KSI-W028-000
1
SD4002
4BIT MICRO CONTROLLER
Description
The SD4002 is CMOS LSI chips developed for world-wide FM / MW / LW tuning with PLL frequency
synthesizer system. The SD4002 can make a compact and high performance FM / MW / LW tuner
with clock function for high-end car stereo, home stereo and so on because these CMOS LSIs are in
64-pin QFP package with built-in PLL frequency synthesizer, controller, 200 MHz prescaler, LCD
driver and IF counter.
Functions
Radio Functions
(1) Manual tuning
Manual tuning up/down ..... Stepped tuning an d rapid tuning.
(2) Auto tuning
Seek up/down ..... Retaining the frequency of a station received.
Scan up/down ..... Receiving in intervals of 5 seconds.
(3) Preset memory scanning ..... Receiving the contents of preset memories on the FM, MW.
and LW bands for 5 seconds each.
(4) VF auto tuning
SK seek up/down .... Retaining the frequency of a SK signal received.
SK scan up/down .... Receiving a station with SK signal in intervals of 5 seconds.
(5) Preset memories
FM band .... FM 1:6 stations, RW 2:6 stations, FM 3:6 stations
MW band ... MW 1:6 stations, MW 2:6 stations
LW band ... 6 stations
VF band .... 6 stations
MW2 cannot be used while the LW band is used.
(6) Last-preset memories ...... 1 station on the FM1, FM2, FM3, MW1, MW2, LW and VF
bands each.
(7) LOC (local) control signal outputs and indications.
(8) FM MONO (monaural) control signal output and indication.(For VF bands, same as for FM)
(9) "ST" (stereo) indicator ...... Enabled on the FM and VF bands.
(10) Auto-preset memories
(11) DK stand-by and SK alarm function
Tape Functions
(1) Tape transport direction indictors ..... Can flash at 2 HZ during fast forward.
(2) AMS (auto music search) control signal output and indication.
(3) MTL (metal) control signal output and indication.
(4) NR1 (noise reduction) and NR2 control outputs and indications.
S
S
e
e
m
m
i
i
c
c
o
o
n
n
d
d
u
u
c
c
t
t
o
o
r
r
KSI-W028-000
2
Functions (Continued)
CLOCK Functions
(1) Selectable 12-hour(with AM and PM indicators) of 24-hour display.
(2) Selectable flashing colon(;) (1Hz)
(3) Low-power (400nA) backup available in the NOCLK(no-clock)mode.
Others
(1) LOUD (loudness) control signal output and indication ..... common to radio, tape and CD
modes.
(2) Key acknowledge(beep) signal outputs (2.25 kHz, 40ms) ..... Enabled by valid
momentary keys.
(3) Display selector and priority display function.
(4) " " (complex disk) indicator
.
Table) Receiving frequency, channel spacing, reference frequency, intermediate frequency
Item
Area Band
Receiving
Frequency
Channel
Space
Reference
Frequency
Intermediate
Frequency
FM
87.5 to 108.0 MHz
50KHz
25KHz
10.7MHz
MW
522 to 1620 KHz
9KHz
9KHz
450KHz
Europe 1
LW
144 to 281 KHz
1KHz
1KHz
450KHz
FM
87.5 to 108.0 MHz
50KHz
25KHz
10.7MHz
MW
522 to 1620 KHz
9KHz
9KHz
459KHz
Europe 2
LW
144 to 281 KHz
1KHz
1KHz
459KHz
FM
87.5 to 108.0 MHz
100KHz
25KHz
10.7MHz
U.S.A 1
MW
530 to 1620 KHz
10KHz
10KHz
450KHz
FM
87.5 to 107.9 MHz
200KHz
25KHz
10.7MHz
U.S.A 2
MW
530 to 1620 KHz
10KHz
10KHz
450KHz
FM
87.5 to 107.9 MHz
200KHz
25KHz
10.7MHz
U.S.A 3
MW
530 to 1710 KHz
10KHz
10KHz
450KHz
FM
87.5 to 108.0 MHz
100KHz
25KHz
10.7MHz
Australia and
Middle and
Near East
MW
531 to 1602 KHz
9KHz
9KHz
450KHz
FM
76.0 to 90.0 MHz
100KHz
25KHz
-10.7MHz
Japan
MW
522 to 1629 KHz
9KHz
9KHz
450KHz
FM
87.5 to 108.0 MHz
100KHz
25KHz
10.7MHz
Latin America
MW
520 to 1620 KHz
5KHz
5KHz
450KHz
SD4002
KSI-W028-000
3
Features
Single power supply of 5V10%
Built-in prescaler (200MHz MAX. Vin=0.3V
PP
), IF counter and LCD driver (1/2 duty, 1/2 bias, frame
frequency:100Hz)
Capable of receiving FM and MW in the whole world and LW in Europe.
Tuning function ..... Manual tuning, auto-tuning (seek and scan) and preset memory scan.
Independent preset memory programming by six buttons for up to 18FM stations (sixFM1, FM2 and
FM3 stations each), up to 12 MW stations (six MW1 and MW2 stations each), up to six LW stations
and VF broadcasting stations.
Each last channel memory for FM : 3, MW:1 and VF : 1
VF auto-tuning (SK signal search) with DK stand-by function.
Control output of MTL (METAL), NR1 (NOISE REDUCTION), NR2 and AMS (AUTO MUSIC SEARCH)
and its display.
Automatic preset station memory function
Compact disc display( )
Loudness control output and its display
Built-in 12 hour/24 hour clock display function (possible to set no clock
)
SD4002
PDF 
ZIP
