UTC-IC UTC6610

UTC 6610
CMOS IC
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.
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-48-12×12-0.8
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
SEG3
SEG4
SEG5
SEG6
COM3
SEG0
SEG1
SEG2
COM1
COM2
VDD
AVDD
BLOCK DIAGRAM
LCD DRIVER
FMIN
AMP
AMIN
AM/FM-SEL
IF70K
AMP
PRESCALER
DIV.BY 10
VLCD
COUNTER
CLKFREQ-SEL
RST
AL-SIG
AL-OUT
PR SET
OSC IN
MIN SET
AL DISP
AL ON/OFF
CLOCK
M
U
X
OSC OUT
TEST
VSS
AVSS
TIMMING CTL
TEST CLK
RANGE
UTC
IF
FREQ
OFFSET
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UTC 6610
CMOS IC
MIN-SET
NC
HR-SET
NC
VSS
CLKFREQ-SEL
AL-SIG
AL-OUT
NC
IF70K
RANGE
NC
PAD ASSIGNMENT
QFP-48- 12×12-0.8 PACKAGE
36 35 34 33 32 31 30 29 28 27 26 25
24 AL DISP
AM/FM-SEL 37
AVDD 38
23 AL ON/OFF
AMIN 39
22 TEST
AVSS 40
21 TEST CLK
FMIN 41
20 RST
VDD 42
19 VSS
6610
VSS 43
18 VLCD
COM1 44
17 OSCOUT
COM2 45
16 OSC IN
COM3 46
15 SEG12
14 SEG11
SEG0 47
4
5
6
7
8
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
AL-SIG
VSS
CLKFREQ-SEL
NC
9 10
11 12
NC
3
SEG10
2
SEG3
NC
1
SEG2
13 NC
SEG1
NC 48
MIN-SET
NC
AL-OUT
23
IF70K
24
RANGE
33 32 31 30 29 28 27 26 25
NC
HR-SET
QFP-44- 10×10-.8 PACKAGE
22 AL DISP
NC 34
AM/FM-SEL 35
21 AL ON/OFF
AVDD 36
20 TEST
AMIN 37
19 TEST CLK
AVSS 38
18 RST
6610
FMIN 39
17 VLCD
VDD 40
16 OSCOUT
COM1 41
15 OSC IN
COM2 42
14 SEG12
COM3 43
13 SEG11
SEG0 44
UTC
3
4
5
6
7
8
9 10
11
NC
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG10
SEG9
2
SEG1
12 NC
1
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UTC 6610
CMOS IC
MIN-SET
HR-SET
NC
VSS
CLKFREQ-SEL
AL-SIG
AL-OUT
NC
IF70K
RANGE
COB PACKAGE,QFP TYPE
30 29 28 27 26 25 24 23 22 21
20 AL DISP
AM/FM-SEL 31
AVDD 32
19 AL ON/OFF
AMIN 33
18 TEST
AVSS 34
17 TEST CLK
FMIN 35
16 RST
6610
VDD 36
15 VLCD
COM1 37
14 OSCOUT
COM2 38
13 OSC IN
COM3 39
12 SEG12
SEG0 40
5
6
7
SEG1
SEG3
SEG4
SEG5
SEG6
SEG7
8
9
10
SEG10
4
SEG9
3
SEG8
2
SEG2
11 SEG11
1
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
30 NC
7
SEG4 8
29 IF70K
SEG5 9
28 AL-OUT
SEG6 10
SEG7 11
UTC
6610
27 AL-SIG
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
OSC IN 17
20 RST
OSCOUT 18
19 VLCD
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UTC 6610
CMOS IC
ABSOLUTE MAXIMUM RATINGS ( Ta=25°C ,unless otherwise specified )
SYMBOL
RATING
UNIT
Supply Voltage
Input Voltage
Output Voltage
PARAMETER
VDD
VIN
VOUT
0.5 ~ 7.0
-0.5 ~ VDD+0.5
-0.5 ~ VDD+0.5
Storage Temperature
ESD Protection
TSTG
-40 ~ +125
-2 ~ + 2
V
V
V
°C
kV
ELECTRICAL CHARACTERISTICS(Ta=25°C, VDD= 3,Unless otherwise specified)
Parameter
Symbol
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
VDD
IDD1
IDD2
VLCD
ILCD
FLCD
FOSC
FFM
FAM
RIN(FM)
RIN(AM)
VOLoc
VIL
VIH
VOL
VOH
Vt+
VtRIN+/RIN-UP
Test conditions
frequency mode
clock mode
respect to VDD
all segments on
MIN
TYP
MAX
UNIT
2
1.8
55
2.25
3.6
110
2.5
5
mA
µA
V
µA
Hz
kHz
MHz
MHz
Ω
kΩ
V
V
V
V
V
V
V
kΩ
kΩ
32
32.768
VIN = 0.3 VPP
VIN = 0.3 VPP
FFM =120MHz
FAM =12MHz
VDD=3V, Isink =10mA
11.0
0.5
150
30
150
2.0
0.5
0.3VDD
0.7VDD
VDD=3V, Isink=4mA
VDD=3V, ISOURCE=-4mA
VDD=3V
VDD=3V
pull-up or pull-down
0.4
VDD-0.5
0.6
2.3
0.9
75
750
2.4
PAD DESCRIPTION
PAD NO.
SYMBOL
1
VDD
2~4
COM1 ~ COM3
5 ~ 17
SEG0 ~ SEG12
OSCI
18
OSCO
19
VLCD
20
I/O
21
22
23
24
25
26
27
28
29
RST
TESTCLK
TEST
AL-ON/OFF
AL-DISP
MIN-SET
HR-SET
NC
CLKFREQ-SEL
ISU
ISD
ISD
ISU
ISU
ISU
ISU
30
31
32
VSS
AL-SIG
AL-OUT
UTC
OL
OL
I
O
O
ISD
OD10
O4
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 µF capacitor between this pin and
VSS
Active low power-on reset with pull-up resistor of approx.750kΩ
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.
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UTC 6610
33
CMOS IC
IF70k
ISD
Select IF offset in FM mode. H:70kHz, L:10.7kHz
PAD NO.
SYMBOL
I/O
DESCRIPTION
34
NC
No connection
35
RANGE
ISU For frequency counting mode only, Range = H or L, gate time = 0.1S
36
AM/FM-SEL
ISU AM/FM mode selection. High for AM and low for FM, internal pull-up.
37
AVDD
Analog Supply voltage
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: I : Oscillator Input Pad
O: Oscillator Output Pad
ISU: Schmitt trigger input pad with pull-up
D10: 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
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-by10
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
DISPLAY RANGE (ON LCD)
FM
H
11.00 MHz to 99.99 MHz
L
11.00 MHz to 149.9 kHz
AM
H
500 kHz to 9999 kHz
L
0.5 MHz to 29.99 MHz
Note:1 When counter frequency overflow, MSB will not be displayed.
STEP
RESOULTION
10kHz
100kHz
1kHz
10kHz
1kHz
10kHz
100kHz
1kHz
IF OFFSET FOR DIFFERENT APPLICATION:
IF70K
AM/FM-SEL
IF Offset
0
0
+10.7MHz
0
1
+455kHz
1
0
-70 kHz*
1
1
+455kHz
* Suitable to use with TDA7088.
Operation
Display FM input frequency 10.7MHz
Display AM input frequency 455kHz
Display FM input frequency +70kHz
Display AM input frequency 455kHz
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
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CMOS IC
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.
LCD MAPPING
PIN FUNCTION
1
2
3
COM1
COM2
COM3
COM1
4
SEG0
kHz
MHz
5
6
7
8
9
10
11
12
13
14
15
16
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
SEG11
SEG12
AL
DIG1-d
DP1
DP2
DIG2-d
:
AM
DIG3-d
DIG1-c
DIG1-g
DIG1-e
DIG2-c
DIG2-g
DIG2-e
DIG3-c
DIG3-g
DIG3-e
DIG4-c
DIG4-g
DIG34-e
COM2
COM3
FM
DIG4-d
PM
DIG1-b
DIG1-a
DIG1-f
DIG2-b
DIG2-a
DIG2-f
DIG3-b
DIG3-a
DIG3-f
DIG4-b
DIG4-a
DIG4-f
PIN16
PIN1
COL
a
AM
g b
MHz
e
1 c
KHz
AL
FM
PM
4
3
2
DP2
UTC
S1
f
DP1
d
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UTC 6610
CMOS IC
LCD TIMMING WAVEFORMS
O n e C y c le
VDD
V L C D 1 /3
V L C D 2 /3
VLC D
VDD
V L C D 1 /3
COM2
V L C D 2 /3
VLC D
VDD
V L C D 1 /3
COM3
V L C D 2 /3
VLC D
VDD
V L C D 1 /3
SEGX
V L C D 2 /3
VLC D
O n e C y c le
COM1
SEGX SEGX SEGX SEGX SEGX SEGX
COM1 COM2 COM3 COM1 COM2 COM3
ON
ON
ON
ON
ON
ON
SUGGESTED APPLICATION
AM Local
Oscillator
500kHz 30MHz
AM Local Oscillator
Frequency
Clock
Buffer
11kHz 150MHz
FM Local Oscillator
Frequency
Clock
Buffer
6610
LCD
Radio
Frequency
Receiver
AMIN
FMIN
FM Local
Oscillator
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CMOS IC
TYPICAL LCD LAYOUT
Counter Only Mode
PIN
COM1
1
COM1
2
3
4
kHz
5
AL
6
1D
7
DP1
8
DP2
9
2D
10
COL
11
AM
12
3D
13
14
FM
15
4D
16
PM
COM2
COM3
COM2
MHz
1C
1G
1E
2C
2G
2E
3C
3G
3E
4C
4G
4E
COM3
S1
1B
1A
1F
2B
2A
2F
3B
3A
3F
4B
4A
4F
PIN16
PIN1
COL
S1
AM
MHz
FM
PM
DP2
Clock and Counter Mode
PIN
COM1
COM2
1
COM1
2
COM2
3
4
kHz
MHz
5
TS
1C
6
1D
1G
7
1P
1E
8
2P
2C
9
2D
2G
10
COL
2E
11
3C
12
3D
3G
13
S1
3E
14
FM
4C
15
4D
4G
16
PM
4E
17
AM
18
AL
19
MW
20
LW
21
SW
UTC
DP1
KHz
AL
COM3
COM3
TK
1B
1A
1F
2B
2A
2F
3B
3A
3F
4B
4A
4F
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CMOS IC
s1
AL
COL
a
DZS
TK
g b
AM
f
MW
FM
e
LM
PM
SW
4 c
3
d
2P
2
1P
1
MHz
KHz
TS
PIN1
PIN21
AM
MW
LW
stereo
SW
TYPICAL APPLICATION CIRCUITS 1
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CMOS IC
SEG12
SEG7
SEG8
SEG9
SEG10
SEG11
SEG2
COM1
COM2
COM3
SEG0
SEG1
10nf
SEG3
SEG4
SEG5
SEG6
4-DIGITS LCD DISPLAY
5 6 7 8 9 10 11 12 13 14 15 16
1 2 3 4
VDD
10uf AVDD VDD
VLCD
LCD DRIVER
FMIN
AMP
AMIN
IF
FREQ
OFFSET
PRESCALER
DIV.BY 10
0.1μF
COUNTER
CLKFREQ-SEL
4.7kΩ
RST 1MΩ
AMP
VDD
0.1μF
AM/FM-SEL
IF70k
AL-SIG
CLOCK
M
U
X
20pF
32.768
kHz
AL ON/OFF
MINSET
AL DISP
PRESET
OSCIN
OSCOUT
AL-OUT
TESTCLK
TEST
AVss
Vss
TIMMING
CTL
RANGE
20pF
TYPICAL APPLICATION CIRCUITS 2
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QW-R502-011,A
0.1μF
VP
3v
82pF
68pF
220pF
2pF
470kΩ
100kΩ
9013
220Ω
9012
330kΩ
100kΩ
0.1μH
9018
10μF
0.1μF
2pF
AIIpass
Filter
6k
V2
0.1μF
470pF 10kΩ
5.4k
RUM
0.1μF
IF Limiter
-1
Loop filter
AF
Demodulator
AF
MUTE
FM
VDD
FMIN
AMIN
VLCD
NC
SEG9 13
CLKFREQ AL-ON
-SEL
/OFF
IF70k
VSS
AM/FM-SEL
RANGE
SEG11 15
Alarm
On/Off
SEG8 12
ALDISP
Alarm
Set
HRSET
SEG4 8
HR
MINSET
SEG3 7
Time
Set
MHz
MIN
NC
COM1
COM2
COM3
0.1μF
RST
OSCIN
OSCOUT
AL-SIG
AL-OUT
3
10kΩ
9013
20kΩ
2pF
9018
TDA7088
6k
5k
330pF
vp
V3
Audio Out
10kΩ
2
4
1
5
SEG0
27 28 30
17 18
SEG6 10
6610
SEG1
20
36
33 35
25 19
29 34 32 31
6
SEG2
23
SEG5 9
24
SEG7 11
22
13
1.8nF
3
SEG10 14
21
3.9nF
V2
10
SEG12 16
26
180pF
R
s
2.2k 2.2k
3.3nF
V1
&
Search
Tuning
V2
7
8
0.1μF
10nF
5.6kΩ
reset
0.1μF
680pF
BB910
10kΩ
0.1μF
6
Buzzer
32768Hz
11
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UTC
15
2
9
1
Mixer
VCO
11
5 12
4
14
16
CMOS IC
UTC 6610
PAD COORDINATES
QW-R502-011,A
UTC 6610
CMOS IC
(0,0)
CHIP SIZE: 2.02 ×2.70mm
PAD COORDINATES
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UTC 6610
CMOS IC
PAD No.
X
Y
PAD No.
X
Y
1
99
1258
21
1899
1473
2
99
1033
22
1899
1670
3
99
835
23
1899
1868
4
99
637
24
1899
2066
5
99
440
25
1899
2263
6
120
98
26
1899
2570
7
318
98
27
1701
2570
8
516
98
28
1504
2570
9
713
98
29
1306
2570
10
911
98
30
1093
2547
11
1108
98
31
908
2570
12
1306
98
32
732
2558
13
1504
98
33
538
2570
14
1701
98
34
314
2556
15
1899
98
35
120
2570
16
1899
440
36
99
2263
17
1899
682
37
99
2045
18
1899
880
38
99
1823
19
1899
1078
39
95
1648
20
1899
1275
40
99
1428
(Unit :μm)
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CMOS IC
COB PACKAGE (QFP TYPE)
(UNIT: mm)
23.0±1.0
23.0±1.0
10.0 MAX
2.0 MAX
1.27
1.778
COB PACKAGE (SOP TYPE)
(UNIT: mm)
23.0±1.0
7.0 MAX
10.0±0.5
2.0 MAX
1.27
UTC
0.5
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CMOS IC
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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