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WF5028 Schematic ( PDF Datasheet ) - NPC

Teilenummer WF5028
Beschreibung 0.8V operation Crystal Oscillator Module ICs
Hersteller NPC
Logo NPC Logo 




Gesamt 13 Seiten
WF5028 Datasheet, Funktion
WF5028 series
0.8V operation Crystal Oscillator Module ICs
OVERVIEW
The WF5028 series are miniature crystal oscillator module ICs. The devices are fabricated using a proprietary
low voltage process, enabling 0.8V operation. The pad layouts are selective from 3 types depending on pack-
age structures, mounting methods, which are suitable for miniature crystal oscillators. The WF5028 series can
be used to realize ultra miniature, ultra low voltage crystal oscillators.
FEATURES
I Wide range of operating supply voltage: 0.8 to 2.0V
I Optimized low crystal drive current oscillation for
miniature crystal units
I 3 pad layout options for mounting
• WF5028A× series: for Flip Chip Bonding
• CF5028B× series: for Wire Bonding (type I)
• CF5028C× series: for Wire Bonding (type II)
I Recommended oscillation frequency range:
20MHz to 50MHz
I Multi-stage frequency divider for low-frequency
output support: 0.75MHz (min)
I Frequency divider built-in
• Selectable by version: fO, fO/2, fO/4, fO/8, fO/16,
fO/32, fO/64
I 40 to 85°C operating temperature range
I Standby function
• High impedance in standby mode, oscillator
stops
I CMOS output duty level (1/2VDD)
I 50 ± 5% output duty
I 15pF output drive capability
I Wafer form (WF5028××)
Chip form (CF5028××)
APPLICATIONS
I 3.2 × 2.5, 2.5 × 2.0, 2.0 × 1.6 size miniature crystal oscillator modules
ORDERING INFORMATION
Device
WF5028××–4
CF5028××–4
Package
Wafer form
Chip form
SEIKO NPC CORPORATION —1






WF5028 Datasheet, Funktion
WF5028 series
SPECIFICATIONS
Absolute Maximum Ratings
VSS = 0V
Parameter
Supply voltage range
Input voltage range
Output voltage range
Storage temperature range
Output current
Symbol
VDD
VIN
VOUT
TSTG
IOUT
Condition
Between VDD and VSS
Input pins
Output pins
Wafer form
Q pin
Rating
0.5 to +4.0
0.5 to VDD + 0.5
0.5 to VDD + 0.5
65 to +150
± 20
Unit
V
V
V
°C
mA
Recommended Operating Conditions
VSS = 0V
Parameter
Symbol
Condition
Rating
min typ max
Unit
Operating supply voltage
Input voltage
Operating temperature
Oscillation frequency*1
Output frequency
VDD CL 15pF
VIN Input pins
TOPR
fO 5028×1 to 5028×7
fOUT 5028×1 to 5028×7, CL 15pF
0.8 – 2.0 V
VSS – VDD V
40 – +85 °C
20 – 50 MHz
0.75 –
50 MHz
*1. The oscillation frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscillation frequency
range 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.
SEIKO NPC CORPORATION —6

6 Page









WF5028 pdf, datenblatt
WF5028 series
Phase Noise
Measurement equipment: Agilent E5052
Signal Source Analyzer
40
60
80
100
120
140
160
180
10
0.9V
1.2V
1.5V
1.8V
100 1,000 10,000 100,000 1,000,000 10,000,000
Offset frequency [Hz]
5028×1, fOSC = 48MHz, fOUT = 48MHz, Ta = 25°C
Output Waveform
Measurement equipment: Agilent DSO80604B
Oscilloscope
5028×1, VDD = 0.9V, fOUT = 48MHz,
CL = 15pF, Ta = RT
SEIKO NPC CORPORATION 12

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