NPC CF5029A-2 Divide-by-512 frequency output, crystal oscillator module ic Datasheet

CF5029A
Divide-by-512 Frequency Output, Crystal Oscillator Module IC
OVERVIEW
The CF5029A is crystal oscillator module IC with divide-by-512 frequency output. It employs a
16.777216MHz fundamental frequency crystal source oscillator to generate a 32.768kHz output crystal oscillator with excellent temperature characteristics.
FEATURES
■
■
■
■
■
2.25 to 3.6V operating supply voltage range
16.777216MHz reference source oscillator frequency
Output frequency: oscillation frequency divided
by 512
– 40 to 85°C operating temperature range
Oscillation capacitors CG, CD built-in
■
■
■
■
■
■
Standby function
• High impedance in standby mode, oscillator stops
Power-saving pull-up resistor built-in
2mA output drive capability (min. VDD = 2.25V)
CMOS output duty level (1/2VDD)
Molybdenum-gate CMOS process
Chip form (CF5029A)
APPLICATIONS
■
32.768kHz output crystal oscillator modules
ORDERING INFORMATION
Device
Package
CF5029A–2
Chip form
SEIKO NPC CORPORATION —1
CF5029A
PAD LAYOUT
(Unit: µm)
(1000,1060)
NPC
VDD
7
NC
3
6
Q
4
5
NC
1
XT
2
XTN
VSS
HA5029
Y
8
INHN
(0,0)
X
Chip size: 1.00 × 1.06mm
Chip thickness: 220 ± 30µm
PAD size: 100µm
Chip base: VDD level
PIN DESCRIPTION and PAD DIMENSIONS
Pad dimensions [µm]
No.
Name
I/O
Description
X
Y
1
INHN
I
Output state control input. High impedance when LOW, oscillator stops.
Power-saving pull-up resistor built-in.
155
785
2
XT
I
Oscillator input
155
597
3
XTN
O
Oscillator output
155
363
4
VSS
–
(–) ground
155
175
5
NC
–
No connection (leave open)
844
175
6
Q
O
Output. Source oscillator divided-by-512 frequency output
844
363
7
NC
–
No connection (leave open)
844
694
8
VDD
–
(+) supply voltage
844
882
Crystal connection pins.
Crystal is connected between XT and XTN.
BLOCK DIAGRAM
VDD VSS
XTN
CG
CD
Rf
XT
1
512
Q
INHN
SEIKO NPC CORPORATION —2
CF5029A
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Condition
Rating
Unit
Supply voltage range
VDD
VSS −0.3 to VSS + 5.0
V
Input voltage range
VIN
VSS − 0.3 to VDD + 0.3
V
Output voltage range
VOUT
VSS − 0.3 to VDD + 0.3
V
Storage temperature range
TSTG
−65 to +150
°C
Chip form
RECOMMENDED OPERATING CONDITIONS
fO = 16.777216MHz unless otherwise noted.
Rating
Parameter
Symbol
Condition
Unit
min
typ
max
Supply voltage
VDD
2.25
–
3.6
V
Input voltage
VIN
VSS
–
VDD
V
TOPR
−40
+25
+85
°C
Operating temperature
Current consumption and Output waveform with NPC’s standard crystal
C0
L1
C1
R1 [Ω]
L1 [mH]
C1 [fF]
C0 [pF]
5.6
7.45
12.67
3.40
R1
ELECTRICAL CHARACTERISTICS
DC Characteristics
VDD = 2.25 to 3.6V, VSS = 0V, Ta = −40 to +85°C unless otherwise noted.
Rating
Parameter
Symbol
Condition
Unit
min
typ
max
VDD = 2.25 to 2.75V
–
0.24
0.6
mA
VDD = 2.75 to 3.6V
–
0.42
1
mA
–
–
10
µA
Operating current
consumption
IDD
Measurement cct 1,
INHN = open or HIGH,
CL = 15pF
Standby current
IST
Measurement cct 1, INHN = LOW
HIGH-level output voltage
VOH
Measurement cct 3, VDD = 2.25 to 3.6V, IOH = 2mA
VDD – 0.4
VDD – 0.15
–
V
LOW-level output voltage
VOL
Measurement cct 3, VDD = 2.25 to 3.6V, IOL = 2mA
–
0.15
0.4
V
VOH = VDD
–
–
10
µA
VOL = VSS
–
–
–10
µA
IZ
Measurement cct 4,
INHN = LOW
HIGH-level input voltage
VIH
Measurement cct 5
0.7VDD
–
–
V
LOW-level input voltage
VIL
Measurement cct 5
–
–
0.3VDD
V
INHN = VSS
0.4
–
4
MΩ
INHN = 0.7VDD
40
–
200
kΩ
5
6
7
pF
5
6
7
pF
Output leakage current
INHN pull-up resistance
RPU1
RPU2
Built-in capacitance
CG
CD
Measurement cct 6
Design value. A monitor pattern on a wafer is tested.
Ta = 25°C
SEIKO NPC CORPORATION —3
CF5029A
AC Characteristics
VDD = 2.25 to 3.6V, VSS = 0V, Ta = −40 to +85°C unless otherwise noted.
Rating
Parameter
Symbol
Condition
Unit
min
typ
max
Duty
Measurement cct 1, CL = 15pF, VDD = 2.5V, 3.3V,
Ta = 25°C
45
50
55
%
Rise time
tr
Measurement cct 1, 0.1VDD to 0.9VDD, CL = 15pF
–
0.2
1
µs
Fall time
Output duty cycle
tf
Measurement cct 1, 0.9VDD to 0.1VDD, CL = 15pF
–
0.2
1
µs
Output enable delay time1
tOE
Measurement cct 2, VDD = 2.5V, 3.3V, Ta = 25°C
–
–
2
µs
Output disable delay time
tOD
Measurement cct 2, VDD = 2.5V, 3.3V, Ta = 25°C
–
–
2
µs
1. Oscillator stop function is built-in. When INHN goes LOW, normal output stops. When INHN goes HIGH, normal output is not resumed until after
the oscillator start-up time has elapsed.
Timing chart
0.9VDD
Q
0.9VDD
DUTY measurement
voltage (0.5V DD )
TW
0.1VDD
0.1VDD
DUTY= TW/ T 100 (%)
T
tr
tf
Figure 1. Output switching waveform
INHN
VIH
VIL
tOD
Q
tOE
Hi-Z
Figure 2. Output disable/enable timing chart
SEIKO NPC CORPORATION —4
CF5029A
FUNCTIONAL DESCRIPTION
Standby Function
When INHN goes LOW, the device is in standby mode. The Q output becomes high impedance and the oscillator circuit stops.
INHN
Q
Oscillator
HIGH (or open)
fO/512
Normal operation
LOW
High impedance
Stopped
Power-saving Pull-up Resistor
The INHN pin pull-up resistance changes in response to the input level (HIGH or LOW). When INHN is tied
LOW, the pull-up resistance becomes large, reducing the current consumed by the resistance. When INHN is
open circuit, the pull-up resistance becomes small, decreasing the susceptibility to the effects of external noise.
SEIKO NPC CORPORATION —5
CF5029A
MEASUREMENT CIRCUITS
Measurement cct 1
Measurement cct 4
Measurement parameter: IDD, IST, Duty, tr , tf
Measurement parameter: IZ
A
IDD
IST
VDD
VDD
XT
VDD
X'tal
A
Q
Q
or
VSS
XTN
INHN VSS
IDD: Open
IST: Short
IZ
INHN VSS
CL = 15pF
(Including probe
capacitance)
Note: The AC characteristics are observed with an oscilloscope on pin Q.
X’tal: NPC’s standard crystal
Measurement cct 5
Measurement cct 2
Measurement parameter: VIH, VIL
Measurement parameter: tOE, tOD
VDD
XT
VDD
Pulse
Generator
XT
X'tal
Q
Q
XTN
INHN VSS
INHN VSS
VIH
V
VIL
< 16MHz
HIGH-level: VDD , LOW-level: VSS
Note: Observed with an oscilloscope on pin Q. Does not include the
oscillator start time.
VIH: Voltage in VSS to VDD transition that changes the output state.
VIL: Voltage in VDD to VSS transition that changes the output state.
INHN is an output state control pin.
Note: X’tal: NPC’s standard crystal
Measurement cct 6
Measurement cct 3
Measurement parameter: RPU1, RPU2
Measurement parameter: VOH, VOL
VDD
Pulse
Generator
IOL = 2mA
VDD
XT
Q
VSS
VOH
V
VOL
When measuring
VOL: ON
When measuring
VOH: ON
INHN VSS
IOH = 2mA
RPU1 =
VIN V
A IPU
VDD
IPU
(VIN = 0V)
RPU2 = VDD 0.7V DD (VIN = 0.7V DD)
IPU
< 16MHz
HIGH-level: VDD , LOW-level: VSS
Note: Q HIGH-level and LOW-level voltages VOH and VOL are
measured with pulse input stopped.
SEIKO NPC CORPORATION —6
CF5029A
Please pay your attention to the following points at time of using the products shown in this document.
The products shown in this document (hereinafter “Products”) are not intended to be used for the apparatus that exerts harmful influence on
human lives due to the defects, failure or malfunction of the Products. Customers are requested to obtain prior written agreement for such
use from SEIKO NPC CORPORATION (hereinafter “NPC”). Customers shall be solely responsible for, and indemnify and hold NPC free and
harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. NPC reserves the right
to change the specifications of the Products in order to improve the characteristic or reliability thereof. NPC makes no claim or warranty that
the contents described in this document dose not infringe any intellectual property right or other similar right owned by third parties.
Therefore, NPC shall not be responsible for such problems, even if the use is in accordance with the descriptions provided in this document.
Any descriptions including applications, circuits, and the parameters of the Products in this document are for reference to use the Products,
and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further testing or
modification. Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in
compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested
appropriately take steps to obtain required permissions or approvals from appropriate government agencies.
SEIKO NPC CORPORATION
15-6, Nihombashi-kabutocho, Chuo-ku,
Tokyo 103-0026, Japan
Telephone: +81-3-6667-6601
Facsimile: +81-3-6667-6611
http://www.npc.co.jp/
Email: [email protected]
NC0313BE
2006.04
SEIKO NPC CORPORATION —7
Similar pages