WF5025 series
Crystal Oscillator Module ICs
OVERVIEW
The WF5025 series are miniature crystal oscillator module ICs. They feature a damping resistor R
D
matched to
the crystal's characteristics to reduce crystal current. The pad layout is arranged for flip chip mounting, which
gives the pattern design more flexibility, even for mounting ultra-miniature crystal oscillators that provide
almost no space for wiring patterns. They support fundamental oscillation and 3rd overtone oscillation modes.
The WF5025 series can be used to correspond to wide range of applications.
FEATURES
I
I
I
I
I
I
Pad layout optimized for flip chip mounting
Miniature-crystal matched oscillator characteristics
Operating supply voltage range
• 2.5V operation: 2.25 to 2.75V
• 3.0V operation: 2.7 to 3.6V
Recommended operating frequency range
• For fundamental oscillator
- WF5025AL×: 20MHz to 50MHz
- WF5025BL1: 20MHz to 100MHz
• For 3rd overtone oscillator
- WF5025ML×: 70MHz to 133MHz
−40
to 85°C operating temperature range
Oscillator capacitor with excellent frequency char-
acteristics built-in
I
I
I
I
I
I
I
I
I
Oscillator circuit with damping resistor R
D
built-
in for reduced crystal current
Standby function
• High impedance in standby mode, oscillator
stops
Low standby current
• Power-saving pull-up resistor built-in
Oscillation detector function
Frequency divider built-in (WF5025AL×)
• varies with version: f
O
, f
O
/2, f
O
/4, f
O
/8, f
O
/16,
f
O
/32
CMOS output duty level (1/2VDD)
50 ± 5% output duty @ 1/2VDD
30pF output load
Molybdenum-gate CMOS process
SERIES CONFIGURATION
Version
Operating
supply voltage
[V]
Oscillation
mode
Recommended
Output
operating frequency
current
range (fundamental (V
DD
= 2.5V)
[mA]
oscillation)
*1
[MHz]
Standby mode
Output
frequency
f
O
f
O
/2
2.25 to 3.6
Fundamental
20 to 50
4
f
O
/4
f
O
/8
f
O
/16
f
O
/32
2.25 to 3.6
Fundamental
20 to 100
70 to 80
2.25 to 3.6
3rd overtone
80 to 100
90 to 133
8
f
O
CMOS
Yes
Hi-Z
8
f
O
CMOS
Yes
Hi-Z
CMOS
Yes
Hi-Z
Output duty
level
Oscillator
stop
function
Output state
WF5025AL1
WF5025AL2
WF5025AL3
WF5025AL4
WF5025AL5
WF5025AL6
WF5025BL1
*2
WF5025MLA
(WF5025MLB)
WF5025MLC
*1. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscil-
lator 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.
*2. The WF5025BL1 has a higher maximum operating frequency, hence the negative resistance is also larger than in the WF5025AL× devices.
Note. These versions in parentheses ( ) are under development. Please ask our Sales & Marketing section for further detail.
ORDERING INFORMATION
Device
WF5025×××–3
Package
Wafer form
NIPPON PRECISION CIRCUITS INC.—1
WF5025 series
PAD LAYOUT
(Unit:
µm)
(750,850)
HA5025
VSS
Y
Q
VDD
INHN
NPC
XT
(0,0)
X
Chip size: 0.75
×
0.85mm
Chip thickness: 180 ± 20µm
PAD size: 90µm
Chip base: V
DD
level
XTN
PIN DESCRIPTION and PAD DIMENSIONS
Pad dimensions [µm]
Name
I/O
Description
X
INHN
XT
XTN
VDD
Q
VSS
I
I
O
–
O
–
Output state control input. High impedance when LOW (oscillator stops).
Power-saving pull-up resistor built-in.
Amplifier input
Amplifier output
Supply voltage
Output. Output frequency determined by internal circuit to one of f
O
, f
O
/2, f
O
/4, f
O
/8, f
O
/16,
f
O
/32. High impedance in standby mode
Ground
Crystal connection pins.
Crystal is connected between XT and XTN.
144.6
171.0
579.0
618.2
618.2
131.8
Y
413.4
144.6
144.6
438.6
705.4
718.2
NIPPON PRECISION CIRCUITS INC.—2
WF5025 series
SPECIFICATIONS
Absolute Maximum Ratings
V
SS
= 0V
Parameter
Supply voltage range
Input voltage range
Output voltage range
Operating temperature range
Storage temperature range
Output current
Symbol
V
DD
V
IN
V
OUT
T
opr
T
STG
I
OUT
Condition
Rating
−0.5
to +7.0
−0.5
to V
DD
+ 0.5
−0.5
to V
DD
+ 0.5
−40
to +85
−65
to +150
20
Unit
V
V
V
°C
°C
mA
Recommended Operating Conditions
V
SS
= 0V
Rating
*1
Parameter
Symbol
WF5025AL×
WF5025BL1
WF5025MLA
Operating supply voltage
V
DD
WF5025MLB
WF5025MLC
Input voltage
Operating temperature
V
IN
T
OPR
WF5025AL×
WF5025BL1
*3
Operating frequency
*2
f
O
WF5025MLA
WF5025MLB
*3
WF5025MLC
*3
Condition
min
CL
≤
30pF
CL
≤
30pF
f
≤
80MHz, CL
≤
30pF
f
≤
100MHz, CL
≤
30pF
f
≤
100MHz, CL
≤
30pF
f
≤
133MHz, CL
≤
15pF
2.25
2.25
2.25
(2.25)
2.25
2.25
V
SS
−40
20
20
70
(80)
90
typ
–
–
–
–
–
–
–
–
–
–
–
–
–
max
3.6
3.6
3.6
(3.6)
3.6
3.6
V
DD
+85
50
100
80
(100)
133
V
V
V
V
V
V
V
°C
MHz
MHz
MHz
MHz
MHz
Unit
*1. Values in parentheses ( ) are provisional only.
*2. The 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 char-
acteristics of components must be carefully evaluated.
*3. When 2.5V operation, the ratings of switching characteristics are difference by the frequency or output load. Refer to “Switching Characteristics”.
NIPPON PRECISION CIRCUITS INC.—4
WF5025 series
Electrical Characteristics
WF5025AL× (2.5V operation)
V
DD
= 2.25 to 2.75V, V
SS
= 0V, Ta =
−40
to +85°C unless otherwise noted.
Rating
Parameter
HIGH-level output voltage
LOW-level output voltage
HIGH-level input voltage
LOW-level input voltage
Output leakage current
Symbol
V
OH
V
OL
V
IH
V
IL
I
Z
Condition
min
Q: Measurement cct 1, V
DD
= 2.25V, I
OH
= 4mA
Q: Measurement cct 2, V
DD
= 2.25V, I
OL
= 4mA
INHN
INHN
Q: Measurement cct 2, INHN = LOW
V
OH
= V
DD
V
OL
= V
SS
WF5025AL1
WF5025AL2
Current consumption
I
DD2
Measurement cct 3, load cct 1,
INHN = open, C
L
= 30pF, f = 50MHz
WF5025AL3
WF5025AL4
WF5025AL5
WF5025AL6
Standby current
INHN pull-up resistance
Feedback resistance
Oscillator amplifier output
resistance
Built-in capacitance
I
ST
R
UP1
R
UP2
R
f
R
D
C
G
C
D
Measurement cct 5
Design value. A monitor pattern on a wafer is tested.
Measurement cct 3, INHN = LOW
Measurement cct 4
20
50
340
6.8
Design value. A monitor pattern on a wafer is tested.
8.5
10
11.5
pF
100
–
400
8
200
150
460
9.2
kΩ
kΩ
Ω
pF
1.65
–
0.7V
DD
–
–
–
–
–
–
–
–
–
–
2
typ
1.95
0.3
–
–
–
–
7
4.5
3.5
2.9
2.5
2.4
–
6
max
–
0.4
–
0.3V
DD
10
10
14
9
7
5.8
5
4.8
3
12
V
V
V
V
µA
µA
mA
mA
mA
mA
mA
mA
µA
MΩ
Unit
NIPPON PRECISION CIRCUITS INC.—5
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