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| TDA7515 RF-FRONTEND FOR AM/FM-DSP-CARRADIOS WITH IF SAMPLING PRODUCT PREVIEW s s s s s 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 TQFP44 ORDERING NUMBER: TDA7515 Additional features: s s s High performance fast PLL for RDS-system Electronic alignment for the preselection stages All functions bus-controlled AM/FM - DSP carradios with 10.7MHz - IF sampling. It contains mixer and IF amplifiers for AM and FM, VCO and PLL synthesizer on a single chip. Use of BICMOS technology allows the implementation of several tuning functions and a minimum of external components. DESCRIPTION The frontend is a high performance tuner circuit for 1 BLOCK DIAGRAM optional 2 2 AGC ADJ 2 IF 10.7MHz 2 FM PM AGC DAGC I Q 2 AGC TV1 2 AM PM Bus Interface TV2 Supply 1/4 1/8 DIV 1/6 1/10 :1/:2/:3 VCO LPOUT PLL REFDIV LPAM LPFM LPHC Fref 18/100kHz 00AT0037 July 2002 This is preliminary information on a new product now in development. Details are subject to change without notice. 1/5 TDA7515 2 PIN CONNECTION IFAMAGCTC IFAGCTC IFOUT1 IFOUT2 IFGND VCCIF DAGC Fref+ Fref- 33 32 31 30 29 28 27 26 25 24 23 VCC IFINAM GND IFIN1 IFIN2 MIXOUT1 MIXOUT2 AMAGCTC FMIFAGCin AMIN2 AMIN1 SDA Vref 34 35 36 37 38 39 40 41 42 43 44 1 2 3 4 5 6 7 22 21 20 19 18 17 16 SCL GNDPLL LPHC LPFM LPREF LPOUT LPAM/SW VPLL VCOE VCOB GNDVCO 15 14 13 12 8 9 10 11 FMIN1 FMIN2 TV1 RFGND TV2 AMPINDR FMPINDR AMRFAGCin 00AT0036 3 PIN DESCRIPTION Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Pin Name AMRFAGCin AMRFAGCout AMPINDR FMPINDR FMIN1 RFGND FMIN2 FMAGCTC TV1 TV2 VCCVCO GNDVCO VCOB VCOE VPLL LPAM/SW LPOUT LPREF LPFM LPHC AM AGC Input for RF detection AM AGC output for RF AGC AM AGC PIN-diode driver FM AGC Pindiode driver FM Mixer Input 1 RF Ground FM Mixer Input 2 FM AGC time constant Tuning voltage 1 output Tuning voltage 2 output Supply Voltage VCO VCO Ground Base VCO Emitter VCO PLL Supply Voltage OP AMP Input to PLL Loop Filter AM / switch output (optional) OPAMP output to PLL Loop Filter Voltage Reference for PLL OP AMP Input to PLL Loop Filter FM High Current PLL Loop Filter Function 2/5 AMRFAGCout FMAGCTC VCCVCO TDA7515 3 PIN DESCRIPTION (continued) Pin No. 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Pin Name GNDPLL SCL SDA IFAMAGCTC FrefFref+ Vref DAGC IFGND IFOUT2 IFOUT1 VCCIF IFAGCTC VCC IFINAM GND IFIN1 IFIN2 MIXOUT1 MIXOUT2 AMAGCTC FMIFAGCin AMIN2 AMIN1 PLL Ground Bus connection (IIC clock) Bus connection (IIC data) Time constant for AM IF AGC Reference frequency input Reference frequency input Reference voltage 5V Digital keying AGC input IF Ground IF amplifier output IF amplifier output Supply voltage for IF output IF AGC time constant Supply voltage IF input for narrowband AM Ground IF Input - signal IF Input - blocked Mixer Output Mixer Output AM AGC time constant IF input for FM AGC AM RF Input AM RF Input Function 4 THERMAL DATA Symbol Rth(j-a) Tamb Tstg Thermal resistance Ambient temperature Storage temperature -40 -55 Parameter Values Min. Typ. Max. 85 85 150 Unit C/W C C 5 ABSOLUTE MAXIMUM RATINGS Symbol VCCIF VPLL VCCVCO VCC Parameter Supply voltage for IF-interface PLL supply voltage VCO supply voltage Supply voltage Open collector voltage Value 12 12 12 12 12 Unit V V V V V VMIXOUT1/2 3/5 TDA7515 DIM. MIN. A A1 A2 B C D D1 D3 e E E1 E3 L L1 K 0.45 0.05 1.35 0.30 0.09 mm TYP. MAX. 1.60 0.15 1.40 0.37 1.45 0.45 0.20 12.00 10.00 8.00 0.80 12.00 10.00 8.00 0.60 1.00 0.75 0.018 0.002 0.053 0.012 0.004 MIN. inch TYP. MAX. 0.063 0.006 0.055 0.014 0.057 0.018 0.008 0.472 0.394 0.315 0.031 0.472 0.394 0.315 0.024 0.039 0.030 OUTLINE AND MECHANICAL DATA TQFP44 (10 x 10) 0(min.), 3.5(typ.), 7(max.) D D1 A A2 A1 33 34 23 22 0.10mm .004 Seating Plane E1 B 44 1 11 12 E B C e L K TQFP4410 4/5 TDA7515 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 2002 STMicroelectronics - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - United States. http://www.st.com 5/5 |
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