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Número de pieza | TDA7546 | |
Descripción | Multichip module | |
Fabricantes | STMicroelectronics | |
Logotipo | ||
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No Preview Available ! TDA7546
Multichip module for TMC tuner applications
Features
■ High-performance FM receiver
www.DataSheet4U■.comSW-Controlled world tuning
■ Variable bandwidth IF filter (ISS, intelligent
selectivity system)
■ Programmable quality detectors
■ High-speed PLL for RDS operation
■ Full electronic alignment
■ High-performance fully digital RDS/RBDS
demodulator
■ Integrated group and block synchronization
■ Error detection and correction
■ Full I2C-Bus control
Description
The TDA7546 multichip module combines in a
single compact (14X14mm) 80-pin package the
functionalities of a state-of-the-art FM receiver
and RDS processor, exploiting one single
10.25MHz crystal reference.
LQFP80
The following two devices are included
– TDA7512F, high performance car-radio FM
tuner with high-speed on-chip PLL and
variable-bandwidth IF filter (ISS)
– TDA7333N, fully digital RDS data decoder
with with on-chip group and block
synchronization and error
detection/correction.
Both chips are I2C-bus controlled.
Order codes
Part number
TDA7546
TDA7546TR
Package
LQFP80
LQFP80
Packing
Tray
in Tape & Reel
October 2006
Rev 4
1/68
www.st.com
1
1 page TDA7546
List of tables
Table 49.
Table 50.
Table 51.
pllreg0 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Block diagram quality detection principle (without overdeviation correction) . . . . . . . . . . . 64
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
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5 Page TDA7546
Pin description
Table 1. Pin configuration (continued)
TDA7546
FM Tuner RDS Decoder
TDA7512F TDA7333N
Name
65 48
VREF1
66 49
67
GNDVCC2
68 50
IF1AMP2OUT
69
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70
51
52
VCC2
IF1AMP2IN
71 53
IF1REF
72 54
73 55-56
IF1AMP1OUT
VCC
74 57
75 58
IF1AMP1IN
ISS
76 59
GNDIF1
77 60
IFAGCIN
78 61
79 63
VCCIF1
MIX1OUT2
80 64
MIX1OUT1
Note:
All NC pins can be connected to Ground.
Function
5V Reference
Analog Ground
Not Connected
IF1 Amplifier 2 Output
Analog Supply
IF1 Amplifier 2 Input
IF1 Amplifier Reference
IF1 Amplifier 1 Output
Supply
IF1 Amplifier 1 Input
ISS Filter Status
FM IF1 Ground
IF AGC Input
IF1 Supply
Mixer1 Ouput 2
Mixer1 Ouput 1
2.1 Thermal data
Table 2. Thermal data
Symbol
Parameter
RTh j-amb Thermal Resistance junction to ambient – IC soldered on multilayer PCB
Value
53
Units
°C/W
11/68
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet TDA7546.PDF ] |
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