4 AM-osc 3111 118 24083 TOKO sample NR. 7PSLN-1627X-S 
1 FM-osc S17 300 50151 TOKO sample NR. A294SNS-11211B 
L6 FM-RF 4822 156 11086 Z22DG952°. 3002 

TOKO sample NR. ES20HNS-4000023 

L7 AM aerial 4822 157 51505 22DC550 5059 
L8 Choke 8 mH 4822 157 51508 Z2DG590% - 5058 
L9 AM-RF 330 uH 4822 157 51509 22DC550 5057 
LLOQ Choke 5.6 uH 4822 157 51216 22DG550 5055 
L11 AM-RF 1 mH 4822 157 52047 22DC550 5056 
sige BC548C 4822 130 44196 22AC744 7844 
TZ BC548C 4822 130 44196 22AC744 7844 
cigs BF410D 4822 130 41697 2206550 6061 
T4 BF410A Jo22 150 44905 22DC550 6063 
is BC549C 5322 130 44246 22AC844 T427 
T6 BC558C 5322 130 60068 
i? BC548C 4822 130 44196 22AC744 7844 
VC1 BB204B 4822 130 34449 22DE550 6083 
VC2 BB204B 4822 130 34449 2206530 6084 
Vc3 BB204G 5322.130.-34825 22DC550 6085 
VC4 BB112 4622-130 32227 22DC550 6093 
Vc5 BBLL2 AS22130). 32227 220C5)0 6094 
D1 LN4148 4822 130-3062 1. 22AC750 6288 
D2 1N4148 4822 130 30621 22AC750 6289 
D3 BASL? 4822 130 30847 22DC550 6091 
D4 BA317 4822 130 30847 Z2DC550 6092 
K1 SFE10O.7MS3 4822 242 70665 22DC550 1056 
K2 SFE1LO.7MS3 4822 242 70665 22DC550 1057 
K3 CDA10.7MC1L not yet available (1lOOpcs in stock) 
K4 SFZ468HL3 not yet available (10Opces in stock) 
CTL TRIMMER 40pF 4822 125 50092 22DC550 2083 
CT2 TRIMMER 40pF 4822 125 50092 22DC550 2121 
CT3 TRIMMER lLOpF 4822 125 50199 22DC550 2057 
Al ANT . SOCKET 4822 267 30883 22DC681 0430 
PL 2K2 Potm. 4822 100 11212 22DG66 1. Sak 


Philips Components Application Note NBA/AN9012 


29 < 


Resistors (size 1206): 


RO = 1.8 kQ 
R1 = 5.6 kQ 
R2 = 3 kQ 
R3 = 0 Q 
R4 = 56 Q 
R5 = 22 kQ 
R6 = 56 kQ 
R/ = 10 kQ 
R8 = 47 kQ 
RY = 56 kQ 
R10 = 47 kQ 
Rid mt 56 kQ 
Ri2 = 47 kQ 
R13 = 100 Q 
R14 = 560 kQ 
R15 = 47 kQ. 
R16 = 5.6 kf 
Rig = 1 MQ 
R18 = 150 2 
Rig = 330 kQ 
R20 = 39 kQ 
R22 = 560 kf 
R22 = 56 Q 
R23 = 56 Q 
R24 = 2.2 kQ 
RZ) = 330 kQ 
R26 = 220 0 
R27 = 4,7 kQ 
R28 + 22 kQ 
R29 = 0 2 


Philips Components Application Note NBA/AN9012 


= 13.< 


Capacitors (up to 100 nF size 1206; * = size 0805): 


Gi. = 4,7 pF 
C2 = 68 pF 
G3 = 10 RE 
C4 ae 22 nF 
C5 = 100 uF 
C6 = 22 DF 
Gi = 22° nF 
C8 = 22 nF 
C9 ~ 33: iF 
C10 = 180 pF 
Cll = 8.2 pF 
C12 = 10 pF 
C13 = 3.3 pF 
C14 = 1 nF 
C15 = 10 nF 
C16 = 100 nF 
C1l7 = 100 nF 
C18 = 1 nF 
C19 = pie os) 
C20 = 100 nF 
G2 = 33. AE 
G2Z = 100 nF 
C23 = 10 nF 
C24 = 10 nF 
C25 = 10 nF 
C26 = 3.3 pF* 
C27 = 1 mF 
C28 = l nF* 
C29 = 390 pF 
C30 Se 2 ae 
C31. a 10 nF 
G3zZ = 39 pF 
G33 = 10 nF 
C34 = 2.2 pF 
G35 = 2./7 nF 
C36 = 33 nF 
C37 = 22 nF 
C38 = 100 pF 
C39 me 22 DE 
C40 sx 10 nF 
C41. = 47 pF 
G42 a 10 nF 
C43 = LO nF 
C44 = 4,7 pF 
C45 = 22 TE 


Philips Components Application Note NBA/AN9012 























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

Tel. (01) 4894 339/4894 911. 

Hong Kong: PHILIPS HONG KONG LTD., Components Div, 
15/F Philips Ind. Bidg., 24-28 Kung Yip St., KWAI CHUNG, 
Tel. (0)-42 45 121. 

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Components Dept., Band Box Building, 

254-D Dr. Annie Besant Rd., BOMBAY — 400025, 
Teal. (022) 49 30311/4930 590. 

Indonesia: P.T. PHILIPS-RALIN ELECTRONICS, 
Components Div., Setiabudi |! Building, 6th FI., 

Jalan H.R. Rasuna Said (P.O. Box 223/KBY) Kuningan, 
JAKARTA 12910, Tel. (021) 51 7995. 

lreland: PHILIPS ELECTRONICS (IRELAND) LTD., 
Components Division, Newstead, Clonskeagh, DUBLIN 14, 
Tel. (01)693355. 

Italy: PHILIPS S.p.A., Philips Components, 

Piazza IV Novembre 3, |-20124 MILANO, Tel. (02)6752.1. 

Japan: PHILIPS JAPAN LTD., Components Division, 


Philios Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108, 


Tel. (03) 740-5028. 
Korea (Republic of): PHILIPS ELECTRONICS (KOREA) LTD. 


Components Division, Philips House, 260-199 Itaewon-dong, 


Yongsan-ku, SEOUL, Tel. (02) 794-5011. 
Malaysia: PHILIPS MALAYSIA SDN BHD, Components Div., 


New Zealand: PHILIPS NEW ZEALAND LTD., 
Components Division, 110 Mt. Eden Road, C.P.O. Box 1041, 
AUCKLAND, Tel. (09) 605-914. 

Norway: NORSK AVS PHILIPS, Philips Components, Box 1, 
Manglerud 0612, OSLO, Tel. (02)6802 00. 

Pakistan: PHILIPS ELECTRICAL CO. OF PAKISTAN LTD., 


Philios Markaz, M.A. Jinnah Rd., KARACHI-3, Tel. (021) 725772. 
Peru: CADESA, Carretera Central 6.500, LIMA 3, Apartado 5612, 


Tel. 51-14-35 0059. 

Philippines: PHILIPS INDUSTRIAL DEV. INC., 
2246 Pasong Tamo, P.O. Box 911, Makati Comm. Centre, 
MAKATI-RIZAL 3116, Tel. (02)8689 51 to 59. 

Portugal: PHILIPS PORTUGUESA S.A.R.L., Av. Eng. Duarte 
Pacheco 6, 1009 LISBOA Codex, Tel. (019) 6831 21. 

Singapore: PHILIPS SINGAPORE, PTE LTD., Components Div., 
Lorong 1, Toa Payoh, SINGAPORE 1231, Tel. 3502000. 

South Africa: S.A. PHILIPS PTY LTD., Components Division, 
JOHANNESBURG 2000, P.O. Box 7430. 

Spain: PHILIPS COMPONENTS, Balmes 22, 
08007 BARCELONA, Tel. (03) 301 63 12. 

Sweden: PHILIPS COMPONENTS, A.B., Tegeiuddsvagen 1, 
S-11584 STOCKHOLM, Tel. (0)8-78 21 000. 

Switzerland: PHILIPS A.G., Components Dept., 


Allmendstrasse 140-142, CH-8027 ZURICH, Tel. (01) 48822 11. 


Taiwan: PHILIPS TAIWAN LTD., 581 Min Sheng East Road, 
P.O. Box 22978, TAIPE! 10446, Taiwan, Te!.886-2-5005899. 

Thailand: PHILIPS ELECTRICAL CO. OF THAILAND LTD., 
283 Silom Road, P.O. Box 961, BANGKOK, 

Tel. (02) 233-6330-9. 

Turkey: TURK PHILIPS TICARETA.S., Philips Components, 
Talatoasa Cad. No. 5, 80640 LEVENT/ISTANBUL, 

Tel. (01) 179 27 70. 

United Kingdom: PHILIPS COMPONENTS LTD., 

Mullard House, Torrington Place, LONDON WC1E 7HD, 
Tel. (01)580 6633. 

United States: (Colour picture tubes — Monochrome & Colour 
Display Tubes) PHILIPS DISPLAY COMPONENTS COMPANY, 
1600 Huron Parkway, P.O. Box 963, ANN ARBOR, 
Michigan 48106, Tel.313/996-9400. 

(IC Products) SIGNETICS CORPORATION, 811 East Arques 
Avenue, SUNNYVALE, CA 94088-3409, Tel. (408) 991-2000. 
(Passive Components, Discrete Semiconductors, Materials 
and Professional Components) PHILIPS COMPONENTS, 
Discrete Products Division, 2001 West Blue Heron Blva., 
PO. Box 10330, RIVIERA BEACH, Florida 33404, 

Tel. (407) 881-3200. 

Uruguay: PHILIPS COMPONENTS, Coronel Mora 433, 
MONTEVIDEO, Tel. (02) 70-4044. 

Venezuela: MAGNETICAS.A., Calle 6, Ed. Las Tres Jotas, 
CARACAS 1074A, App. Post. 78117, Tel. (02)241 7509. 

Zimbabwe: PHILIPS ELECTRICAL (PVT) LTD., 

62 Mutare Road, HARARE, P.O. Box 994, Tel.47211. 


For all other countries apply to: Philios Components Division, 
Strategic Accounts and International Sales, PO. Box 218, 

5600 MD EINDHOVEN, The Netherlands, Telex 35000 phtcni, 
Fax. 23753 


AX80 © Philips Export B.V. 1990 


All nghts are reserved. Reproduction in whole or in part ts 
prohibited without the prior written consent of the copyright 


OWNED, 














3 Jalan S$15/2A SUBANG, 47500 PETALING JAYA, 
Tel. (03) 7345 511. 

Mexico: PHILIPS COMPONENTS, Paseo Triunfo de la Republica, 
No 215 Local 5, Cd Juarez CH] HUA HUA 32340 MEXICO 
Tel. (16) 18-67-01/02. 

Netherlands: PHILIPS NEDERLAND B.V., Marktgroep 
Philips Components, Postbus 90050, 5600 PB EINDHOVEN, 
Tel. (040) 7837 49. 


The information presented in this document does not form part | 
of any quotation or contract, is believed to be accurate and | 
reliable and may be changed without notice. No liability will be | 
accepted by the publisher for any consequence of its use. 
Publication thereof does not convey nor imply any license under 
patent- or other industrial or intellectual property rights. 














inted in The Netherland 








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