NPC CF5018 2.5v 3rd overtone crystal oscillator module ic Datasheet

CF5018 series
2.5V 3rd Overtone Crystal Oscillator Module ICs
OVERVIEW
The CF5018 series are crystal oscillator ICs that operate from 2.5V. Devices are available that provide 3rd
overtone oscillation in the range 30MHz to 80MHz. They are optimized for 2.5V operation, resulting in stable
oscillator startup characteristics and output duty stability. They feature a large reduction in chip surface area
compared to existing devices, making possible the construction of small-sized crystal oscillator.
FEATURES
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2.25 to 2.75V operating supply voltage range
30MHz to 80MHz oscillation frequency range
(varies with version)
– 40 to 85°C operating temperature range
Oscillation capacitors CG, CD built-in
Inverter amplifier feedback resistor built-in
Standby function
• High impedance in standby mode, oscillator stops
Low standby current
• Power-saving pull-up resistor built-in
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fO output frequency (oscillation frequency)
8mA output drive capability (VDD = 2.25V)
CMOS output duty level (1/2VDD)
50 ± 5% output duty (at 1/2VDD)
30pF output load
Molybdenum-gate CMOS process
Chip form (CF5018AL×)
SERIES CONFIGURATION
Operating
supply voltage
range [V]
Built-in capacitance [pF]
Recommended operating
frequency range1 [MHz]
gm ratio
CF5018ALA
30 to 36
0.25
CF5018ALB
36 to 40
0.50
Version
CG
CD
Rf
[kΩ]
4.7
3.5
15
CF5018ALC
2.25 to 2.75
40 to 50
0.75
CF5018ALD
50 to 60
1.00
CF5018ALE
60 to 80
1.50
8
3.5
3.0
10
3.5
1. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the
oscillator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated.
ORDERING INFORMATION
Device
Package
CF5018AL×–2
Chip form
SEIKO NPC CORPORATION —1
CF5018 series
PAD LAYOUT
(Unit: µm)
(720,730)
VDD
HA5018
Y
Q
NPC
VSS
INHN
(0,0)
XTN
XT
X
Chip size: 0.72 × 0.73mm
Chip thickness: 220 ± 30µm
PAD size: 90µm
Chip base: VDD level
PIN DESCRIPTION and PAD DIMENSIONS
Pad dimensions [µm]
Name
I/O
Description
X
Y
INHN
I
Output state control input. High impedance when LOW (oscillator stops).
Power-saving pull-up resistor built-in.
151
277
XT
I
Amplifier input
238
131
XTN
O
Amplifier output
503
131
VSS
–
Ground
588
345
Q
O
Output. Output frequency. High impedance in standby mode
588
598
VDD
–
Supply voltage
131
598
Crystal connection pins.
Crystal is connected between XT and XTN.
BLOCK DIAGRAM
VDD VSS
XTN
CG
Rf1
Cf
CD
XT
Q
Rf2
INHN
INHN = LOW active
SEIKO NPC CORPORATION —2
CF5018 series
SPECIFICATIONS
Absolute Maximum Ratings
VSS = 0V
Parameter
Symbol
Condition
Rating
Unit
Supply voltage range
VDD
−0.5 to +7.0
V
Input voltage range
VIN
−0.5 to VDD + 0.5
V
Output voltage range
VOUT
−0.5 to VDD + 0.5
V
Operating temperature range
Topr
−40 to +85
°C
Storage temperature range
TSTG
−65 to +150
°C
Output current
IOUT
20
mA
Rating
Unit
Recommended Operating Conditions
VSS = 0V, f ≤ 80MHz, CL ≤ 30pF
Parameter
Symbol
Condition
Supply voltage range
VDD
2.25 to 2.75
V
Input voltage range
VIN
VSS to VDD
V
TOPR
−40 to +85
°C
Operating temperature range
SEIKO NPC CORPORATION —3
CF5018 series
Electrical Characteristics
VDD = 2.25 to 2.75V, VSS = 0V, Ta = −40 to +85°C unless otherwise noted.
Rating
Parameter
Symbol
Condition
Unit
min
typ
max
HIGH-level output voltage
VOH
Q: Measurement cct 1, VDD = 2.25V, IOH = 8mA
1.65
1.95
–
V
LOW-level output voltage
VOL
Q: Measurement cct 2, VDD = 2.25V, IOL = 8mA
–
0.3
0.4
V
HIGH-level input voltage
VIH
INHN
0.7VDD
–
–
V
LOW-level input voltage
VIL
INHN
–
–
0.3VDD
V
–
10
µA
IZ
Q: Measurement cct 2, INHN = LOW
VOH = VDD
–
Output leakage current
VOL = VSS
–
–
10
µA
CF5018ALA
f = 30MHz
–
6
12
mA
CF5018ALB
f = 40MHz
–
8
16
mA
CF5018ALC
f = 50MHz
–
10
20
mA
CF5018ALD
f = 60MHz
–
11
22
mA
CF5018ALE
f = 80MHz
–
15
30
mA
–
–
3
µA
2
6
12
MΩ
20
100
200
kΩ
CF5018ALA
3.99
4.7
5.41
kΩ
CF5018ALB
2.97
3.5
4.03
kΩ
CF5018ALC
2.97
3.5
4.03
kΩ
CF5018ALD
2.55
3.0
3.45
kΩ
CF5018ALE
2.97
3.5
4.03
kΩ
Current consumption
Standby current
INHN pull-up resistance
IDD
IST
RUP1
Measurement cct 3, load cct 1,
INHN = open, CL = 30pF
Measurement cct 3, INHN = LOW
Measurement cct 4
RUP2
AC feedback resistance
Rf1
Design value. A monitor pattern on a
wafer is tested.
DC feedback resistance
Rf2
Measurement cct 5
50
–
150
kΩ
AC feedback capacitance
Cf
Design value. A monitor pattern on a wafer is tested.
8.5
10
11.5
pF
CG
Design value. A monitor pattern on a wafer is tested.
6.8
8
9.2
pF
CF5018ALA
CF5018ALB
CF5018ALC
CF5018ALD
12.7
15
17.3
pF
CF5018ALE
8.5
10
11.5
pF
Built-in capacitance
CD
Design value. A monitor pattern on a
wafer is tested.
SEIKO NPC CORPORATION —4
CF5018 series
Switching Characteristics
VDD = 2.25 to 2.75V, VSS = 0V, Ta = −40 to +85°C unless otherwise noted.
Rating
Parameter
Symbol
Condition
Unit
min
typ
max
Output rise time
tr
Measurement cct 3, load cct 1, 0.1VDD to 0.9VDD , CL = 30pF
–
3
6
ns
Output fall time
tf
Measurement cct 3, load cct 1, 0.9VDD to 0.1VDD , CL = 30pF
–
3
6
ns
Measurement cct 3, load cct 1, VDD = 2.5V, Ta = 25°C,
f = 80MHz , CL = 30pF
45
–
55
%
–
–
100
ns
–
–
100
ns
Output duty cycle1
Duty
Output disable delay time2
tPLZ
Output enable delay time2
tPZL
Measurement cct 6, load cct 1, VDD = 2.5V, Ta = 25°C,
CL = 15pF
1. The duty cycle characteristic is checked the sample chips of each production lot.
2. 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.
Current consumption and Output waveform with NPC’s standard crystal
Cb
L
Ca
R
f [MHz]
R [Ω]
L [mH]
Ca [fF]
Cb [pF]
30
18.62
16.24
1.733
5.337
40
20.53
11.34
1.396
3.989
50
22.17
7.40
1.370
4.105
60
15.37
3.83
1.836
5.191
70
25.42
4.18
1.254
5.170
85
20.58
5.22
0.671
4.965
FUNCTIONAL DESCRIPTION
Standby Function
When INHN goes LOW, the oscillator stops and the oscillator output on Q becomes high impedance.
INHN
Q
Oscillator
HIGH (or open)
fO output frequency
Normal operation
LOW
High impedance
Stopped
Power-saving Pull-up Resistor
The INHN pull-up resistance changes in response to the input level (HIGH or LOW). When INHN goes LOW
(standby state), the pull-up resistance becomes large to reduce the current consumption during standby.
SEIKO NPC CORPORATION —5
CF5018 series
MEASUREMENT CIRCUITS
Measurement cct 1
Measurement cct 4
C1
Signal
Generator
VDD
XT
VDD
XT
Q
Q
XTN
INHN
R1
VSS
XTN
INHN
R2
VSS
VPR
VDD
VOH
0V
2Vp-p, 10MHz sine wave input signal
C1: 0.001µF
R1: 50Ω
R2: 206Ω
IPR
VDD
IPR
(VPR = V SS)
RUP2 = VDD VPR
IPR
(VPR = 0.7VDD)
V
Q output
RUP1 =
A
Measurement cct 5
Measurement cct 2
IZ, IOL
XT
VDD
IZ
XTN
INHN
A
VSS
V
Rf =
Q
Q
XTN
INHN
VDD
XT
VDD
IRf
VSS
A
VOH
VOL
IRf
Measurement cct 6
Measurement cct 3
A
XT
IDD
IST
Signal
Generator
VDD
XT
Q
R1
VDD
X'tal
C1
XTN
INHN
VSS
Q
XTN
INHN
VSS
2Vp-p, 10MHz sine wave input signal
C1: 0.001µF
R1: 50Ω
Load cct 1
Q output
CL
(Including probe
capacitance)
SEIKO NPC CORPORATION —6
CF5018 series
Switching Time Measurement Waveform
Output duty level, tr, tf
Q output
0.9VDD
0.9VDD
0.1VDD
DUTY measurement
voltage (0.5V DD )
0.1VDD
TW
tr
tf
Output duty cycle
DUTY measurement
voltage (0.5V DD)
Q output
TW
DUTY= TW/ T
T
100 (%)
Output Enable/Disable Delay
when the device is in standby, the oscillator stops. When standby is released, the oscillator starts and stable
oscillator output occurs after a short delay.
VIH
INHN
VIL
tPLZ
tPZL
INHN input waveform tr = tf
10ns
Q output
SEIKO NPC CORPORATION —7
CF5018 series
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]
NC0215BE
2006.04
SEIKO NPC CORPORATION —8
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