NPC CF5732EA Analog clock cmos ic Datasheet

CF5732 Series
Analog clock CMOS IC
NIPPON PRECISION CIRCUITS INC.
OVERVIEW
FEATURES
The CF5732 series are analog clock driver ICs using
32kHz reference frequency of crystal oscillator. Some
versions in accordance with the combinations of each
motor drive and alarm output characteristics can provide
a wide range of applications for various clock specifications.
The CF5732 series incorporates 4 types of pace adjustment capacitors, which enables to adjust the pace with
bonding options.
- Built-in oscillator circuits(32.678 kHz)
On-chip feed back resistors (Rf, Rd)
Crystal oscillator capacitors (CD, CG)
Additional 4 capacitors for pace adjustment.
- Debounce circuit (AI terminal)
- Single 1.5 V supply
- Available as a die
SERIES LINEUP
CF5732EA
CF5732FA
CF5732GA
CF5732HA
CF5732JA
CF5732KA
Built-in
XT terminal CG(pF)
11.5
11.5
10
11.5
11.5
11.5
Capacitor
XT terminal CD(pF)
29
29
25
29
29
29
C1(pF)
6
6
3
6
6
6
C2(pF)
7
7
4
7
7
7
C4(pF)
8
8
5
8
8
8
C4(pF)
9
9
6
9
9
9
Motor
Active Level
-
H
L
H
H
H
Output
Hand Drive Cycle(sec)
0.125
1
1
1
1
1
Pulse Width(msec)
DUTY50%
31.25
31.25
15.6
23.4375
46.875
Alarm
Active Level
L
L
L
L
L
L
Input
Test Function
Yes(1/2VDD)
Yes(1/2VDD)
Yes(1/2VDD)
Yes(1/2VDD)
Yes(1/2VDD)
Yes(1/2VDD)
Alarm
Terminal
AO
AO
AO
AO
AO
AO
AO
AO
AO
AO
AO
AO
Output
Active Level
H
L(*1)
H
L(*2)
H
L(*1)
H
L(*2)
H
L(*2)
H
L(*2)
Fundmental Frequency(Hz)
2048
2048
2048
2048
2048
2048
2048
2048
2048
2048
2048
2048
Modulation Frequency(Hz)
8+1
8+1
8+1
8+1
8+1
8+1
16+1
16+1
8+1
8+1
8+1
8+1
IOH MIN(mA)
−1.0
−1.0
−1.0
−1.0
−1.0
−1.0
IOL MIN(mA)
1.0
1.0
1.0
1.0
1.0
1.0
(*1) AO is the reverse phase of AO, when output is active. (the same phase, when output is inactive)
(*2) AO is complete reverse phase of AO. (even output is inactive.)
NIPPON PRECISION CIRCUITS-1
CF5732 Series
PIN DESCRIPTION
PINOUT
4
3
2
1
VDD
Power supply pin
VSS
Ground
13
TC
Test pin
12
AI
Alarm Input
AO
Alarm signal Output
AO
Alarm signal Inverting Output
14
5
6
11
Y
(0, 0) 7
8
9
Description
Name
OUT2
Motor drive output 2
OUT1
Motor drive output 1
10
X
Chip size:
1.49×1.40mm
Chip thickness:
300±30µm
Pad size:
100×100µm
Reverse side of chip is VDD.
XT
Crystal oscillator connection
XT
Crystal oscillator connection
C1
Supplementary internal capacitor connection 1
C2
Supplementary internal capacitor connection 2
C3
Supplementary internal capacitor connection 3
C4
Supplementary internal capacitor connection 4
(Unit: µm)
No
Name
X
Y
No
Name
X
Y
1
VDD
1023
1248
8
OUT1
340
151
2
VSS
817
1248
9
XT
567
151
3
TC
553
1248
10
XT
1101
151
4
AI
214
1248
11
C1
1305
382
5
AO
151
943
12
C2
1305
682
6
AO
151
429
13
C3
1305
880
7
OUT2
151
151
14
C4
1305
1105
BLOCK DIAGRAM
VSS
VDD
CG
XT
4 Stage
Divider
13 Stage
Divider
CD
XT
TC
Alarm
Input
AI
C1
C2
C3
Alarm
Test
C4
Alarm Output
Control
AO
AO
Mortor Output
Control
OUT1 OUT2
NIPPON PRECISION CIRCUITS-2
CF5732 Series
ABSOLUTE MAXIMUM RATINGS
Condition
(VSS= 0V)
Unit
Parameter
Symbol
Rating
Supply Voltage
VDD - VSS
−0.3 to +5.0
V
Input Voltage
VIN
VSS ≤ VIN ≤ VDD
V
Operating Temperature
TOPR
−30 to +70
°C
Storage Temperature
TSTG
−40 to +125
°C
ELECTRICAL CHARACTERISTICS
(Ta= 25°C, VDD= 1.5V, VSS= 0V, f0= 32.768kHz unless otherwise noted)
Rating
Parameter
Symbol
Condition
MIN
TYP
MAX
Unit
1.1
1.5
2.0
V
1.0
3.0
µA
Supply Voltage
VDD
Supply Current
IDD
Motor Output Current
IMOT
VDD= 1.2V, RL= 200Ω
4.0
mA
Alarm Output Current
IOH
AO, AO pin, VOH= 0.75V
−1.0
mA
IOL
AO, AO pin, VOL= 0.75V
1.0
Alarm Input Voltage
VIH
AI pin
VDD−0.2
VIL
AI pin
VSS
Alarm Input Center Voltage
VIM
AI pin
No Load(*1)
Input Resistance
RIN
AI pin
∆f/f
VDD= 1.1V to 2.0V
Internal Capacitance
CG
CD
(*3)
V
VSS+0.2
V
1/2VDD
Oscillator Stability
(*2)
mA
VDD
5
V
15
50
kΩ
0.5
1
PPM/0.1V
GA
10
pF
others
11.5
pF
GA
25
pF
others
29
pF
(*1) All terminals except for the supply and the crystal oscillators are open.
(*2) CG is the incorporated capacitance between VDD and XT.
(*3) CD is the incorporated capacitance between VDD and XT.
NIPPON PRECISION CIRCUITS-3
CF5732 Series
FUNCTIONAL DESCRIPTION
Alarm input/output
1/2V DD (*3)
AI
AO
fCY
fPW
AO
(*1)
AO
(*2)
(*1) AO is the reverse phase of AO, when output is active. (the same phase, when output is inactive): CF5732EA, GA
(*2) AO is complete reverse phase of AO. (even output is inactive.): CF5732FA, HA, JA, KA
(*3) When AI is held at 1/2 VDD, the alarm reference, frequency is output at AO and AO.
Input Debouncing Circuit
Setting bouncing delay time prevents the circuit from the
erroneous operation by AI input bouncing (chattering.)
ton ≤ 31.25 msec : The alarm input is ignored
ton ≥ 62.5 msec : The alarm input is accepted
AI
(Active L)
tCH
tON
NIPPON PRECISION CIRCUITS-4
CF5732 Series
Motor Drive Outputs
Step needle movement
CF5732FA, GA, HA, JA, KA
tPW
OUT1
tPW
OUT2
tCY
tCY
1sec
1sec
Continuos needle movement
CF5732EA
OUT1
tCY
125msec
OUT2
tCY
125msec
NIPPON PRECISION CIRCUITS-5
CF5732 Series
NIPPON PRECISION CIRCUITS INC. reserves the right to make changes to the products described in this data sheet in order to
improve the design or performance and to supply the best possible products. Nippon Precision Circuits Inc. assumes no responsibility for
the use of any circuits shown in this data sheet, conveys no license under any patent or other rights, and makes no claim that the circuits
are free from patent infringement. Applications for any devices shown in this data sheet are for illustration only and Nippon Precision
Circuits Inc. makes no claim or warranty that such applications will be suitable for the use specified without further testing or modification. The products described in this data sheet are not intended to use for the apparatus which influence human lives due to the failure or
malfunction of the products. Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies.
NIPPON PRECISION CIRCUITS INC.
NIPPON PRECISION CIRCUITS INC.
4-3, 2-chome Fukuzumi, Koto-ku
Tokyo, 135 -8430, JAPAN
Telephon: 03-3642-6661
Facsimile: 03-3642-6698
NC9121BE
1996 3
NIPPON PRECISION CIRCUITS-6
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