UTC 6610
FREQUENCY AND CLOCK
DISPLAY DRIVER
The UTC 6610 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.
CMOS
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-48-12脳12-0.8
BLOCK DIAGRAM
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
COM1
COM2
COM3
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
AV
DD
V
DD
LCD DRIVER
FM
IN
AM
IN
AM/FM-SEL
IF70K
RANGE
AMP
AMP
PRESCALER
DIV.BY 10
IF
FREQ
OFFSET
COUNTER
V
LCD
CLKFREQ-SEL
RST
TIMMING CTL
M
U
X
CLOCK
AL-SIG
AL-OUT
UTC
UNISONIC TECHNOLOGIES CO. LTD
MIN SET
AL DISP
AL ON/OFF
TEST CLK
OSC IN
AV
SS
V
SS
OSC OUT
PR SET
TEST
1
QW-R502-011,A