INTEGRATED CIRCUITS DATA SHEET / radio receiver circuit File under Integrated Circuits, IC0 March 99
/ radio receiver circuit GENERAL DESCRIPTION The is a 32-pin integrated radio circuit designed for use in all Electronic Tuned Radio (ETR) sets especially those sets which have to fulfil the immunity requirements of CENELEC. The circuit incorporates: A double balanced mixer A one-pin oscillator with amplitude control operating in the LW/MW frequency range An IF amplifier and detector An AGC circuit which controls the IF amplifier and mixer The circuit incorporates: A front-end (fulfilling the out of band CENELEC requirements) Two IF amplifiers (for distributed selectivity) A quadrature demodulator with a ceramic filter The also contains: Oscillator buffers for and A combined / IF counter buffer with counter enable function A field strength level detector for and A soft mute circuit at, adjustable An extra IF amplifier to split up IF filtering Features Low distortion on / level/indicator circuit A DC / switch facility Supply voltages 2.7 to 5 V A local distance switch facility (LOCAL-DX) at All pins are ESD protected PACKAGE OUTLINE 32-lead shrink DIL; plastic (SOT232); SOT232-; 996 September 9. March 99 2
/ radio receiver circuit QUICK REFERENCE DATA PARETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT Supply voltage (pin 9) V P 2.7 5 V Total current consumption part I P 3 ma part I P 24 ma Operating ambient temperature range T amb 40 +85 C performance (pin 22) note Sensitivity V o = 0 mv V i 3.5 µv (S + N)/N = 26 db V i 6 µv Signal-to-noise ratio V i = mv (S + N)/N 48 db AF voltage V o 50 mv Total harmonic distortion THD 0.8 % Signal handling m = 80%; THD = 8% V i 00 mv performance (pin 30) note 2 Limiting sensitivity 3 db; note 3 V i 2.5 µv Signal-to-noise ratio V i = 3 µv (S + N)/N 26 db V i = mv (S + N)/N 60 db AF voltage V o 90 mv Total harmonic distortion THD 0. % Maximum signal handling V i 200 mv suppression 00 µv < V i < 00 mv S 50 db Notes to the quick reference data. All parameters are measured in the application circuit (see Fig.5) at nominal supply voltage V p = 8.5 V; T amb = 25 C; unless otherwise specified. RF conditions: Input frequency MHz; 30% modulated with f mod = khz; unless otherwise specified. 2. All parameters are measured in the application circuit (see Fig.5) at nominal supply voltage V p = 8.5 V; T amb = 25 C; unless otherwise specified. RF conditions: Input frequency 00 MHz; frequency deviation f = 22.5 khz and f mod = khz; unless otherwise specified. 3. Soft mute switched off. March 99 3
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... March 99 4 oscillator GND ( front-end) RF RF input RF decoupled RF AGC IF input 26 32 28 30 3 29 4 OSCILLATOR BUFFER BUFFER RF PLIFIER AGC IF PLIFIER IF 2.3 V IF oscillator GND (oscillator buffer) MIXER RF input 9 22 mixer oscillator RF PLIFIER front-end RF decoupled BUFFER RF.6 V 23 handbook, full pagewidth mixer MIXER BUFFER OSCILLATOR OSCILLATOR LEVEL CONTROLLER RF STABILIZER V P IF GND.6 V Fig. Block diagram. 2.3 V oscillator demodulator AGC AGC LEVEL DETECTOR IF LIMITER IF 2.3 V IF input IF input IF PLIFIER DETECTOR LEVEL DETECTOR AF SOFT MUTE DEMODULATOR IF counter IF BUFFER 3 5 7 2 8 27 9 0 24 8 6 7 20 2 6 25 5 4 IF counter enable input 3 2 MLA283 / level indicator soft mute demodulator AF / / radio receiver circuit Philips Semiconductors
/ radio receiver circuit handbook, full pagewidth IF + soft mute I level IF + p6 V ref 32 GND front-end RF + mixer 2.3 V 2 RF + MIXER 2.5 3 RF decoupled.6 V IF 2.3 V IF input 2.3 V IF 2.2 V 3 4 5 360 Ω (4 x) 330 Ω OSC OSC 330 Ω 330 Ω IF + p6 2.5 30 29 28 RF input 0.9 V RF AGC to 0.3 V RF IF 2.3 V IF input 2.3 V 6 7 360 Ω (3 x) IF + p6 RF + 27 26 RF stabilizer.6 V oscillator + stabilizer 2.3 V 8 IF + p8 IF + p8 25 Ω 25 oscillator 2.7 to 5 V GND ( - IF ) V P 9 0 3.9 +.7 4.2 V ref 24 23 voltage stabilizer.6 V RF decoupled. V demodulator.3 V IF + p8 + 22 RF input AF / ~ 0.3 V ~. V / level indicator 2 3 V P 2.7 0.3 8.9 + IF + p8 2 20 IF counter enable input IF counter IF input 0.8 V AGC.5 to. V 4 5 AGC.5 4 AGC V ref 2 + 2 50 Ω 700 Ω RF + 9 8 GND (oscillator buffer) oscillator mixer.6 V 6 + 300 Ω 7 oscillator OSC OSC Fig.2 Equivalent circuit diagram. MLA284 March 99 5
/ radio receiver circuit PINNING handbook, full pagewidth soft mute 32 GND ( front-end) mixer 2 3 RF decoupled IF 2.3 V 3 30 RF input IF input 4 29 RF AGC IF 5 28 RF IF 2.3 V 6 27 front-end voltage stabilizer IF input 7 26 oscillator stabilizer 2.3 V +V P 8 9 25 24 oscillator voltage stabilizer GND (-IF ) 0 23 RF decoupled demodulator 22 RF input AF / 2 2 IF counter enable input / level indicator 3 20 IF counter IF input 4 9 GND (oscillator buffer) AGC 5 8 oscillator mixer 6 7 oscillator MLA285 - Fig.3 Pinning diagram. March 99 6
/ radio receiver circuit RATINGS Limiting values in accordance with the Absolute Maximum System (IEC 34) PARETER CONDITIONS SYMBOL MIN. MAX. UNIT Supply voltage (pin 9) V P 8 V Total power dissipation P tot see Fig.4 Storage temperature range T stg 65 +50 C Operating ambient temperature range T amb 40 +85 C Electrostatic handling () V es 2000 +2000 V Note. Equivalent to discharging a 200 capacitor through a.5 series resistor. 3 handbook, halfpage MLA286 P tot (W) 2 0 50 0 50 00 50 T amb ( o C) Fig.4 Power derating curve. March 99 7
/ radio receiver circuit DC CHARACTERISTICS All voltages are referenced to pin 0, pin 9 and pin 32; all input currents are positive; all parameters are measured in application circuit (see Fig.5) at nominal supply voltage V P = 8.5 V; T amb = 25 C unless otherwise specified. PARETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT Supply voltage V P 2.7 8.5 5 V Voltages () Pin 4 V 4 2.3 V Pin 5 V 5 2.2 V Pin 7 V 7 2.3 V Pin 8 V 8 2.3 V Pin 2 V 2.5 V Pin 27 V 27.6 V Pin 29 V 29.0 V Pin 30 V 30 0.9 V Pin 3 V 3.6 V Voltages () Pin 2 V 2 0.2 V Pin 4 V 4 0.8 V Pin 5 V 5.54 V Pins 22 and 23 V 22, V 23. V Pin 24 V 24.6 V Total current consumption part I P 3 () ma part I P 24 () ma Note. Value to be fixed. March 99 8
/ radio receiver circuit AC CHARACTERISTICS All parameters are measured in test circuit (see Fig.6) at nominal supply voltage V P = 6 V; T amb = 25 C unless otherwise specified. SECTION PARETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT front end note Conversion transconductance V i = 0 mv V AGC (pin 5) = V 24-0. V S C 3.5 ma/v V AGC = V 24-0.45 V S C.2 ma/v IF suppression note 2 α 20 30 db Oscillator (pin 25) Voltage f =.5 MHz V osc 60 mv Oscillator buffer Output voltage (peak-to-peak value) V 8 40 mv IF and detector part note 3 IF sensitivity; AF voltage no AGC; V i(if) = 90 µv V o 30 40 60 mv Signal + noise to noise no AGC; ratio for an IF input V i(if) = 90 µv S+N/N 22 24 30 db AF voltage V i(if) = mv V o 35 50 70 mv Total harmonic distortion V i(if) = 0 mv; m = 80% THD 0.75 2 5 % V i(if) = to mv; m = 30% THD % Indicator/level detector Output voltage V i(if) = 0 V V 3 560 mv V i(if) = 200 µv V 3 3200 mv V i(if) = 0 mv V 3 6600 mv IF counter buffer Counter enable Output voltage (peak-to-peak value) V 20 00 25 mv Counter disable Suppression of 468 khz V 20 40 db Overall performance note 4 Total harmonic distortion V i(rf) = 50 mv THD 8 % Signal handling THD = %; m = 0.8% March 99 9
/ radio receiver circuit PARETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT Counter enable circuit IF counter OFF V 2 0.8 V IF counter ON V 2 2 V P V SECTION front end note 5 Conversion transconductance V i(rf) = mv; V AGC =. V S c 6 24 32 ma/v V i(rf) = mv; V AGC = 0.8 V S c 5 0 5 ma/v Oscillator (pin 26) Voltage V osc 250 - mv Oscillator buffer Output voltage (peak-to-peak value) V 7 270 mv IF and demodulator part note 6 IF sensitivity note 7 AF voltage V i(if) = 40 µv no mute V o 3 0 db with mute V o 20 30 40 db suppression note 8 α - db Signal + noise-to-noise no mute; ratio for an IF input V i(if) = 40 µv S+N/N 28 46 50 db V i(if) = mv S+N/N db AF voltage V i(if) = mv V o 85 mv Total harmonic distortion V i(if) = 50 mv f = 75 khz THD % f = 22.5 khz THD % Indicator/level detector Output voltage V i(if) = 0 V V 3 2600 mv V i(if) = 50 µv V 3 5750 mv V i(if) = mv V 3 6250 mv / IF counter buffer Counter enable note 5 Output voltage (peak-to-peak value) V 20 30 mv Counter disable Suppression of 0.7 MHz V 20 40 - db March 99 0
/ radio receiver circuit PARETER CONDITIONS SYMBOL MIN. TYP. MAX. UNIT Counter enable circuit v IF counter OFF V 2 0.8 V IF counter ON V 2 2 V P V / switch OFF/ ON V 8-0 0 0 V ON/ OFF V 24-0 0 0 V Notes to the characteristics. Input frequency = MHz, frequency = 468 khz; S C = V o( IF) ---------------- V i( RF) N2 N3 ------------------- ( see TR2 Component data) R Where R =.2 (total impedance at pin 6). 2. α = 20 log (V i at f i = 468 khz)/(v i at f i = MHz); V o = 0 mv; no AGC. 3. Input frequency = 468 khz; m = 30% modulated with f mod = khz; R source = 800 Ω unless otherwise specified. 4. Front-end connected to IF plus detector part (see Fig.5). Input frequency = MHz; m = 80% modulated with f mod = khz. 5. Input frequency = 00 MHz, frequency = 0.7 MHz; S c = V o( IF) ---------------- V i( RF) N N2 ------------------- ( see TR3 Component data) R Where R = 6.6 (total impedance at pin 2). 6. Input frequency = 0.7 MHz; frequency deviation, f = 22.5 khz and f mod = khz; unless otherwise specified. 7. Reference: AF voltage = 0 db at V i(if) = mv; No mute: V = V 8 ; With mute: V = 0 V. 8. suppression is measured with only: m = 0.8% and f mod = khz referred to AF at only: f = 75 khz and f mod = khz. 9. Value to be fixed. March 99
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... March 99 2 4.7 µf 32 68 N 3 nf TR 50 Ω 560 Ω 9 Ω N2 27 Ω 8.2 30 688 2 For coil information see Component data. 00 BB204B nf nf L 22 nf 47 K2 29 µf 22 nf SFE 0.7MS3 56 Ω 3.3 28 K2 47 00 BB204G nf nf 27 3.3 L2 SFE 0.7MS3 22 nf 26 22 nf 0 nf 00 BB2 TR2 25 5.6 handbook, full pagewidth N N2 47 µf 390 2 3 4 5 6 7 8 9 0 2 3 4 5 6 22 nf 22 nf 22 nf 33 µf 50 Ω Fig.5 Application circuit for evaluation. 24 23 K3 22 50 Ω 0 nf CDA 0.7MC 2 mono 22 nf stereo 680 22 20 to pin 24 9 K SFZ468HL3 8 33 µf N3 TR3 N N2 7 MLA287 80 APPLICATION AND TEST INFORMATION / radio receiver circuit Philips Semiconductors
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... March 99 3 4.7 µf 32 00 nf N2 TR 3 N 00 Ω 75 Ω 62 Ω 4.7 nf 68 30 For coil information see Component data. 29 50 Ω 28 K2 27 SFE 0.7MS3 47 µf 26 00 nf 25 2 3 4 5 6 7 8 9 0 2 3 4 5 6 300 Ω 0.68 µf 00 nf 8-8 274 Ω 22 nf 4.7 L 0 nf 4.7 00 BB4058 L2 5 2 8-8 handbook, full pagewidth MΩ TR2 24 BB204 N2 N 0 00 nf 47 µf 23 Fig.6 Factory test circuit. 00 nf 50 Ω CDA 0.7MC6 47 µf 00 nf 00 nf 22 K3 5 5 nf 2 7.6 22 20 8 9 00 8 N N2.6 0 nf 0 nf 0 nf 00 nf 50 Ω 787 Ω 80 680 nf to pin24 3 7 TR3 N3 MLA288 7 / radio receiver circuit Philips Semiconductors
/ radio receiver circuit Component data COILS handbook, halfpage N N = 4.5 L = 00 µh 2 MLA289 Fig.7 -RF coil (L). TOKO equivalent no. MC5. handbook, halfpage N N = 4.5 L = 94 µh 2 MLA289 Fig.8 oscillator coil (L2). TOKO equivalent no. A294SNS-004NK. handbook, halfpage 3 4 N = 2 N2 = 2 C= 68 (internal) f o = 0.7 MHz Wire = 0.07 mm diameter Coil type TOKO 9BCS-A655BQG C N N2 MLA290 6 Fig.9 -IF coil (TR). handbook, halfpage 3 4 N = 55 N2 = 55 Lprim = 06 µh Wire = 0.05 mm diameter Coil type TOKO 7MCS N N2 MLA29 6 Fig.0 oscillator coil (TR2). March 99 4
/ radio receiver circuit N = 39 N2 = 5 N3 = 9 C = 80 (internal) Lprim = 660 µh f o = 468 MHz Wire = 0.07 mm diameter Coil type TOKO 7MC handbook, halfpage 3 2 C N N2 N3 MLA292 4 6 Fig. -IF coil (TR3). CERIC FILTERS -IF (K). SFZ468HL3. -IF (K2). SFE0.7MS3. detector (K3). CDA0.7MC (MC6). March 99 5
/ radio receiver circuit PACKAGE OUTLINE SDIP32: plastic shrink dual in-line package; 32 leads (400 mil) SOT232- D M E seating plane A 2 A L A Z e b w M c (e ) 32 b 7 M H pin index E 6 0 5 0 mm scale DIMENSIONS (mm are the original dimensions) A A UNIT A 2 () () max. min. max. b b c D E e e L M E M H mm 4.7 0.5 3.8.3 0.8 0.53 0.40 0.32 0.23 29.4 28.5 9. 8.7.778 0.6 3.2 2.8 0.7 0.2 2.2 0.5 w 0.8 () Z max..6 Note. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION REFERENCES IEC JEDEC EIAJ EUROPEAN PROJECTION ISSUE DATE SOT232-92--7 95-02-04 March 99 6
/ radio receiver circuit 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 652 900). 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 0 seconds. If the bit temperature is between 300 and 400 C, contact may be up to 5 seconds. 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. This data sheet contains final product specifications. Limiting values Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 34). 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. March 99 7