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TDA7515
July 2002
This is preliminary information on a new product now in development. Details are subject to change without notice.
s
RF AGC generation by RF and IF detection
s
I/Q Mixer for FM IF 10.7MHz with image
rejection and programmable IF tank adjust for
FM and AM
s
Preamplifier and mixer for IF 10.7MHz AM
upconversion
s
VCO and programmable divider for "world
receiver"
s
Programmable controlled IF-gain stage
Additional features:
s
High performance fast PLL for RDS-system
s
Electronic alignment for the preselection stages
s
All functions bus-controlled
DESCRIPTION
The frontend is a high performance tuner circuit for
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 implementa-
tion of several tuning functions and a minimum of ex-
ternal components.
TQFP44
ORDERING NUMBER: TDA7515
PRODUCT PREVIEW
RF-FRONTEND FOR AM/FM-DSP-CARRADIOS
WITH IF SAMPLING
1
BLOCK DIAGRAM
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
TDA7515
2/5
2
PIN CONNECTION
3
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 Pindiode 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
1
2
3
4
5
6
7
8
9
10 11
25 24 23
22
21
20
19
18
17
16
15
14
13
12
44
43
42
41
40
39
38
37
36
35
33 32 31 30 29 28 27 26
34
00AT0036
AMRF
A
GCin
AMRF
A
GCout
AMPINDR
FMIN1
RFGND
FMIN2
FMA
GCTC
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
IF
A
GCTC
VCCIF
IFOUT1
IFOUT2
IFGND
DA
G
C
Vref
F
ref+
F
ref-
IF
AMA
GCTC
SD
A
FMPINDR
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TDA7515
4
THERMAL DATA
5
ABSOLUTE MAXIMUM RATINGS
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
Symbol
Parameter
Values
Unit
Min.
Typ.
Max.
R
th(j-a)
Thermal resistance
85
C/W
T
amb
Ambient temperature
-40
85
C
T
stg
Storage temperature
-55
150
C
Symbol
Parameter
Value
Unit
V
CCIF
Supply voltage for IF-interface
12
V
V
PLL
PLL supply voltage
12
V
V
CCVCO
VCO supply voltage
12
V
V
CC
Supply voltage
12
V
V
MIXOUT1/2
Open collector voltage
12
V
3
PIN DESCRIPTION (continued)
Pin No.
Pin Name
Function
TDA7515
4/5
TQFP44 (10 x 10)
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
0.014
0.018
C
0.09
0.20
0.004
0.008
D
12.00
0.472
D1
10.00
0.394
D3
8.00
0.315
e
0.80
0.031
E
12.00
0.472
E1
10.00
0.394
E3
8.00
0.315
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.)
A
A2
A1
B
Seating Plane
C
11
12
22
23
33
34
44
E1
E
D1
D
e
1
K
B
TQFP4410
L
0.10mm
.004
OUTLINE AND
MECHANICAL DATA
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.
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2002 STMicroelectronics - All Rights Reserved
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