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 , a favorable 3rd overtone oscillation can be realized with a few external components. The oscillator cir-
fo
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
PACKAGE DIMENSIONS
(Unit: mm)
ꢀ 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 , C built-in
1.9 0.2
2.9 0.2
G
D
(BN×H version only)
ꢀ Cutoff frequency setting using external feedback
resistor R
0.4 0.1
0.20
M
fo
ꢀ Output drive capability
• 8mA (V = 2.7V)
DD
0.95
0.1
• 16mA (V = 4.5V)
DD
ꢀ 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)
APPLICATIONS
ꢀ DIP-type crystal oscillator modules
SERIES CONFIGURATION
Recommended
Operating
Oscillator circuit constants
Built-in capacitance
[pF] [pF]
Standby mode
operating
frequency
Output
duty level
Version
Supply voltage
range [V]
Output
state
gm ratio
Rf [kΩ]
Oscillator
1
C
C
D
range [MHz]
G
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
SM5023BNDH
SM5023BNEH
SM5023CNDH
22 to 70
50 to 70
4 to 70
3
4
3
8
15
–
–
–
CMOS
CMOS
CMOS
Operation
Operation
Operation
Hi-Z
Hi-Z
Hi-Z
8
–
12
–
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
Package
SM5023×××H
SOT23-6
NIPPON PRECISION CIRCUITS INC.—1