SH3000UM SEMTECH [Semtech Corporation], SH3000UM Datasheet - Page 4

• Manufacturer Part Number: SH3000UM
• Manufacturer: SEMTECH [Semtech Corporation]

Electrical Characteristics
Crystal Oscillator
32.768kHz RC Oscillator
©2006 Semtech Corp.
POWER MANAGEMENT
*Note: V
*Note: After power-up, pin CLK32 is disabled, pin R
Parameter
Crystal operating frequency
CLK32 duty cycle
Start-up time
XIN/XOUT padding capacitance after power-up
Minimum X
Maximum X
Padding capacitance resolution
X
X
CLK32 frequency stability (crystal-dependent)
CLK32 cycle-to-cycle jitter
CLK32 rise/fall time (10pF load)
CLK32 logic output low (0.5mA load)
CLK32 logic output high (0.5mA load)
Parameter
External 1MΩ referenced nominal frequency
Internal 1MΩ referenced nominal frequency
CLK32 duty cycle*
Programmed frequency accuracy at 25°C
Absolute accuracy (temp. & supply external 1MΩ)
Absolute accuracy (temp. & supply internal 1MΩ)
Frequency temperature stability (ext. 1MΩ)
Frequency temperature stability (int. 1MΩ)
Power on start-up time
CLK32 cycle-to-cycle jitter*
external reference resistor.
IN
IN
switching threshold
to CLK32 delay
DD
here is V
IN
IN
/X
/X
OUT
OUT
DD
padding capacitance
padding capacitance
during normal operation and V
(continued)
REF
BAK
is also disabled, and the oscillator is set to operate without the
during battery backup.
Not authorized for release outside of Semtech
Symbol
Symbol
4
C
C
C
C
F
V
F
F
DC
V
T
V
DC
F
F
T
F
T
F
F
T
F
MAX
PUP
RES
J
EXT
J
MIN
INT
OP
RF
OH
DE
SE
ST
TH
OL
ST
ST
DI
SI
D
S
Min
-0.5
Min
25
40
-1
32.768
32.768
32.768
-0.25
12.5
0.05
0.25
Typ
Typ
100
200
0.6
0.5
0.1
10
40
10
±2
±3
70
2
1
Max
0.5
Max
75
3
60
+1
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SH3003
Ref VDD*
ppm/°C
- DRAFT
ppm/°C
ppm/°C
Units
secs
Units
kHz
kHZ
kHZ
pF
pF
pF
pF
μs
ns
%
%
V
V
μs
%
%
%
%
%