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 IC
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
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
UTC 6610
PAD ASSIGNMENT
QFP-48- 12
×
12-0.8 PACKAGE
CLKFREQ-SEL
HR-SET
RANGE
MIN-SET
AL-OUT
CMOS IC
IF70K
AL-SIG
V
SS
NC
NC
NC
36 35 34 33 32 31 30 29 28 27 26 25
AM/FM-SEL 37
AV
DD
38
AM
IN
39
AV
SS
40
FM
IN
41
V
DD
42
V
SS
43
COM1 44
COM2 45
COM3 46
SEG0 47
NC 48
1
NC
2
SEG1
3
SEG2
4
SEG3
5
SEG4
6
SEG5
7
SEG6
8
SEG7
9 10
SEG8
SEG9
11 12
SEG10
NC
MIN-SET
24
23
22 AL DISP
21 AL ON/OFF
20 TEST
19 TEST CLK
18 RST
NC
17 V
LCD
16 OSCOUT
15 OSC IN
14 SEG12
13 SEG11
12 NC
1
NC
2
SEG1
3
SEG2
4
SEG3
5
SEG4
6
SEG5
7
SEG6
8
SEG7
9 10
SEG8
SEG9
11
SEG10
NC
24 AL DISP
23 AL ON/OFF
22 TEST
21 TEST CLK
20 RST
19 V
SS
18 V
LCD
17 OSCOUT
16 OSC IN
15 SEG12
14 SEG11
13 NC
6610
QFP-44- 10×10-.8 PACKAGE
CLKFREQ-SEL
HR-SET
AL-OUT
RANGE
AL-SIG
IF70K
NC
V
SS
33 32 31 30 29 28 27 26 25
NC 34
AM/FM-SEL 35
AV
DD
36
AM
IN
37
AV
SS
38
FM
IN
39
V
DD
40
COM1 41
COM2 42
COM3 43
SEG0 44
6610
UTC
UNISONIC TECHNOLOGIES CO. LTD
NC
2
QW-R502-011,A
UTC 6610
COB PACKAGE,QFP TYPE
CLKFREQ-SEL
RANGE
MIN-SET
HR-SET
AL-OUT
AL-SIG
CMOS IC
IF70K
V
SS
30 29 28 27 26 25 24 23 22 21
AM/FM-SEL 31
AV
DD
32
AM
IN
33
AV
SS
34
FM
IN
35
V
DD
36
COM1 37
COM2 38
COM3 39
SEG0 40
1
SEG1
2
SEG2
3
SEG3
4
SEG4
5
SEG5
6
SEG6
7
SEG7
8
SEG8
9
SEG9
10
SEG10
20 AL DISP
19 AL ON/OFF
18 TEST
17 TEST CLK
NC
NC
6610
16 RST
15 V
LCD
14 OSCOUT
13 OSC IN
12 SEG12
11 SEG11
COB PACKAGE SOP TYPE
COM1 1
COM2 2
COM3 3
SEG0 4
SEG1 5
SEG2 6
SEG3
7
SEG4 8
SEG5 9
SEG6 10
SEG7 11
SEG8 12
SEG9 13
SEG10 14
SEG11 15
SEG12 16
OSC IN 17
OSCOUT 18
36 V
DD
35 FM
IN
34 V
SS
33 AM
IN
32 AM/FM-SEL
31 RANGE
30 NC
29 IF70K
28 AL-OUT
6610
27 AL-SIG
26 CLKFREQ-SEL
25 NC
24 HR-SET
23 MIN-SET
22 AL DISP
21 AL ON/OFF
20 RST
19 V
LCD
UTC
UNISONIC TECHNOLOGIES CO. LTD
3
QW-R502-011,A
UTC 6610
ABSOLUTE MAXIMUM RATINGS
( Ta=25°C ,unless otherwise specified )
PARAMETER
Supply Voltage
Input Voltage
Output Voltage
Storage Temperature
ESD Protection
CMOS IC
SYMBOL
V
DD
V
IN
V
OUT
T
STG
RATING
0.5 ~ 7.0
-0.5 ~ V
DD
+0.5
-0.5 ~ V
DD
+0.5
-40 ~ +125
-2 ~ + 2
UNIT
V
V
V
°C
kV
ELECTRICAL CHARACTERISTICS
(Ta=25°C, V
DD
= 3,Unless otherwise specified)
Parameter
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
V
DD
I
DD1
I
DD2
V
LCD
I
LCD
F
LCD
F
OSC
F
FM
F
AM
R
IN(FM)
R
IN(AM)
V
OL
oc
V
IL
V
IH
V
OL
V
OH
Vt+
Vt-
R
IN+/-
R
IN-UP
Test conditions
frequency mode
clock mode
respect to VDD
all segments on
MIN
TYP
1.8
55
2.25
32
32.768
MAX
3.6
110
2.5
5
UNIT
mA
µA
V
µA
Hz
kHz
MHz
MHz
Ω
kΩ
V
V
V
V
V
V
V
kΩ
kΩ
2
V
IN
= 0.3 V
PP
V
IN
= 0.3 V
PP
F
FM
=120MHz
F
AM
=12MHz
V
DD
=3V, Isink =10mA
11.0
0.5
150
2.0
150
30
0.5
0.3V
DD
0.7V
DD
0.4
V
DD
-0.5
0.6
2.3
0.9
75
750
2.4
V
DD
=3V, Isink=4mA
V
DD
=3V, I
SOURCE
=-4mA
V
DD
=3V
V
DD
=3V
pull-up or pull-down
PAD DESCRIPTION
PAD NO.
SYMBOL
1
VDD
2~4
COM1 ~ COM3
5 ~ 17
SEG0 ~ SEG12
OSCI
18
OSCO
19
V
LCD
20
21
22
23
24
25
26
27
28
29
30
31
32
RST
TESTCLK
TEST
AL-ON/OFF
AL-DISP
MIN-SET
HR-SET
NC
CLKFREQ-SEL
V
SS
AL-SIG
AL-OUT
I/O
OL
OL
I
O
O
ISU
ISD
ISD
ISU
ISU
ISU
ISU
ISD
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
V
SS
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.
OD10
O4
UTC
UNISONIC TECHNOLOGIES CO. LTD
4
QW-R502-011,A
UTC 6610
33
IF70k
ISD
Select IF offset in FM mode. H:70kHz, L:10.7kHz
CMOS IC
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
AV
DD
Analog Supply voltage
38
AM
IN
AM signal input, 0.3V peak to peak, 500kHz to 30MHz.
39
AV
SS
Analog Ground pin.
40
FM
IN
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 FM
IN
and the AM
IN
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
FM
RANGE
DISPLAY RANGE (ON LCD)
STEP
10kHz
100kHz
1kHz
10kHz
RESOULTION
1kHz
10kHz
100kHz
1kHz
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.
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
UTC
UNISONIC TECHNOLOGIES CO. LTD
5
QW-R502-011,A
嵌入式系统
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