November 2006 Rev 2 1/7
7
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
Description
The front-end is a high performance tuner circuit
for AM/FM - DSP car radios 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.
Order codes
LQFP44
Part numbers Package Packing
TDA7515 LQFP44 (10x 10x 1.4mm) Tray
TDA7515TR LQFP44 (10x 10x 1.4mm) Tape and reel
www.st.com
Block diagram and pin description TDA7515
2/7
1 Block diagram and pin description
Figure 1. Block diagram
Figure 2. Pin connection
AGC
DIV
1/4
1/8
1/6
1/10
:1/:2/:3
VCO
PLL
LPOUT LPAM LPFM LPHC
REFDIV
AGC ADJ
Supply
Bus
Interface
AGC
I
Q
2
TV1 TV2
IF 10.7MHz
DAGC
FM
AM
PM
PM
00AT0037
2
2
Fref
18/100kHz
2
2
optional
2
1234
5678 9 10 11
25
24 23
22
21
20
19
18
17
16
15
14
13
1244
43
42
41
40
39
38
37
36
35
33 32 31 30 29 28 27 26
34
00AT0036
AMRFAGCin
AMRFAGCout
AMPINDR
FMIN1
RFGND
FMIN2
FMAGCTC
TV1
TV2
VCCVCO
MIXOUT1
AMIN1
AMIN2
FMIFAGCin
AMAGCTC
MIXOUT2
IFIN2
IFIN1
GND
IFINAM
VCC SCL
GNDPLL
LPHC
LPFM
LPAM/SW
LPREF
LPOUT
VPLL
VCOE
VCOB
GNDVCO
IFAGCTC
VCCIF
IFOUT1
IFOUT2
IFGND
DAGC
Vref
Fref+
Fref-
IFAMAGCTC
SDA
FMPINDR
TDA7515 Block diagram and pin description
3/7
Table 1. Pin description
Pin No. Pin Name Function
1 AMRFAGCin AM AGC input for RF detection
2 AMRFAGCout AM AGC output for RF AGC
3 AMPINDR AM AGC pin-diode driver
4 FMPINDR FM AGC pin-diode driver
5 FMIN1 FM mixer input 1
6 RFGND RF ground
7 FMIN2 FM mixer input 2
8 FMAGCTC 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
16 LPAM/SW OP AMP input to PLL loop filter AM / switch output (optional)
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 PLL ground
22 SCL Bus connection (IIC clock)
23 SDA Bus connection (IIC data)
24 IFAMAGCTC Time constant for AM IF AGC
25 Fref- Reference frequency input
26 Fref+ Reference frequency input
27 Vref Reference voltage 5V
28 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 IF AGC time constant
34 VCC Supply voltage
35 IFINAM 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 IF input for FM AGC
43 AMIN2 AM RF input
44 AMIN1 AM RF input
Electrical specifications TDA7515
4/7
2 Electrical specifications
2.1 Thermal data
Table 2. Thermal data
2.2 Absolute maximum ratings
Table 3. Absolute maximum ratings
Symbol Parameter
Values
Unit
Min. Typ. Max.
Rth(j-a) Thermal resistance 85 °C/W
Tamb Ambient temperature -40 85 °C
Tstg Storage temperature -55 150 °C
Symbol Parameter Value Unit
VCCIF Supply voltage for IF-interface 12 V
VPLL PLL supply voltage 12 V
VCCVCO VCO supply voltage 12 V
VCC Supply voltage 12 V
VMIXOUT1/2 Open collector voltage 12 V
TDA7515 Package information
5/7
3 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
OUTLINE AND
MECHANICAL DATA
DIM.
mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 1.60 0.063
A1 0.05 0.15 0.002 0.006
A2 1.35 1.40 1.45 0.053 0.055 0.057
B 0.30 0.37 0.45 0.012 0.015 0.018
C 0.09 0.20 0.004 0.008
D 11.80 12.00 12.20 0.464 0.472 0.480
D1 9.80 10.00 10.20 0.386 0.394 0.401
D3 8.00 0.315
E 11.80 12.00 12.20 0.464 0.472 0.480
E1 9.80 10.00 10.20 0.386 0.394 0.401
E3 8.00 0.315
e0.80 0.031
L 0.45 0.60 0.75 0.018 0.024 0.030
L1 1.00 0.039
k 0˚(min.), 3.5˚(typ.), 7˚(max.)
ccc 0.10 0.0039
LQFP44 (10 x 10 x 1.4mm)
0076922 E
Revision history TDA7515
6/7
4 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.
TDA7515
7/7
Please Read Carefully:
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.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2006 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
