INTEGRATED CIRCUITS DATA SHEET TEA5762 Self Tuned Radio (STR) Product specification Supersedes data of 1995 Jun 23 File under Integrated Circuits, IC01 1999 Aug 04 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 FEATURES • High impedance MOSFET input on AM • The tuning system has an optimized IC partitioning both from application (omitting interferences) and flexibility (removable front panel option) point of view: the tuning synthesizer is on-chip with the radio • Wide supply voltage range of 2.5 to 12 V • The tuning quality is superior and requires no IF-counter for stop-detection; it is insensitive to ceramic filter tolerances • Low output distortion • Low current consumption 18 mA at AM and FM (including tuning synthesizer for AM) • Low noise figure • Due to the new tuning concept, the tuning is independent of the channel spacing. • In combination with the microcontroller, fast, low-power operation of preset mode, manual-search, auto-search and auto-store are possible GENERAL DESCRIPTION • The local (internal) controller function facilitates reduced and simplified microcontroller software The TEA5762 is a 44-pin integrated AM-radio and FM-IF and demodulator part including a novel tuning concept. The radio part is based on the TEA5712. • The high integration level means fewer external components with regard to the communication between the radio and the microcontroller and a simple and small Printed-Circuit Board (PCB) It is designed for the use with an external FM front-end. The new tuning concept combines the advantages of hand tuning with electronic facilities and features. User ‘intelligence’ is incorporated into the tuning algorithm and an improvement of the analog signal processing is used for the AFC function. • The inherent FUZZY LOGIC behaviour of the Self Tuned Radio (STR), which mimics hand tuning and yields a potentially fast yet reliable tuning operation • The level of the incoming signal at which the radio must lock is software programmable • Two programmable ports • FM-on/off port to control the external FM front-end • High selectivity with distributed IF gain • Soft mute • Signal dependent stereo-blend ORDERING INFORMATION PACKAGE TYPE NUMBER NAME TEA5762H QFP44 1999 Aug 04 DESCRIPTION plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 × 10 × 1.75 mm 2 VERSION SOT307-2 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 QUICK REFERENCE DATA SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCC1 supply voltage 2.5 − 12 V VCC2 supply voltage for tuning − − 12 V Vtune tuning voltage 0.7 − VCC2 − 0.75 V ICC1 supply current AM mode 12 15 18 mA FM mode 13 16 19 mA AM mode − 3.3 − mA FM mode IDD supply current − 2.7 − mA ICC2 supply current for tuning in preset mode (band-end to band-end) − − 800 µA Tamb ambient temperature −15 − +60 °C AM performance; note 1 V10 AF output voltage Vi1 = 5 mV 36 45 70 mV Vi1 RF sensitivity input voltage S/N = 26 dB 40 55 70 µV THD total harmonic distortion Vi1 = 1 mV − 0.8 2.0 % FM performance; note 2 V10 AF output voltage Vi4 = 5 mV 40 48 57 mV Vi4 IF sensitivity input voltage V10 = −3 dB; V10 = 0 dB at Vi4 = 10 mV − 20 30 µV THD total harmonic distortion IF filter SFE10.7MS3A20K-A − 0.3 0.8 % Vi4 = 30 mV 26 30 − dB MPX performance; note 3 αcs channel separation Notes 1. VCC1 = 3 V; VCC2 = 12 V; VDDD = 3 V; fi = 1 MHz; m = 0.3; fmod = 1 kHz; measured in Fig.9 with S1 in position A; S2 in position B; unless otherwise specified. 2. VCC1 = 3 V; VCC2 = 12 V; VDDD = 3 V; fi = 10.7 MHz; ∆fm = 22.5 kHz; fm = 1 kHz; measured in Fig.9 with S2 in position A; S3 in position A; unless otherwise specified. 3. VCC1 = 3 V; VCC2 = 12 V; VDDD = 3 V; Vi3(L + R) = 155 mV; Vpilot = 15.5 mV; fi = 1 kHz; measured in Fig.9 with S2 in position B; S3 in position B; unless otherwise specified. 1999 Aug 04 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 ... BUSCLOCK 35 33 29 28 IFGND FMDEM 27 17 18 FSI 21 16 39 FM-ON/OFF FM IF1 TUNER SWITCH FM DETECTOR FM IF2 PILOT DETECTOR 24 PILFIL MO/ST 19 kHz 12 38 34 7 VSTAB(A) VSTAB(B) VCC1 AM/FM INDICATOR STATUS REGISTER SHIFT REGISTER STABILIZER 9 DECODER 1 4 up IN-LOCK down DETECTOR level LAST-STATION MEMORY 5 COUNTI PRESCALER stereo 14 15 4 PROGRAMMABLE COUNTER MULTIPLEXER FM SEQUENTIAL CIRCUIT CHARGE PUMP AM AFRO mono SDS 13 MUTE hard mute MUTE level 25 XTAL 26 WINDOW DETECTOR CRYSTAL OSCILLATOR AFC TEA5762 19 20 DGND 32 2 AM FRONT END AM OSCILLATOR 6 AM IF 40 41 AM-IFI/O2 AM-IFI1 44 31 AGC 30 P1 P0 Fig.1 Block diagram. 8 22 10 TUNE AFO VCC2 42 11 RFGND MPXI 3 RFGND MBE815 Product specification AM-MIXER 36 AFC V/I CONVERTER AM DETECTOR AGC AFC(n) AFC(p) TEA5762 AMOSC AM MIXER handbook, full pagewidth AM-RFI AFLO MATRIX stereo CGND VCO 38 kHz 23 VDDD RIPPLE LFI PLL Philips Semiconductors FM-IFO1 37 DATA WRITEENABLE Self Tuned Radio (STR) FM-IFI1 BLOCK DIAGRAM 1999 Aug 04 FM-IFI2 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 PINNING SYMBOL PIN DESCRIPTION RIPPLE 1 ripple capacitor input AM-RFI 2 AMRF input RFGND 3 RF ground and substrate CGND 4 counter ground COUNTI 5 counter input AMOSC 6 parallel tuned AM-oscillator circuit to ground VCC1 7 supply voltage TUNE 8 tuning output current VCO 9 voltage controlled oscillator input AFO 10 AM/FM AF output (output impedance typical 5 kΩ) MPXI 11 stereo decoder input (input impedance typical 150 kΩ) LFI 12 loop filter input MUTE 13 mute input AFLO 14 left channel output (output impedance typical 4.3 kΩ) AFRO 15 right channel output (output impedance typical 4.3 kΩ) PILFIL 16 pilot detector filter input IFGND 17 ground of IF, detector and MPX stage FMDEM 18 ceramic discriminator input AFC(n) 19 AFC negative output AFC(p) 20 AFC positive output FSI 21 field strength indicator VCC2 22 supply voltage for tuning VDDD 23 digital supply voltage MO/ST 24 mono/stereo and tuning indication output XTAL 25 crystal input DGND 26 digital ground BUS-CLOCK 27 bus-clock input DATA 28 bus data input/output WRITE-ENABLE 29 bus write-enable input P0 30 programmable output port (P0) P1 31 programmable output port (P1) AFC 32 450 kHz LC-input circuit for AM AFC FM-IFI2 33 FMIF input 2 (input impedance typical 330 Ω) VSTAB(B) 34 internal stabilized supply voltage (B) FM-IFO1 35 FMIF output 1 (input impedance typical 330 Ω) AM-IFI/O2 36 input/output to IFT; output: current source FM-IFI1 37 FMIF input 1 (input impedance typical 330 Ω) VSTAB(A) 38 internal stabilized supply voltage (A) FM-ON/OFF 39 FM ON/OFF port AM-MIXER 40 open-collector output to IFT 1999 Aug 04 5 Philips Semiconductors Product specification Self Tuned Radio (STR) SYMBOL TEA5762 PIN DESCRIPTION not connected AGC 44 AGC capacitor input 40 AM-MIXER 41 AM-IFI1 42 RFGND 43 n.c. 44 AGC handbook, full pagewidth RIPPLE 1 33 FM-IFI2 AM-RFI 2 32 AFC RFGND 3 31 P1 CGND 4 30 P0 COUNTI 5 29 WRITE-ENABLE TEA5762H AMOSC 6 28 DATA VCC1 7 27 BUS-CLOCK TUNE 8 26 DGND VCO 9 25 XTAL 6 VCC2 22 FSI 21 AFC(p) 20 AFC(n) 19 FMDEM 18 IFGND 17 PILFIL 16 AFRO 15 23 VDDD AFLO 14 MPXI 11 MUTE 13 24 MO/ST LFI 12 AFO 10 Fig.2 Pin configuration. 1999 Aug 04 34 VSTAB(B) FMRF ground 43 35 FM-IFO1 42 n.c. 36 AM-IFI/O2 RFGND 37 FM-IFI1 IFT or ceramic filter input (input impedance typical 3 kΩ) 38 VSTAB(A) 41 39 FM-ON/OFF AM-IFI1 MBE820 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 FUNCTIONAL DESCRIPTION PRESET OPERATION The TEA5762 is an integrated radio circuit with AM-receiver and FM-IF part with demodulator and stereo decoder. The circuit includes digital tuning and control functions. In preset mode, the microcontroller has to load information such as frequency band, frequency and mono/stereo. This information has to be sent via the bus to the STR. The internal algorithm controls the tuning sequence as follows: The radio 1. The information is loaded into a shift register, a last-station memory and the counter. The AM circuit incorporates a double balanced mixer, a one-pin low-voltage oscillator (up to 30 MHz) and is designed for distributed selectivity. 2. The Automatic Frequency Control (AFC) is switched off. 3. The counter starts counting the VCO frequency and the tuning voltage is varied until the desired frequency roughly equals the real frequency. The AM input is designed to be connected to the top of a tuned circuit. AGC controls the IF amplification and for large signals it lowers the input impedance of the AM front-end. 4. The AFC is then switched on and the counter is switched off. The first AM selectivity can be an IF-Tank (IFT) as well as an IFT combined with a ceramic filter; the second one is an IFT. 5. The real frequency is more precisely tuned to the desired frequency. The frequency of the external VCO is counted in the Self Tuned Radio (STR) tuning system. After the AFC has tuned the real frequency to the desired frequency an in-lock signal can be generated. In order to get a reliable in-lock signal, there are two parameters measured: the field strength and the S-curve. The field strength indicates the strength of the station and by looking at the S-curve the system can distinguish false in-locks from real in-locks (false in-locks occur on the wrong slope of the S-curve). The FM-IF circuit is designed for distributed IF ceramic filters. The FM quadratic detector uses a ceramic resonator. In the FM mode the tuning voltage controls the VCO of the external FM front-end and the frequency of the VCO is counted in the TEA5762. The PLL stereo decoder incorporates a signal dependent stereo-blend circuit and a soft-mute circuit. In the event of fading or pulling the in-lock signal becomes logic 0 and the synthesizer will be switched-on again and the algorithm will be repeated. For FM operation an external FM front-end is necessary. This is switched on and off by the FM-ON/OFF signal which is generated in the bus system. The AFC circuit in the TEA5762 provides a tuning voltage to drive the VCO of the external FM front-end. Tuning SEARCH OPERATION The tuning-concept of Self Tuned Radio (STR) is based on FUZZY LOGIC: it mimics hand tuning (hand tuning is a combination of coarse and fine tuning to the qualitatively best frequency position). As a consequence the tuning system is very fast. During a search operation, the only action the microcontroller has to take is: sending the desired band plus the direction and the search sensitivity level to the STR. The search operation is performed by the charge pump until an in-lock signal is generated (combination of measuring the field strength and the S-curve). The AFC then fine tunes to the station. The frequency belonging to the found station will be counted by the counter and written into the last-station memory and the shift register of the counter. At this time the frequency is available in the shift register and can be read by the microcontroller. The microcontroller decides whether the frequency is within the desired frequency band. If so, this frequency can be stored under a preset and if not, a new search action should be started. The tuning algorithm, which is controlled by the sequential circuit (see Fig.1), is completely integrated; so there are only a few external components needed. The bus and the microcontroller can be kept very simple. The bus only consists of three wires (BUS-CLOCK, DATA and WRITE-ENABLE). The microcontroller must basically give two instructions: • Preset operation • Search operation. 1999 Aug 04 7 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 To ensure that the search function operates correctly under all conditions the following search sequence must be applied: • Store the current frequency in the memory These three signals, together with the mono/stereo pin (MO/ST; pin 24), communicate with the microcontroller. The mono/stereo indicator has two functions, which are controlled by the BUS-CLOCK, as shown in Table 2. • Issue the search command Table 2 • Wait for data valid and read the new frequency • If the new frequency is the same as the stored frequency, issue a pre-set step (e.g. 50 kHz) and start the search sequence again. BUS-CLOCK MO/ST (PIN 24) LOW LOW stereo Description of the bus The TEA5762 radio has a bus which consists of three wires, as shown in Table 1. Table 1 DESCRIPTION software driven clock input 27 DATA data input/output 28 WRITE-ENABLE write/read-input 29 Table 3 LOW HIGH mono HIGH LOW tuned HIGH HIGH not tuned If in search mode no transmitter can be found, all frequency bits of the shift register are set to logic 0. PIN BUS-CLOCK RESULT The TEA5762 has a 25-bit shift register; see Table 3 for an explanation of the shift register bits. Bus signals SIGNAL Bus-clock functions The bus protocol is depicted in Figs 3 and 4. Explanation of the shift register bits BIT S.24 (MSB) D.23 LOGIC STATE DESCRIPTION search start/end search up/down RESULT 0 after a search when a station is found or after a preset 1 during the search action 0 indicates if the radio has to search down 1 indicates if the radio has to search up stereo is allowed M.22 mono/stereo 0 1 mono is required (radio switched to forced mono) B0.21 band see Table 4 selects FM/MW/LW/SW band B1.20 band see Table 4 selects FM/MW/LW/SW band P0.19 port note 1 user programmable bits which e.g. can be used as band switch driver P1.18 port note 1 user programmable bits which e.g. can be used as band switch driver S0.17 search-level of station see Table 5 determines the locking field strength during an automatic search, automatic store or manual search S1.16 search-level of station see Table 5 determines the locking field strength during an automatic search, automatic store or manual search 15 dummy − buffer F.14 to F.0 (LSB) frequency − determine the tuning frequency of the radio; see Table 6 for the bit values 1999 Aug 04 8 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 Note Table 6 1. The output pins 30 and 31 can drive currents up to 5 mA; bits 19 (P0) and 18 (P1) control the output voltage of the control pins P0 (pin 30) and P1 (pin 31): a) Bit 19 (P0) LOW sets P0 (pin 30) to LOW. b) Bit 19 (P0) HIGH sets P0 (pin 30) to HIGH. Values for bits 14 to 0 BIT BIT VALUE FM VALUE(1) (kHz) AM VALUE(2) (kHz) 14 214 − 16384 13 213 102400 8192 c) Bit 18 (P1) LOW sets P1 (pin 31) to LOW. 12 212 51200 4096 d) Bit 18 (P1) HIGH sets P1 (pin 31) to HIGH. 11 211 25600 2048 10 210 12800 1024 9 29 6400 512 8 28 3200 256 Table 4 Truth table for bits 21 and 20 B0 B1 BAND SELECT 0 0 FM(1) 7 27 1600 128 0 1 MW 6 26 800 64 1 0 LW 5 25 400 32 1 1 SW 4 24 200 16 Note 3 23 100 8 1. When FM is selected, the control output FM-ON/OFF is set LOW to switch on the external FM front-end. 2 22 50 4 1 21 25 2 0 20 12.5 1 Table 5 Truth table for bits 16 and 17 Notes SIGNAL RECEPTION(1) S1 S0 FM IF INPUT (µV) AM RF INPUT (µV) 0 0 >50 >28 0 1 >100 >40 1 0 >300 >63 1 1 >1500 >1000 1. FM value of the affected oscillators: FM VALUE = FMRF + FMIF. 2. AM value of the affected oscillators: AM VALUE = AMRF + AMIF. Note 1. The given values for signal reception are corresponding to a −3 dB point of 20 µV for FM. 1999 Aug 04 9 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 READING DATA WRITING DATA While WRITE-ENABLE is LOW data can be read by the microcontroller. At a rising edge of the BUS-CLOCK, data is shifted out of the register. This data is available from the point where the BUS-CLOCK is HIGH until the next rising edge of the BUS-CLOCK occurs (see Fig.3). While WRITE-ENABLE is HIGH the microcontroller can transmit data to the TEA5762 (hard mute is active). At a rising edge of the BUS-CLOCK, the register shifts and accepts one bit into LSB. At clock LOW the microcontroller writes data (see Fig.4). To read the entire shift register 24 clock pulses are necessary. To write the entire shift register 25 clock pulses are necessary. handbook, full pagewidth WRITE-ENABLE data read BUS-CLOCK DATA data available data available after search ready MSB is LOW data shift MBE817 Fig.3 Read data. handbook, full pagewidth WRITE-ENABLE BUS-CLOCK DATA MBE818 data shift data change Fig.4 Write data. 1999 Aug 04 10 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 BUS TIMING handbook, full pagewidth WRITE-ENABLE VIH BUS-CLOCK VIL t HIGH t LOW DATA MBE819 t da Fig.5 Bus timing. Table 7 Digital inputs SYMBOL PARAMETER MIN. MAX. UNIT Digital inputs VIH HIGH-level input voltage 1.4 − V VIL LOW-level input voltage − 0.6 V fclk clock input − 300 kHz tHIGH clock HIGH time 1.67 − µs tLOW clock LOW time 1.67 − µs tda shift register available after ‘search ready’ − 14 µs Timing 1999 Aug 04 11 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER VCC1 supply voltage Ptot total power dissipation Tstg Tamb CONDITIONS MIN. MAX. UNIT 0 13.2 V − 250 mW storage temperature −65 +150 °C operating ambient temperature −15 +60 °C Tj operating junction temperature −15 +150 °C Ves electrostatic handling for all pins − ±200 V Tamb = 70 °C note 1 Note 1. Charge device model; equivalent to discharging a 200 pF capacitor via a 0 Ω series resistor. THERMAL CHARACTERISTICS SYMBOL Rth(j-a) 1999 Aug 04 PARAMETER CONDITIONS thermal resistance from junction to ambient in free air 12 VALUE UNIT 65 K/W Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 CHARACTERISTICS VCC1 = 3 V; Tamb = 25 °C; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT VCC1 supply voltage 2.5 − 12 V VCC2 supply voltage for tuning − − 12 V VDDD supply voltage for digital part 2.5 − 12 V Vtune tuning voltage 0.7 − VCC2 − 0.75 V ICC2 supply current for tuning in preset mode (band-end to band-end) − − 800 µA fBUS-CLOCK(max) maximum BUS-CLOCK frequency − − 300 kHz ICC1 current consumption during acquisition AM mode of VCC1 FM mode 12 15 18 mA 12.5 15.5 18.5 mA IDD current consumption during acquisition AM mode of IDD FM mode − 4.8 − mA − 5.5 − mA ICC1 current consumption after acquisition of VCC1 AM mode 12 15 18 mA FM mode 13 16 19 mA IDD current consumption after acquisition of IDD AM mode − 3.2 − mA FM mode − 2.7 − mA tsearch synthesizer auto-search time for empty FM mode band − − 10 s tacq synthesizer preset acquisition time between two band limits FM − 100 − ms MW − 100 − ms LW − 200 − ms SW − 500(1) − ms fband frequency band range of the synthesizer AM mode 0.144 − 30 MHz ∆fFM AFC inaccuracy of FM with Mitsumi front-end − − 1 kHz ∆fAM AFC inaccuracy of AM − − 100 Hz IP0/P1(sink) sink current of software programmable VCC1 = 5 V output P0/P1 4 6 − mA IP0/P1(source) source current of software programmable output P0/P1 5 9 − mA VCC1 = 5 V Note 1. Depending on band. 1999 Aug 04 13 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 AM CHARACTERISTICS Input frequency = 1 MHz; m = 0.3; fmod = 1 kHz; measured in test circuit at pin 10 (see Fig.9); S2 in position B; Vi1 measured at input of matching network at pin 2; matching network adjusted to maximum output voltage at low input level; refer to test circuit (see Fig.9); unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V10 AF output voltage Vi1 = 5 mV 36 45 70 mV Vi1 RF sensitivity S/N = 26 dB 40 55 70 µV Vil large signal voltage handling capacity m = 0.8; THD ≤ 8% 150 300 − mV PSRR power supply ripple rejection ∆V7 = 100 mV (RMS); 100 Hz; V7 = 3.0 V − −47 − dB V 10 --------- ∆V 7 Ii input current (pin 2) V44 = 0.2 V − 0 − µA Ci input capacitance (pin 2) V44 = 0.2 V − − 4 pF Gc front-end conversion gain V44 = 0.2 V 5 10 14 dB V44 = 0.9 V −26 −14 0 dB − 50 − dB S/N signal-to-noise ratio THD total harmonic distortion Vi1 = 1 mV − 0.8 2.0 % α450 IF suppression V10 = 30 mV − 56 − dB FM-IF CHARACTERISTICS Input frequency = 10.7 MHz; ∆f = 22.5 kHz; fmod = 1 kHz; measured in test circuit (see Fig.9) at pin 10; S2 in position B; refer to test circuit (see Fig.9); unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V10 AF output voltage Vi4 = 10 mV 40 48 57 mV Vi4 IF limiting sensitivity V10 = −3 dB; V10 = 0 dB at Vi4 = 10 mV − 50 80 µV PSRR power supply ripple rejection ∆V7 = 100 mV (RMS); 100 Hz; V7 = 3.0 V −44 − − dB 62 − − dB 0.3 0.8 % V 10 --------- ∆V 7 S/N signal-to-noise ratio Vi4 = 10 mV THD total harmonic distortion IF filter SFE10.7MS3A20K-A − 1999 Aug 04 14 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 STEREO DECODER CHARACTERISTICS Vi3(L + R) = 155 mV; Vpilot = 15.5 mV; f = 1 kHz; apply unmodulated RF-signal of 100 mV to front-end to set radio to maximum channel separation; soft mute off (S4 in position A); unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V14/15 AF output voltage − 160 − mV Vpilot(s) switch to stereo − 8 12 mV Vpilot(m) switch to mono 2 5 − mV VAF-L/Vi3 MPX voltage gain −1.5 − +1.5 dB S/N signal-to-noise ratio − 74 − dB Vpilot = 15.5 mV (stereo) THD total harmonic distortion − 0.5 1.0 % αcs channel separation 26 30 − dB α19 carrier and harmonic suppression 19 kHz (200 mV) = 0 dB 27 32 − dB 38 kHz 16 21 − dB α38 α mute(s) stereo-blend soft mute depth Vi4 = 5 mV 22 30 − dB Vi4 = 200 µV − 1 2 dB Vi4 = 30 µV; V14 = V15 −1 0 − dB Vi4 = 10 µV; V14 = V15 − −6 −10 dB TUNING CHARACTERISTICS SYMBOL VFM PARAMETER FM voltage levels high (auto-store/search) VAM mute(h) TYP. MAX. UNIT α−3 dB-point at Vi4 = 20 µV S0 = 1; S1 = 1 600 1500 5000 µV medium (auto-store/search) S0 = 0; S1 = 1 100 300 550 µV S0 = 1; S1 = 0 40 100 200 µV nominal (preset mode/tuning indication) S0 = 0; S1 = 0 30 50 90 µV AM voltage levels α−3 dB-point at Vi4 = 20 µV high (auto-store/search) S0 = 1; S1 = 1 400 1000 2500 µV medium (auto-store/search) S0 = 0; S1 = 1 50 63 80 µV low (auto-store/search) S0 = 1; S1 = 0 32 40 50 µV S0 = 0; S1 = 0 25 28 40 µV FM mode − 3 − µV AM mode − 25 − µV − 60 − dB AFC voltage off mode hard mute 1999 Aug 04 MIN. low (auto-store/search) nominal (preset mode/tuning indication) VAFC(off) CONDITIONS α−3 dB-point at Vi4 = 20 µV WRITE-ENABLE = HIGH 15 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 ... 0 20 40 60 80 100 (dBµV) (dB) 0 (1) 120 9 THD (%) 8 −10 7 −20 6 −30 5 (2) 16 −40 4 −50 3 −60 2 (3) −70 −80 10−7 Philips Semiconductors −20 10 Self Tuned Radio (STR) 1999 Aug 04 handbook, full pagewidth 1 10−6 10−5 10−4 10−3 10−2 10−1 0 Vi1 (V) 1 MBE853 Product specification Fig.6 AM mode. TEA5762 (1) Audio signal. (2) Noise. (3) Harmonic distortion. 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 ... 40 60 80 100 (dBµV) (dB) (1) 0 120 9 THD (%) 8 (3) −10 7 −20 Philips Semiconductors 20 10 Self Tuned Radio (STR) 1999 Aug 04 handbook, full 0 pagewidth 6 (4) −30 5 −40 4 (2) 17 −50 3 (5) −60 2 (6) −70 1 (7) −80 10−6 10−5 10−4 10−3 10−2 10−1 0 Vi1 (V) 1 MBE854 Fig.7 FM mode. Product specification Mono signal. Noise in mono mode. Left channel with modulation left. Right channel with modulation left. Noise in stereo mode. Harmonic distortion ∆f = 75 kHz. Total harmonic distortion ∆f = 22.5 kHz. TEA5762 (1) (2) (3) (4) (5) (6) (7) Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 INTERNAL CIRCUITRY Table 8 Equivalent pin circuits and pin voltages PIN 1 SYMBOL RIPPLE DC VOLTAGE (V) AM FM 2.1 2.1 EQUIVALENT CIRCUIT 7 1 kΩ 1 3 kΩ MBE821 17 2 AM-RFI 0 70 pF 0 4 2 MBE822 3 RFGND − − 4 CGND 0 0 5 COUNTI 0 0 5 4 6 AMOSC 0 MBE823 0 6 4 7 VCC1 1999 Aug 04 3.0 3.0 18 MBE824 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN 8 SYMBOL TUNE TEA5762 DC VOLTAGE (V) AM FM − − EQUIVALENT CIRCUIT 22 8 MBE825 26 9 VCO 1.3 0.95 1 kΩ 9 10 kΩ MBE826 17 10 AFO 0.6 0.7 10 5 kΩ MBE827 17 11 MPXI 1.23 1.23 150 kΩ 150 kΩ 11 9.5 kΩ 17 1999 Aug 04 19 MBE828 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN 12 SYMBOL LFI TEA5762 DC VOLTAGE (V) AM FM 0.1 0.8 EQUIVALENT CIRCUIT 4 kΩ 13 kΩ 12 MBE829 17 13 MUTE 0.7 0.7 7 kΩ 50 kΩ 13 MBE830 17 14 AFLO 0.65 0.65 14 5 kΩ MBE831 17 15 AFRO 0.65 0.65 15 5 kΩ 17 1999 Aug 04 20 MBE832 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN 16 SYMBOL PILFIL TEA5762 DC VOLTAGE (V) AM FM 0.95 0.95 EQUIVALENT CIRCUIT 16 10 kΩ 10 kΩ MBE833 17 17 IFGND 0 0 18 FMDEM − 1.0 180 Ω 18 910 Ω MBE834 17 19 AFC(n) − − 20 AFC(p) − − 10 kΩ 10 kΩ 19/20 MBE835 21 FSI − − 1.4 V 40 kΩ 21 12 to 34 kΩ (dependent on bits 16 and 17) 26 MBE836 22 VCC2 − − 23 VDDD 3.0 3.0 1999 Aug 04 21 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN 24 SYMBOL MO/ST TEA5762 DC VOLTAGE (V) AM FM − − EQUIVALENT CIRCUIT 24 100 Ω MBE837 26 25 XTAL − − 50 kΩ 50 kΩ 50 kΩ 25 MBE838 26 26 DGND 0 0 27 BUS-CLOCK − − 27 MBE839 26 28 DATA − − 29 WRITEENABLE − − 100 Ω 28 100 kΩ 50 kΩ 29 26 1999 Aug 04 22 MBE840 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN 30 SYMBOL P0 TEA5762 DC VOLTAGE (V) AM FM − − EQUIVALENT CIRCUIT 23 120 Ω 100 kΩ 30 20 kΩ MHA108 26 31 P1 − − 23 120 Ω 100 kΩ 31 20 kΩ MHA109 26 32 AFC − − 34 20 kΩ 32 MBE842 33 FM-IF12 − 0.73 34 140 Ω 33 2.2 kΩ 17 1999 Aug 04 23 6 pF MBE843 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN 34 SYMBOL VSTAB(B) TEA5762 DC VOLTAGE (V) AM FM 1.4 1.4 EQUIVALENT CIRCUIT 7 1 kΩ 1 MBE844 34 35 FM-IFO1 − 0.69 34 560 Ω 35 MBE845 36 AM-IFI/O2 1.4 1.4 34 36 3.6 kΩ 3.6 kΩ MBE846 17 37 FM-IFI1 − 0.73 38 140 Ω 37 1.9 kΩ MBE847 17 38 VSTAB(A) 1.4 1.4 6 pF 7 1 kΩ 1 38 1999 Aug 04 24 MBE848 Philips Semiconductors Product specification Self Tuned Radio (STR) PIN 39 SYMBOL FM-ON/OFF TEA5762 DC VOLTAGE (V) AM FM − − EQUIVALENT CIRCUIT 500 Ω 39 MBE849 26 40 AM-MIXER 1.4 1.4 40 38 MBE850 41 AM-IF1I 1.4 1.4 38 3 kΩ 41 7.5 kΩ 7.5 kΩ MBE851 17 42 RFGND2 0 0 43 n.c. − − 44 AGC 0.1 0.7 1 kΩ 1 kΩ 1 kΩ 44 17 1999 Aug 04 25 MBE852 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 ... K1 150 Ω IF-OUT VSTAB(B) VCC 220 Ω (7) VTUNE 220 kΩ K2 DATA GND AGC 470 pF n.c. K3 BUSCLOCK WRITEENABLE (8) 100 nF 150 kΩ 35 37 ANT 33 29 28 27 17 18 21 10 kΩ 39 16 2.2 µF VCC1 10 kΩ 68 kΩ VCC1 24 VSTAB(A) 38 VSTAB(B) 34 MO/ST 470 nF 12 7 2.2 kΩ 10 Ω 100 nF 23 220 nF 470 nF 9 68 kΩ 100 1 µF 26 5 50 kΩ 12 nF 100 nF (11) TEA5762 14 AFLO 120 Ω 4 15 25 75 kHz AFRO 100 nF (11) 12 nF 13 (10) 26 GND Philips Semiconductors 150 Ω Self Tuned Radio (STR) (6) OSC-OUT TEST AND APPLICATION INFORMATION 1999 Aug 04 VSTAB(A) FM front-end Mitsumi FE415-G11 19 470 nF 4.7 µF TUNE 20 47 kΩ BB112 (9) 2 22 nF L1 (1) 32 18 pF 6 40 41 36 44 31 30 8 22 10 11 3 10 µF (2) L2 VSTAB(B) L5 (5) 220 nF (3) 470 pF 10 nF (9) Fig.8 Application diagram. TUNE VCC2 Product specification VSTAB(B) P0 TEA5762 TUNE P1 VSTAB(A) 330 pF MBE816 L4 BB112 47 kΩ See Table 9 for figure notes. 470 nF (4) L3 handbook, full pagewidth 18 pF 18 pF 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 ... VSTAB(B) 50 Ω 10.7 MHz (7) 1 nF BUSCLOCK WRITEENABLE K2 (8) 37 VCC1 100 nF K1 35 33 29 28 27 17 18 21 16 39 FM-ON/OFF FM IF1 TUNER SWITCH FM DETECTOR FM IF2 PILOT DETECTOR MO/ST 24 19 kHz 12 VCC1 38 34 7 VSTAB(A) VSTAB(B) AM/FM INDICATOR STATUS REGISTER SHIFT REGISTER 38 kHz (11) 4 10 pF TUNE (6) BB804 PRESCALER stereo PROGRAMMABLE COUNTER 27 (9) DGND mono stereo FM SEQUENTIAL CIRCUIT AM L1 1 MHz 6.8 Ω 100 nF AFLO CHARGE PUMP AFRO 100 nF (11) 12 nF SDS 13 MUTE level S4 A B 4.7 µF 25 26 WINDOW DETECTOR CRYSTAL OSCILLATOR AFC 8.2 kΩ TEA5762 19 20 50 Ω Vi1 43 Ω 12 nF MATRIX hard mute 75 kHz 50 kΩ 14 15 MULTIPLEXER L6 up IN-LOCK down DETECTOR level LAST-STATION MEMORY 5 18 kΩ 68 kΩ DECODER 100 1 µF 220 nF 470 nF 9 23 100 nF 470 nF 2.2 kΩ PLL STABILIZER 10 Ω 10 kΩ 2.2 µF Philips Semiconductors 330 Ω Self Tuned Radio (STR) 1999 Aug 04 DATA 50 Ω Vi4 470 nF 32 (1) 2 AM FRONT END AM OSCILLATOR AM MIXER AM IF V/I CONVERTER AM DETECTOR AGC VSTAB(B) L5 (5) 680 pF 6 40 41 L2 36 44 31 30 10 µF S1 S2 450 kHz VSTAB(B) P1 P0 Fig.9 Test circuit. B 330 pF S3 220 nF Vi3 50 Ω 5 kΩ 50 Ω TUNE VCC2 MPXI MBE814 TEA5762 TUNE VSTAB(A) handbook, full pagewidth 220 µF Vi2 50 Ω 470 pF 10 nF L4 Product specification (3) 470 nF A 3 kΩ (10) 47 kΩ 3 A B (4) L3 BB112 11 B A See Table 9 for figure notes. 10 (2) 18 pF 18 pF 8 22 Philips Semiconductors Product specification Self Tuned Radio (STR) Table 9 TEA5762 Test and application components FIGURE NOTE DESCRIPTION Application diagram; see Fig.8 1 L1 = 250 mH ferroceptor 2 L2 = 7P 7DRS-11459N, 110 µH at 796 kHz, Q = 80 TOKO 3 L3 = 7P A7MCS-11844N, C = 180 pF, Q = 90 TOKO 4 L4 = 7P A7MCS-11845Y, C = 180 pF, Q = 90 TOKO 5 L5 = 7P A7MCS-11845Y, C = 180 pF, Q = 90 TOKO 6 K1 = SFE10.7MS3 MURATA 7 K2 = SFE10.7MS3 MURATA 8 K3 = CDA10.7-MG40-A discriminator ∆f = 20 kHz MURATA 9 alternatively BB512 (Siemens) or KV1561A TOKO 10 standard application: ±30 ppm at Tamb = 25 °C short wave application: ±20 ppm at Tamb = 25 °C 11 de-emphasis time constant is 50 µs: Cdeem = 12 nF de-emphasis time constant is 75 µs: Cdeem = 18 nF Test circuit; see Fig.9 1 K1 = SFE10.7MS3 MURATA 2 K2 = CDA10.7-MG40-A discriminator ∆f = 20 kHz MURATA 3 L1 = 22281-30091 4 L2 = 7P 7DRS-11459N, 110 µH at 796 kHz, Q = 80 TOKO 5 L3 = 7P A7MCS-11844N, C = 180 pF, Q = 90 TOKO 6 L4 = 7P A7MCS-11845Y, C = 180 pF, Q = 90 TOKO 7 L5 = 7P A7MCS-11845Y, C = 180 pF, Q = 90 TOKO 8 L6 = S18 301SS-0200 9 standard application: ±30 ppm at Tamb = 25 °C short wave application: ±20 ppm at Tamb = 25 °C 10 11 alternatively BB512 (Siemens) or KV1561A TOKO de-emphasis time constant is 50 µs: Cdeem = 12 nF de-emphasis time constant is 75 µs: Cdeem = 18 nF 1999 Aug 04 28 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 PACKAGE OUTLINE QFP44: plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 x 10 x 1.75 mm SOT307-2 c y X A 33 23 34 22 ZE e E HE A A2 wM (A 3) A1 θ bp Lp pin 1 index L 12 44 1 detail X 11 wM bp e ZD v M A D B HD v M B 0 2.5 5 mm scale DIMENSIONS (mm are the original dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HD HE L Lp v w y mm 2.10 0.25 0.05 1.85 1.65 0.25 0.40 0.20 0.25 0.14 10.1 9.9 10.1 9.9 0.8 12.9 12.3 12.9 12.3 1.3 0.95 0.55 0.15 0.15 0.1 Z D (1) Z E (1) 1.2 0.8 1.2 0.8 θ o 10 0o Note 1. Plastic or metal protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION REFERENCES IEC JEDEC EIAJ ISSUE DATE 95-02-04 97-08-01 SOT307-2 1999 Aug 04 EUROPEAN PROJECTION 29 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 • Use a double-wave soldering method comprising a turbulent wave with high upward pressure followed by a smooth laminar wave. SOLDERING Introduction to soldering surface mount packages This text gives a very brief insight to a complex technology. A more in-depth account of soldering ICs can be found in our “Data Handbook IC26; Integrated Circuit Packages” (document order number 9398 652 90011). • For packages with leads on two sides and a pitch (e): – larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; There is no soldering method that is ideal for all surface mount IC packages. Wave soldering is not always suitable for surface mount ICs, or for printed-circuit boards with high population densities. In these situations reflow soldering is often used. – smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves at the downstream end. • For packages with leads on four sides, the footprint must be placed at a 45° angle to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves downstream and at the side corners. Reflow soldering 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. 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. Several methods exist for reflowing; for example, infrared/convection heating in a conveyor type oven. Throughput times (preheating, soldering and cooling) vary between 100 and 200 seconds depending on heating method. 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. Typical reflow peak temperatures range from 215 to 250 °C. The top-surface temperature of the packages should preferable be kept below 230 °C. Manual soldering Fix the component by first soldering two diagonally-opposite end leads. Use a low voltage (24 V or less) soldering iron applied to the flat part of the lead. Contact time must be limited to 10 seconds at up to 300 °C. Wave soldering Conventional single wave soldering is not recommended for surface mount devices (SMDs) or printed-circuit boards with a high component density, as solder bridging and non-wetting can present major problems. When using a dedicated tool, all other leads can be soldered in one operation within 2 to 5 seconds between 270 and 320 °C. To overcome these problems the double-wave soldering method was specifically developed. If wave soldering is used the following conditions must be observed for optimal results: 1999 Aug 04 30 Philips Semiconductors Product specification Self Tuned Radio (STR) TEA5762 Suitability of surface mount IC packages for wave and reflow soldering methods SOLDERING METHOD PACKAGE REFLOW(1) WAVE BGA, SQFP not suitable HLQFP, HSQFP, HSOP, HTSSOP, SMS not PLCC(4), SO, SOJ suitable suitable(2) suitable suitable LQFP, QFP, TQFP SSOP, TSSOP, VSO suitable not recommended(4)(5) suitable not recommended(6) suitable Notes 1. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect). For details, refer to the Drypack information in the “Data Handbook IC26; Integrated Circuit Packages; Section: Packing Methods”. 2. These packages are not suitable for wave soldering as a s 3. older joint between the printed-circuit board and heatsink (at bottom version) can not be achieved, and as solder may stick to the heatsink (on top version). 4. If wave soldering is considered, then the package must be placed at a 45° angle to the solder wave direction. The package footprint must incorporate solder thieves downstream and at the side corners. 5. Wave soldering is only suitable for LQFP, TQFP and QFP packages with a pitch (e) equal to or larger than 0.8 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.65 mm. 6. Wave soldering is only suitable for SSOP and TSSOP packages with a pitch (e) equal to or larger than 0.65 mm; it is definitely not suitable for packages with a pitch (e) equal to or smaller than 0.5 mm. 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. 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. 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. 1999 Aug 04 31 Philips Semiconductors – a worldwide company Argentina: see South America Australia: 3 Figtree Drive, HOMEBUSH, NSW 2140, Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Computerstr. 6, A-1101 WIEN, P.O. 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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 545002/02/pp32 Date of release: 1999 Aug 04 Document order number: 9397 750 06057