Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
CMOS IC
Single-Chip PLL Controller
Ordering number:ENN3100A
LC7230-8272
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Overview
The LC7230-8272 is a PLL, LCD driver-contained electronic tuning-use single-chip microcontroller designed for
reception of LW/MW/SW/FM bands in the U.S.A.,
Europe, Japan, and South Africa.
Package Dimensions
unit:mm
3044B-QIP80A
[LC7230-8272]
26.0
20.0
20.0
14.0
3.0
1.0
0.35
0.8
1.0
0.8
0.8
64
65
80
1
0.35
22.6
3.0
0.8
0.15
41
40
25
24
2.45max
1.7
SANYO : QIP80A
1.7
16.6
1.7
2.15
O2501TN (KT)/7251JK/6270TA, (GTPS) No.3100–1/22
Functions and Features
• Receiving frequency
AreaBand
Japan
USA
EUROPE
S.AFRICA
Receiving FrequencyFM (MHz)
RangeOthers (kHz)
FM
MW
FM
MW
FM
MW
FM
MW
LW
FM
MW
LW
SW
FM
MW
LW
SW
FM
MW
LW
FM
MW
LW
SW
76.0 to 90.0
531 to 1611
(531 to 1629)
87.9 to 107.9
530 to 1610
(530 to 1720)
87.9 to 107.9
522 to 1611
(522 to 1719)
87.50 to 108.00
531 to 1602
(522 to 1611)
153 to 281
(146 to 290)
87.50 to 108.00
531 to 1602
(522 to 1611)
153 to 281
(146 to 290)
SW1 5800 to 7300
SW2 9500 to 18000
87.50 to 108.00
531 to 1602
(522 to 1611)
153 to 281
(146 to 290)
SW1 3200 to 7300
SW2 9500 to 18000
87.50 to 108.00
531 to 1602
(522 to 1611)
153 to 281
(146 to 290)
87.50 to 108.00
531 to 1602
(522 to 1611)
153 to 281
(146 to 290)
SW1 5800 to 7300
SW2 9500 to 18000
LC7230-8272
Reference
Frequency
(kHz)
50
9
(9)
50
10
(10)
50
9
(9)
25
9
(9)
1
(1)
25
9
(9)
1
(1)
5
25
9
(9)
1
(1)
5
5
25
9
(9)
1
(1)
25
9
(9)
1
(1)
5
Step
(kHz)
100
9
(9)
200/100
10
(10)
200/100
9
(9)
50
9
(9)
1
(1)
50
9
(9)
1
(1)
5
50
9
(9)
1
(1)
5
5
50
9
(9)
1
(1)
50
9
(9)
1
(1)
5
FM (MHz)
IF
Others (kHz)
–10.7
450/468
10.7
450
10.7
450/468
10.7
450/468
450/468
10.7
450/468
450/468
450
10.7
450/468
450/468
450
–10.7
450/468
450/468
–10.7
450/468
450/468
450
(↑)
(↑)
(↑)
(↑)
(↑)
(↑)
(↑)
(↑)
(↑)
(↑)
(↑)
(↑)
(↑)
Diode
Matrix
B2B1B
0
1 0 0
0 0 0
1 1 1
0 0 1
0 1 0
0 1 1
↑
1 1 0
1 0 1
Note) 1. A frequency in ( ) is selected by using diode matrix “SHIFT”.
2. The presence or absence of LW and U.S.A. 200/100 are selected by using diode matrix “LW200”.
3. AM IF450/468 is selected by using diode matrix.
• Tuning method (Sawtooth wave mode : )
· Manual up/down
· Auto up/down
· Preset call by 8-button method
• Preset memory
FM: Mode 1 ....... 8 channels
Mode 2 ....... 8 channels24 channels in all
AM : (MW+LW+SW)
No distinction between mode 1 and mode 2 ......8 channels
• Auto preset scan
• Timer function
· Timer.................. Causes turn-ON mode only. Sleep timer (Set to the nearest 10 minutes).
· Clock.................. 12/24hr mode12hr : Japan, USA
24hr : Europe, South Africa
• Usable with remote control
The LC7461M-8103 is used.
• Usable with electronic volume control : 7-dot LED (using the LB1417) display available.
The LC7535 is used.
• Usable with the function switch : LCD display and LED (using the MLC74HC375) display available.
The LC7821 (N) is used.
* See “Note” in Sample Application Circuit 4 (page 20).
No.3100–6/22
LC7230-8272
Display
* ST displays when tuned to an FM station and STEREO is held LOW.
Display font
Key Description
• CH1 to CH8
Key for writing/calling preset channels 1 to 16 (FM), 1 to 8 (AM). CH1 key, CH2 key correspond to channel 1/9, 2/
10, respectively. For example, when you push CH1 key and release it within 0.5 second, CH1 is called ; and when
released in 0.5 second or more, CH9 is called.
When you push ME key, is displayed on the frequency display area and CH1 to 8 may be written for 5 seconds.
If you push ME key once again within 5 seconds, is displayed and CH9 to 16 may be written. When you push an y
one key of CH1 to CH8 , your desired channel is written in a specified memory.
CH2CH3CH4CH5CH6CH7CH8
CH1
1
2
3
4
5
6
7
8 channels
(Mode 1)
(Mode 2)
9
10
11
12
13
14
15
8
16
•ME
¡ Used to write a new channel in the preset memory. When you push this key once, (mode 1) is specified. When
you push twice, (mode 2) is specified. When you push once again, returns.
The write enable mode is released automatically 5 seconds after this key pushed.
™ When you push this key together with TIMER key, the timer setting mode (time setting mode) is entered.
• A/M (AMAN DIMRX=1)
Key for selecting the auto/manual tuning mode. Each time you push this ke y, the mode is switched as auto → manual →
auto ..... AUTO display flashes at the auto mode.
• TUP TDN
¡ Manual mode
Each time you push these keys, the channel No. goes up/down by one. When you hold these keys pushed for 500ms
or more, the channel No. goes up/down at a 60ms/step rate.
™ Auto mode (AMAN DIMRX=1)
A broadcasting station is searched automatically in an up/down direction and a receiving frequency is held. If you
hold this key pushed when the receiving frequency is reached, no auto stop occurs but a temporary stop (500ms)
occues. The searching rate is 60ms/step.
• FM MW LW SW
Key for band selection.
• BAND
Key for band selection. Each time you push this key, band switching occurs.
Continued on next page.
No.3100–7/22
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