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Silan Semiconductors |
SC3610
FM/AM TUNER FREQUENCY & 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
QFP44-10 x10-0.8
ORDERING INFORMATIOM
BLOCK DIAGRAM
FMIN
AMI
N
AM/FM_SEL
IF70K
RANGE
AMP
AMP
PRESCALER
DIV. BY 10
TIMMING CTL
M
U
X
LCD DRIVER
IF
FREQ
OFFSET
COUNTER
CLOCK
VLCD
CLKFREQ-SEL
RST
AL-SIG
AL-OUT
ABSOLUTE MAXIMUM RATING
Characteristics
Supply Voltage
Input or Output Voltage
Storage Temperature
ESD Protection
Symbol
VDD
VIN, VOUT
TSTG
Value
0.5 ~ 7.0
-0.5 ~ VDD+0.5
-40 ~ +125
-2 ~ + 2
Unit
V
V
°C
kV
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.4 2007.04.29
Page 1 of 13
SC3610
ELECTRICAL CHARACTERISTICS (VDD = 3V, Temp = 25°C, unless otherwise specified)
Characteristics
Supply Voltage
VDD Supply Current Consumption
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
Symbol
Test Conditions
VDD
IDD1 frequency mode
IDD2 clock mode
VLCD respect to VDD
ILCD all segments on
FLCD
FOSC
FFM VIN = 0.3 VPP
FAM VIN = 0.3 VPP
RIN(FM) FFM =120MHz
RIN(AM) FAM =12MHz
VOLoc VDD=3V, Isink =10mA
VIL
VIH
VOL VDD=3V, Isink=4mA
VOH VDD=3V, ISOURCE=-4mA
Vt+ VDD=3V
Vt- VDD=3V
RIN+/- pull-up or pull-down
RIN-UP
Min. Typ. Max. Unit
-- 1.8
-- 55
2 2.25
-- --
-- 32
-- 32.768
11.0 --
0.5 --
-- 150
-- 2.0
-- --
-- --
0.7VDD --
-- --
VDD-0.5 --
-- 2.3
0.6 0.9
-- 75
-- 750
3.6
110
2.5
5
--
--
150
30
--
--
0.5
0.3VDD
--
0.4
--
2.4
--
--
--
mA
µA
V
µA
Hz
kHz
MHz
MHz
Ω
kΩ
V
V
V
V
V
V
V
kΩ
kΩ
PAD ASSIGNMENT
SC3610 (QFP-44-10x10-0.8 Package)
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
SC3610
22 AL-DISP
21 AL-ON/OFF
20 TEST
19 TESTCLK
18 RST
17 VLCD
16 OSCOUT
15 OSCIN
14 SEG12
13 SEG11
12 NC
1 2 3 4 5 6 7 8 9 10 11
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.4 2007.04.29
Page 2 of 13
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