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INTEGRATED CIRCUITS
DATA SHEET
TEA5570 RF/IF circuit for AM/FM radio
Product specification File under Integrated Circuits, IC01 September 1987
Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
GENERAL DESCRIPTION
TEA5570
The TEA5570 is a monolithic integrated radio circuit for use in portable receivers and clock radios. The IC is also applicable to mains-fed AM and AM/FM receivers and car radio-receivers. Apart from the AM/FM switch function the IC incorporates for AM a double balanced mixer, 'one-pin' oscillator, i.f. amplifier with a.g.c. and detector, and a level detector for tuning indication. The FM circuitry comprises i.f. stages with a symmetrical limiter for a ratio detector. A level detector for mono/stereo switch information and/or indication complete the FM part. Features * Simple d.c. switching for AM to FM by only one d.c. contact to ground (no switch contacts in the i.f. channel, a.f. or level detector outputs) * AM and FM gain control * Low current consumption (Itot = 6 mA) * Low voltage operation (VP = 2,7 to 9 V) * Ability to handle large AM signals; good i.f. suppression * Applicable for inductive, capacitive and diode tuning * Double smoothing of a.g.c. line * Short-wave range up to 30 MHz * Lumped or distributed i.f. selectivity with coil and/or ceramic filters * AM and a.g.c. output voltage control * Distribution of PCB wiring provides good frequency stability * Economic design for 'AM only' receivers. QUICK REFERENCE DATA (at Tamb = 25 C) Supply voltage Supply current AM performance (pin 2) for m = 0,3 Sensitivity at Vo = 10 mV at S/N = 26 dB A.F. output voltage at Vi = 1 mV Total harmonic distortion at Vi = 1 mV FM performance (pin 1) for f = 22,5 kHz limiting sensitivity, -3 dB Signal-to-noise ratio for Vi = 1 mV A.F. output voltage at Vi = 1 mV Total harmonic distortion at Vi = 1 mV AM suppression at Vi = 10 mV PACKAGE OUTLINE 16-lead DIL; plastic (SOT38); SOT38-1; 1996 July 25. Vi S/N Vo THD AMS typ. typ. typ. typ. typ. 110 V 65 dB 100 mV 0,3 % 50 dB Vi Vi Vo THD typ. typ. typ. typ. 1,7 V 16 V 100 mV 0,5 % VP = V7-16 I7 typ. typ. 5,4 V 6,2 mA
September 1987
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RF/IF circuit for AM/FM radio TEA5570
Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 134) Supply voltage (pin 7) Voltage at pins 4, 5, 9 and 10 to pin 16 (ground) Voltage range at pin 8 Current into pin 5 Total power dissipation Storage temperature range Operating ambient temperature range VP = V7-16 Vn-16 V8-16 I5 Ptot Tstg Tamb max. see Fig.2 -55 to -30 to max. max.
TEA5570
12 V 12 V VP 0,5 V 3 mA + 150 C + 85 C
Fig.2 Power derating curve.
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
D.C. CHARACTERISTICS VP = 6 V; Tamb = 25 C; measured in Fig.10; unless otherwise specified PARAMETER Supply (pin 7) Supply voltage (note 1) Voltages at pin 1 (FM) at pin 1; -I1 = 50 A (FM) at pins 2 and 3 (AM) at pin 6 at pin 11 at pin 13 at pin 14 Currents Supply current Current supplied from pin 1 (FM) Current supplied from pin 12 Current supplied from pin 15 Current into pin 4 (AM) Current into pin 5 (FM) (note 4) Current into pin 8 (AM) Current into pins 9, 10 (FM) Current into pin 14 Power consumption I7 -I1 -I12 -I15 I4 I5 I8 I9,10 I14 P 4,2 - - - - - - - - - 6,2 - - 30 0,6 0,35 0,3 0,65 0,4 40 8,2 50 20 - - - - - - - V1-16 V1-16 V2,3-16 V6-16 V11-16 V13-16 V14-16 - - - - - - - 1,42 1,28 1,42 0,7 1,4 0,7 4,3 - - - - - - - VP = V7-16 2,4 5,4 9,0 SYMBOL MIN. TYP.
TEA5570
MAX. V
UNIT
V V V V V V V
mA A A A mA mA mA mA mA mW
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
A.C. CHARACTERISTICS
TEA5570
AM performance VP = 6 V; Tamb = 25 C; r.f. condition: fi = 1 MHz, m = 0,3, fm = 1 kHz; transfer impedance of the i.f. filter |Ztr| = v6/I4 = 2,7 k; measured in Fig.10; unless otherwise specified PARAMETER R.F. sensitivity (pin 2) at Vo = 30 mV at S + N/N = 6 dB at S + N/N = 26 dB at S + N/N = 50 dB Signal handling (THD 10% at m = 0,8) A.F. output voltage at Vi = 1 mV Total harmonic distortion at Vi = 100 V to 100 mV (m = 0,3) at Vi = 2 mV (m = 0,8) at Vi = 200 mV (m = 0,8) I.F. suppression at Vo = 30 mV (note 2) Oscillator voltage (pin 8; note 3) at fosc = 1455 kHz Indicator current (pin 12) at Vi = 1 mV V8-16 I12 120 - 160 200 200 230 mV V THD THD THD - - - 26 0,5 1,0 4,0 35 - 2,5 10 - % % % dB Vi Vi Vi Vi Vi Vo 3,5 - - - 200 80 5,0 1,3 16 1 - 100 20 - - 125 7,0 V V V mV mV mV SYMBOL MIN. TYP. MAX. UNIT
FM performance VP = 6 V; Tamb = 25 C; i.f. condition: fi = 10,7 MHz, f = 22,5 kHz, fm = 1 kHz; transfer impedance of the i.f. filter |Ztr| = v6/i5 = 275 ; measured in Fig.10; unless otherwise specified PARAMETER I.F. part I.F. sensitivity (adjustable; note 4) Input voltage at -3 dB before limiting at S + N/N = 26 dB at S + N/N = 65 dB A.F. output voltage at Vi = 1 mV Total harmonic distortion at Vi = 1 mV AM suppression (note 5) Vi Vi Vi Vo THD AMS 90 - - 80 - - 110 6 1 100 0,3 50 130 - - 125 - - V V mV mV % dB SYMBOL MIN. TYP. MAX. UNIT
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
TEA5570
PARAMETER Indicator/level detector (pin 12) Indicator current D.C. output voltage at Vi = 300 V at Vi = 2 mV AM to FM switch Switching current at V3-16 < 1 V Notes to the characteristics 1. Oscillator operates at V7-16 > 2,25 V.
SYMBOL I12 V12-16 V12-16 -I3 - - - -
MIN.
TYP. 250 0,25 1,0 -
MAX. 325 - -
UNIT A V V A
400
V i1 2. I.F. suppression is defined as the ratio = 20 log ------- where: Vi1 is the input voltage at f = 455 kHz and Vi2 is the V i2 input voltage at f = 1 MHz. 3. Oscillator voltage at pin 8 can be preset by Rosc (see Fig.10).
V 3 - 16 4. Maximum current into pin 5 can be adjusted by R1 (see Fig.10); I5 = --------------- - I3 when V3-16 = 800 mv; I3 = 400 A. R1 5. AM suppression is measured with fm = 1 kHz, m = 0,3 for AM; fm = 400 Hz, f = 22,5 kHz for FM. Facility adaptation Facility adaptation is achieved as follows (see Fig.10): FACILITY FM sensitivity COMPONENT V 3 - 16 R1 fixes the current at pin 5 (I5 = --------------- - 400 A) R1 (gain adjustable 10 dB; see note 4) AM sensitivity AM oscillator biasing AM output voltage AM a.g.c. setting R11 and coil tapping Rosc R7, R11 R7
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
Typical graphs
TEA5570
reference level 0 dB = 100 mV
(1) A.G.C. range (figure of merit, FOM).
Fig.3
Signal, noise and distortion as a function of input voltage (Vi). Measured at fi = 1 MHz in test circuit Fig.10.
sensitivity (Vi) at Vo = 30 mV; m = 0,3. - - - output voltage (Vo) at Vi = 2 mV; m = 0,3.
Fig.4
Sensitivity (Vi), output voltage (Vo) as a function of temperature behaviour (Tamb). Measured at fi = 1 MHz in test circuit Fig.10.
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
TEA5570
sensitivity (Vi) at Vo = 30 V; m = 0,3: 6,0 V application. - - - - - sensitivity (Vi) at Vo = 30 mV; m = 0,3: 4,5 V application. - - - - - output voltage (Vo) at Vi = 0,2 mV; m = 0,3.
Fig.5
Sensitivity (Vi) and output voltage (Vo) as a function of supply voltage (VP). Measured at fi = 1 MHz in test circuit Fig.10, for application VP = 6 V. Also shown is the sensitivity for VP = 4,5 V application (Fig.16).
Fig.6
Signal, noise and distortion as a function of input voltage (Vi). Measured at fi = 10,7 MHz in test circuit Fig.10.
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
TEA5570
sensitivity at -3 dB limiting. - - - output voltage (Vo) at Vi = 1 mV; f = 22 kHz.
Fig.7
Sensitivity (Vi), output voltage (Vo) as a function of temperature behaviour (Tamb). Measured at fi = 10,7 MHz in test circuit Fig.10.
sensitivity at -3 dB limiting: VP = 6,0 V application. - - - - - - sensitivity at -3 dB limiting: VP = 4,5 V application. - - - - output voltage (Vo) at Vi = 1 mV; f = 22,5 kHz.
Fig.8
Sensitivity (Vi) and output voltage (Vo) as a function of supply voltage (VP). Measured at fi = 10,7 MHz in test circuit Fig.10.
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
TEA5570
Fig.9
Indicator output current (I12) and d.c. output voltage (V12-16): AM fi = 1 MHz; FM fi = 10,7 MHz as a function of input voltage (Vi). Measured in Fig.10; VP = 6 V; R12-16 = 5 k.
September 1987
11
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Coil data The transfer impedance of the i.f. filter is: AM: |Ztr| = v6/i4 = 2,7 k (SFZ 455A). FM: |Ztr| = v6/i5 = 275 (SFE 10,7 MS). See also Figs 11, 12, 13 and 14.
Philips Semiconductors
RF/IF circuit for AM/FM radio TEA5570
Product specification
Fig.10 Test circuit.
Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
COIL DATA AM i.f. coils (Fig.10)
TEA5570
N1 N2 N3 C16
= 73 = 73 =9 = 180 pF (internal)
Wire = 0,07 mm dia.
Fig.11 I.F. bandpass filter (L1). TOKO sample no. 7 MC-7 P.
N1 N2
= 90 =7
Wire = 0,07 mm dia.
Fig.12 Oscillator coil (L2). TOKO sample no. 7 BR-7 P.
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
FM i.f. coils (Fig.10)
TEA5570
N1 N2 N3 C19
=5 =5 =4 = 82 pF (internal)
Wire = 0,1 mm dia.
Fig.13 Primary ratio detector coil (L3). TOKO sample no. 119 AN-7 P.
N1 N2 N3 C20
=2 =6 =6 = 68 pF (internal)
Wire = 0,1 mm dia.
Fig.14 Secondary ratio detector coil (L4). TOKO sample no. 119 AN-7 P.
September 1987
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RF/IF circuit for AM/FM radio
Figs 15 and 17 show the circuit diagrams for the application of 6 V AM MW/LW and 4,5 V AM/FM channels respectively, using the TEA5570. Fig.16 shows the circuitry of the TEA5570.
TEA5570
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RF/IF circuit for AM/FM radio TEA5570
This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ... September 1987 17 Coil data L2 N1 = 3 N2 = 8 N3 = 1 C = 82 pF L3 N1 = 33 N2 = 113 N3 = 9 C = 180 pF L4 N1 = 90 N2 = 6 L5 N1 = 33 N2 = 113 N3 = 9 L6 N1 = 50 N2 = 50 N3 = 4,5 N4 = 6,5 C = 82 pF Product specification Fig.17 Typical application circuit for 4,5 V AM/FM reception using the TEA5570 with coils and single-tuned ratio detector (with silicon diodes). DETAILED APPLICATION INFORMATION WILL BE SUPPLIED ON REQUEST. Philips Semiconductors
RF/IF circuit for AM/FM radio TEA5570
Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
PACKAGE OUTLINE DIP16: plastic dual in-line package; 16 leads (300 mil); long body
TEA5570
SOT38-1
D seating plane
ME
A2
A
L
A1
c Z e b1 b 16 9 MH wM (e 1)
pin 1 index E
1
8
0
5 scale
10 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT mm inches A max. 4.7 0.19 A1 min. 0.51 0.020 A2 max. 3.7 0.15 b 1.40 1.14 0.055 0.045 b1 0.53 0.38 0.021 0.015 c 0.32 0.23 0.013 0.009 D (1) 21.8 21.4 0.86 0.84 E (1) 6.48 6.20 0.26 0.24 e 2.54 0.10 e1 7.62 0.30 L 3.9 3.4 0.15 0.13 ME 8.25 7.80 0.32 0.31 MH 9.5 8.3 0.37 0.33 w 0.254 0.01 Z (1) max. 2.2 0.087
Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION SOT38-1 REFERENCES IEC 050G09 JEDEC MO-001AE EIAJ EUROPEAN PROJECTION
ISSUE DATE 92-10-02 95-01-19
September 1987
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Philips Semiconductors
Product specification
RF/IF circuit for AM/FM radio
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. DEFINITIONS Data sheet status Objective specification Preliminary specification Product specification Limiting values
TEA5570
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 (Tstg 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.
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.
September 1987
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