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www.DataSheet4U.com INTEGRATED CIRCUITS DATA SHEET TEF6890H Car radio integrated signal processor Product specification 2003 Oct 21 Philips Semiconductors Product specification Car radio integrated signal processor CONTENTS 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 2 3 4 5 6 7 7.1 7.2 7.3 7.4 7.4.1 7.4.2 7.5 7.6 7.6.1 7.6.2 7.6.3 7.6.4 7.6.5 7.6.6 7.6.7 7.7 8 9 10 11 FEATURES General I2C-bus Stereo decoder Noise blanking Weak signal processing RDS demodulator Tone/volume part GENERAL DESCRIPTION ORDERING INFORMATION QUICK REFERENCE DATA BLOCK DIAGRAM PINNING FUNCTIONAL DESCRIPTION Stereo decoder FM and AM noise blanker High cut control and de-emphasis Noise detector FM noise detector AM noise detector Multipath/weak signal processing Tone/volume control Input selector Loudness Volume/balance Treble Bass Fader/mute Beep generator and NAV input with output mixer RDS demodulator LIMITING VALUES THERMAL CHARACTERISTICS CHARACTERISTICS I2C-BUS PROTOCOL 11.1 11.1.1 11.1.2 11.1.3 11.2 11.2.1 11.2.2 11.2.3 11.2.4 11.2.5 11.2.6 11.2.7 11.2.8 11.2.9 11.2.10 11.2.11 11.2.12 11.2.13 11.2.14 11.2.15 11.2.16 11.2.17 11.2.18 12 13 14 14.1 14.2 14.3 14.4 14.5 15 16 17 18 TEF6890H Read mode Data byte 1; STATUS Data byte 2; LEVEL Data byte 3; USN and WAM Write mode Subaddress 2H; RDSCLK Subaddress 4H; CONTROL Subaddress 5H; CSALIGN Subaddress 6H; MULTIPATH Subaddress 7H; SNC Subaddress 8H; HIGHCUT Subaddress 9H; SOFTMUTE Subaddress AH; RADIO Subaddress BH; INPUT and ASI Subaddress CH; LOUDNESS Subaddress DH; VOLUME Subaddress EH; TREBLE Subaddress FH; BASS Subaddress 10H; FADER Subaddress 11H; BALANCE Subaddress 12H; MIX Subaddress 13H; BEEP Subaddress 1FH; AUTOGATE TEST AND APPLICATION INFORMATION PACKAGE OUTLINE SOLDERING Introduction to soldering surface mount packages Reflow soldering Wave soldering Manual soldering Suitability of surface mount IC packages for wave and reflow soldering methods DATA SHEET STATUS DEFINITIONS DISCLAIMERS PURCHASE OF PHILIPS I2C COMPONENTS 2003 Oct 21 2 Philips Semiconductors Product specification Car radio integrated signal processor 1 1.1 FEATURES General TEF6890H • High integration • No external components except coupling capacitors for signal inputs and outputs • QFP44 package with small Printed-Circuit Board (PCB) footprint. 1.2 I2C-bus 1.5 Weak signal processing • Fast mode 400 kHz I2C-bus, interfaces to logic levels ranging from 2.5 to 5 V • Gated I2C-bus loop through to tuner IC – Eases PCB layout (crosstalk) – Allows mix of 400 kHz and 100 kHz busses – Low bus load reduces crosstalk – Buffered I/O circuit – Supply voltage shift between both buses allowed. • Shortgate function offers easy control with automatic gating of a single transmission; suited for TEA684x • Autogate function offers transparent microcontroller control with automatic on/off gating (programmable address). 1.3 Stereo decoder • FM weak signal processing with detectors for RF level, Ultrasonic Noise (USN) and Wideband AM (WAM) information • AM weak signal processing with detectors for level information • AM processing with soft mute and High Cut Control (HCC) • FM processing with soft mute, stereo blend and HCC • Setting of the sensitivity of the detectors and start and slope of the control functions via I2C-bus • Weather band de-emphasis • Level, USN and WAM read-out via I2C-bus (signal quality detectors) • Full support of tuner AF update functions with TEA684x tuner ICs, FM audio processing holds the detectors for the FM weak signal processing in their present state during RDS updating. 1.6 RDS demodulator • FM stereo decoder with high immunity to birdy noise and excellent pilot cancellation • Integrated IF roll-off correction controlled via I2C-bus • De-emphasis selectable between 75 and 50 µs via I2C-bus. 1.4 Noise blanking • RDS/RBDS demodulator uses TEA684x reference frequency, no external crystal necessary. • New fully integrated AM noise blanker with excellent performance • Fully integrated FM noise blanker with superior performance. 2003 Oct 21 3 Philips Semiconductors Product specification Car radio integrated signal processor 1.7 Tone/volume part 2 GENERAL DESCRIPTION TEF6890H • Input selector for four inputs: – Two external stereo inputs (CD and TAPE) – One mono input (PHONE) – One internal stereo input (AM or FM). • Integrated tone control and audio filters without external components • Volume control from +20 to −79 dB in 1 dB steps; programmable 20 dB loudness control included • Programmable loudness control with bass boost or as bass and treble boost • Treble control from −14 to +14 dB in 2 dB steps • Bass control from −14 to +14 dB in 2 dB steps with selectable characteristics • Good undistorted performance for any step size, including mute • Audio Step Interpolation (ASI) available for the following audio controls: – Mute – Loudness – Volume/balance – Bass – Fader. • ASI also realizes Alternative Frequency (AF) mute for inaudible RDS update • Integrated beep generator • Navigation (NAV) input • Output mixer circuit for beep or NAV signal at output stages. 3 ORDERING INFORMATION TYPE NUMBER TEF6890H The TEF6890H is a monolithic BiMOS integrated circuit comprising the stereo decoder function, weak signal processing and ignition noise blanking facility for AM and FM combined with input selector and tone/volume control for AM and FM car radio applications. The RDS/RBDS demodulator function is included. The device operates with a supply voltage of 8 to 9 V. PACKAGE NAME QFP44 DESCRIPTION plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 × 10 × 1.75 mm VERSION SOT307-2 2003 Oct 21 4 Philips Semiconductors Product specification Car radio integrated signal processor 4 QUICK REFERENCE DATA SYMBOL VCC ICC PARAMETER supply voltage supply current normal mode standby RDS; audio on standby audio; RDS on standby Stereo decoder path αcs S/N THD channel separation signal-to-noise ratio total harmonic distortion fFMMPX = 1 kHz fFMMPX = 20 Hz to 15 kHz FM mode; fFMMPX = 1 kHz THD = 0.1%; Gvol = −6 dB 40 75 − 2 CONDITIONS TEF6890H MIN. TYP. MAX. UNIT 8.0 − − − − 8.5 28 24 19 15 − − − − 9.0 − − − − − − 0.3 − V mA mA mA mA dB dB % Tone/volume control Vi(max)(rms) maximum input voltage level at pins TAPEL, TAPER, CDL, CDR, CDCM, PHONE and PHCM (RMS value) V Vi(NAV)(max)(rms) maximum input voltage level at pin NAV (RMS value) THD total harmonic distortion THD = 1%; fNAV = 1 kHz TAPE and CD inputs; faudio = 20 Hz to 20 kHz; Vi = 1 V (RMS) maximum setting minimum setting 0.3 − − − V % 0.01 0.1 Gvol Gstep(vol) Gloudness volume/balance gain control step resolution gain (volume) loudness gain control − − − 20 −59 1 0 −20 14 −14 2 14 −14 2 − − − − − − − − − − − dB dB dB dB dB dB dB dB dB dB dB floudness(low) = 50 Hz; high boost on maximum setting; 1 kHz tone minimum setting; 1 kHz tone − − − − − maximum setting; symmetrical boost − minimum setting; asymmetrical cut − − Gtreble Gstep(treble) Gbass Gstep(bass) treble gain control step resolution gain (treble) bass gain control step resolution gain (bass) maximum setting minimum setting 2003 Oct 21 5 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 ... 2003 Oct 21 6 5 Philips Semiconductors Car radio integrated signal processor BLOCK DIAGRAM input select 22 20 21 24 23 25 26 + + − + INPUT + SELECT + − + + 0 to −20 dB low f: 50/100 Hz high boost vol: +20 to −59 dB bal: L/R, 0 to −79 dB mute +14 to −14 dB f: 8 to 15 kHz +14 to −14 dB f: 60 to 120 Hz shelve/band-pass front/rear 0 to −59 dB mute: LF, RF, LR, RR mix: LF, RF, LR, RR 27 CDL CDR CDCM TAPEL TAPER PHONE PHCM LOUDNESS asi VOLUME/ BALANCE/ MUTE asi amfmsoftmute afumute TREBLE BASS asi FRONT/ REAR FADER asi 28 MUTE asi level/off pitch BEEP on/off 32 MIX 29 30 LFOUT RFOUT LROUT RROUT AUDIO STEP INTERPOLATION (asi) NAV asi time asi active roll-off correction MPX FMMPX 5 PILOT CANCEL 19 kHz stereo adjust fm/am f: 1.5 to 15 kHz/wide 50/75 µs STEREO DECODER 38 kHz NOISE BLANKER HIGH CUT DE-EMPHASIS level fref AM 7 PILOT/ REFERENCE PLL fmsnc stereo 57 kHz Iref amnb fmnb amfmhcc standby SUPPLY Vref 16 17 18 41 44 NOISE DETECT nb sensitivity NOISE DETECT PULSE TIMER amnb addr I2C-BUS INTERFACE read fmnb write autogate VCC AGND CREF DGND ADDR USN 6 MPXRDS TEF6890H 43 42 PULSE TIMER SCL SDA level 1 LEVEL DETECT SCLG SDAG 3 4 sclg sdag WAM DETECT wam wam sensitivity usn usn sensitivity detection timings and control snc start, slope hcc start, slope sm start, slope sclg MULTIPATH/ WEAK SIGNAL DETECTION AND LOGIC SNC HCC SM RDS fmsnc amfmhcc amfmsoftmute 57 kHz RDS DEMODULATOR sdag reset/hold AFSAMP AFHOLD FREF 11 fref 8, 12, 13, 14, 15, 19, 31, 33, 34, 35, 36, 40 i.c. 10 9 hold afus handbook, full pagewidth 39 38 37 2 RDCL RDDA Product specification afumute TEF6890H RDQ RDSGND MHC328 Fig.1 Block diagram. Philips Semiconductors Product specification Car radio integrated signal processor 6 PINNING SYMBOL LEVEL RDSGND SCLG SDAG FMMPX MPXRDS AM i.c. AFHOLD AFSAMP FREF i.c. i.c. i.c. i.c. VCC AGND CREF i.c. CDR CDCM CDL TAPER TAPEL PHONE PHCM LFOUT RFOUT LROUT RROUT i.c. NAV i.c. i.c. i.c. i.c. RDQ RDDA RDCL i.c. 2003 Oct 21 PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 level detector input RDS ground gated I2C-bus clock port gated I2C-bus data port FM-MPX i

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