SM5021 series
Crystal Oscillator Module ICs
NIPPON PRECISION CIRCUITS INC.
OVERVIEW
The SM5021 series are crystal oscillator module ICs
fabricated in NPC’s Molybdenum-gate CMOS, that
incorporate high-frequency, low current consump-
tion oscillator and output buffer circuits. Highly
accurate thin-film feedback resistors and high-fre-
quency capacitors are built-in, eliminating the need
for external components to make a stable 3rd-har-
monic oscillator.
FEATURES
■ 3rd overtone oscillation
■ Capacitors CG, CD built-in
■ Inverter amplifier feedback resistor built-in
(A×, B× series)
■ Output three-state function
■ 2.7 to 5.5 V supply voltage (A×, K× series)
4.5 to 5.5 V supply voltage (B×, L× series)
■ Oscillator frequency output
■ TTL input level
■ 6-pin SOT (SM5021××H)
■ 4 mA (V = 2.7 V) drive capability
■ Chip form (CF5021××)
DD
8 mA (V = 4.5 V) drive capability
DD
SERIES CONFIGURATION
Recommended
operating frequency
range (MHz)
Built-in
capacitance
(pF)
Supply voltage
gm
ratio
Rf
Output
Output
level
Standby output
state
1
Version
(kΩ) frequency
Chip
SOT
3V
5V
C
C
D
G
SM5021AAH 4.5 to 5.5 4.5 to 5.5
×
22 to 30
30 to 43
43 to 55
55 to 70
×
8
15
15
15
15
12
15
15
15
15
15
12
15
1
1
2
3
4
1
1
2
3
3
4
3
6.0
3.3
3.9
2.7
2.7
6.0
3.3
3.9
2.7
–
fo
fo
fo
fo
fo
fo
fo
fo
fo
fo
fo
fo
CMOS
CMOS
CMOS
CMOS
CMOS
TTL
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
High impedance
SM5021ABH 2.7 to 5.5 2.7 to 5.5 22 to 30
SM5021ACH 2.7 to 5.5 2.7 to 5.5 30 to 40
SM5021ADH 2.7 to 5.5 2.7 to 5.5 40 to 50
8
8
8
8
8
8
8
8
8
8
8
SM5021AEH 2.7 to 3.6
×
50 to 70
SM5021BAH 4.5 to 5.5 4.5 to 5.5
SM5021BBH 4.5 to 5.5 4.5 to 5.5
SM5021BCH 4.5 to 5.5 4.5 to 5.5
SM5021BDH 4.5 to 5.5 4.5 to 5.5
×
×
×
×
22 to 30
30 to 43
43 to 55
55 to 70
22 to 70
×
TTL
TTL
TTL
SM5021KDH 2.7 to 5.5 2.7 to 5.5 22 to 50
SM5021KEH 2.7 to 3.6 2.7 to 3.6 50 to 70
CMOS
CMOS
TTL
–
SM5021LDH 4.5 to 5.5 4.5 to 5.5
×
22 to 70
–
1. Chip form devices have designation CF5021××.
ORDERING INFORMATION
Devicez
Package
6-pin SOT
Chip form
SM5021××H
CF5021××–2
NIPPON PRECISION CIRCUITS—1