SM5023 series
Miniature-package Crystal Oscillator Module ICs
OVERVIEW
The SM5023 series are 3rd overtone crystal oscillator module ICs. They feature built-in oscillator capacitors
with excellent frequency response. As cutoff frequency can be configured by using an external feedback resis-
tor R
fo
, a favorable 3rd overtone oscillation can be realized with a few external components. The oscillator cir-
cuit characteristics are optimized for a 3rd overtone oscillation by round blank. They also feature a built-in
output buffer with high output drive capability and are available in miniature 6-pin package, making them ideal
as DIP-type crystal oscillators.
FEATURES
I
PACKAGE DIMENSIONS
(Unit: mm)
0.20MIN
+ 0.2
1.6 - 0.1
2.8
±
0.2
1.9
±
0.2
2.9
±
0.2
0.4
±
0.1
+ 0.1
0.15 - 0.05
I
I
I
I
I
I
I
I
I
Operating supply voltage range
• 3V operation: 2.7 to 3.6V
• 5V operation: 4.5 to 5.5V
4MHz to 70MHz operating frequency range
(Oscillation frequency is settable by external com-
ponents)
–40 to 85
°
C operating temperature range
Oscillator capacitors C
G
, C
D
built-in
(BN
×
H version only)
Cutoff frequency setting using external feedback
resistor R
fo
Output drive capability
• 8mA (V
DD
= 2.7V)
• 16mA (V
DD
= 4.5V)
Output three-state function built-in
• High impedance output in standby mode
CMOS output duty level (1/2VDD)
Molybdenum-gate CMOS process
Package: SOT23-6 (SM5023
×××
H)
0.20
M
0.95
0.1
APPLICATIONS
I
DIP-type crystal oscillator modules
SERIES CONFIGURATION
Version
Operating
Supply voltage
range [V]
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
2.7 to 3.6
4.5 to 5.5
Recommended
operating
frequency
range
1
[MHz]
22 to 70
50 to 70
4 to 70
Oscillator circuit constants
gm ratio
Built-in capacitance
C
G
[pF]
8
8
–
C
D
[pF]
15
12
–
Rf [k
Ω
]
–
–
–
Output
duty level
Standby mode
Oscillator
Output
state
Hi-Z
Hi-Z
Hi-Z
SM5023BNDH
SM5023BNEH
SM5023CNDH
3
4
3
1.1
±
0.1
0 to 0.10
CMOS
CMOS
CMOS
Operation
Operation
Operation
1. The 3rd overtone frequency range using an external resistor to set the cutoff frequency. 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 char-
acteristics can vary greatly due to crystal characteristics and mounting conditions, so the oscillation characteristics of components must be carefully
evaluated.
ORDERING INFORMATION
Device
SM5023
×××
H
Package
SOT23-6
NIPPON PRECISION CIRCUITS INC.—1
NPC [ NIPPON PRECISION CIRCUITS INC ]
