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
AV
DD
V
DD
LCD DRIVER
V
LCD
IF
FM
IN
AMP
PRESCALER
DIV. BY 10
FREQ
OFFSET
AM
I
N
COUNTER
CLKFREQ-SEL
AMP
RST
AM/FM_SEL
IF
70K
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
OSC
OUT
AL DISP
PR SET
TEST
AV
SS
V
SS
OSC
IN