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參數(shù)資料
| 型號： | 1384 |
| 英文描述： | 1384 Series Product Brief|AM/FM Tuner Modules |
| 中文描述： | 1384系列產(chǎn)品簡介|的AM / FM調(diào)諧器模塊 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 154K |
| 代理商： | 1384 |
1384 S
ERIES
AM/FM T
UNER
M
ODULES
A
UTOMOTIVE
A
PPLICATIONS
Product Brief
M I C R O T U N E
The 1384 Series AM/FM Tuner
Modules are high-end custom
and semi-custom products
specifically designed to meet the
demanding performance,
market, and pricing targets of
automotive customers. The 1384
Series AM/FM Tuners combine
the low system integration effort
of a standard “plug and play”
module with outstanding features
and absolute high-end
performance.
These tuner modules are
designed for different standards
in the US, Europe, and Japan,
giving them “world” tuner
functionality.
The AM section contains an
up/down conversion system with
an active prestage and an audio
output. Features such as
sensitivity and large signal
performance, together with the
functionality of the implemented
noise blanker, help ensure that
the 1384 Series Tuner Modules
produce clear AM reception
even in critical situations.
The FM section contains a
double down-conversion system
with a selective prefilter circuit
and MPX signal as well as RDS-
MPX signal output. Using
appropriate external signal
processing, the stereo signal and
the RDS/RBDS data can be
derived from these outputs. The
dynamic selectivity function
evaluates the current receiving
situation and the current
modulation continuously and
controls the optimum IF
bandwidth (25 kHz to 155 kHz)
automatically. The dynamic
threshold extension automatically
improves the S/N ratio at low RF
input levels. Using these
features, the 1384 Series Tuner
Modules produce audible signals
where standard tuners produce
only noise and interference.
The integrated RDS update
algorithm controls the down-lined
audio processor (special models
only) and supports the control of
alternative frequency evaluations
so that they are absolutely
inaudible.
Band selection, tuning, and
several tuner functions are
controlled via I
2
C serial bus.
APPLICATIONS
High-end car radios
FEATURES
AM
Up/down conversion
Excellent sensitivity
Superior selectivity due to
highly sophisticated filter
technology
Noise blanker at second IF
High AGC dynamic range
AM Stereo output available
AGC-threshold programmable
FM
Double down-conversion
Selective prefilter circuit
Image reject mixers
Keyed AGC selectable, AGC-
threshold programmable
Dynamic threshold extension
for superior sensitivity
selectable
Outstanding selectivity due to
fixed and variable IF filters with
hardware “closed-loop” control
Supports inaudible RDS
updating
Weather band optional
GENERAL
Available for US, European,
and Japanese markets
I
2
C bus controlled
Very fast PLL
On-board EEPROM supports
digital alignment for AM and
FM
IF Counter information
available via I
2
C bus
Programmable switching
output (open collector)
1384 AM/FM Tuner Module
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