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PRELIMINARY DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD17006AGF-011
4-BIT SINGLE-CHIP MICROCONTROLLER WITH PRESCALER,
PLL FREQUENCY SYNTHESIZER, AND IF COUNTER
FOR AUTOMOBILE FM, MW, AND LW RADIOS
DESCRIPTION
The
µ
PD17006AGF-011 is a 4-bit CMOS microcontroller for digital tuning and can receive European FM,
MW, and LW bands. It contains a prescaler (150 MHz MAX.), PLL frequency synthesizer, and IF counter.
This microcontroller supports European Radio Data System (RDS) and implements various RDS func-
tions, so that it can configure with a single chip a high-performance FM, MW, or LW tuner such as that for
luxury automobile stereo systems.
In addition, an RDS decoder is realized as a software library, so that the system using the
µ
PD170006AGF-
011 can eliminate one IC chip as compared with existing systems.
FEATURES
q
Preset memory
Five stations each for four bands, FM1, FM2, FM3,
and AM (shared with MW and LW), totaling 20
stations
q
RDS function
• Broadcasting station name display (PS)
• AF operation
• AF list of up to 25 stations can be loaded.
• Supports METHOD A/B
• Traffic information standby function (TP, TA)
• Alarm function (PTY = 31)
• PTY seek function (broadcasting program iden-
tification information)
• CT function (time adjustment function)
• RDS memory
AF data for eight stations can be stored for 22
types of PI codes.
• EON function
• RDS memory AF data update function
• EON station traffic information selection func-
tion
• RDS decode function
q
Last channel memory
One station for each band
Tuning function
• Manual seek/auto seek
• Auto store memory
• Auto retune
q
q
q
µ
PD16430A as LCD controller/driver
5 V±10% single power source
ORDERING INFORMAITON
Part number
Package
80-pin plastic QFP (14
×
20 mm)
Quality grade
Standard
µ
PD17006AGF-011-3B9
Please refer to "Quality grade on NEC Semiconductor Devices" (Document number IEI-1209) published by
NEC Corporation to know the specification of quality grade on the devices and its recommended applications.
The information in this document is subject to change without notice.
Document No. ID-3526
(O.D. No. ID-9042)
Date Published November 1994 P
Printed in Japan
©
1994
µ
PD17006AGF-011
FUNCTIONAL OUTLINE
Receive frequency, channel space, reference frequency, intermediate frequency
Parameter
Band
FM
Receive frequency
87.50-108.00 MHz
Channel space
50 kHz
Reference frequency
50 kHz
Intermediate frequency
10.7 MHz
450 kHz
459 kHz
10.71 MHz
450 kHz
459 kHz
10.71 MHz
MW
522-1620 kHz
9 kHz
9 kHz
LW
144-281 kHz
1 kHz
1 kHz
Station selection function
(1) Manual tuning
Type
Manual up
Manual down
Description
Increases or decreases frequency by 1 step each time key is pressed. If key is held down
for 0.5 second or longer, frequency is increased/decreased rapidly until key is released.
(2) Auto tuning
Type
Seek up
Seek down
Description
Searches station in up or down direction. When station is found, its frequency is held
(seek operation is performed in 100-kHz steps in FM band). Only RDS stations are
searched for in RDS mode. Only traffic information station is searched for in TP/SK
mode.
(3) Preset memory
Five stations can be stored for each of the four bands (FM1, FM2, FM3, and AM). Therefore, up to 20
stations can be stored. The AM band is shared with MW and LW bands.
(4) Preset memory scan
The contents of the FM1, FM2, FM3, and AM preset memories can be received independently for about
5 seconds each.
(5) Auto store memory
Stations can be searched starting from the minimum frequency. When stations are found, they are
written to the preset memories starting from the one with the highest signal meter level. The stations
are then sorted in the order of frequency.
(6) Last channel memory
One station of last channel memory is provided independently for each of FM1, FM2, FM3, and AM.
(7) Auto retune
If the SD signal cannot be detected for about 20 seconds while a station is being received, tuning is
automatically started.
2
µ
PD17006AGF-011
RDS function
(1) Broadcasting station display
The name of the broadcasting station currently being received is displayed by using a PS code.
(2) AF operation
An AF list of up to 25 stations can be loaded, with METHOD A and METHOD B supported. Loading of
AFs of other stations by EON is also supported.
(3) Traffic information station selection
TA and TP bits are detected in TP/SK standby status and a traffic information station is selected. This
function supports EON.
(4) Time adjustment
The internal timer is adjusted by using CT code.
(5) Alarm
When the PTY alarm code (=31) is received, the sound is changed to the radio.
(6) RDS memories
Up to 22 types of PI codes can be stored in the RDS memories. The memory of each PI code stores eight
stations from the corresponding AF lists.
(7) Broadcasting program identification information
By using PTY codes 0 to 15, the name of the broadcasting program currently being received can be
displayed. In addition, searching by using the displayed program name can be performed.
Timer function
(1) 12-hour display (with “
” and “
” displayed) and 24-hour display
(2) Flashing (1 Hz) of the colon (“:”) can be enabled or disabled.
(3) Low-current backup is possible in non-timer mode.
Tape function
(1) Sound selection can be made by tape signal input.
(2) Tape running direction can be displayed.
(3) Noise reduction output can be performed.
CD function
(1) Sound selection can be performed by CD signal input.
(2) Sound selection can be performed by
CD
key.
3
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