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INTEGRATED CIRCUITS
DATA SHEET
TDA7088T FM receiver circuit for battery supply
Product specification Supersedes data of January 1991 File under Integrated Circuits, IC01 1996 May 14
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
FEATURES * Equipped with all stages of a mono receiver from antenna to audio output * Mute circuit * Search tuning with a single varicap diode * Mechanical tuning with integrating AFC * AM application supported * Power supply polarity protection * Power supply voltage down to 1.8 V. APPLICATIONS * Mechanical tuning; this is possible with or without integrating AFC circuit * Electrical tuning; this is realized by one directional (band-up) search tuning facility, including RESET to the lower-band limit. QUICK REFERENCE DATA SYMBOL VP IP fiRF Vi(rms) PARAMETER supply voltage supply current radio input frequency RF sensitivity input voltage (RMS value) signal handling Vo(rms) Tamb audio output signal (RMS value) operating ambient temperature VoAF = -3 dB; VoAF = 0 dB at Vi = 1 mV; mute off f = 75 kHz; THD < 10% RL = 22 k CONDITIONS MIN. 1.8 4.2 0.5 - 100 60 -10 3 5.2 - 3 200 85 - TYP. GENERAL DESCRIPTION
TDA7088T
The TDA7088T is a bipolar integrated circuit for use in mono portable and pocket radios. It is used when a minimum of peripheral components (of small dimensions and low costs) is important. The circuit contains a frequency-locked-loop (FLL) system with an Intermediate Frequency (IF) of about 70 kHz. Selectivity is achieved by active RC-filters. De-tuning related to the IF and too weak input signals is suppressed by the mute circuit.
MAX. 5 6.6 110 6 - 120 +70 V
UNIT mA MHz V mV mV C
ORDERING INFORMATION TYPE NUMBER TDA7088T PACKAGE NAME SO16 DESCRIPTION plastic small outline package; 16 leads; body width 3.9 mm VERSION SOT109-1
1996 May 14
2
1996 May 14
VP 3.3 nF 330 pF run 15 IF LIMITER 5.4 k 3 0.1 F 22 nF 470 pF 180 pF 3.9 nF
handbook, full pagewidth
Philips Semiconductors
6 11 2.2 k +1 5 k MIXER VP ALLPASS FILTER 2.2 k 6 k
7
8
9
10
13
82 pF 70 nH 12 V1
10 k
68 pF
TDA7088T
5
BLOCK DIAGRAM AND APPLICATION CIRCUIT
220 pF
DEMODULATOR 6 k LOOP FILTER
FM receiver circuit for battery supply
BB910 78 nH V2 4 -1 14 V2 VCO
L1
3
680 pF
VP
AF V2
10 nF
3V
5.6 k
x
&
+ 16 SEARCH TUNING R S 1
+
AF V3 MUTE
0.1 F
reset
0.1 F
2
MEH089
VoAF 1.8 nF 22 k
V1, V2 and V3 are internal voltages.
Product specification
TDA7088T
Fig.1 Block diagram and application circuit for search tuning.
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
PINNING SYMBOL MUTE VoAF LOOP VP OSC IFFB CLP1 VoIF ViIF CLP2 ViRF ViRF CLIM GND CAP TUNE PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DESCRIPTION mute output audio frequency output signal AF loop filter +3 V supply voltage oscillator resonant circuit IF feedback low-pass capacitor of 1 dB amplifier IF output to external coupling capacitor (high-pass) IF input to limiter amplifier low-pass capacitor of IF limiter amplifier radio frequency input radio frequency input limiter offset voltage capacitor ground (0 V) all-pass filter capacitor/input for search tuning electrical tuning/AFC output
handbook, halfpage
TDA7088T
MUTE VoAF LOOP VP OSC IFFB CLP1 VoIF
1 2 3 4
16 TUNE 15 CAP 14 GND 13 CLIM 12 ViRF 11 ViRF 10 CLP2 9
MGE664
TDA7088T
5 6 7 8
ViIF
Fig.2 Pin configuration.
LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL VP Tstg Tamb Ves Note 1. There is no special ESD protection circuit built-in; ESD data on request. supply voltage storage temperature operating ambient temperature electrostatic handling; note 1 PARAMETER 0 -55 -10 - MIN. 5 +150 +70 - MAX. V C C - UNIT
1996 May 14
4
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
DC CHARACTERISTICS VP = 3 V; Tamb = 25 C; unless otherwise specified. SYMBOL VP IP V1 V3 V6, 7 V8 V9, 10, 13 V11, 12 V15 I2 I5 PARAMETER supply voltage (pin 4) supply current (pin 4) DC voltage on pin 1 DC voltage on pin 3 DC voltage on pins 6 and 7 DC voltage on pin 8 DC voltage on pins 9, 10 and 13 DC voltage on pins 11 and 12 DC voltage on pin 15 AF output current on pin 2 oscillator current on pin 5 1.8 4.2 2.50 2.64 2.38 1.60 2.42 0.91 2.06 45 275 MIN. 3 5.2 2.55 2.69 2.44 1.67 2.47 0.94 2.12 60 375 TYP. 5 6.6 2.60 2.74 2.50 1.74 2.52 0.98 2.18 80 500
TDA7088T
MAX. V mA V V V V V V V A A
UNIT
AC CHARACTERISTICS VP = 3 V; Tamb = 25 C; fiRF = 96 MHz modulated with fmod = 1 kHz and 22.5 kHz deviation; Vi = 400 V (measured as EMF; RS = 75 ) and measurements taken in Fig.4; unless otherwise specified. SYMBOL Vi(rms) PARAMETER RF sensitivity input voltage (RMS value) CONDITIONS VoAF = -3 dB; VoAF = 0 dB at Vi = 1 mV; see Fig.3 mute off mute on S+N ------------- = 26 dB N signal handling S+N ------------N THD AM RR1000 Vo(rms) signal plus noise-to-noise ratio total harmonic distortion AM suppression ripple rejection f = 75 kHz; THD < 10% see Fig.3 f = 22.5 kHz f = 75 kHz FM: 1 kHz; 75 kHz; AM: 1 kHz; m = 0.8 - 3 - 100 52 - - 47 3 6 5 200 56 1 2.4 52 10 85 6 12 10 - - 1.4 3.3 - - 120 V V V mV dB % % dB dB mV MIN. TYP. MAX. UNIT
100 mV RMS ripple on VP; 7 f = 1 kHz 60 - 95 1.25 voltage at pin 3 4.75
audio output signal (RMS value) RL = 22 k
Search tuning (with BB910 and C16 = 0.1 F) see Fig.1 V16 V/t fosc/t IAFC/V3 minimum output voltage on pin 16 tuning steepness oscillator steepness AFC steepness limiting point voltage at pin 16 VP - 1.85 - 210 2.83 9.5 420 5.6 19 V mV/s MHz/s S
1996 May 14
5
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
TDA7088T
handbook, full pagewidth
25
MEH092
VoAF (dB) 0
(2) (2)
S+N
-20
(1) (1)
-40 noise -60
-80 10-6
(1) Mute on. (2) Mute off.
10-5
10-4
10-3
EMF (V)
10-2
Fig.3 Input sensitivity.
1996 May 14
6
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
TEST AND APPLICATION INFORMATION
TDA7088T
handbook, full pagewidth
3.9 nF 9 330 pF 10 RS 82 pF 11 68 pF 70 nH 12 0.1 F 13 5 1.2 k 18 pF 6 27 pF 78 nH 4 10 nF 22 nF 14 470 pF 15 2 22 k VP = +3 V VP 3 1.8 nF VoAF C1 7 8 3.3 nF 180 pF
ViRF 220 pF
75 10 k EMF (fRF)
TDA7088T
16
1
0.1 F mute disable
MEH090
C1 = Toko 2A-15BT-R01.
Fig.4 Test circuit and application for mechanical tuning.
1996 May 14
7
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
TDA7088T
handbook, full pagewidth
3.9 nF 9 330 pF 10 82 pF 11 10 k 220 pF 68 pF 70 nH 12 0.1 F 13 5 18 pF 1.2 k 6 27 pF D1 78 nH 4 0.1 F 22 nF 14 470 pF 15 2 22 k VP = +3 V VP 3 1.8 nF VoAF 10 nF C1 C2 BA483 7 8 3.3 nF 180 pF
ViRF
TDA7088T
16
1
0.1 F AFC
MEH091
C1 = Toko 2A-15BT-R01.
Fig.5 Application circuit with AFC for mechanical tuning.
1996 May 14
8
1996 May 14
handbook, full pagewidth
Philips Semiconductors
oscillator resonant circuit FM AM 12 pF +3 V 22 nF 4.7 nF 4.7 nF 180 pF 8 7 6 5 4 3 2 1 22 F battery switch on 47 nF off FM AM VP 33 pF
+3 V
FM receiver circuit for battery supply
3.9 nF
TDA7088T
AF transformer 9 10 RF 33 pF +3 V 0.1 F 10 k AF 1 F AF 1 F 27 k volume 0.1 F (FM antenna) 10 nF 11 12 13 14 15 16 earphone 470 pF
9
BAW62 2.7 k 330 pF CC7642 (1) AM-IF 10 nF 100 k AF amplifier 22 k AM antenna 4.7 nF
5.1 12
MEH157
L H
(1) CC7642: AM-IF amplifier/demodulator type number WU-xi 742 Fty.
Product specification
TDA7088T
Fig.6 AM application circuit.
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
PACKAGE OUTLINE SO16: plastic small outline package; 16 leads; body width 3.9 mm
TDA7088T
SOT109-1
D
E
A X
c y HE vMA
Z
16 9
Q A2 pin 1 index Lp
1 8
A1
(A 3)
A
L wM detail X
e
bp
0
2.5 scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 1.75 A1 0.25 0.10 A2 1.45 1.25 A3 0.25 0.01 bp 0.49 0.36 c 0.25 0.19 D (1) 10.0 9.8 E (1) 4.0 3.8 0.16 0.15 e 1.27 0.050 HE 6.2 5.8 0.24 0.23 L 1.05 0.041 Lp 1.0 0.4 0.039 0.016 Q 0.7 0.6 0.028 0.020 v 0.25 0.01 w 0.25 0.01 y 0.1 Z (1) 0.7 0.3
0.0098 0.057 0.069 0.0039 0.049
0.019 0.0098 0.39 0.014 0.0075 0.38
0.028 0.004 0.012
8 0o
o
Note 1. Plastic or metal protrusions of 0.15 mm maximum per side are not included. OUTLINE VERSION SOT109-1 REFERENCES IEC 076E07S JEDEC MS-012AC EIAJ EUROPEAN PROJECTION
ISSUE DATE 91-08-13 95-01-23
1996 May 14
10
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
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). Reflow soldering Reflow soldering techniques are suitable for all SO packages. Reflow soldering requires solder paste (a suspension of fine solder particles, flux and binding agent) to be applied to the printed-circuit board by screen printing, stencilling or pressure-syringe dispensing before package placement. Several techniques exist for reflowing; for example, thermal conduction by heated belt. Dwell times vary between 50 and 300 seconds depending on heating 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 minutes at 45 C. Wave soldering Wave soldering techniques can be used for all SO packages if the following conditions are observed: * A double-wave (a turbulent wave with high upward pressure followed by a smooth laminar wave) soldering technique should be used. * The longitudinal axis of the package footprint must be parallel to the solder flow. * The package footprint must incorporate solder thieves at the downstream end.
TDA7088T
During placement and before soldering, the package must be fixed with a droplet of adhesive. The adhesive can be applied by screen printing, pin transfer or syringe dispensing. The package can be soldered after the adhesive is cured. Maximum permissible solder temperature is 260 C, and maximum duration of package immersion in solder is 10 seconds, if cooled to less than 150 C within 6 seconds. Typical dwell time is 4 seconds at 250 C. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. Repairing soldered joints Fix the component by first soldering two diagonallyopposite end leads. Use only a low voltage soldering iron (less than 24 V) applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 C. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 C.
1996 May 14
11
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
TDA7088T
This data sheet contains target or goal specifications for product development. This data sheet contains preliminary data; supplementary data may be published later. This data sheet contains final product specifications.
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 May 14
12
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
NOTES
TDA7088T
1996 May 14
13
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
NOTES
TDA7088T
1996 May 14
14
Philips Semiconductors
Product specification
FM receiver circuit for battery supply
NOTES
TDA7088T
1996 May 14
15
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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.
Printed in The Netherlands
517021/1200/02/pp16 Document order number: Date of release: 1996 May 14 9397 750 00843

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