Silan
Semiconductors
SC3610
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
1
FREQUENCY AND CLOCK
DISPLAY DRIVER
DESCRIPTION
The SC3610 is a frequency and clock display driver used for
displaying FM/AM radio frequency or a 12 hour alarm clock. By using
CMOS technology, it consumes very low power in clock display
mode.
FEATURES
* FM input with pre-scalar for radio frequency up to 150 MHz
* AM input for radio frequency up to 30 MHz
* 3 common, 13 segment, 1/3 bias LCD display drivers which
supports 4 digits LCD display
* On chip oscillator for external 32.768kHz crystal
* 10.7 MHz / 70 kHz I.F. frequency offset for FM signal and 455kHz
I.F. frequency offset for AM signal
* Internal real time clock in 12 hour display mode
* Selectable clock or frequency display
* 1.8V to 3.3V supply voltage
QFP-48-12x12-0.8
ORDERING INFORMATIOM
SC3610A
QFP-48-12x12-0.8 Package
SC3610B
QFP-44-10x10-0.8 Package
SC3610C
SC3610D
COB Package (QFP Type)
COB Package (SOP Type)
BLOCK DIAGRAM
AMP
PRESCALER
DIV. BY 10
AMP
IF
OFFSET
FREQ
COUNTER
TIMMING CTL
M
U
X
CLOCK
LCD DRIVER
RANGE
IF
70K
AM/FM_SEL
AM
I
N
FM
IN
AV
DD
V
DD
CO
M
1
CO
M
2
CO
M
3
SEG
0
RST
V
LCD
CLKFREQ-SEL
AL-SIG
AL-OUT
AL
O
N
/
O
F
F
AL
D
I
SP
M
I
N
SET
OS
C
OUT
PR
SET
OS
C
IN
T
EST
C
L
K
T
EST
V
SS
AV
SS
SEG
1
SEG
2
SEG
3
SEG
4
SEG
5
SEG
6
SEG
7
SEG
8
SEG
9
SEG
1
0
SEG
1
1
SEG
1
2
Silan
Semiconductors
SC3610
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
2
PAD ASSIGNMENT
SC3610A (QFP-48-12x12-0.8 Package)
1
2
3
4
5
6
7
8
9
10 11 12
13
14
15
16
17
18
19
20
21
22
23
24
36 35 34 33 32 31 30 29 28 27 26 25
48
47
46
45
44
43
42
41
40
39
38
37
AM/FM-SEL
AV
SS
SEG0
V
DD
AV
DD
AM
IN
COM2
COM3
COM1
SEG10
AL-DISP
AL-ON/OFF
TEST
TESTCLK
RST
V
LCD
OSC
OUT
OSC
IN
SEG12
SEG11
M
I
N
-
SET
H
R
-SET
NC
C
L
KF
R
E
Q-SEL
V
SS
AL-SI
G
AL-OU
T
IF
70K
NC
RA
NG
E
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
FM
IN
NC
NC
NC
V
SS
NC
NC
V
SS
NC
SC3610A
SC3610B (QFP-44-10x10-0.8 Package)
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
21
22
33 32 31 30 29 28 27 26 25 24 23
44
43
42
41
40
39
38
37
36
35
34
AM/FM-SEL
AV
SS
SEG0
V
DD
AV
DD
AM
IN
COM2
COM3
COM1
SEG10
AL-DISP
AL-ON/OFF
TEST
TESTCLK
RST
V
LCD
OSC
OUT
OSC
IN
SEG12
SEG11
M
I
N
-
SET
HR-
S
E
T
NC
C
L
KF
R
E
Q-SEL
V
SS
AL-SI
G
AL-OU
T
IF
70K
NC
RA
NG
E
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
FM
IN
NC
NC
NC
SC3610B
NC
Silan
Semiconductors
SC3610
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
3
SC3610C (COB Package, QFP Type)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
30 29 28 27 26 25 24 23 22 21
40
39
38
37
36
35
34
33
32
31
AM/FM-SEL
AV
SS
SEG0
V
DD
AV
DD
AM
IN
COM2
COM3
COM1
SEG10
AL-DISP
AL-ON/OFF
TEST
TESTCLK
RST
V
LCD
OSC
OUT
OSC
IN
SEG12
SEG11
M
I
N
-
SET
HR-
S
E
T
NC
C
L
KF
R
E
Q-SEL
V
SS
AL-SI
G
AL-OU
T
IF
70K
NC
RA
NG
E
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
FM
IN
SC3610C
SC3610D (COB Package, SOP Type)
1
2
AM/FM-SEL
SEG0
V
DD
AM
IN
COM2
COM3
COM1
SEG10
AL-DISP
AL-ON/OFF
RST
V
LCD
OSC
OUT
OSC
IN
SEG12
SEG11
MIN-SET
HR-SET
NC
CLKFREQ-SEL
V
SS
AL-SIG
AL-OUT
IF
70K
NC
RANGE
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
FM
IN
SC3610D
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
Silan
Semiconductors
SC3610
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
4
ABSOLUTE MAXIMUM RATING
Characteristic
Symbol
Value
Unit
Supply Voltage
V
DD
0.5 ~ 7.0
V
Input or Output Voltage
V
IN,
V
OUT
-0.5
~
V
DD
+0.5
V
Storage Temperature
T
STG
-40 ~ +125
C
ESD Protection
-2 ~ + 2
kV
ELECTRICAL CHARACTERISTICS
(V
DD
= 3V, Temp = 25
C , unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Voltage
V
DD
I
DD1
frequency mode
--
1.8
3.6
mA
VDD Supply Current Consumption
I
DD2
clock mode
--
55
110
A
Internal LCD Reference Voltage
V
LCD
respect to VDD
2
2.25
2.5
V
LCD Drive Current consumption
I
LCD
all segments on
--
--
5
A
LCD Frame Frequency
F
LCD
--
32
--
Hz
Oscillator Frequency
F
OSC
--
32.768
--
kHz
FM Input Frequency
F
FM
V
IN
= 0.3 V
PP
11.0
--
150
MHz
AM Input Frequency
F
AM
V
IN
= 0.3 V
PP
0.5
--
30
MHz
FM Input impedance
R
IN(FM)
F
FM
=120MHz
--
150
--
AM Input impedance
R
IN(AM)
F
AM
=12MHz
--
2.0
--
k
Open Drain Low Level Voltage
V
OL
oc V
DD
=3V, Isink =10mA
--
--
0.5
V
Low Level Input Voltage
V
IL
--
--
0.3V
DD
V
High Level Input Voltage
V
IH
0.7V
DD
--
--
V
Low Level Output Voltage,
V
OL
V
DD
=3V, Isink=4mA
--
--
0.4
V
High Level Output Voltage
V
OH
V
DD
=3V, I
SOURCE
=-4mA
V
DD
-0.5
--
--
V
Schmitt Trigger Positive Threshold
Vt+
V
DD
=3V
--
2.3
2.4
V
Schmitt Trigger Negative Threshold
Vt-
V
DD
=3V
0.6
0.9
--
V
Schmitt Trigger Input Resistance
R
IN+/-
pull-up or pull-down
--
75
--
k
Reset Pin pull-up Resistance
R
IN-UP
--
750
--
k
Silan
Semiconductors
SC3610
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
5
PAD DESCRIPTION
Pad
No.
Symbol
I/O
Description
1
VDD
--
Supply voltage
2 ~ 4
COM1 ~ COM3
OL
LCD common drive signal for driving LCD display
5 ~ 17
SEG0 ~ SEG12
OL
LCD segment drive signal for driving LCD display
18
OSCI
I
32.768 kHz crystal oscillator input pin
19
OSCO
O
32.768 kHz crystal oscillator output pin
20
V
LCD
O
LCD Supply voltage. Connects a 0.1
F capacitor between this pin and
V
SS
21
RST
ISU
Active low power-on reset with pull-up resistor of approx.750k
22
TESTCLK
ISD
For testing use only with internal pull-down
23
TEST
ISD
When high, the chip will enter test mode
24
AL-ON/OFF
ISU
Alarm function on or off in toggle mode. Internal pull up input
25
AL-DISP
ISU
When pressed, will display the alarm time. Internal pull up input
26
MIN-SET
ISU
Minute setting for time and alarm(together with AL-DISP). Internal pull
up.
27
HR-SET
ISU
Hour setting for time and alarm(together with AL-DISP). Internal pull up.
28
NC
--
No connection
29
CLKFREQ-SEL
ISD
Clock or frequency display mode. Internal pull-down input. When low,
clock will be displayed. When high, radio frequency will be displayed.
30
V
SS
--
Ground pin
31
AL-SIG
OD10
Open drain alarm signal output, active low.
32
AL-OUT
O4
Alarm output at 1kHz with 0.2 sec on and 0.2 sec off, push-pull output.
33
IF70k
ISD
Select IF offset in FM mode. H:70kHz, L:10.7kHz
34
NC
--
No connection
35
RANGE
ISU
For frequency counting mode only, Range = H or L, gate time = 0.1S
36
AM/FM-SEL
ISU
AM/FM mode selection. High for AM and low for FM, internal pull-up.
37
AV
DD
--
Analog Supply voltage
38
AM
IN
--
AM signal input, 0.3V peak to peak, 500kHz to 30MHz.
39
AV
SS
--
Analog Ground pin.
40
FM
IN
--
FM signal input, 0.3V peak to peak, 11-150MHz.
Note:
I
Oscillator Input Pad
O
Oscillator Output Pad
ISU
Schmitt trigger input pad with pull-up
OD10
Open Drain with 10mA output driving
ISD
Schmitt trigger input pad with pull-down
O4
Push-pull output pad with 4mA driving
OL
LCD segment and common output pad
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