TDA7515

TDA7515 RF front-end for AM/FM-DSP car radios with IF sampling Features ■ RF AGC generation by RF and IF detection ■ I/Q Mixer for FM IF 10.7MHz with image rejection and programmable IF tank adjust for FM and AM ■ Preamplifier and mixer for IF 10.7MHz AM upconversion ■ VCO and programmable divider for “world receiver” ■ Programmable controlled IF-gain stage ■ High performance fast PLL for RDS-system ■ Electronic alignment for the preselection stages ■ All functions bus-controlled u d o r P e LQFP44 t e l o It contains mixer and IF amplifiers for AM and FM, VCO and PLL synthesizer on a single chip. ) (s Description ) s ( ct s b O Use of BICMOS technology allows the implementation of several tuning functions and a minimum of external components. t c u The front-end is a high performance tuner circuit for AM/FM - DSP car radios with 10.7MHz - IF sampling. P e d o r Order codes t e l o s b O Part numbers Package Packing TDA7515 LQFP44 (10x 10x 1.4mm) Tray TDA7515TR LQFP44 (10x 10x 1.4mm) Tape and reel November 2006 Rev 2 1/7 www.st.com 7 Block diagram and pin description 1 TDA7515 Block diagram and pin description Figure 1. Block diagram optional 2 AGC 2 2 ADJ IF 10.7MHz 2 FM u d o Bus Interface AGC TV1 TV2 2 AM e t e ol PM 1/4 1/8 DIV 1/6 1/10 ) (s 00AT0037 t c u :1/:2/:3 VCO PLL LPOUT LPAM Pr Supply REFDIV LPFM LPHC s b O Fref 18/100kHz t e l o SDA Fref- IFAMAGCTC Fref+ Vref DAGC IFGND IFOUT2 IFOUT1 P e IFAGCTC d o r VCCIF Pin connection 33 32 31 30 29 28 27 26 25 24 23 bs VCC 34 22 SCL IFINAM 35 21 GNDPLL 17 LPOUT MIXOUT2 40 16 LPAM/SW AMAGCTC 41 15 VPLL FMIFAGCin 42 14 VCOE AMIN2 43 13 VCOB AMIN1 44 12 GNDVCO 00AT0036 1 2 3 4 5 6 7 8 9 10 11 VCCVCO O TV2 39 TV1 LPREF MIXOUT1 FMAGCTC 18 FMIN2 38 RFGND LPFM IFIN2 FMIN1 LPHC 19 FMPINDR 20 37 AMPINDR 36 AMRFAGCin GND IFIN1 AMRFAGCout Figure 2. 2/7 ) s ( ct AGC Q I PM DAGC 2 TDA7515 Block diagram and pin description Table 1. Pin description Pin No. Pin Name 1 AMRFAGCin 2 AMRFAGCout AM AGC output for RF AGC AMPINDR 4 FMPINDR 5 FMIN1 FM mixer input 1 6 RFGND RF ground 7 FMIN2 8 FMAGCTC O AM AGC pin-diode driver FM AGC pin-diode driver FM mixer input 2 FM AGC time constant 9 TV1 Tuning voltage 1 output 10 TV2 Tuning voltage 2 output 11 VCCVCO Supply voltage VCO 12 GNDVCO VCO ground 13 VCOB Base VCO 14 VCOE Emitter VCO 15 VPLL PLL supply voltage ) s ( ct u d o r P e 16 LPAM/SW 17 LPOUT OPAMP output to PLL loop filter 18 LPREF Voltage reference for PLL 19 LPFM OP AMP input to PLL loop filter FM 20 LPHC High current PLL loop filter 21 GNDPLL 22 SCL Bus connection (IIC clock) 23 SDA Bus connection (IIC data) 24 IFAMAGCTC 25 Fref- 27 o s b AM AGC input for RF detection 3 P e 28 OP AMP input to PLL loop filter AM / switch output (optional) t e l o ) (s PLL ground s b O t c u d o r 26 let Function Time constant for AM IF AGC Reference frequency input Fref+ Reference frequency input Vref Reference voltage 5V DAGC Digital keying AGC input 29 IFGND IF ground 30 IFOUT2 IF amplifier output 31 IFOUT1 IF amplifier output 32 VCCIF Supply voltage for IF output 33 IFAGCTC 34 VCC 35 IFINAM IF AGC time constant Supply voltage IF input for narrowband AM 36 GND Ground 37 IFIN1 IF Input - signal 38 IFIN2 IF Input - blocked 39 MIXOUT1 Mixer output 40 MIXOUT2 Mixer output 41 AMAGCTC AM AGC time constant 42 FMIFAGCin 43 AMIN2 AM RF input 44 AMIN1 AM RF input IF input for FM AGC 3/7 Electrical specifications TDA7515 2 Electrical specifications 2.1 Thermal data Table 2. Thermal data Values Symbol Parameter Unit Min. Rth(j-a) 2.2 Thermal resistance 85 °C/W Ambient temperature -40 85 °C Tstg Storage temperature -55 150 °C Table 3. Supply voltage for IF-interface VPLL PLL supply voltage VCCVCO VCO supply voltage VCC t(s c u d o r P o s b O ) Supply voltage VMIXOUT1/2 Open collector voltage e t e ol e t e l Parameter VCCIF ) s ( t c u d Absolute maximum ratings Symbol 4/7 Max. Tamb Absolute maximum ratings s b O Typ. o r P Value Unit 12 V 12 V 12 V 12 V 12 V TDA7515 3 Package information Package information In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com. Figure 3. LQFP44 (10x10) Mechanical data & package dimensions mm MIN. TYP. A MAX. MIN. TYP. 1.60 A1 0.05 A2 1.35 0.15 0.002 1.40 1.45 0.053 0.055 0.37 0.45 0.012 0.015 0.20 0.004 B 0.30 0.09 D 11.80 12.00 12.20 0.464 D1 9.80 10.00 10.20 0.386 8.00 0.480 0.394 0.401 0.315 12.20 0.464 0.472 E1 9.80 10.00 10.20 0.386 0.394 8.00 L d o r k ccc ) (s 0.315 0.60 1.00 t e l o s b O 0.480 0.401 0.031 t c u 0.45 L1 r P e 0.018 0.472 12.00 0.80 0.057 0.008 11.80 e u d o 0.006 E E3 OUTLINE AND MECHANICAL DATA MAX. 0.063 C D3 ) s ( ct inch DIM. 0.75 0.018 0.024 0.030 0.039 LQFP44 (10 x 10 x 1.4mm) 0˚(min.), 3.5˚(typ.), 7˚(max.) 0.10 0.0039 P e t e l o s b O 0076922 E 5/7 Revision history 4 TDA7515 Revision history Table 4. Document revision history Date Revision Changes 24-Jan-2006 1 Initial release. 24-Nov-2006 2 Package changed, layout changes, text modification. ) s ( ct u d o r P e t e l o ) (s t c u d o r P e t e l o s b O 6/7 s b O TDA7515 ) s ( ct Please Read Carefully: u d o Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. r P e All ST products are sold pursuant to ST’s terms and conditions of sale. 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