INTEGRATED CIRCUITS DATA SHEET TEA6823T; TEA6825T In Car Entertainment (ICE) car radio Preliminary specification File under Integrated Circuits, IC01 1998 Mar 24 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T FEATURES General • FM mixer for conversion from FM-IF1 = 72.2 MHz to FM-IF2 = 10.7 MHz • AM mixer for conversion from AM-IF1 = 10.7 MHz to AM-IF2 = 450 kHz • FM-IF gain stage Stereo decoder • Crystal oscillator providing mixer frequencies and references for IF-count and stereo decoder • Adjustment-free PLL VCO • FM quadrature demodulator with automatic centre frequency adjustment and THD compensation • Analog control of mono/stereo blend • Level, multi-path and noise detectors • Pilot cancelled • Pilot depending mono/stereo switching • Adjacent channel noise suppression (114 kHz) • Soft mute • Analog control of de-emphasis • Stereo noise cancelling and variable de-emphasis • Integrated low-pass filters for 190 kHz adjacent channel interferences and signal delay for interference absorption circuit. • PLL stereo decoder • Noise blanker • AM IF-amplifier and demodulator GENERAL DESCRIPTION • I2C-bus transceiver with interface to enable direct data transfer to radio front-end The TEA6823T together with the TEA6811T and the TEA6825T together with the TEA6810T form an AM/FM electronic tuned car radio in a double conversion receiver concept. • IF-count for AM and FM • Reference frequency generation for PLL synthesizer. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME DESCRIPTION VERSION TEA6823T VSO56 plastic very small outline package; 56 leads SOT190-1 TEA6825T VSO56 plastic very small outline package; 56 leads; face down SOT190-2 1998 Mar 24 2 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T QUICK REFERENCE DATA SYMBOL VDDA1 PARAMETER analog supply voltage 1 (+5 V; pin 5) CONDITIONS MIN. TYP. MAX. UNIT note 1 4.5 5.0 5.5 V operating range 4.75 5.0 5.25 V FM mode 17 21 25 mA AM mode IDDA1 analog supply current 1 (pin 5) 14 17 21 mA I19 + I20 total FM mixer output current 4.8 6.0 7.2 mA I22 + I23 total AM mixer output current 10 12 14 mA VDDA2 analog supply voltage 2 (pin 28) 7.0 8.5 10 V operating range 8.1 8.5 8.9 V IDDA2 analog supply current 2 (pin 28) FM mode 2.4 3.0 3.6 mA VDDA3 analog supply voltage 3 (+8.5 V; pin 56) note 1 7.0 8.5 10 V IDDA3 analog supply current 3 (pin 56) VDDD digital supply voltage 1 (+5 V; pin 52) note 1 operating range 8.1 8.5 8.9 V FM mode 19 24 28 mA AM mode 9.5 12 15 mA note 1 4.5 5.0 5.5 V operating range 4.75 5.0 5.25 V IDDD digital supply current (pin 52) note 1 8 10 12 mA S+N -------------N signal plus noise-to-noise ratio FM mode; ∆f = 22.5 kHz at pins 43 and 47 66 75 − dB AM mode; m = 0.3 54 60 − dB FM mode; ∆f = 75 kHz − 0.1 0.35 % AM mode THD total harmonic distortion − 1.5 3 % αcs channel separation (adjusted) 40 − − dB Tamb operating ambient temperature −40 − +85 °C Note 1. IC is operating; specified parameters may deviate from limits which are valid for operating range. 1998 Mar 24 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 ... 100 kΩ R39 TR5 VCC1 100 nF 22 100 nF 23 33 100 kΩ R40 100 nF 34 42 100 kΩ R51 33 kΩ 36 68 µF 82 kΩ 2 39 82 kΩ 22 nF 27 kΩ 100 kΩ R41 4.3 kΩ 1 38 220 nF 68 pF 220 nF 43 48 47 45 SOFT MUTE LOW PASS FILTER 25 37 FM-LIMITER AM-AMPLIFIER LEVEL DETECTOR AM/FM SWITCH 330 Ω 35 27 22 nF ÷2/÷6 IFAMPLIFIER 28 LEVEL AMPLIFIER ÷N5 PILOT CANCELLER DIGITAL PHASE DETECTOR LOGIC BLOCK fref 19 kHz 38 kHz 4 56 pF 72.2 MHz PHILIPS 9922 521 00098 or Daiwa AT-49 44 14 BUFFER PEAK DETECTOR ADC MULTIPATH AVERAGE DETECTOR tuning mute MPXDECODER AND MATRIX ADC LEVEL OSCILLATOR 9 11 REFERENCE FREQUENCY PULSE FORMER Vint2 THRESHOLD CONTROL 100 nF Vint1 Vint2 SUPPLY 10 kΩ 10 kΩ 120 kΩ 12 55 40 50 330 Ω VDDD +5 V 220 nF SCL SDA 46 16 49 15 17 18 3.3 MΩ 1 MΩ 2.2 MΩ 1.2 MΩ 51 21 52 33 µF 12 kΩ 100 nF RC 10 kΩ 10 kΩ 3 level 220 nF 100 nF 100 nF 10 Ω 33 kΩ 100 nF VCC 8.5 V Fig.1 Block diagram. 100 nF Vref VDDD +5 V MGK693 VCCA +5 V 47 µF Preliminary specification 330 Ω 53 +8.5 V 4 5 54 47 µF VCC +8.5 V 470 nF NOISE DETECTOR MODULATION DETECTOR 22 µH 56 TEA6823T; TEA6825T 7 SCL TEMP COMPENSATION I2C-BUS 6.8 nF 32 INTERFERENCE DETECTOR AM 6 OUTLEFT radio mute HIGH PASS FILTER PEAK DETECTOR IF COUNTER OUTRIGHT 470 nF 30 41 mono CURRENT SWITCH SDA Vint1 8 10 fref radio mute FM 10 nF 61.5 MHz AVERAGE DETECTOR 20 kHz 13 6.8 nF 31 20 ZS369SCS-2144AJ TR3 100 nF 26 PILOT DETECTOR TEA6823T TEA6825T 19 10.7 MHz VCO 820 kΩ HIGH PASS 60 kHz 29 10.7 MHz PHASE DETECTOR AM DELOG AMPLIFIER 24 100 nF MPX BUFFER AFC AM 10.7 MHz 3.3 nF AMSTOP 62 pF Philips Semiconductors L13 TOKO 7PSAG-1946D = S 220 kΩ LEVELADJ FMSTOP SFE10.7 10 nF 33 kΩ 1.5 nF 10.7 MHz RDS In Car Entertainment (ICE) car radio TOKO P392BC-1977Z BLOCK DIAGRAM ndbook, full pagewidth 1998 Mar 24 Vref Vref 1 kΩ SFP450 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T PINNING SYMBOL PIN DESCRIPTION SYMBOL PIN DESCRIPTION QDET1 1 demodulator tank 1 FMIFAMPOUT 29 FM-IF amplifier output QDET2 2 demodulator tank 2 AFGND 30 AF ground TSWITCH 3 time switch input DEEMPHR 31 de-emphasis capacitor right AGND 4 analog ground DEEMPHL 32 de-emphasis capacitor left VDDA1 5 analog supply voltage 1 (+5 V) AMIF2IN1 33 AM-IF2 input 1 HFBUS1 6 HF bus 1 output; pull-up to +5 V AMIF2IN2 34 AM-IF2 input 2 FMIN2 35 FM limiter input HFBUS2 7 HF bus 2 output; pull-up to +5 V DCFEED 36 DC feed FM limiter FMIN1 37 FM limiter input LEVELADJ 38 level adjustment input CAFC 39 AFC capacitor MPBUF 40 multi-path buffer time constant OUTLEFT 41 AF output left FMSTOP 42 FMSTOP adjustment input RDS/AMSTOP 43 MPX for RDS/AMSTOP adjustment input OUTRIGHT 44 AF output right MPXIN 45 stereo decoder MPX input THRES 46 threshold MPXOUT 47 FM demodulator MPX output XTAL1 8 crystal oscillator 1 XTAL2 9 crystal oscillator 2 fref(p) 10 PLL reference frequency output (p) fref(n) 11 PLL reference frequency output (n) Iref 12 reference current FMIF1IN1 13 72 MHz FM-IF input 1 FMIF1IN2 14 72 MHz FM-IF input 2 TSDR 15 time constant for SDR TSDS 16 time constant for SDS VSDS 17 SDS control voltage input VSDR 18 SDR control voltage input FMIF2OUT1 19 FM mixer output 1 FMIF2OUT2 20 FM mixer output 2 Vref 21 AMIF2OUT1 22 AMAFOUT 48 AM demodulator AF output Vmute/AML 49 mute voltage/AM level LEVELUNWEIG 50 unweighted level output reference voltage output IACCONTR 51 IAC control voltage AM mixer output 1 VDDD 52 digital supply voltage SDA 53 serial data input/output; pull-up to +5 V SCL 54 serial clock input; pull-up to +5 V AMIF2OUT2 23 AM mixer output 2 FMAMDEC 24 FM/AM 10.7 MHz decoupling PHASEDET 25 phase detector output PILDET 26 pilot detector output DGND 55 digital ground FMAM10.7 27 FM/AM 10.7 MHz input VDDA3 56 VDDA2 28 analog supply voltage 2 analog supply voltage 3 (+8.5 V) 1998 Mar 24 5 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T handbook, halfpage handbook, halfpage QDET1 1 56 VDDA3 VDDA3 56 1 QDET1 QDET2 2 55 DGND DGND 55 2 QDET2 TSWITCH 3 54 SCL SCL 54 3 TSWITCH AGND 4 53 SDA SDA 53 4 AGND VDDA1 5 52 VDDD HFBUS1 6 51 IACCONTR HFBUS2 7 50 LEVELUNWEIG XTAL1 8 49 Vmute/AML Vmute/AML 49 8 XTAL1 XTAL2 9 48 AMAFOUT AMAFOUT 48 9 XTAL2 fref(p) 10 47 MPXOUT fref(n) 11 46 Iref 12 FMIF1IN1 13 FMIF1IN2 14 VDDD 52 5 VDDA1 IACCONTR 51 6 HFBUS1 LEVELUNWEIG 50 7 HFBUS2 MPXOUT 47 10 fref(p) THRES THRES 46 11 fref(n) 45 MPXIN MPXIN 45 12 Iref 44 OUTRIGHT 43 RDS/AMSTOP OUTRIGHT 44 13 FMIF1IN1 RDS/AMSTOP 43 TEA6823T 14 FMIF1IN2 TEA6825T TSDR 15 42 FMSTOP FMSTOP 42 15 TSDR TSDS 16 41 OUTLEFT OUTLEFT 41 16 TSDS VSDS 17 40 MPBUF MPBUF 40 17 VSDS VSDR 18 39 CAFC CAFC 39 18 VSDR FMIF2OUT1 19 38 LEVELADJ FMIF2OUT2 20 37 FMIN1 Vref 21 36 DCFEED AMIF2OUT1 22 35 FMIN2 AMIF2OUT2 23 34 FMAMDEC 24 PHASEDET LEVELADJ 38 19 FMIF2OUT1 FMIN1 37 20 FMIF2OUT2 DCFEED 36 21 Vref FMIN2 35 22 AMIF2OUT1 AMIF2IN2 AMIF2IN2 34 23 AMIF2OUT2 33 AMIF2IN1 AMIF2IN1 33 24 FMAMDEC 25 32 DEEMPHL DEEMPHL 32 25 PHASEDET PILDET 26 31 DEEMPHR DEEMPHR 31 26 PILDET FMAM10.7 27 30 AFGND VDDA2 28 29 FMIFAMPOUT AFGND 30 FMIFAMPOUT 29 28 VDDA2 MHA701 MHA700 Fig.2 Pin configuration for TEA6823T. Fig.3 Pin configuration for TEA6825T (top view). A 3rd order low-pass filter (fg = 90 kHz) at the MPX input provides an extra 190 kHz ACI suppression. FUNCTIONAL DESCRIPTION Stereo decoder An interference gate is connected at the MPX demodulator outputs. For AM the VCO is switched off. By changing the value of the input resistor at pin 12 the MPX input can be adapted to the level of the FM demodulator output (see Fig.16). 1998 Mar 24 27 FMAM10.7 6 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT VDDA1 analog supply voltage 1 (pin 5) −0.3 +6.5 V VDDA2 analog supply voltage 2 (pin 28) −0.3 +12 V VDDA3 analog supply voltage 3 (pin 56) −0.3 +12 V VDDD digital supply voltage (pin 52) −0.3 +6.5 V Tstg storage temperature −55 +150 °C Tamb operating ambient temperature −40 +85 °C Ves electrostatic handling pins 8 and 9 −100 +100 V all other pins −300 +300 V note 1 Note 1. Charge device model class B: equivalent to discharging a 200 pF capacitor via a 0 Ω series resistor. CHARACTERISTICS V56-4 = V28-4 = 8.5 V; V5-4 = V52-55 = 5 V; Tamb = 25 °C; fmod = 1 kHz; deviation = 22.5 kHz; Rg = 50 Ω; V37-35 = 10 mV; with de-emphasis = 50 µs; coil quality = 15; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Currents IDDA1 analog supply current 1 (pin 5) IDDA2 analog supply current 2 (pin 28) IDDA3 analog supply current 3 (pin 56) IDDD digital supply current (pin 52) I19 + I20 total FM mixer output current I22 + I23 total AM mixer output current FM mode 17 21 25 mA AM mode 14 17 21 mA FM mode 2.4 3.0 3.6 mA FM mode 19 24 28 mA AM mode 9.5 12 15 mA 8 10 12 mA 4.8 6.0 7.2 mA 10 12 14 mA − V AM mode FM-IF path; see Fig.4 V19-20 max(p-p) maximum output voltage (peak-to-peak value) I19; I20 mixer bias current mixer leakage current 12.0 14.0 in AM position 2.4 3.0 3.6 mA − − 2 µA I19IF2/V13-14IF1 conversion gain 1.65 1.9 2.2 mS Ri input resistance (pins 13 to 14) 5 7 − kΩ Ci input capacitance (pins 13 to 14) − 3 4.5 pF Ropt optimum generator resistance − 1.2 − kΩ Ro output resistance (pins 19 to 20) 15 20 − kΩ Co output capacitance (pins 19 to 4 and pins 20 to 4) − 12 14 pF IP3 third order intermodulation 114 124 − dBµV 1998 Mar 24 7 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6823T; TEA6825T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Oscillator fosc oscillator frequency − 61.5 − MHz ∆fosc oscillator frequency spread − − 250 Hz − K−1 ∆fosc/∆T temperature dependence of oscillator frequency R1 C0 10−6 − 30 × crystal motional resistance − − 70 Ω crystal shunt capacitance − − 5 pF V27-24 max(rms) maximum input voltage for 1 dB compression point (RMS value) 80 110 − mV V29-4 max(rms) maximum output voltage (RMS value) 220 320 − mV V29-4/V27-24 amplifier gain RL = 330 Ω; see Fig.5 9 12 15 dB ∆V29-4/V27-24 gain temperature dependence −25 °C < Tamb < +85 °C − 0.1 − dB/K Ri input resistance (pins 27 to 24) 300 330 360 Ω Ci input capacitance (pins 27 to 4) − − 5 pF Ro output resistance (pin 29) 300 330 360 Ω Co output capacitance (pins 29 to 4) − − 5 pF Vo 1-2(p-p) limiter output voltage (peak-to-peak value) 500 700 − mV V1-2/V37-35 limiter gain − 80 − dB Ci input capacitance (pins 37 to 4) − − 5 pF Ro output resistance (pins 1 to 2) − − 1.0 kΩ Co output capacitance (pins 1 to 2) 10 15 20 pF crystal type Philips 9922 521 00098 FM-IF2 amplifier FM-IF2 limiter 1998 Mar 24 see Fig.6 8 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6823T; TEA6825T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT FM demodulator V47-4(rms) MPX output voltage (RMS value) 160 200 240 mV V43-4(rms) MPX output voltage for RDS (RMS value) 160 200 240 mV V37-35(rms) start of limiting voltage (RMS value) αAF = −3 dB − 25 40 µV V37-35(rms) input voltage for signal plus noise-to-noise ratio (RMS value) − 30 45 µV − 70 100 µV − 100 1000 mV see Fig.7 for pin 47 (MPXOUT) and Fig.8 for pin 43 (RDS/AMSTOP) S+N -------------- = 26 dB N S+N -------------- = 46 dB N ∆V43DC residual DC-offset voltage ∆Ldemod = typical value 10 µV < V37-35 < 80 µV 80 µV < V37-35 < 800 mV − V43FM/V43AM AM suppression V47FM/V47AM AM suppression ∆f = 22.5 kHz; fmodAM = 1 kHz; mAM = 30%; V37-35 = 3 to 300 mV 50 10 30 mV 60 − dB V37-35 = 1 to 300 mV 50 60 − dB at 100 kHz detune from exact tuning 28 32 − dB output resistance (pin 47) − − 3 kΩ output resistance (pin 43) − − 1.5 kΩ AF bandwidth (pin 43) 200 − − kHz S+N -------------N signal plus noise-to-noise ratio 66 75 − dB THD total harmonic distortion pin 43; V37-35 = 300 µV to 800 mV − 0.1 0.35 % pin 47; V37-35 = 1 to 800 mV − 0.1 0.35 % ∆V43-44AFCdis demodulator frequency control /∆V43-44AFCactive voltage (AFC) efficiency Ro 1998 Mar 24 detuning ≤50 kHz; ∆f = 75 kHz; fmod = 1 kHz without de-emphasis; Ldemod = typical value 9 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6823T; TEA6825T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Unweighted voltage level V50-4 ∆V50-4/∆V37-35 ∆V50-4/VK unweighted voltage level slope of unweighted voltage level temperature dependence see Fig.9; V38 = 2.52 V V37-35 ≤ 2.5 µV 1.6 2.2 3.0 V V37-35 = 1.0 mV 2.7 3.4 4.7 V 100 µV (RMS) ≤ V37-35 < 300 mV temperature compensation off 0.75 0.9 1.05 V/20 dB temperature compensation on 0.6 0.75 0.9 V/20 dB temperature compensation off − 5.0 − mV/VK temperature compensation on − 2.0 − mV/VK V37-35 = 1 mV I50(max)source maximum output source current 0.3 − − mA I50(max)sink maximum output sink current −50 − − µA Ro50 output resistance − − 300 Ω −1.8 − +1.8 V ADJUSTMENT OF UNWEIGHTED VOLTAGE LEVEL AND Vmute/AML; note 1 ∆V50 adjusting range voltage V38-4 internal bias voltage − 2.6 − V ∆V50-4/∆V38-4 adjusting gain − −0.9 − − Ri38 input resistance − 80 − kΩ V37-35 = 10 mV (RMS) MUTING DEPENDENCE ON ADJUST OF LEVEL UNWEIGHTED VOLTAGE; note 2 V43/V47 start of mute V49/V21 = 0.625 1 3 7 dB ∆V 43 ⁄ V 47 -------------------------∆V 49 mute slope V43/V47 = −6 dB − 25 − dB/V Soft mute, time constant control, mono/stereo blend and high-cut control; see Fig.22 MUTE VOLTAGE; note 3 V49-4 mute voltage V38 = 2.52 V V37-35 < 2.5 µV 1.8 2.2 3.2 V V37-35 = 1.0 mV 2.7 3.4 4.7 V ∆V49-4/∆V37-35 slope of mute voltage 100 µV (RMS) ≤ V37-35 < 300 mV 0.75 0.9 1.05 V/20 dB ∆V49-4/VK temperature dependency V37-35 = 1 mV − − mV/VK 1998 Mar 24 10 5.0 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6823T; TEA6825T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT ATTACK AND DECAY TIME FOR MUTE VOLTAGE Ich charge current Idch discharge current ∆f muting activated by 60 kHz FM interference V43/V47 maximum mute depth by 60 kHz FM interference pin 3 connected to GND − 3.5 − µA pin 3 connected to pin 5 − 150 − µA pin 3 connected to GND − −4.0 − µA pin 3 connected to pin 5 − −170 − µA pin 3 connected to GND; − V43/V47 = 9 dB 40 − kHz pin 3 connected to pin 5; − V43/V47 = 6 dB 40 − kHz pin 3 connected to GND − 15 − dB pin 3 connected to pin 5 − 10 − dB V37-35 = 3 mV; pin 3 connected to GND − 0.6 − µA V37-35 = 3 mV; pin 3 connected to pin 5 − 23 − µA V37-35 = 3 mV; pin 3 connected to GND − −17 − µA V37-35 = 3 mV; pin 3 connected to pin 5 − −750 − µA pin 3 connected to GND − 45 − % pin 3 connected to pin 5 − 45 − % pin 3 connected to GND − 55 − % pin 3 connected to pin 5 − 55 − % pin 3 connected to GND − 50 − kHz pin 3 connected to pin 5 − 50 − kHz V49 < 3 V; V37-35 = 3 mV; fmod = 60 kHz TIME CONSTANT FOR MONO/STEREO BLEND VOLTAGE; note 4 Ich Idch m charge current discharge current mono/stereo blend activated by 20 kHz AM interference V16 < 2 V; V37-35 = 3 mV; RL16 > 50 MΩ; fmod = 20 kHz; data byte 2 bit 5 = 0 data byte 2 bit 5 = 1 ∆f 1998 Mar 24 mono/stereo blend activated by 60 kHz FM interference V16 < 2 V; V37-35 = 3 mV; RL16 > 50 MΩ; fmod = 60 kHz 11 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6823T; TEA6825T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT TIME CONSTANT FOR HIGH-CUT CONTROL VOLTAGE SDR; note 5 Ich Idch m ∆f charge current discharge current high-cut control activated by 20 kHz AM interference high-cut control activated by 60 kHz FM interference V37-35 = 3 mV; pin 3 connected to GND − 0.6 − µA V37-35 = 3 mV; pin 3 connected to pin 5 − 41 − µA V37-35 = 3 mV; pin 3 connected to GND − −0.7 − µA V37-35 = 3 mV; pin 3 connected to pin 5 − −44 − µA V15 < 2 V; V37-35 = 3 mV; RL15 > 50 MΩ; fmod = 20 kHz pin 3 connected to GND − 45 − % pin 3 connected to pin 5 − 45 − % V15 < 2 V; V37-35 = 3 mV; RL15 > 50 MΩ; fmod = 60 kHz pin 3 connected to GND − 50 − kHz pin 3 connected to pin 5 − 50 − kHz MULTI-PATH DETECTOR fMP multi-path detector band-pass centre frequency − 20 − kHz BMP band-pass bandwidth 7.0 − − kHz 4.5 5.1 5.7 V Reference voltage I21 = −1 mA V21-4 output voltage ∆V21-4 temperature dependence − 3.3 − mV/VK I21 output current − − 1 mA 12 15 − V AM-IF path; see Fig.14 and notes 6 and 7 V22-23 max(p-p) maximum output voltage (peak-to-peak value) I22, I23 mixer bias current mixer leakage current in FM position 5.0 6.0 7.0 mA − − 2 µA I22IF2/V27-24IF1 conversion transconductance 2.2 2.7 3.4 mS R27-24 input resistance 300 330 360 Ω 5 C27-24 input capacitance − 8 pF R22-23 output resistance 10.0 20.0 − kΩ C22-23 output capacitance − 5 10 pF IP3 third order intermodulation − 137 − dBµV 1998 Mar 24 12 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6823T; TEA6825T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT 190 240 290 mV − 50 75 µV − 200 400 µV AM DETECTOR; notes 8 and 9 V48-4(rms) AF output level (RMS value) RL48 > 500 kΩ; 100 µV ≤ V33-34 ≤ 300 mV V33-34(rms) sensitivity voltage (RMS value) S+N -------------- = 26 dB N S+N -------------- = 46 dB N AM-IF2 minimum input voltage (RMS value) THD ≤ 5%; m = 0.8 − − 100 µV AM-IF2 maximum input voltage (RMS value) THD ≤ 5%; m = 0.8 800 − − mV R33-34 IF2 input resistance 1.8 2.0 2.2 kΩ C24-23 IF2 input capacitance − 10 15 pF Ro48 output resistance 27 33 39 kΩ Co48 output capacitance − − 10 pF S+N -------------N signal plus noise-to-noise ratio 54 60 − dB THD total harmonic distortion − 1.5 3.0 % m = 0.8; 300 µV ≤ V33-34 ≤ 200 mV Notes to the characteristics 1. For typical adjusting range see Figs 10 and 13. 2. For typical curve see Fig.11. 3. The static mute voltage follows the unweighted voltage level as function of FM-IF2 voltage and level adjustment voltage V38-4. It additionally depends on multi-path level, noise (adjacent channel interferences) and the position of TSWITCH (pin 3). For typical curve for mute voltage dependence see Fig.12. 4. The mono/stereo blend voltage is generated as a function of FM-IF2 voltage, multi-path level, noise and position of TSWITCH. 5. The high-cut control voltage is generated as a function of FM-IF2 voltage, multi-path level, noise and position of TSWITCH. 6. fIF1 = 10.7 MHz; fIF2 = 450 kHz for AM mixer. 7. The AM oscillator signal is generated by division of the 61.5 MHz crystal oscillator. Two divider ratios programmable by the I2C-bus: divide by 6 (AM-IF1 = 10.7 MHz); divide by 2 (AM-IF1 = 30 MHz). 8. For typical AM level curve see Fig.15. 9. For AM detector; fAMIF2 = 450 kHz; fmod = 400 Hz; m = 30%. 1998 Mar 24 13 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T STEREO DECODER CHARACTERISTICS Input signal (∆f = 75 kHz) VMPX(p-p) = 1.7 V; fmod = 1 kHz; de-emphasis time constant t = 50 µs; nominal input resistor (pin 45) Ri = 168 kΩ; Tamb = 25 °C; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT V44-4(rms); V41-4(rms) AF output voltage (RMS value) 800 900 1000 mV V44-4; V41-4 DC output voltage 3.1 3.6 4.1 V I44(max); I41(max) maximum output current 150 − − µA V44-4/V41-4 difference of output voltage −1 − +1 dB Ro(44); Ro(41) output resistance − − 600 Ω RLmin minimum load resistor 12 − − kΩ αcs channel separation (adjusted) 40 − − dB S+N -------------N signal plus noise-to-noise ratio 74 80 − dB THD total harmonic distortion − 0.1 0.3 % 4 − − dB MPX input overdrive margin f = 20 Hz to 15 kHz THD = 1% Carrier and harmonic suppression at the output; note 1 α19 pilot signal f = 19 kHz − 50 − dB α38 subcarrier f = 38 kHz − 50 − dB f = 57 kHz − 50 − dB α57 α76 α2 intermodulation α3 f = 76 kHz − 60 − dB fmod = 10 kHz; fspur = 1 kHz − 60 − dB fmod = 13 kHz; fspur = 1 kHz − 58 − dB α57 traffic radio (ARI) f = 57 kHz − 70 − dB α67 subsidiary communications authorization f = 67 kHz 70 − − dB α114 adjacent channel frequency f = 114 kHz − 80 − dB f = 190 kHz − 70 − dB fr = 100 Hz; Vr = 100 mV (eff.) − 30 − dB − 24 30 mV α190 RR ripple rejection at output Mono/stereo control Vi(pil) pilot threshold voltage ∆Vi(pil) switch hysteresis Vi on/Vi off stereo on 8 20 − mV − 2 − dB V43/V47 = 6 dB − −110 − mV V43/V47 = 16 dB − −40 − mV mono on External mono/stereo control; note 2 V17 − 0.75V21 1998 Mar 24 control voltage channel separation see Fig.17 14 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio SYMBOL TEA6823T; TEA6825T PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Muting functions (mute via I2C-bus) ∆V44, ∆V41 αmute tune mute −50 − +50 mV radio mute (in combination with tune mute) −400 − +400 mV tune mute 60 − − dB radio mute (in combination with tune mute) 80 − − dB tde-emph = 50 µs 0 − − mV tde-emph = 80 µs −300 − − mV 50 − 80 µs 225 228 231 kHz 40 50 − µs DC offset voltage High-cut control; see Fig.18 V18 − 0.75V21 tde-emph control voltage note 3 control range of de-emphasis Voltage controlled oscillator; note 4 fosc oscillator frequency Noise blanker INTERFERENCE DETECTION FULLY INTERNAL FROM LEVEL DETECTOR tsup interference suppression time TRIGGER THRESHOLD CONTROL Ich charge current (into +4 V) − 45 − µA Idch discharge current (from +8.5 V) − −900 − µA TRIGGER SENSITIVITY MEASUREMENT WITH PULSED MODULATION OF FM-IF2; see Figs 19 and 20 V37-35(p) V51 ∆V51 trigger sensitivity for test signal 1 (peak value) V38 = 2.52 V; note 5 − − 0.5 mV V38 = 2.52 V; note 6 100 − − mV trigger sensitivity for test signal 2 (peak value) V38 = 2.52 V; note 6 5.0 − − mV V38 = 2.52 V; note 6 100 − − mV trigger threshold variation with frequency modulation of FM-IF2 and fmod = 15 kHz (pin 51) V37-35 = 100 mV; ∆f = 0 kHz − 6.4 − V V37-35 = 100 mV; ∆f = 40 kHz − 250 − mV I46 = 0 14 20 26 dB −0.32 −0.25 −0.16 dB/µA I46 < 0 4.0 4.3 4.7 V I46 > 0 5.3 5.7 6.1 V − 20 50 nA V37th/V37(3dB) shift of threshold for triggering from MPX signal ∆V37th/∆I46 shift of threshold as function of I46 V46 bias voltage (pin 46) Ioffset gate input offset current at pins 31 and 32 during suppression pulse duration 1998 Mar 24 15 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T Notes to the stereo decoder characteristics 1. The following equations give the values for the carrier and harmonic suppression at the output: V 0 ( signal ) (at 1 kHz) α 2 = ----------------------------------------------------------------- f = ( 2 × 10 kHz ) – 19 kHz V 0 ( spurious ) (at 1 kHz) s V 0 ( signal ) (at 1 kHz) α 3 = ----------------------------------------------------------------- f = ( 3 × 13 kHz ) – 38 kHz V 0 ( spurious ) (at 1 kHz) s V 0 ( signal ) (at 1 kHz) α 57 (ARI) = ---------------------------------------------------------------------------------------------V 0 ( spurious ) ( at 1 kHz ± 23 Hz ) V 0 ( signal ) (at 1 kHz) α 67 = ----------------------------------------------------------------- f = ( 2 × 38 kHz ) – 67 kHz V 0 ( spurious ) (at 9 kHz) s V 0 ( signal ) (at 1 kHz) α 114 = ----------------------------------------------------------------- f = 110 kHz – ( 3 × 38 kHz ) V 0 ( spurious ) (at 4 kHz) s V 0 ( signal ) (at 1 kHz) α 190 = ----------------------------------------------------------------- f = 186 kHz – ( 5 × 38 kHz ) V 0 ( spurious ) (at 4 kHz) s 2. The stereo decoder can be set to mono via the I2C-bus. Pilot presence indication via the I2C-bus. 3. The nominal de-emphasis value can be changed to 75 µs with C31; C32 = 10 nF. 4. The VCO is adjusted by means of a digital auxiliary PLL. 5. Noise blanker does not trigger. 6. Noise blanker triggers. 1998 Mar 24 16 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T CHARACTERISTICS FOR ANALOG-TO-DIGITAL CONVERTERS (ADCs) FOR LEVEL AND MULTI-PATH VOLTAGES SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT ADC for FM level information; note 1 ∆V37-35 analog-to-digital conversion step size 2 4 8 dB/step level range 43 56 69 dB − 16 − dB/V FM STOP ∆Vstop variation of stop level as function of V42-4 ADC for AM level information; note 2 ∆V33-34 analog-to-digital conversion step size 2 4 8 dB/step ∆V33-34 analog-to-digital conversion level range 43 56 69 dB variation of stop level as function of V43-4 − 16 − dB/V AM STOP ∆Vstop ADC for multi-path information; note 3 m multi-path conversion step 0 − − 5 % step 1 − 15 − % step 2 − 22 − % step 3 − 28 − % step 4 − 34 − % step 5 − 40 − % step 6 − 46 − % step 7 − 52 60 % Notes 1. The FM level information V50-3 is analog-to-digital converted with 4 bits. 2. The AM level information V49-4 is analog-to-digital converted with 4 bits. 3. The multi-path information V40-4 is analog-to-digital converted with 3 bits covering an IF2 amplitude modulation range m ≤ 0.6; fmod = 20 kHz. 1998 Mar 24 17 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T handbook, full pagewidth 1:1 GENERATOR R&S SMPC Rg = 50 Ω +8.5 V 19 13 TEA6823T TEA6825T fIF1 = 72.2 MHz 14 3.5 3.5 20 330 Ω 2 fIF2 = 10.7 MHz LOW NOISE AMPLIFIER AVD 704201 (S/N = 103 dB) SPECTRUM ANALYZER HP8568A MHA702 Fig.4 Test circuit FM mixer. handbook, full pagewidth GENERATOR R&S SMPC Rg = 50 Ω PASSIVE ATTENUATOR –6 dB RIN = 50 Ω ROUT = 330 Ω 10 nF 10 nF 27 TEA6823T 29 TEA6825T 24 330 Ω OSCILLOSCOPE PM3295A 4 MHA703 10 nF Fig.5 Test circuit IF-amplifier. handbook, full pagewidth 10 nF GENERATOR R&S SMPC Rg = 50 Ω 1 37 10 nF TEA6823T TEA6825T 50 Ω 35 OSCILLOSCOPE PM3295A 2 10 nF MHA704 100 nF Fig.6 Test circuit limiter gain. 1998 Mar 24 18 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T MHA247 20 handbook, full pagewidth V47-4 (dB) (1) 0 –20 –40 –60 (2) –80 10 –3 10 –2 10 –1 1 10 2 10 10 3 V37-35 (mV) (1) AF: fIF = 10.7 MHz; deviation = 22.5 kHz; fmod = 1 kHz. (2) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs. Fig.7 Signal and noise of muted MPX voltage. MHA248 20 handbook, full pagewidth V43-4 (dB) (1) 0 –20 –40 –60 (2) –80 10 –3 10 –2 10 –1 1 10 10 2 10 3 V37-35 (mV) (1) AF: fIF = 10.7 MHz; deviation = 22.5 kHz; fmod = 1 kHz. (2) Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs. Fig.8 Signal and noise of unmuted MPX voltage. 1998 Mar 24 19 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T MHA249 10 handbook, full pagewidth V50-4 (V) 8 6 (1) 4 (2) 2 0 10 –3 10 –2 10 –1 1 10 10 2 10 3 V37-35 (mV) (1) Temperature compensation off. (2) Temperature compensation on. Fig.9 Unweighted voltage level (typical curve). MHA250 10 handbook, full pagewidth V50-4 (V) 8 6 4 2 0 10 –3 10 –2 10 –1 1 10 10 2 10 3 V37-35 (mV) Fig.10 Adjustment range of unweighted voltage level. 1998 Mar 24 20 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T MHA251 20 handbook, full pagewidth V47-4 (dB) (1) 0 (4) (3) (5) –20 –40 –60 (4) (2) (3) –80 10 –3 (5) 10 –2 10 –1 1 10 10 2 10 3 V37-35 (mV) (1) (2) (3) (4) (5) AF: fIF = 10.7 MHz; deviation = 22.5 kHz; fmod = 1 kHz. Noise: unweighted B = 250 Hz to 15 kHz with de-emphasis 50 µs. Level adjustment set to α3dB at 0.6 mV. Level adjustment set to α3dB at 0.4 mV. Level adjustment set to α3dB at 1 mV. Fig.11 Muting dependence of unweighted voltage level (typical curve). 1998 Mar 24 21 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T MHA252 10 handbook, full pagewidth V49-4 (V) 8 6 4 2 0 10 –3 10 –2 10 –1 1 10 10 2 10 3 V37-35 (mV) Fig.12 Typical mute voltage as function of FM-IF2 voltage. MHA213 10 handbook, full pagewidth V49-4 (V) 8 6 4 2 0 10 –3 10 –2 10 –1 1 10 10 2 10 3 V37-35 (mV) Fig.13 Adjustment range mute voltage. 1998 Mar 24 22 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T +8.5 V handbook, full pagewidth GENERATOR R&S SMPC Rg = 50 Ω fIF1 = 10.7 MHz 270 Ω 10 nF 27 22 TEA6823T TEA6825T 24 7 7 23 20 2.2 kΩ 22 nF 10 nF LOW NOISE AMPLIFIER AVD 704201 (S/N = 103 dB) SPECTRUM ANALYZER HP8568A MHA705 Fig.14 Test circuit AM mixer. MHA214 20 handbook, full pagewidth V48-4 (dB) 8 (1) 0 THD (%) 6 (4) –20 4 –40 (2) 2 –60 (3) 0 –80 10 –3 10 –2 10 –1 1 10 10 2 10 3 V33-34 (mV) (1) (2) (3) (4) AF: f = 450 kHz; m = 30%; fmod = 400 Hz. Noise: unweighted B = 250 Hz to 15 kHz. THD m = 80%. AM level voltage. Fig.15 Signal, noise and distortion of AM AF output voltage and AM voltage level (typical curve). 1998 Mar 24 23 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T MHA215 4 handbook, full pagewidth VI,MPX(p-p) (V) 3 2 1 0 0 100 200 300 RIN(pin20) (kΩ) Fig.16 Adaption of MPX input to FM-demodulator output level by variation of the input resistor. MHA706 40 handbook, full pagewidth αcs (dB) 30 20 10 0 –300 –200 –100 0 control voltage V17 – 0.75V21 (mV) Fig.17 Channel separation as function of control voltage. 1998 Mar 24 24 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T MHA707 0 handbook, full pagewidth (dB) –1 –2 –3 –4 –300 –200 –100 0 control voltage V18 – 0.75V21 (mV) Fig.18 High-cut with fmod = 10 kHz as function of control voltage. 1998 Mar 24 25 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T handbook, full pagewidth V37-35 t = 5 µs trep = 1 ms MHA210 tr = tf = 0.5 µs A 0.6 A fIF = 10.7 MHz t Fig.19 Test signal 1 for interference detection from level detector. handbook, full pagewidth V37-35 t = 5 µs MHA211 trep = 1 ms tr = tf = 0.5 µs A 0.2 A fIF = 10.7 MHz t Fig.20 Test signal 2 for interference detection from level detector. 1998 Mar 24 26 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T I2C-BUS AND I2C-BUS CONTROLLED FUNCTIONS Table 1 I2C-bus specification DESCRIPTION The standard I2C-bus specification is expanded by the following definitions. Structure of the I2C-bus logic: slave transceiver with auto increment and expansion to switch a direct transfer of all transmissions to an output for the radio front-end IC (TEA6810T respectively TEA6811T). Subaddresses are not used. DATA TRANSFER FOR THE TEA6823T AND THE TEA6825T Data sequence: 1100001X Subaddress not used Hardware (pin) programmable address bits not available Default settings by power-on reset data byte 1 bits 4 to 7 are set to logic 0; all other bits are random Data to be received by the IC for data byte 1 BIT • Byte 1 0 • Byte 2. The data transfer may be in this order only. The transfer direction of the data bytes is defined by the LSB of the address. The data becomes valid at the output of the internal latches with the acknowledge of each byte. A STOP condition after any byte can shorten transmission times. When writing to the transceiver by using the STOP condition before completion of the whole transfer: • The remaining bytes will contain the old information 3 MSB reference frequency for synthesizer 4 tuning mute off Table 3 For a transmission to the front-end IC the address and the data format of the front-end IC has to be used. DATA TRANSFER TO THE IF IC Data transfer to the IF IC (TEA6823T or TEA6825T) is independent of the state of interface stage for the front-end IC. 27 bit 0 = 0 reference frequency for synthesizer 7 Remark: the pull-up resistors for the front-end interface (pins 6 and 7) should not be connected to the 5 V supply voltage of the front-end IC, otherwise a bus pull-down (pin 53) can occur during switching off the front-end supply when the interface stage is enabled. bit 0 = 1 switch for stereo 2 DATA TRANSFER TO AN OUTPUT OF THE FRONT-END IC RESULT switch for mono LSB reference frequency for synthesizer 6 A data bit in the transceiver of the TEA6823T or TEA6825T enables or disables a direct transfer of all transmissions to an interface stage for the front-end IC. DESCRIPTION 1 5 • If the transfer of a byte was not completed, this byte is lost and the previous information is available. SPECIFICATION Bus address of the TEA6823T and the TEA6825T Table 2 • Address 1998 Mar 24 Structure of the I2C-bus bit 4 = 1 tuning mute on bit 4 = 0 SDS/SDR hold off bit 5 = 1 SDS/SDR hold on bit 5 = 0 radio mute off bit 6 = 1 radio mute on bit 6 = 0 I2C-bus to front-end ENABLED bit 7 = 1 I2C-bus to front-end DISABLED bit 7 = 0 Reference frequency setting in data byte 1; see Table 1 BIT 3 BIT 2 BIT 1 FREQUENCY SETTING 0 0 0 3 kHz 0 0 1 5 kHz 0 1 0 10 kHz 0 1 1 15 kHz 1 0 0 25 kHz 1 0 1 50 kHz 1 1 0 not defined 1 1 1 not defined Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio Table 4 Data to be received by the IC for data byte 2 BIT 0 TEA6823T; TEA6825T DESCRIPTION RESULT Table 6 Data to be transmitted by the IC for data byte 2 BIT DESCRIPTION AM/FM; AM mode bit 0 = 0 0 LSB of the IF-counter AM/FM; FM mode bit 0 = 1 1 IF-counter 1 divider for AM mixer; divide by 2 bit 1 = 0 2 IF-counter divider for AM mixer; divide by 6 bit 1 = 1 3 IF-counter 2 measure time IF-count; 40 ms bit 2 = 0 4 IF-counter measure time IF-count; 4 ms bit 2 = 1 5 IF-counter SDR off bit 3 = 0 6 IF-counter SDR on bit 3 = 1 7 MSB of the IF-counter IF-prescaler division rate; divide by 200 bit 4 = 0 IF-prescaler division rate; divide by 25 bit 4 = 1 sensitivity unchanged bit 5 = 0 3 4 5 REFERENCED FREQUENCY GENERATION Table 7 multi-path sensitivity switch; less bit 5 = 1 sensitivity by an offset of ∆m = 10% 6 7 temperature compensation of unweighted voltage level; temperature coefficient as specified in Chapter “Characteristics” Division ratios DIVISION RATIO REFERENCE FREQUENCY (kHz)(1) 20500 3 12300 5 6150 10 4100 15 temperature compensation off bit 6 = 0 2460 25 temperature compensation on bit 6 = 1 1230 50 noise blanker deactivated by high modulation bit 7 = 0 noise blanker not deactivated bit 7 = 1 Table 5 Data to be transmitted by the IC for data byte 1; note 1 BIT DESCRIPTION 0 bit 1 level information 1 bit 2 level information 2 MSB (bit 3) level information 3 LSB multi-path information 4 multi-path information 5 MSB multi-path information 6 stereo pilot presence; bit 6 = 1 7 LSB (bit 0) level information Note 1. All specified frequencies are valid for a crystal oscillator frequency of 61.5 MHz. Note 1. The analog-to-digital conversion for multi-path and level will be done during a transmission of any address to the I2C-bus. 1998 Mar 24 28 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio Table 8 TEA6823T; TEA6825T Output signal of reference frequency divider SYMBOL PARAMETER MIN. TYP. MAX. UNIT V10-11(p-p) differential output voltage (peak-to-peak value) 0.3 0.4 0.5 V V10-4(p-p); V11-4(p-p) single-ended output voltage (peak-to-peak value) 0.15 0.2 0.3 V C10-4; C11-4 output capacitance − − 4 pF R10-52; R11-52 output resistance 800 1000 1200 Ω IF-COUNTER Table 9 IF-counter sensitivity SYMBOL PARAMETER CONDITIONS MIN. UNIT V33-34 IF-counter sensitivity AM mode; m = 0 200 µV V37-35 IF-counter sensitivity FM mode 200 µV AM counting windows are 4 or 40 ms. FM counting windows are 4 or 40 ms. AM counting resolution is 250 or 25 Hz. FM counting resolution is 5 kHz, 625 Hz, 50 kHz or 6.25 kHz. AM-IF-prescaler is divisible by 1. FM-IF-prescaler is divisible by 25 or 200. B0 B1 B2 B3 B4 B5 B6 B7 handbook, full pagewidth FM IF2 FM IF-PRESCALER ÷ 25 /÷ 200 8-BIT BINARY COUNTER prescaler setting MHA205 4 ms/40 ms counter window AM IF2 Fig.21 IF-counter structure. 1998 Mar 24 29 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T IF-counter read out IF-counter read out as a function of FM or AM position, counter window and prescaler setting FM/AM PRESCALER RATIO WINDOW (ms) fIF (kHz) READ OUT RESOLUTION (Hz/count) RANGE (kHz) MIN. MAX. FM 200 4 10700 D6H 50000 4300 17050 FM 200 40 10700 5CH 5000 10065 11335 FM 25 4 10700 B0H 6250 9906.25 11493.75 FM(1) 25 40 10700 E0H 625 10620.63 10779.38 AM 1 4 450 08H 250 418.25 481.75 AM(1) 1 40 450 50H 25 446.83 453.18 Note 1. In position FM with a prescaler ratio of 25, counter window of 40 ms and in position AM with 40 ms counter window ambiguous counting results within the IF filter bandwidth are obtained. The counting range is 127 counts above and 127 counts below the nominal IF of 10.7 MHz for FM and 450 kHz for AM. The IF-count windows are valid for a crystal oscillator frequency of 61.5 MHz. The FM/AM switching is carried out by bit 0 of byte 2 of the received data of the IC. The IF-counter operates continuously. The IF-counter and window-counter will be reset when the I2C-bus logic detects the address of the IC. This disables changes in the latches for the IF-count, while reading this value. If the transmission to the front-end IC is disabled after the synthesizer loop of the TEA6810T/TEA6811T front-end IC has locked for a new frequency, the IF-count will be available after the set measuring time. The IF-counter starts at 0. The IF-counter output are the 8 least significant bits of the counting result. 1998 Mar 24 30 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T INTERNAL CIRCUITRY Table 10 Equivalent pin circuits and pin voltages PIN DC VOLTAGE (V) SYMBOL AM EQUIVALENT CIRCUIT FM 1 QDET1 open-circuit 4.0 2 QDET2 open-circuit 4.0 1 39 2 MHA164 3 TSWITCH open-circuit 0.4 to 6.0 3 MHA165 4 AGND − − 5 VDDA1 5.0 5.0 6 HFBUS1 5.0 5.0 6 MHA166 7 HFBUS2 5.0 5.0 7 MHA167 1998 Mar 24 31 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio PIN TEA6823T; TEA6825T DC VOLTAGE (V) SYMBOL AM EQUIVALENT CIRCUIT FM 8 XTAL1 4.1 4.1 9 XTAL2 4.1 4.1 8 9 MHA168 10 fref(p) 4.9 4.9 11 fref(n) 4.9 4.9 10 11 MHA169 12 Iref 4.3 4.3 12 MHA170 13 FMIF1IN1 2.3 2.3 14 FMIF1IN2 2.3 2.3 19 14 20 13 MHA171 1998 Mar 24 32 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio PIN DC VOLTAGE (V) SYMBOL AM 15 TSDR TEA6823T; TEA6825T 0.7 to 5.5 EQUIVALENT CIRCUIT FM 0.7 to 5.5 15 MHA172 16 TSDS 0.7 to 5.5 0.7 to 5.5 16 MHA173 17 VSDS 3.0 to 5.5 3.0 to 5.5 17 MHA174 18 VSDR 3.0 to 5.5 3.0 to 5.5 18 MHA175 19 FMIF2OUT1 8.5 8.5 20 FMIF2OUT2 8.5 8.5 19 14 20 13 MHA171 1998 Mar 24 33 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio PIN DC VOLTAGE (V) SYMBOL AM 21 Vref TEA6823T; TEA6825T 5.1 EQUIVALENT CIRCUIT FM 5.1 21 MHA176 22 AMIF2OUT1 8.5 8.5 23 AMIF2OUT2 8.5 8.5 22 23 MHA177 24 FMAMDEC 3.0 2.5 24 MHA178 25 PHASEDET 2.8 to 7.2 2.8 to 7.2 25 MHA179 26 PILDET 0.4 0.4 to 7.0 26 MHA180 1998 Mar 24 34 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio PIN DC VOLTAGE (V) SYMBOL AM 27 FMAM10.7 TEA6823T; TEA6825T 3.0 EQUIVALENT CIRCUIT FM 2.5 27 MHA181 28 VDDA2 8.5 8.5 29 FMIFAMPOUT 6.0 6.0 29 MHA182 30 AFGND 3.6 3.6 30 MHA183 31 DEEMPHR 2.3 2.3 31 MHA184 32 DEEMPHL 2.3 2.3 32 MHA185 1998 Mar 24 35 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio PIN TEA6823T; TEA6825T DC VOLTAGE (V) SYMBOL AM EQUIVALENT CIRCUIT FM 33 AMIF2IN1 2.7 0.7 34 AMIF2IN2 2.7 0.7 33 34 MHA186 35 FMIN2 0.7 2.7 35 MHA187 36 DCFEED 2.7 2.7 37 FMIN1 0.7 2.7 36 37 MHA188 38 LEVELADJ 2.6 2.6 38 MHA189 1998 Mar 24 36 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio PIN DC VOLTAGE (V) SYMBOL AM 39 CAFC TEA6823T; TEA6825T 1.0 to 2.2 EQUIVALENT CIRCUIT FM 1.0 to 7.0 1 39 2 MHA164 40 MPBUF 0.7 to 6.0 0.7 to 6.0 40 MHA190 41 OUTLEFT 3.6 3.6 41 MGK694 42 FMSTOP 0 to 5.2 0 to 5.2 42 MHA192 43 RDS/AMSTOP 0 to 5.2 3.0 43 MHA193 44 OUTRIGHT 3.6 3.6 44 MHA194 1998 Mar 24 37 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio PIN DC VOLTAGE (V) SYMBOL AM 45 MPXIN TEA6823T; TEA6825T 2.8 EQUIVALENT CIRCUIT FM 2.8 45 MHA195 46 THRES 4.3/5.7 4.3/5.7 8.5 V 5V 46 47 MPXOUT 0 MGK695 3.0 47 MHA197 48 AMAFOUT 3.7 4.8 48 MHA198 49 Vmute/AML 1.0 to 5.5 1.0 to 5.5 49 MHA199 50 LEVELUNWEIG 1.0 to 7.0 1.0 to 7.0 50 MHA200 1998 Mar 24 38 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio PIN DC VOLTAGE (V) SYMBOL AM 51 IACCONTR TEA6823T; TEA6825T 0 EQUIVALENT CIRCUIT FM 6.0 51 MHA201 52 VDDD 5.0 5.0 53 SDA 5.0 5.0 53 MHA202 54 SCL 5.0 5.0 54 MHA203 55 DGND 0 0 56 VDDA3 8.5 8.5 1998 Mar 24 39 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T APPLICATION INFORMATION 1 kΩ VCC1 SFP450 7PSAG1946D = S 1.5 nF 68 Ω handbook, full pagewidth 220 nF 2.2 MΩ 10 pF 6.8 µH 100 nF 220 Ω 100 Ω 47 Ω VCC +8.5 V 220 µH 33 µH 470 Ω 22 pF 100 pF 47 mH 388BN-1211Z 100 470 Ω pF 1 µF 33 µF 29 330 nH 5.6 pF 1 µF 10 pF BB804 1 nF L1 E543SNAS -04011 47 kΩ 22 Ω 10 µF 1 µF 1 nF 47 kΩ 22 Ω 22 nF E543SNAS -02010 L7 BB135 10 pF 100 µF 1.8 pF 1.8 pF 2.7 pF 4 to 10 pF LIMITER AGC 47 pF 12 nF 10 kΩ 100 nF 3.6 kΩ 3.3 nF P392BE2049AJ = S 22 Ω TEA6810T TEA6811T 11 AM/FM TR2 12 100 nF 34 42 33 23 36 AM/FM SWITCH 35 27 24 FM-LIMITER AM-AMPLIFIER C D IFAMPLIFIER LEVEL AMPLIFIER :N5 E 19 20 10 nF Philips 9922 521 00098 or Daiwa AT - 49 61.5 MHz 6 PHASE DETECTOR 38 37 35 36 B :2/:6 29 TR3 A LEVEL DETECTOR AM 13 20 kHz F FM BUFFER 14 8 9 ADC MULTIPATH ADC LEVEL OSCILLATOR 1 BUFFER 38 37 56 pF BUFFER PROGRAMABLE DIVIDER 22 28 2×ZS369SCS2144AJ 56 pF 31 100 k Ω R39 TR5 100 kΩ R40 82 kΩ 100 nF :N2 AGC PIN 32 DIODE DRIVE 34 100 nF SFE 10.7 22 nF TR4 330 pF 10 100 nF REFERENCE FREQUENCY 7 IFCOUNTER 11 AM/FM OSCILLATOR BUS CONTROL 2 4 SDA 5 SCL 10 kΩ 10 kΩ 9 AM/FM 100 nF 8 2.2 kΩ 330 Ω AM 33 30 BF840 27 Ω LEVELADJ FMSTOP 100 nF 330 pF 15 FM 330 Ω SFE10.7 16 AM/FM 25 28 2.7 kΩ 390 Ω BAND- 21 GAP AM/FM AM RF 10 nF 100 nF SFE10.7 19 27 220 kΩ VCC +8.5 V 18 100 nF 26 BF861A 26 47 µF 270 pF 8.2 pF BAV 99 ISV 172 270 pF 10 nF 1 mH 22 3.3 µH 6.8 pF 68 µH Vref LOCK 39 CHARGE DETECTOR AM/FM PUMP 40 13 14 10 17 20 3 100 nF IN-LOCK 47 µF 3.3 µH I2C-BUS G 7 TEA6823T TEA6825T H 54 10 kΩ VCC +8.5 V MHA708 6 53 330 Ω 55 40 330 Ω 220 nF 10 kΩ VCCD +5 V VCCA +5 V SCL +8.5 V SDA Time constant control: slow or fast attack and decay time constants for soft mute, mono/stereo and high-cut control can be chosen by connecting pin 3 to GND or pin 21. Fig.22 ICE application diagram (continued in Fig.23). 1998 Mar 24 40 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio Vref handbook, full pagewidth TOKO P392BC-1977Z TEA6823T; TEA6825T RDS 10 nF AMSTOP 100 kΩ R51 L13 68 µF 3.3 nF 33 kΩ 2 A AFC B 82 kΩ 48 47 MPX BUFFER 25 45 LOW PASS FILTER MUTE SOFT PHASE DETECTOR VCO DIGITAL PHASE DETECTOR AM DELOG AMPLIFIER C 22 nF 27 kΩ 100 kΩ R41 43 39 220 nF 68 pF 220 nF 4.3 kΩ 1 220 kΩ 33 kΩ D PASS HIGH 60 kHz PILOT CANCELLER TEA6823T TEA6825T 820 kΩ 38 kHz 19 kHz 26 31 f ref PILOT DETECTOR LOGIC BLOCK E 100 nF 6.8 nF radio mute AVERAGE DETECTOR MPX- F PEAK DETECTOR + tuning mute 44 OUTRIGHT Vint1 DECODER 470 nF 30 AND + MATRIX 41 - AVERAGE DETECTOR OUTLEFT radio mute mono 32 HIGH PASS FILTER PEAK DETECTOR 6.8 nF PULSE FORMER 22 µH 56 100 nF INTERFERENCE CURRENT AM SWITCH G DETECTOR THRESHOLD CONTROL COMPENSATION 3 46 16 49 100 nF 220 nF 100 nF 15 17 NOISE DETECTOR 51 18 3.3 MΩ 1 MΩ 2.2 MΩ 1.2 MΩ 100 nF 33 kΩ VCC 8.5 V 41 470 nF 120 kΩ VCCA +5 V 5 21 52 33 µF 12 kΩ 100 nF 47 µF 10 Ω 100 nF MHA709 Vref VDDD +5 V Fig.23 ICE application diagram (continued from Fig.22). 1998 Mar 24 +8.5 V 47 µF + MODULATION DETECTOR RC level 4 12 TEMPERATURE 50 SUPPLY Vint2 H Vint1 Vint2 VCC +8.5 V 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 ... 3.6 kΩ 47 pF 100 nF 4.3 kΩ 40 1 47 µF L13 220 nF SCL BB135 330 Ω 100 nF 47 µF 100 nF 50 10 kΩ 2.7 pF 1 µF 10 nF 61.5 MHz 220 kΩ 10 pF 1 nF 330 nH 5.6 pF 100 nF TEA6810T L1 10 pF 33 µF 220 nF 10 pF 6.8 µH 100 nF 220 Ω TR4 330 pF P392BE2049AJ = S 100 nF 15 3.3 µH 15 100 nF 220 nF 40 100 pF Vref LEVELADJ SFE10.7 20 1 mH 100 nF Vref 330 Ω 35 1.5 nF 20 21 100 nF 100 nF TR5 470 Ω 33 µH 68 µH 22 nF 2.7 kΩ 10 nF 6.8 nF 220 nF 27 kΩ 330 Ω BF840 270 pF 100 nF 1 kΩ SFP450 6.8 nF 100 nF 33 µF 22 nF SFE10.7 390 Ω 470 nF 820 kΩ 27 Ω 30 100 nF 28 29 SFE10.7 Fig.24 AM/FM car radio receiver with TEA6810T and TEA6825T or TEA6811T and TEA6823T. MHA710 Preliminary specification 25 270 pF TEA6823T; TEA6825T 470 Ω R40 100 kΩ 82 kΩ 12 kΩ 8.2 pF OUTLEFT 33 kΩ 68 µF 7PSAG-1946D = S 2.2 MΩ 33 kΩ AMSTOP 100 kΩ R51 FMSTOP R39 1.2 MΩ 22 pF BAV 99 33 kΩ RDSMPX 100 kΩ 330 pF 25 47 mH 388BN-1211Z 100 nF 3.3 MΩ 1 MΩ BF861A 100 Ω OUTRIGHT TEA6823T TEA6825T 2.2 MΩ 10 nF R41 100 kΩ +8.5 V 120 kΩ 56 pF 47 µF 100 nF 1 µF RC SEP 68 pF 82 kΩ 45 TR3 TR2 30 TEA6811T handbook, full pagewidth 42 47 Ω 220 µH 470 nF S369SCS-2144AJ (2x) 10 56 pF 1 nF 220 nF Fref 1 µF 22 kΩ BB 804 10 pF E543SNAS -4011 47 kΩ 220 kΩ 3.3 nF 10 6.8 pF LEVEL 100 nF 35 100 pF VCCD +5 V SCL 5 4 to 10 pF 10 kΩ 100 nF SDA 10 kΩ E543SNAS-02010 L7 SDA 10 kΩ 330 Ω 5 1.8 pF 1.8 pF ISV172 47 kΩ +8.5 V VCC +8.5 V 56 1 22 nF 2.2 kΩ 22 µH P392BC-1977Z 22 Ω 3.3 nF 10 kΩ 100 nF 12 nF VCCA +5 V Philips Semiconductors 100 µF VCC +8.5 V In Car Entertainment (ICE) car radio 1998 Mar 24 VCCD +5 V lock detector Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T PACKAGE OUTLINES VSO56: plastic very small outline package; 56 leads SOT190-1 D E A X c y HE v M A Z 56 29 Q A2 A (A 3) A1 pin 1 index θ Lp L 1 detail X 28 w M bp e 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) mm 3.3 0.3 0.1 3.0 2.8 0.25 0.42 0.30 0.22 0.14 21.65 21.35 11.1 11.0 0.75 15.8 15.2 2.25 1.6 1.4 1.45 1.30 0.2 0.1 0.1 0.90 0.55 0.13 0.012 0.004 0.12 0.11 0.01 0.017 0.0087 0.85 0.012 0.0055 0.84 0.44 0.62 0.0295 0.43 0.60 0.089 0.063 0.055 inches 0.057 0.035 0.008 0.004 0.004 0.051 0.022 θ Note 1. Plastic or metal protrusions of 0.3 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION REFERENCES IEC JEDEC EIAJ ISSUE DATE 96-04-02 97-08-11 SOT190-1 1998 Mar 24 EUROPEAN PROJECTION 43 o 7 0o Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T VSO56: plastic very small outline package; 56 leads; face down SOT190-2 HE y v M A X c D A E Z 56 29 L Lp θ A1 (A 3) A2 A Q pin 1 index detail X 1 28 w M bp e 0 5 10 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (2) e HE L Lp Q v w y Z (1) mm 3.3 0.3 0.1 3.0 2.8 0.25 0.42 0.30 0.22 0.14 21.65 21.35 11.1 11.0 0.75 15.8 15.2 2.25 1.6 1.4 1.45 1.30 0.2 0.1 0.1 0.90 0.55 0.13 0.012 0.004 0.12 0.11 0.01 0.017 0.0087 0.85 0.012 0.0055 0.84 inches 0.44 0.62 0.0295 0.43 0.60 0.063 0.089 0.055 0.057 0.035 0.008 0.004 0.004 0.051 0.022 θ Note 1. Plastic or metal protrusions of 0.3 mm maximum per side are not included. 2. Plastic interlead protrusions of 0.25 mm maximum per side are not included. OUTLINE VERSION REFERENCES IEC JEDEC EIAJ ISSUE DATE 96-04-02 97-08-11 SOT190-2 1998 Mar 24 EUROPEAN PROJECTION 44 o 7 0o Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T SOLDERING Wave soldering Introduction Wave soldering techniques can be used for all VSO packages if the following conditions are observed: 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. • 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. 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” (order code 9398 652 90011). 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. Reflow soldering Reflow soldering techniques are suitable for all VSO packages. 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. 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. A mildly-activated flux will eliminate the need for removal of corrosive residues in most applications. 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. 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. Preheating is necessary to dry the paste and evaporate the binding agent. Preheating duration: 45 minutes at 45 °C. 1998 Mar 24 45 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T 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 PURCHASE OF PHILIPS I2C COMPONENTS Purchase of Philips I2C components conveys a license under the Philips’ I2C patent to use the components in the I2C system provided the system conforms to the I2C specification defined by Philips. This specification can be ordered using the code 9398 393 40011. 1998 Mar 24 46 Philips Semiconductors Preliminary specification In Car Entertainment (ICE) car radio TEA6823T; TEA6825T NOTES 1998 Mar 24 47 Philips Semiconductors – a worldwide company Argentina: see South America Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113, Tel. +61 2 9805 4455, Fax. +61 2 9805 4466 Austria: Computerstr. 6, A-1101 WIEN, P.O. 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No. 5, 80640 GÜLTEPE/ISTANBUL, Tel. +90 212 279 2770, Fax. +90 212 282 6707 Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7, 252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461 United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes, MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421 United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409, Tel. +1 800 234 7381 Uruguay: see South America Vietnam: see Singapore Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD, Tel. +381 11 625 344, Fax.+381 11 635 777 For all other countries apply to: Philips Semiconductors, International Marketing & Sales Communications, Building BE-p, P.O. Box 218, 5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825 Internet: http://www.semiconductors.philips.com © Philips Electronics N.V. 1998 SCA57 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 545102/1200/01/pp48 Date of release: 1998 Mar 24 Document order number: 9397 750 02316