SILAN SC3610C

Silan
Semiconductors SC3610
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
QFP-48-12x12-0.8
* 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
ORDERING INFORMATIOM
I.F. frequency offset for AM signal
* Internal real time clock in 12 hour display mode
* Selectable clock or frequency display
SC3610A
QFP-48-12x12-0.8 Package
SC3610B
QFP-44-10x10-0.8 Package
SC3610C
COB Package (QFP Type)
SC3610D
COB Package (SOP Type)
* 1.8V to 3.3V supply voltage
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
COM2
COM1
VDD
AVDD
BLOCK DIAGRAM
LCD DRIVER
VLCD
IF
FMIN
PRESCALER
DIV. BY 10
AMP
FREQ
COUNTER
OFFSET
AMI
N
CLKFREQ-SEL
AMP
AM/FM_SEL
RST
IF70K
AL-SIG
CLOCK
M
U
X
AL ON/OFF
AL DISP
MIN SET
PR SET
OSCIN
OSCOUT
AL-OUT
TESTCLK
TEST
VSS
TIMMING CTL
AVSS
RANGE
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
1
2000.12.31
Silan
Semiconductors SC3610
PAD ASSIGNMENT
NC
MIN-SET
HR-SET
NC
CLKFREQ-SEL
VSS
AL-SIG
AL-OUT
IF70K
NC
NC
RANGE
SC3610A (QFP-48-12x12-0.8 Package)
36 35 34 33 32 31 30 29 28 27 26 25
AM/FM-SEL 37
24 AL-DISP
AVDD 38
23 AL-ON/OFF
AMIN 39
22 TEST
AVSS 40
21 TESTCLK
FMIN 41
20 RST
SC3610A
VDD 42
19 VSS
VSS 43
18 VLCD
COM1 44
17 OSCOUT
COM2 45
16 OSCIN
COM3 46
15 SEG12
SEG0 47
14 SEG11
NC 48
13 NC
NC
SEG10
10 11 12
SEG9
9
SEG8
8
SEG7
7
SEG6
6
SEG5
5
SEG4
NC
4
SEG3
3
SEG2
2
SEG1
1
NC
MIN-SET
HR-SET
NC
CLKFREQ-SEL
VSS
AL-SIG
AL-OUT
IF70K
NC
RANGE
SC3610B (QFP-44-10x10-0.8 Package)
33 32 31 30 29 28 27 26 25 24 23
NC 34
22 AL-DISP
AM/FM-SEL 35
21 AL-ON/OFF
AVDD 36
20 TEST
AMIN 37
AVSS 38
19 TESTCLK
18 RST
SC3610B
FMIN 39
17 VLCD
VDD 40
16 OSCOUT
COM1 41
15 OSCIN
COM2 42
14 SEG12
COM3 43
13 SEG11
3
4
5
6
7
8
9
10 11
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
2
SEG1
12 NC
1
NC
SEG0 44
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2
2000.12.31
Silan
Semiconductors SC3610
MIN-SET
HR-SET
NC
CLKFREQ-SEL
VSS
AL-SIG
AL-OUT
IF70K
NC
RANGE
SC3610C (COB Package, QFP Type)
30 29 28 27 26 25 24 23 22 21
AM/FM-SEL 31
20 AL-DISP
AVDD 32
19 AL-ON/OFF
AMIN 33
18 TEST
AVSS 34
17 TESTCLK
FMIN 35
16 RST
SC3610C
VDD 36
15 VLCD
COM1 37
14 OSCOUT
COM2 38
13 OSCIN
COM3 39
12 SEG12
3
4
5
6
7
8
9
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
10
SEG10
2
SEG2
11 SEG11
1
SEG1
SEG0 40
SC3610D (COB Package, SOP Type)
COM1
1
36
VDD
COM2
2
35
FMIN
COM3
3
34
VSS
SEG0
4
33
AMIN
SEG1
5
32
AM/FM-SEL
SEG2
6
31
RANGE
SEG3
7
30
NC
SEG4
8
29
IF70K
SEG5
9
28
AL-OUT
SEG6
10
27
AL-SIG
SEG7
11
26
CLKFREQ-SEL
SEG8
12
25
NC
SEG9
13
24
HR-SET
SEG10
14
23
MIN-SET
SEG11
15
22
AL-DISP
SEG12
16
21
AL-ON/OFF
OSCIN
17
20
RST
OSCOUT
18
19
VLCD
SC3610D
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
3
2000.12.31
Silan
Semiconductors SC3610
ABSOLUTE MAXIMUM RATING
Characteristic
Supply Voltage
Input or Output Voltage
Storage Temperature
Symbol
Value
Unit
VDD
0.5 ~ 7.0
V
VIN, VOUT
-0.5 ~ VDD+0.5
V
TSTG
-40 ~ +125
°C
-2 ~ + 2
kV
ESD Protection
ELECTRICAL CHARACTERISTICS
Parameter
Supply Voltage
Symbol
(VDD = 3V, Temp = 25°C , unless otherwise specified)
Test Conditions
Min
Typ
Max
Unit
VDD
IDD1
frequency mode
--
1.8
3.6
mA
IDD2
clock mode
--
55
110
µA
Internal LCD Reference Voltage
VLCD
respect to VDD
2
2.25
2.5
V
LCD Drive Current consumption
ILCD
all segments on
--
--
5
µA
LCD Frame Frequency
FLCD
--
32
--
Hz
Oscillator Frequency
FOSC
--
32.768
--
kHz
FM Input Frequency
FFM
VIN = 0.3 VPP
11.0
--
150
MHz
AM Input Frequency
FAM
VIN = 0.3 VPP
0.5
--
30
MHz
--
150
--
Ω
VDD Supply Current Consumption
FM Input impedance
RIN(FM) FFM =120MHz
AM Input impedance
RIN(AM) FAM =12MHz
--
2.0
--
kΩ
Open Drain Low Level Voltage
VOLoc VDD=3V, Isink =10mA
--
--
0.5
V
Low Level Input Voltage
VIL
--
--
0.3VDD
V
High Level Input Voltage
VIH
0.7VDD
--
--
V
Low Level Output Voltage,
VOL
VDD=3V, Isink=4mA
High Level Output Voltage
VOH
VDD=3V, ISOURCE=-4mA
Schmitt Trigger Positive Threshold
Vt+
Schmitt Trigger Negative Threshold
Vt-
Schmitt Trigger Input Resistance
RIN+/-
Reset Pin pull-up Resistance
RIN-UP
--
--
0.4
V
VDD-0.5
--
--
V
VDD=3V
--
2.3
2.4
V
VDD=3V
0.6
0.9
--
V
pull-up or pull-down
--
75
--
kΩ
--
750
--
kΩ
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
4
2000.12.31
Silan
Semiconductors SC3610
PAD DESCRIPTION
Pad
No.
1
Symbol
I/O
VDD
--
Description
Supply voltage
2~4
COM1 ~ COM3
OL
5 ~ 17
SEG0 ~ SEG12
OL
LCD common 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
VLCD
O
LCD segment drive signal for driving LCD display
LCD Supply voltage. Connects a 0.1 µF capacitor between this pin and
VSS
21
RST
ISU
Active low power-on reset with pull-up resistor of approx.750kΩ
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
27
HR-SET
ISU
28
NC
--
29
CLKFREQ-SEL
ISD
Minute setting for time and alarm(together with AL-DISP). Internal pull
up.
Hour setting for time and alarm(together with AL-DISP). Internal pull up.
No connection
Clock or frequency display mode. Internal pull-down input. When low,
clock will be displayed. When high, radio frequency will be displayed.
30
VSS
--
31
AL-SIG
OD10
32
AL-OUT
O4
33
IF70k
ISD
34
NC
--
35
RANGE
ISU
36
AM/FM-SEL
ISU
37
AVDD
--
38
AMIN
--
AM signal input, 0.3V peak to peak, 500kHz to 30MHz.
39
AVSS
--
Analog Ground pin.
40
FMIN
--
FM signal input, 0.3V peak to peak, 11-150MHz.
Note:
Ground pin
Open drain alarm signal output, active low.
Alarm output at 1kHz with 0.2 sec on and 0.2 sec off, push-pull output.
Select IF offset in FM mode. H:70kHz, L:10.7kHz
No connection
For frequency counting mode only, Range = H or L, gate time = 0.1S
AM/FM mode selection. High for AM and low for FM, internal pull-up.
Analog Supply voltage
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
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
5
2000.12.31
Silan
Semiconductors SC3610
FUNCTIONAL DESCRIPTION
1. RADIO FREQUENCY DISPLAY OPERATION (DTS MODE):
The FM and AM local oscillator output generated from the external RF receiver enters a high gain input
comparator through the FMIN and the AMIN pins respectively. The FM signal then routes through a divide-by-10
dynamic pre-scalar. Depending on the state of the AM/FM-SEL pin, the FM and AM signal will be selected and
enters the IF frequency offset block. Depending on the FM/AM selection, 10.7MHz/70kHz or 455kHz I.F.
frequency will be subtracted or added from the input signal.
LCD Display Range:
Mode
Range
Step
Resolution
FM
H
L
11.00 MHz to 99.99 MHz
11.00 MHz to 149.9 kHz
Display range (on LCD)
10kHz
100kHz
1kHz
10kHz
AM
H
L
500 kHz to 9999 kHz
0.5 MHz to 29.99 MHz
1kHz
10kHz
100kHz
1kHz
Note:1 When counter frequency overflow, MSB will not be displayed.
IF Offset for different application:
IF70K
AMFMSEL
IF Offset
Operation
0
0
+10.7MHz
Display FM input frequency 10.7MHz
0
1
+455kHz
Display AM input frequency 455kHz
1
0
-70 kHz*
Display FM input frequency +70kHz
1
1
+455 kHz
Display AM input frequency 455kHz
* Suitable to use with Silan SC1088
2. CLOCK FUNCTION:
1) The clock will be advanced in the following flow:
PM 12:00 → PM 11:59 → AM 12:00 → 11:59
2) The [:] sign is the second indicator and will blink at a rate of 2Hz
3) TIME SETTING:
--
Pressing the keys combination of [TIME SET] [HR SET] or [TIME SET] [MIN SET] will enter the time
setting mode.
--
One digit will be incremented after entering the alarm setting mode. Keep pressing the keys
combination for more than 0.5 seconds will make the digit to be advanced at a rate of 2Hz.
4) ALARM TIME SETTING:
--
Pressing the keys combination of [AL DISP] [HR SET] or [AL DISP] [MIN SET] will enter the alarm time
setting mode. The [AL] indicator will turn on and the [:] sign will stop blinking.
--
One digit will be incremented after entering the alarm setting mode. Keep pressing the keys combination
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
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2000.12.31
Silan
Semiconductors SC3610
for more than 0.5 seconds will make the digit to be advanced at a rate of 2Hz.
5) ALARM FUNTION:
--
AL OUT output pin will output an alarm frequency of 1024Hz at 0.2 sec on and 0.2 sec off.
--
AL OUT pin can be used to direct drive a piezo buzzer.
--
When alarm is active, AL OUT output can be disabled by pressing the [AL-ON/OFF] key or it will turn
off automatically after 3 minutes lapse.
--
AL-SIG pin is an open drain output (active low). Once alarm is activated, AL-SIG can be disabled by
pressing [AL-ON/OFF] key or it will turn off automatically after one hour time lapse.
--
When [AL DISP] is pressed, alarm setting time will be displayed on the LCD and the [AL] indicator will
be on.
--
The [AL-ON/OFF] pin will toggle the [
] indicator to turn on of off the alarm function. When the
indicator is on, alarm function is on.
6) 32.768kHz crystal is used for the reference frequency.
7) After Power-on-reset (RST):
--
[HR SET] and [MIN SET] keys will be disabled.
--
[AL-DISP] KEY,[AL-ON/OFF] KEY AND AL-SIG output will be enabled.
3. After POWER-ON-SET(RST):
--
When in clock mode, it will display and start at AM 7:00.
--
When in DTS frequency mode, if CLKFREQ-SEL = High, and FMIN & AMIN pins are grounded, all LCD
segments will be turned on(LCD test mode).
4. LCD pin configuration and 0 to 9 digits segments display configuration.
Pin
Function
1
COM1
COM1
LCD Mapping
--
--
2
COM2
--
COM2
--
3
COM3
--
--
COM3
4
SEG0
kHz
MHz
5
SEG1
AL
DIG1-c
DIG1-b
6
SEG2
DIG1-d
DIG1-g
DIG1-a
7
SEG3
DP1
DIG1-e
DIG1-f
8
SEG4
DP2
DIG2-c
DIG2-b
9
SEG5
DIG2-d
DIG2-g
DIG2-a
10
SEG6
:
DIG2-e
DIG2-f
(To be continued)
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
7
2000.12.31
Silan
Semiconductors SC3610
(Continued)
Pin
Function
11
SEG7
AM
LCD Mapping
DIG3-c
DIG3-b
12
SEG8
DIG3-d
DIG3-g
DIG3-a
13
SEG9
--
DIG3-e
DIG3-f
14
SEG10
FM
DIG4-c
DIG4-b
15
SEG11
DIG4-d
DIG4-g
DIG4-a
16
SEG12
PM
DIG34-e
DIG4-f
PIN16
PIN1
a
COL
f
4
3
2
DP2
S1
gb
e 1 c
DP1 d
LCD TIMING WAVEFORMS
One Cycle
One Cycle
VDD
COM1
VLCD 1/3
VLCD 2/3
VLCD
VDD
COM2
VLCD 1/3
VLCD 2/3
VLCD
VDD
COM3
VLCD 1/3
VLCD 2/3
VLCD
VDD
SEGX.
VLCD 1/3
VLCD 2/3
VLCD
SEGX.
COM1
ON
SEGX.
COM2
ON
SEGX.
COM3
ON
SEGX.
COM1
ON
SEGX.
COM2
ON
SEGX.
COM3
ON
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
8
2000.12.31
Silan
Semiconductors SC3610
SUGGESTED APPLICATION
500kHz 30MHz
AM Local Oscillator
Frequency
AM Local
Oscillator
Clock
Buffer
11MHz 150MHz
FM Local Oscillator
Frequency
Clock
Buffer
LCD
Radio
Frequency
Receiver
AMIN
SC3610
FMIN
FM Local
Oscillator
TYPEICAL LCD LAYOUT
Counter Only Mode
PIN
COM1
COM2
COM3
1
2
COM1
--
--
--
COM2
--
3
--
--
COM3
4
kHz
MHz
S1
5
AL
1C
1B
6
1D
1G
1A
7
DP1
1E
1F
8
DP2
2C
2B
9
2D
2G
2A
10
COL
2E
2F
11
AM
3C
3B
12
3D
3G
3A
13
--
3E
3F
14
FM
4C
4B
15
4D
4G
4A
16
PM
4E
4F
PIN16
PIN1
COL
DP2
S1
DP1
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
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2000.12.31
Silan
Semiconductors SC3610
Clock and Counter Mode
PIN
COM1
COM2
COM3
1
2
COM1
--
--
--
COM2
--
3
--
--
COM3
4
kHz
MHz
TK
5
TS
1C
1B
6
1D
1G
1A
7
1P
1E
1F
8
2P
2C
2B
2G
2E
2A
2F
11
--
3C
3B
f
e
COL
TK
g
4
b
c
MHz
KHz
3
2P
2
1P
1
TS
d
PIN1
2D
COL
a
AL
PIN21
9
10
s1
D S
SW AM
MW FM
LW PM
AM
MW
12
3D
3G
3A
13
S1
3E
3F
14
FM
4C
4B
15
4D
4G
4A
16
PM
4E
4F
17
AM
18
19
LW
stereo
SW
AL
MW
20
LW
21
SW
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
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2000.12.31
Silan
Semiconductors SC3610
TYPICAL APPLICATION CIRCUITS (1)
4 - DIGITS LCD DISPLAY
10nf
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
10 11 12 13 14 15 16
SEG6
9
SEG5
8
SEG4
7
SEG3
6
SEG2
5
SEG1
4
SEG0
3
COM3
COM1
VDD
2
COM2
1
10uf
AVDD VDD
VLCD
LCD DRIVER
0.1µF
IF
FMIN
AMP
PRESCALER
DIV. BY 10
FREQ
COUNTER
CLKFREQ-SEL
OFFSET
AMI
VDD
4.7kΩ
AMP
N
RST
AM/FM-SEL
1MΩ
0.1µF
IF70K
AL-SIG
20pF
AL DISP
AL ON/OFF
32.768kHz
MIN SET
PR SET
OSCIN
OSCOUT
AL-OUT
TESTCLK
VSS
AVSS
CLOCK
M
U
X
TEST
TIMMING CTL
RANGE
20pF
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
11
2000.12.31
SC3610
Silan
Semiconductors TYPICAL APPLICATION CIRCUITS (2)
3V
VP
0.1µF
82pF
5.6kΩ
10nF
220pF
68pF
0.1µF
reset
0.1µF
680pF
BB910
10kΩ
0.1µF
2pF
0.1µF
470pF
15
3
10kΩ
0.1µF
5
4
MHz
6
FM
7
3
8
COM3
28
2
27
18
AL-SIG
OSCOUT
17
20
RST
0.1µF
OSCIN
AL-OUT
1
9
MIN
30
10
23
COM2
11
VDD
HR
HRSET
24
NC
12
36
FMIN
22
COM1
13
35
AMIN
14
33
VLCD
21
Time
Set
SC3610D
15
19
NC
16
25
26
Alarm
On/Off
Alarm
Set
CLKFREQ AL-ON AL-SEL
/OFF DISP
RANGE
SEG 0
AM/FM-SEL
SEG 1
31
SEG 2
32
SEG 3
VSS
SEG 4
IF70K
SEG 5
34
SEG 6
33
SEG 7
MINSET
SEG 8
9012
10µF
2pF
RUN
0.1µF
5.4k
6k
V2
SEG 9
330kΩ
100kΩ
0.1µH
13
9018
10
IF Limiter
-1
Loop filter
Allpass
Filter
AF
Demodulator
AF
MUTE
Audio Out
SEG 10
470kΩ
9013
100kΩ
9
VP
SC1088
6k
5k
330pF
3.9nF
8
V2
V2
V3
2
10kΩ
SEG 11
10kΩ
9018
180pF
6
7
2pF
220Ω
9013
VCO
R
S
&
Mixer 2.2k 2.2k
3.3nF
20kΩ
V1
11
12
5
4
14
16
Search
Tuning
1
1.8nF
Buzzer
32768Hz
12
SEG 12
2000.12.31
Rev: 1.0
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Silan
Semiconductors SC3610
CHIP TOPOGRAPHY
35
34 33
32
31
30
29 28
27
26
36
25
37
24
38
23
39
22
40
21
1
20
2
19
3
18
4
17
5
16
6
7
8
9
10
11
12 13
14
15
Chip Size: 2.72mmx2.88mm
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
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2000.12.31
Silan
Semiconductors SC3610
PAD COORDINATES (Unit: µm)
PAD NO.
X
Y
PAD NO.
X
Y
1
-70
925
21
70
-925
2
-205
925
22
205
-925
3
-340
925
23
340
-925
4
-475
925
24
475
-925
5
-615
925
25
610
-925
6
-890
615
26
890
-615
7
-890
475
27
890
-475
8
-890
340
28
890
-340
9
-890
205
29
890
205
10
-890
70
30
890
-70
11
-890
-70
31
890
70
12
-890
-205
32
890
205
13
-890
-340
33
890
340
14
-890
-475
34
890
475
15
-890
-615
35
890
610
16
-615
-925
36
615
925
17
-475
-925
37
475
925
18
-340
-925
38
340
925
19
-205
-925
39
205
925
20
-70
-925
40
70
925
Note: The original point of the coordinate is the die center.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
14
2000.12.31
Silan
Semiconductors SC3610
PACKAGE OUTLINE
QFP-48-12x12-0.8
UNIT: mm
17.20+-0.40
2.7
2.6+-0.2
12.0+-0.2
36
25
1.6
48
17.2+-0.4
24
12.0+-0.2
37
13
1
12
1.8+-0.2
0.30+-0.06
0.15+-0.05
0.8
UNIT: mm
QFP-44-10x10-0.8
2.7
13.6+-0.4
10.0+-0.2
44
12
11
1.0
10.0+-0.2
23
22
13.6+-0.4
1.8+-0.2
33
34
1
0.8+-0.2
0.35+-0.10
0.8
0.15+-0.05
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
15
2000.12.31
SC3610
COB PACKAGE (QFP TYPE)
UNIT: mm
23.0+-1.0
23.0+-1.0
10.0 MAX
2.0 MAX
1.27
1.778
0.7
UNIT: mm
COB PACKAGE (SOP TYPE)
23.0+-1.0
2.0 MAX
7.0 MAX
10.0 +- 0.5
Silan
Semiconductors 1.27
0.5
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
16
2000.12.31