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

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