ETC 1390

M I C R O T U N E™
1390 FM RDS TUNER MODULE
AUTOMOTIVE APPLICATIONS
APPLICATIONS
•
High-end car radios (FM audio
tuner or background RDS
tuner)
•
Navigation systems (TMC data
tuner)
FEATURES
•
Single down-conversion
•
Excellent sensitivity
•
Selective prefilter circuit
•
Image reject circuit
•
Bus controlled AGC threshold
and IF gain
•
Superior selectivity due to use
of three ceramic filters
•
Special background tuner
technology minimizes
interference with the main
tuner
•
Integrated radio data system
(RDS) demodulator with serial
output (clock and data)
supports European RDS and
US RBDS
•
RDS quality detector output
•
Multipath detector output
•
Field strength detector output
•
Integrated ADC for field
strength and multipath
•
Stop signal output with
evaluation of IF counter, IF
window, field strength, and
multipath
•
Multiplex signal output
•
Integrated PLL with short
response time
•
I2C bus controlled
•
Two programmable switching
outputs (open drain)
1390 FM RDS Tuner Module
The 1390 FM RDS Tuner Module
is a high-end product designed
to meet the demanding
performance, market, and
pricing targets of automotive
customers.
This tuner module is specifically
designed to be used as an FM
audio tuner and/or RDS data
tuner. Its special background
tuner technology minimizes
interference with the main tuner
and supports high-end double
tuner systems. Its excellent
sensitivity and large signal
performance produces clear
sound and reliable RDS data
even in weak receiving
situations. Additionally, the tuner
module is environmentally
hardened to operate under an
extended temperature range and
adverse climatic conditions.
The FM section contains a single
down-conversion system with a
selective prefilter circuit and
state-of-the-art three-stage
ceramic IF filtering. Using
appropriate external signal
processing, the stereo audio
signal can be derived from the
MPX signal. The integrated RDS
demodulator provides a serial
clock and data output. Decoding
this data with an external
microprocessor enables use of
the RDS for numerous
applications, including
alternative frequencies and traffic
messaging channels. Monitoring
the RDS quality output provides
a simple method of evaluating
the current block error rate.
Analog outputs for field strength
and multipath allow optimization
of tuner performance. The
sensitivity of the seek stop mode
can be adjusted via I2C bus.
The 1390 FM RDS Tuner Module
provides two software-controlled
switching outputs (open drain).
Frequency setting and multiple
tuner functions are controlled via
I2C serial bus. This control is
intended to be handled by an
external microprocessor.
Product Brief
1390 FM RDS TUNER MODULE
PRODUCT BRIEF
AUTOMOTIVE APPLICATIONS
OPERATING CHARACTERISTICS
PARAMETER
ELECTRICAL CHARACTERISTICS
MIN
8.5V Power Supply Voltage
Current
Voltage
5V Power Supply Voltage
Current
Voltage
Operating Temperature
Parametric temperature range
Operating temperature range (in
slowly moving air)
Storage Temperature
TYP
MAX
UNIT
8.2
150
8.5
8.8
mA
V
4.75
8
5
5.25
mA
V
-30
+70
°C
-40
+85
°C
-40
+95
°C
INPUT/OUTPUT CHARACTERISTICS
PARAMETER
MIN
Antenna Input
Impedance
IIC Bus Data SDA
Input voltage low
Input voltage high
IIC Bus Clock SCL
Input voltage low
Input voltage high
Frequency
MPX Output
Impedance
RDS Clock Output
Voltage
RDS Data Output
Voltage
RDS Quality Output
Voltage
Field strength (level) Output
Voltage
Multipath Output
Voltage
Stop Signal Output
Voltage
Switching Output 1
Open drain with internal 10 kΩ
pull-up resistance
Switching Output 2
Open drain with internal 10 kΩ
pull-up resistance
TYP
MAX
50
UNIT
Ω
-0.5
2.1
0.9
5.5
V
V
-0.5
2.1
0.9
5.5
400
V
V
kHz
4
kΩ
0
5
V
0
5
V
0
5
V
0
5
V
0
5
V
0
5
V
0
5
V
0
5
V
PARAMETER
Receiving Frequency Range
Sensitivity for S/N=30dB
S + N/N at high RF input
Interstation noise
SINAD
THD + N
Normal condition
RF Input = 4µV, Deviation = 75
kHz
Image rejection
IF Rejection
Adjacent channel selectivity
(100kHz)
Alternate channel selectivity
(200kHz)
Three-signal intermodulation
AM Suppression
MIN
TYP
MAX
UNIT
108.1
1.8
57
-10
50
MHz
µV
dB
dB
dB
0.2
%
87.5
Audio output voltage (Rload =
200 kΩ)
Deviation = 22.5 kHz
Deviation = 50 kHz
Field strength output
RF Input = 20 dBµV
RF Input = 60 dBµV
RF Input = 100 dBµV
Multipath output (AM=50%, 19kHz)
RDS sensitivity for 80% correct
blocks
1.0
%
60
100
dB
dB
6
dB
57
dB
62
57
dB
dB
160
300
mV
mV
2.4
4.4
4.7
3.0
V
V
V
V
18
dBµV
MECHANICAL CHARACTERISTICS
PARAMETER
Length
Width
Height
MEASUREMENT
64.8
16.0
42.0
UNIT
mm
mm
mm
1390 FM RDS Tuner Block Diagram
World Headquarters • Microtune, Inc., 2201 Tenth Street, Plano, TX 75074 USA • Tel: 972-673-1600, Fax: 972-673-1602, E-mail:
sales@microtune.com, Web site: www.microtune.com
European Headquarters • Microtune GmbH and Co. KG, Marie Curie Strasse 1, 85055 Ingolstadt / Germany • Tel: +49-841-9378-011, Fax: +49-841-
9378-010, Sales Tel: +49-841-9378-020, Sales Fax: +49-841-9378-024
Pan-Asian Headquarters • Microtune (Hong Kong) Ltd., Room 1008 Star House, 3 Salisbury Road, Tsimshatsui, Hong Kong • Tel: +852-2376-2323, Fax:
+852-2302-0756
For a detailed list of current 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, MicroTuner, MicroModule, 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: 5,625,325; 5,648,744; 5,717,730; 5,737,035; 5,739,730; 5,805,988; 5,847,612; 6,100,761; 6,104,242; 6,144,402; 6,163,684;
6,169,569; 6,177,964; 6,218,899 and additional patents pending or filed.
Entire contents Copyright © 2002 Microtune, Inc.s
PB-00029
Rev 1.0 — February 2002
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