M I
C
R
O
T
U
N E®
RF SILICON AND SUBSYSTEMS SOLUTIONS
FOR BROADBAND COMMUNICATIONS AND AUTOMOTIVE ELECTRONICS
MT1393ETC FM/RDS
TUNER MODULE
PRODUCT BRIEF
The MT1393ETC is a highly integrated
FM tuner module with an on-board
data decoder for RDS (Europe) as well
as RBDS (US).
MT1393ETC FM/RDS Tuner Module
The MT1393ETC FM/RDS Tuner
Module is specifically designed to
meet the demanding performance
targets of automotive customers, at an
attractive price. This tuner module has
been developed for both FM audio
reception as well as RDS/RBDS data
reception and includes both an
integrated receiving condition
analyzer and an integrated RDS/RBDS
decoder. The high level of functionality
makes this tuner module an ideal
solution for use as a dedicated
background tuner enabling data
services offered via RDS/RBDS and
monitoring alternate frequencies. Its
excellent sensitivity and strong signal
performance produce clear audio and
reliable data reception, even under
critical receiving situations.
The MT1393ETC is environmentally
hardened to operate over an extended
temperature range and under adverse
climatic conditions and offers a very
small form factor for space-critical
applications. The tuner section of the
module contains a double down-
conversion system with a selective
pre-filter circuit and image reject
mixers. The dynamic selectivity
function evaluates the current
receiving situation continuously and
automatically determines the optimum
IF bandwidth. The audio path provides
an MPX signal output for external
stereo decoding.
The RDS/RBDS portion of the
MT1393ETC contains, in addition to
the demodulator and decoder, data
processing functions including
synchronization and error correction.
An integrated RAM buffer for up to 24
RBS/RBDS blocks decreases the
number of data pulls via the I2C bus.
This serial bus is used to control
frequency settings and multiple
programmable functions of the
MT1393ETC.
APPLICATIONS
•
•
Car radios (FM audio reception
or background data reception)
Dynamic navigation systems
(Traffic data reception)
FEATURES
FM
•
•
•
•
•
Double down-conversion
Selective pre-filter circuit
Image reject mixers
Keyed AGC selectable, AGC-
threshold programmable
Highly sophisticated IF filter
technology with dynamically
controlled bandwidth
M I C R O T U N E
•
•
FM demodulator with noise
cancellation
Receiving condition analyzer with
detectors for “adjacent channel”,
“multipath” and “fieldstrength”
Stop signal output
Adjustable softmute control
Multiplex (MPX) audio output
Integrated demodulator and
decoder
Supports European RDS and US
RBDS
Automatic group- and block-
synchronization
Error detection and error
correction
RAM with a capacity of 24 blocks
Programmable interrupt for
readout of data via I
2
C bus
I
2
C bus-controlled
On-board EEPROM supports
digital alignment
Very small form factor
Design tool: Evaluation Kit
MT1393ETC_EK available
•
•
•
RDS
•
•
•
•
•
•
GENERAL
•
•
•
•
M T13 93 ETC FM R DS TUNER M ODUL E
PRODUCT BRIEF
OPERATING CHARACTERISTICS
P
ARAMETER
5V Power supply voltage
Current
Voltage
8.5V Power supply voltage
Current
Voltage
Operating temperature
Storage temperature
8
-40
-40
100
8.5
9
+85
+95
mA
V
°C
°C
4.5
35
5
5.5
mA
V
ELECTRICAL CHARACTERISTICS
T
YP
M
AX
U
NIT
P
ARAMETER
Receiving frequency range
USA band
Europe band
Sensitivity for S/N=26 dB
S/N at high RF input
Image rejection
AM supression
THD+N
Adjacent channel selectivity (100 kHz)
Alternate channel selectivity (200 kHz)
87.9
87.5
2
60
70
55
0.15
10
72
70
-1
430
1.8
4
18
107.9
108
MHz
MHz
µV
dB
dB
dB
%
dB
dB
dB
dB
mV
V
V
dBµV
M
IN
M
IN
T
YP
M
AX
U
NIT
INPUT/OUTPUT CHARACTERISTICS
P
ARAMETER
Antenna Input
Input impedance
VSWR
Field-strength level detector output
Voltage
Adjacent channel detector output
Voltage (open collector with
pull up)
SCL (IIC bus)
SDA (IIC bus)
Stop signal output
Voltage
Maximum sink current
Multipath detector output
Voltage
Output resistance
MPX audio output
Load resistance
Output resistance
Interrupt output
Low level voltage
High level voltage
Output resistance
4
10
1.2
V
V
kΩ
20
50
kΩ
Ω
0.1
2.5
4.9
V
kΩ
0.2
5
1
V
mA
0.1
4.9
V
0
5
V
50
4
Ω
M
IN
T
YP
M
AX
U
NIT
Intermodulation rejection
Frequency response
MPX output voltage (deviation=75 kHz)
Field-strength output voltage
RF input = 30 dBµV
RF input = 100 dBµV
RDS sensitivity for 50% correct received
blocks
Standard measurement conditions
High and Low levels are according to the
IIC bus specification with thresholds of
3.3V or 5V.
Antenna dummy with loss=6dB; RF
input = 60dBµV; deviation = 40kHz;
audio frequency = 1kHz; de-emphasis
= 50µs; CCIR weighted
MECHANICAL CHARACTERISTICS
P
ARAMETER
Vertical Housing (Product ID = 3x0923)
Length
Width
Height
48
14
29.8
mm
mm
mm
D
IMENSION
U
NIT
All inputs/outputs via pins; number of pins is 16; pin grid is 2.54mm
FM
Antenna
FM Tuner
FM Demodulator
Multipath
Detector
Adjacent
Detector
Multipath
Adjacent
Channel
Fieldstrength
Level
PLL
EEPROM
Level
Detector
IIC Bus
Interface
Power
Supply
RDS Demodulator
& Decoder
IF
Counter
Stopsignal
SCL SDA
5V 8.5V
RDS
Interrupt
MPX
MT1393ETC FM/RDS Tuner Block Diagram
Microtune, Inc., 2201 Tenth Street, Plano, TX 75074, USA
Tel: +1-972-673-1600, Fax: +1-972-673-1602, E-mail: sales@microtune.com, Web site:
www.microtune.com
For a detailed list of design centers, sales offices, and sales representatives, visit our Web site at
www.microtune.com.
The information in this document is believed to be accurate and reliable. Microtune assumes no responsibility for any consequences arising from the use of this information, nor from any infringement of patents or the
rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or other rights of Microtune. The information in this publication replaces and supersedes all
information previously supplied, and is subject to change without notice. The customer is responsible for assuring that proper design and operating safeguards are observed to minimize inherent and procedural hazards.
Microtune assumes no responsibility for applications assistance or customer product design.
The devices described in this document are not authorized for use in medical, life-support equipment, or any other application involving a potential risk of severe property or environmental damage, personal injury, or
death without prior express written approval of Microtune. Any such use is understood to be entirely at the user’s risk.
Microtune is a registered trademark of Microtune, Inc. MicroTuner, MicroStreamer, VideoCaster, DataCaster, and the Microtune logo are trademarks of Microtune, Inc. All other trademarks belong to their respective
companies.
Microtune’s products are protected by one or more of the following U.S. patents: DE10011662; GB1026825; ES1026825; DE19628727; DE19904588.7; DE348698; FR348698; GB348698; IT348698; DE3821716;
US5,933,946; DE50000802.7; DE552624 and additional patents pending or filed.
Entire contents Copyright © 1996 - 2005 Microtune, Inc.
041105
PB-00123 — Rev 1.0
APRIL 2005
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