Sanyo LC72348G-9970 Specifications

Ordering number : ENN*6633

Preliminary

LC72348G-9970

CMOS IC

LC72348G-9970

Portable Stereo Software Specifications

Overview

The LC72348G-9970 is a single chip controller designed
for portable stereo applications.
It incorporates an AM / FM PLL tuner covering the frequency
requirements in the USA, Europe, East Europe, and Japan.
A 1/4 duty cycle, 1/2 bias LCD driver is also built in.

Features and Functions

•

10 station memories in each of three bands:
AM, FM I, FM II

•

Integrated 1/4 duty cycle, 1/2 bias LCD driver.

•

On / off switchable clock / alarm function
(2 clock settings).

•

12/24-hour display switching.

•

World area switching.

•

Tape function display.

•

Remaining battery capacity display.

•

Mono / stereo switching.

•

Hold function.

•

Equipped for AM / FM reception in USA,Europe,
East Europe, and Japan.

•

Integrated LPF amplifier.

•

Tuning voltage generating circuit.

•

Single 3V power supply.

•

QIP64G package.

Package Dimensions

unit : mm

3231-QIP64G

[LC72348G-9970]

17.2

14.0

0.8

0.35

116

15.6

17.2

1.6

14.0

1.0

49

1.0

0.8

1.0

48

64

1.6

1.0

33

32

17

3.0max

0.8

SANYO : QIP-64G

0.15

0.1

2.15

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.

SANYO Electric Co.,Ltd. Semiconductor Company

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

81000 RM (IM)

No.6633-1/10

Pin Assignment

LC72348G-9970

XIN63TEST162AGND61AOUT60AIN59EO58VSS57AMIN56FMIN55VDD54TU53RES52DBR151DBR250DBR349DBR4

64

XOUT

TEST2
KEYIN3
KEYIN2
KEYIN1
KEYIN0

KEYOUT3
KEYOUT2
KEYOUT1
KEYOUT0

BAND

FM MN/ST

NC

NC
AREA1
AREA0

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

17

18NC19NC20

TAPE

LC72348G--9970

21

22

23

24

BUZZER

PWR CHECK2

STEREO

PWR CHECK3

VSS

25

POWER

26

27

HOLD

28

MUTE

TUNER OUT

29

SD IN

30

S1531S1432S13

COM1

48

COM2

47

COM3

46

COM4

45

S1

44

S2

43

S3

42

S4

41

S5

40

S6

39

S7

38

S8

37

S9

36

S10

35

S11

34

S12

33

Top view

ILC00004

No.6633-2/10

Pin Function

LC72348G-9970

No. Pin name Designation I / O Function description

1 XOUT XOUT OUT Quartz output
2 TEST2 TEST2 IN Connect to GND

3 PA3 KEYIN3 IN Key input

4 PA2 KEYIN2 IN Key input

5 PA1 KEYIN1 IN Key input

6 PA0 KEYIN0 IN Key input
7 PB3 KEYOUT3 OUT Key output Scan Standby “Low”

8 PB2 KEYOUT2 OUT Key output Scan Standby “Low”

9 PB1 KEYOUT1 OUT Key output Scan Standby “Low”
10 PB0 KEYOUT0 OUT Key output Scan Standby “Low”
11 PC3 BAND OUT Band output FM band AM band “Low”

12 PC2 FM MN / ST OUT
13 PC1 NC OUT OPEN

14 PC0 NC OUT OPEN
15 PD3 AREA1 IN See information on *1

16 PD2 AREA0 IN
17 PD1 TAPE IN TAPE input See next page *2 No chattering

18 PD0 / INT NC OUT OPEN
19 PE1 NC OUT OPEN

20 PE0 / BEEP BUZZER OUT Beep output

21 PF2 PWR CHECK2 IN Backup input Normal Backup

22 PF1 / ADI1 PWR CHECK3 IN
23 PF0 / ADI0 STEREO IN STEREO input See next page *4 No chattering

24 VSS VSS Ground pin
25 S20 / PG3 POWER OUT Power output Power off Power on “Hi”
26 S19 / PG2 HOLD IN HOLD key input HOLD off HOLD on No chattering
27 S18 / PG1 MUTE OUT Muting output Muting on Muting off “Low”

28 S17 / PG0 TUNER OUT OUT

29 S16 / PH3 SD IN IN SD input
30 S15 / PH2 S15 OUT Segment output

31 S14 / PH1 S14 OUT Segment output
32 S13 / PH0 S13 OUT Segment output
33 S12 S12 OUT Segment output
34 S11 S11 OUT Segment output
35 S10 S10 OUT Segment output
36 S9 S9 OUT Segment output
37 S8 S8 OUT Segment output
38 S7 S7 OUT Segment output
39 S6 S6 OUT Segment output
40 S5 S5 OUT Segment output
41 S4 S4 OUT Segment output
42 S3 S3 OUT Segment output
43 S2 S2 OUT Segment output
44 S1 S1 OUT Segment output
45 COM4 COM4 OUT Common output

FM MN / ST

(mono / stereo) output key state

Destination area input input combinations

Power check input *3 ADC input

(A / D) select

Tape / radio switching

output

Logical Logical Initial

“High” “Low” state

Key Key not Pull-down

pressed pressed enabled

Key Key not Pull-down

pressed pressed enabled

Key Key not Pull-down

pressed pressed enabled

Key Key not Pull-down

pressed pressed enabled

FM Stereo FM Mono “Low”

given on next page

Normal “Hi”, 2 beep

types

T ape mode Radio mode “Hi”

SD not SD Chattering 20 --

pressed pressed 30 ms

“Hi”

Remarks

FM MN / ST

*1

Pull-down

enabled

No.6633-3/10

LC72348G-9970

No. Pin name Designation I / O Function description
46 COM3 COM3 OUT Common output

47 COM2 COM2 OUT Common output
48 COM1 COM1 OUT Common output

49 DBR4 DBR4 OUT

50 DBR3 DBR3 OUT

51 DBR2 DBR2 OUT

52 DBR1 DBR1 OUT
53 RES RES IN Reset input

54 TU TU OUT
55 VDD VDD +3V power supply
56 FMIN FMIN IN FM input
57 AMIN AMIN IN AM input
58 VSS VSS Ground pin
59 E0 E0 OUT Error output
60 AIN AIN IN Low-pass filter input
61 AOUT AOUT OUT Low-pass filter output
62 AGND AGND Connect to GND
63 TEST1 TEST1 IN Connect to GND

64 XIN XIN IN Quartz input

LCD power supply

step-up pin

LCD power supply

step-up pin

LCD power supply

step-up pin

LCD power supply

step-up pin

Tuning voltage generating circuit output

Logical Logical Initial

“High” “Low” state

Remarks

*1 : PD3 (AREA 1), PD2 (AREA 0) inputs

PD3 PD2 Destination area

Hi Low USA
Low Hi Europe
Low Low East Europe

Hi Hi Japan

*2 : PD1 (TAPE) input

Tuner off changes the following functions

Condition PD1 State (display)

Tuner off Hi Tape mode (“TAPE” displayed)

(TAPE input) Low Power off (clock display)

*3 : PF1 / ADI1 (PWR CHECK 3) input

A/D value and operation status are shown below. A/D is read only at power-on.

Input voltage Detection method P-FUL P-MID P-LOW Operation state A / D input value

--2.64V PF1(A / D) Lit Lit Lit Normal 00h-0Eh

2.45V--2.10V PF1(A / D) Out Lit Lit Normal 0Fh-10h

2.09V--1.81V PF1(A / D) Out Out Flashing Normal 11h-15h

1.80V-- PF1(A / D) Out Out Out
PF2 Out Out Out Backup mode

Transition to

radio off

*4: PF0 / ADI0 (STEREO) input

PF0 input switches functions as shown below during Tuner ON.

Condition PF0 State (display)
Tuner ON Hi “FM ST” flashing (when FM band tuning only)
(FM ST input) Low “FM ST” lit (when FM band tuning only)

16h-1Fh

No.6633-4/10

LC72348G-9970

Key Operation Description

Key Operation Description

Tuner mode

- Frequency changes upwards by one step when a key is depressed for less than 0.5 second and released. In this case,

a 3.125 kHz buzzer is output.

- Keeping the key depressed for more than 0.5 second changes frequency upwards by one step every 100 ms.

- At the band edge (changeover from maximum frequency to minimum frequency), there is a 500 ms wait.

Up / Hour

Down / Min - Key is inoperative.

Memo 1
Memo 2
Memo 3
Memo 4
Memo 5

T ape mode

- Key is inoperative.

Clock setting mode

- During clock 1 and 2 setting, hour indication changes upwards by one step with each push. Keeping the key depressed for more than

0.5 seconds causes a change by one step every 250 ms, until the key is released.

Alarm setting mode

- During alarm setting, hour indication changes upwards by one step with each push. Keeping the key depressed for more than 0.5
seconds causes a change by one step every 250 ms, until the key is released.

Tuner mode

- Frequency changes downwards by one step when a key is depressed for less than 0.5 second and released. In this case,

a 3.125 kHz buzzer is output.

- Keeping the key depressed for more than 0.5 second changes frequency downwards by one step every 100 ms.

- At the band edge (changeover from minimum frequency to maximum frequency), there is a 500 ms wait.

T ape mode

Clock setting mode

- During clock 1 and 2 setting, minute indication changes upwards by one step with each push. Keeping the key depressed for more than

0.5 seconds causes a change by one step every 150 ms, until the key is released.

Alarm setting mode

- During alarm setting, hour indication changes upwards by one step with each push. Keeping the key depressed for more than 0.5
seconds causes a change by one step every 150 ms, until the key is released.

Tuner mode

- Serve for preset station recall and store.

- Pressing a key and releasing it within less than 2 seconds calls up the frequency stored in the corresponding preset number (1 -- 10).
Keeping a key depressed for 2 seconds or more writes the currently received frequency to the corresponding preset number (1 -- 10).

- For information on switching between presets 1 -- 5 and 6 -- 10, see the Memo+ key section.

- When recall or store is confirmed, a 1.56 kHz beep corresponding to the preset number is output.

T ape mode

- Keys are inoperative.

Power off mode

- Keeping a key depressed for more than 500 seconds calls up the corresponding clock display for Memo1 or Memo2.

No.6633-5/10

LC72348G-9970

Key Operation Description

Tuner mode

- Pressing this key and then one of the Memo1 -- Memo5 keys within 5 seconds causes the preset numbers 6 -- 10 to be called. Pressing
one of the Memo1 -- Memo5 keys after 5 seconds have elapsed or after another key was pressed causes the preset numbers 1 -- 5 to
be called.

- At each push of the key, a 1.56 kHz beep is output for 50 ms.

T ape mode

- Key is inoperative.

Power off mode

- Serves for activating and terminating the clock/alarm setting mode.

Memo+

Clock display Alarm setting mode Clock setting mode

ALARM

Function - Keeping the key depressed for 2 seconds or more while AM band or FM I band is selected switches to Power OFF (TAPE).

FM MN / ST

Initial destination
area setting JP US EU
Key

World area

switching

” Memo + ” + ” Down ” EU EU US
” UP ” + ” Down ” JP US EU

CLOCK Sel

(Diode switch)

ALARM Sel

(Diode switch)

- Keeping the key depressed for at least 1 second causes the following mode change.

- In alarm setting mode, the alarm time is placed in the setting area. During the setting procedure, the DOLBY mark flashes on the
display, regardless of the alarm ON / OFF state.

- Pressing the key again during alarm setting terminates the setting procedure and causes the set time to be placed in the setting area
and serves for clock setting mode. The DOLBY display indication depends on the alarm ON / OFF state.

- In clock setting mode, the time of the currently selected clock number is placed in the setting area.
During the setting procedure, the colon of the time display stops flashing and stays constantly lit, but the clock count continues.

- Pressing the key once more during clock setting cause the currently set time to be placed in the area for the currently selected clock
number. By resetting the minute figures the seconds area is cleared to 00, count restart, and the colon of the time display starts flashing.

- 12-hour notation; colon
24-hour notation; JAZZ, not colon

Tuner mode / tape mode / power off mode

- Alarm ON / OFF key
When alarm is turned ON, DOLBY mark on display is shown.
When alarm is turned OFF, DOLBY mark on display is out.

- Alarm sound is output from BUZZER terminal as 3.125 kHz pulse for 5 minutes. Pressing this key again during alarm output stops the
alarm sound. Last alarm time setting is retained.

- Alarm sound is output in all modes.

- Alarm sound is output to when the displayed time matches the alarm set time regardless of the clocks 1 and 2.

- This key serves for power on / off control and band switching. The operation sequence is as follows.
Power OFF (TAPE) -> AM band -> FM I band -> FM II band -> Power OFF (TAPE).

Releasing the key within less than 2 seconds switches to the next band.

- Power OFF or TAPE is determined by the tape input port.

- This key serves for toggling between FM mono and FM stereo. It is valid in the FM I and FM II bands. FM stereo <--> FM mono.

- When FM stereo is set
When STEREO is ”High”, ”FM STEREO” flashes.
When STEREO is ”Low”, ”FM STEREO” is lit.

- When FM mono is set, ”Low” is output from the FM MN / ST port.

- When no FM band is set, ”Low” is output from the FM MN / ST port.

- This function is available in tuner mode except for the destination area East Europe. To perform switching, the two keys shown in the
table below must be pressed together for 7 seconds or more.

” Memo + ” + ” UP ” US JP --

- When switching is confirmed, and if a different area was selected, preset numbers 1 -- 10 in all bands will be set to the default values for
the new area, and the lowest frequency in the currently selected band is received.

- When switching is confirmed, the following indication is shown for 1 second in the 7-segment display area:
Japan : JP USA : US Europe : EU

- Selects whether clock function is enabled or not.

- During initialization, data are read and the setting is made as follows.
OFF : Clock function enabled (12-hour notation; 2 time settings possible)
ON : Clock function disabled

- Selects whether alarm function is enabled or not.

- During initialization, data are read and the setting is made as follows. If the clock is disabled, the alarm function is also not available.
OFF : Alarm function enabled
ON : Alarm function disabled

No.6633-6/10

LC72348G-9970

Key Operation Description

- Selects 12/24-hour display.

12 / 24 Sel

(Diode switch)

LCD Check

(Diode switch)

Key Matrix

* PB3 output line is Diode switch.
* When CLOCK Sel is turned OFF, alarm function enabled can be selected and 12/24-hour display can’t be selected.

Reception Frequencies

Destination area : Japan (A1 = ”High”, A2 = ”High”)

Area BAND Reception Frequency Step
JPN AM 531--1629kHz 9kHz 3kHz +450kHz

USA AM 530--1710kHz 10kHz 5kHz +450kHz

EUR AM 531--1602kHz 9kHz 3kHz +450kHz

- During initialization, data are read and the setting is made as follows. If the clock is disabled, 12/24-hour display is also not available.
OFF : 12-hour display (Initial display : 12:00)
ON : 24-hour display (Initial display : 0:00) JAZZ, not colon

- Selects whether LCD check is performed or not.

- During initialization, data are read and the setting is made as follows.
OFF : LCD check disabled
ON : LCD check enabled

- Display check is performed after reading diode switches. All display elements are turned on for 3 seconds,and the display then switches
to normal operation.

PA0 input PA1 input PA2 input PA3 input
PB0 output Up / Hour Down / Min FM MN / ST Memo1
PB1 output Memo2 Memo3 Memo+ / Time set Memo5
PB2 output FUNC ALARM Memo4
PB3 output Clock Sel ALARM Sel 12/24 Sel LCD Check

Reference Intermediate

frequency frequency

FM I 76.0--90.0 / 90.0--108.0MHz 100 / 50kHz 12.5kHz --10.7MHz

FM II 76.0--90.0 / 90.0--108.0MHz 100 / 50kHz 12.5kHz --10.7MHz

FM I 87.5--108.1MHz 200kHz 12.5kHz --10.7MHz

FM II 87.5--108.1MHz 200kHz 12.5kHz --10.7MHz

FM I 87.5--108.0MHz 50kHz 12.5kHz --10.7MHz

FM II 87.5--108.0MHz 50kHz 12.5kHz --10.7MHz

Destination area : USA (A1 = ”High”, A2 = ”Low”), Europe (A1 = ”Low”, A2 = ”High”)

Area BAND Reception Frequency Step
JPN AM 531--1629kHz 9kHz 3kHz +450kHz

FM I 76.0--90.0 / 90.0--108.0MHz 100 / 50kHz 12.5kHz +10.7MHz

FM II 76.0--90.0 / 90.0--108.0MHz 100 / 50kHz 12.5kHz +10.7MHz

USA AM 530--1710MHz 10kHz 5kHz +450kHz

FM I 87.5--108.1MHz 200kHz 12.5kHz +10.7MHz

FM II 87.5--108.1MHz 200kHz 12.5kHz +10.7MHz

EUR AM 531--1602kHz 9kHz 3kHz +450kHz

FM I 87.5--108.0MHz 50kHz 12.5kHz +10.7MHz

FM II 87.5--108.0MHz 50kHz 12.5kHz +10.7MHz

Reference Intermediate

frequency frequency

Destination area : East Europe (A1 = ”Low”, A2 = ”Low”)

Area BAND Reception Frequency Step

AM 531--1602kHz 9kHz 3kHz +450kHz

EAST EUR FM I 65.0--74.0MHz 10kHz 5kHz +10.7MHz

FM II 87.5--108.0MHz 50kHz 12.5kHz +10.7MHz

Reference Intermediate

frequency frequency

No.6633-7/10

LC72348G-9970

Initial Reception Frequencies

Area : Japan

12345678910

AM 531 630 999 1440 1629 531 630 999 1440 1629

FM I 76.00 80.00 90.00 100.00 108.00 76.00 80.00 90.00 100.00 108.00

FM II 76.00 80.00 90.00 100.00 108.00 76.00 80.00 90.00 100.00 108.00

Area : USA

12345678910

AM 530 630 1000 1440 1710 530 630 1000 1440 1710

FM I 87.50 93.10 98.10 103.10 108.10 87.50 93.10 98.10 103.10 108.10

FM II 87.50 93.10 98.10 103.10 108.10 87.50 93.10 98.10 103.10 108.10

Area : Europe

12345678910

AM 531 630 999 1440 1602 531 630 999 1440 1602

FM I 87.50 93.10 98.10 103.10 108.00 87.50 93.10 98.10 103.10 108.00

FM II 87.50 93.10 98.10 103.10 108.00 87.50 93.10 98.10 103.10 108.00

Area : East Europe

12345678910

AM 531 630 999 1440 1602 531 630 999 1440 1602

FM I 65.00 67.00 70.00 72.00 74.00 65.00 67.00 70.00 72.00 74.00

FM II 87.50 93.00 98.00 103.00 108.00 87.50 93.00 98.00 103.00 108.00

* AM band unit : kHz, FM band unit : MHz

LCD Panel Description

LCD Matrix

segment PIN No. COM1 COM2 COM3 COM4

S1 44 Low AM(1) FM I FM II
S2 43 Mid T mark 1 mark
S3 42 1a 1f 1g 1e
S4 41 colon 1b 1c 1d
S5 40 Full 2f 2e
S6 39 2a 2g 2d
S7 38 HOLD 2b 2c JAZZ
S8 37 TUNED 3f 3e dot mark

S9 36 3a 3g 3d
S10 35 AM(2) 3b 3c
S11 34 PM 4f 4e
S12 33 4a 4g 4d DOLBY
S13 32 pre 1 4b 4c PRESET
S14 31 5a 5f 5g 5e
S15 30 FM STEREO 5b 5c 5d

*JAZZ mark is used to the colon of the 24-hour display.
*DOLBY mark is used to display the ALARM on / off state.

LCD Panel

HOLD TUNED

AM PM FM STEREO

AM
FMI
FMII

JAZZ

Low Mid Full

PRESET

ILC00002

No.6633-8/10

Sample Application Circuit

LC72348G-9970

+3V

100µH

FM OSC

AM OSC

12V

2.7kΩ

VT

+

+

10µF

0.1µF

0.47µF

0.1µF

33kΩ

+

470µF
100pF
100pF

10kΩ
100kΩ

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

S2S3S4S5S6S7S8S9S10

S1

COM4

COM3

COM2

COM1

48

47 46 45 44 43 42 41 40 39 38 37 36 35 34 33

DBR4

49

DBR3

50

DBR2

51

DBR1

RES

TU

VDD
FMIN
AMIN

VSS

EO

AIN
AOUT
AGND

TEST1

XIN

75kHz

X'tal

52
53
54
55
56
57
58
59
60
61
62
63
64

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

XOUT

TEST2

KEY1N3

KEY1N2

KEY1N1

KEY1N0

KEYOUT3

KEYOUT2

KEYOUT1

KEYOUT0

BAND

FM MN / ST

10µF

+

+

NC

S11

NC

AREA1

17 18 19 20

S12

S13

32

S14

31

S15

30

SD IN

29

TUNER OUT

28

MUTE

27

HOLD

26

POWER

25

VSS

24

STEREO

23

PWR CHECK3

22

PWR CHECK2

21

BUZZER

20

NC

19
18

NC
TAPE

17

AREA0

1.5kΩ

680k

1MΩ

47kΩ

330kΩ

HOLD

SW

680k

OFF
ON

11pF 11pF

LCD

Check

M4

M5

M1

or

12/24

Sel

M+

FM

MN/S

R1 33

R1 33

R1 33

BUZZER

R1 33

MUTE

STEREO IN

VCC

SD IN

TUNER OUT

AREA1 AREA0 Area

R2 R3

East Europe

ALARM

CLOCK

Sel

Sel

FUNC

ALARM

M3

M2

Down

Up

/Min

/Hour

T

VT

BAND

FM OSC

AM OSC

TAPE+B

FM MN / ST

R2 R4 Europe
R1 R3 USA
R1 R4 Japan

ILC00005

No.6633-9/10

LC72348G-9970

Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.

SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.

In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.

No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co. , Ltd.

Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.

Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.

This catalog provides information as of August, 2000. Specifications and information herein are subject to
change without notice.

No.6633-10/10

PS