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 6 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 9 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 10 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 13 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