WF5027 series
TYPICAL PERFORMANCE (for fundamental oscillator)
The following characteristics measured using the crystal below. Note that the characteristics will vary with the
crystal used.
ꢀ Crystal used for measurement
ꢀ Crystal parameters
Parameter
C0 [pF]
f
= 48MHz
1.6
f
= 80MHz
2.1
C1
C0
L1
R1
O
O
R1 [Ω]
12
10
Current Consumption
10
8
10
8
6
6
CL = 15pF
CL = 0pF
4
2
0
4
CL = 15pF
2
CL = 0pF
0
1.5
2
2.5
3
3.5
4
1.5
2
2.5
3
3.5
4
VDD [V]
VDD [V]
5027A1, f
= 48MHz, Ta = 25°C
5027AP, f
= 80MHz, Ta = 25°C
OUT
OUT
Negative Resistance
Frequency [MHz]
30 40
Frequency [MHz]
10
20
50
60
50
60
70
80
90
100
0
0
–200
–200
–400
C0 = 2pF
C0 = 1pF
–400
–600
–600
–800
–800
C0 = 2pF
C0 = 0pF
C0 = 0pF
–1000
–1000
C0 = 1pF
5027×1 to ×7, V = 3.3V, Ta = 25°C
5027×P to ×W, V = 3.3V, Ta = 25°C
DD
DD
Characteristics are measured with a capacitance C0, representing the crystal equivalent circuit C0 capacitance, connected between the
XT and XTN pins. Measurements are performed with Agilent 4396B using the NPC test jig. Characteristics may vary with measurement jig
and measurement conditions.
SEIKO NPC CORPORATION —15
NPC [ NIPPON PRECISION CIRCUITS INC ]
