SM5009 series
FUNCTIONAL DESCRIPTION
Standby Function
5009 AL× series
When INHN goes LOW, the oscillator stops and the oscillator output on Q becomes high impedance.
5009AH×, AK×, AN×, CN× series
When INHN goes LOW, the output on Q becomes high impedance, but internally the oscillator does not stop.
Version
INHN
HIGH (or open)
LOW
Q
Oscillator
Normal operation
Stopped
Any f , f /2, f /4, f /8, f /16 or f /32 output frequency
O
O
O
O
O
O
AL× series
High impedance
Any f , f /2, f /4, f /8, f /16 or f /32 output frequency
HIGH (or open)
LOW
Normal operation
Normal operation
O
O
O
O
O
O
AH×, AK×, AN×, CN×
series
High impedance
Power-saving Pull-up Resistor (AL× series only)
The INHN pull-up resistance changes in response to the input level (HIGH or LOW). When INHN goes LOW
(standby state), the pull-up resistance becomes large to reduce the current consumption during standby.
Current consumption and Output waveform with NPC’s standard crystal
Cb
f [MHz]
30
R [Ω]
17.2
L [mH]
4.36
Ca [fF]
6.46
Cb [pF]
2.26
40
16.8
2.90
5.47
2.08
L
Ca
R
SEIKO NPC CORPORATION —4
SEIKO [ SEIKO EPSON CORPORATION ]
