Raltron CMC15915CU26-32.768 Ultra low power 32.768khz mems tcxo Datasheet

Ultra Low Power 32.768KHz
MEMS TCXO
Page 1 of 5
CMC159-SERIES
■ Ultra Low power: < 1A
■ Fixed 32.768 kHz
■ No Supply Voltage external bypass capacitors required
■ Frequency Stability over Temperature as low as ±5ppm
■ Small SMD package 1.5 x 0.8 mm
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
CONDITION
VALUE
Min.
Frequency nominal
f0
Supply Voltage
Vs
Ta = -40°C to +85°C
Is
Vs = 1.8V, no load condition,
LVCMOS, Ta = 25°C
Vs = 3.63V max, Ta = -10°C to +70°C
no load condition
Vs = 1.5V to 3.63V, Ta = -40°C to
+85°C, no load condition
Is does not include output stage
current or load.
Core Supply Current
Typ.
UNIT
Max.
32.768
1.5
kHz
3.63
V
A
0.99
1.52
A
Operating Temperature
Ta
Commercial
Industrial
0
-40
+70
+85
C
°C
Frequency Stability vs. Temperature
( without initial offset )
Δf/Ta
Initial offset is defined as the frequency
deviation from the nominal value at
room temperature after reflow
Frequency Stability vs. Temperature
( with initial offset )
Δf/Ta
Initial offset is defined as the frequency
deviation from the nominal value at
room temperature after reflow
Frequency stability vs. Supply Voltage
Δf/Vs
Vs= 1.8V±10%
Vs= 1.5V ~ 3.63V
-5
-10
-20
-10
-13
-22
-0.75
-1.5
+5
+10
+20
+10
+13
+22
+0.75
+1.5
ppm
ppm
ppm
ppm
ppm
ppm
ppm
ppm
100
ms
300
350
380
ms
ms
ms
+1.0
ppm
Power supply Ramp
Ta = -40°C to +85°C, 0 to 90% Vs
Start-up Time
T START
Long Term Frequency Stability
Δf/T
Ta = -40°C ≤ Ta ≤ +60°C, valid output
Ta = +60°C ≤ Ta ≤ +70°C, valid output
Ta = +70°C ≤ Ta ≤ +85°C, valid output
Ta=25°C, Vs=3.3V
Period Jitter RMS
Cycles = 10,000,Ta=25°C,
Vs= 1.5V ~ 3.63V
Long Term Jitter
81920 cycles ( 2.5 sec ), 100 samples
180
-1.0
35
ns
2.5
s p-p
RALTRON ELECTRONICS  10400 N.W . 33rd St  Miam i, Florida 33172  U.S.A.
phone: +1-305-593-6033  fax: +1-305-594-3973  e-mail: [email protected]  internet: http://www.raltron.com
Ultra Low Power 32.768KHz
MEMS TCXO
2 of 5
CMC159-SERIES
OUTPUT CHARACTERISTICS
VALUE
LVCMOS
PARAMETER
SYMBOL
VOH
CONDITION
Min
Vs= 1.5V ~ 3.63V. IOH= -1A, 15 pF Load
Typ.
Max
UNIT
0.9 Vs
V
Output Levels
VOL
0.1Vs
Vs= 1.5V ~ 3.63V. IOL= 1A, 15 pF Load
DC
Duty Cycle
Rise/ Fall Time
48
Tr/ Tf
10-90% Vs, 15 pF Load, Vs=1.5V to 3.63V
10-90% Vs, 5 pF Load, Vs≥1.62V
SYMBOL
CONDITION
100
V
52
%
200
50
ns
ns
VALUE
Nano DriveTM Programmable
Reduced Swing Output
PARAMETER
VOH
Output Levels
VOL
Duty Cycle
DC
Rise/ Fall Time
Tr/ Tf
AC- couple Programmable
Output Swing
V sw
Programmable Output Voltage Swing
Tolerance
Min
DC bias programmable output voltage
High range
Vs=1.5V~3.63V, IOH= -0.2A, 10pF Load
See Table 1
DC bias programmable output voltage
Low range
Vs=1.5V~3.63V, IOH= 0.2A, 10pF Load
See Table 1
Typ.
V
0.35 to 0.80
V
30-70%( VOL /VOH ), 10 pF Load
52
%
200
ns
0.20 to 0.80
-0.055
Ta = -40°C to +85°C, Vs=1.5~3.63V
UNIT
0.6 to 1.225
48
Vs= 1.5V ~ 3.63V, 10 pF Load ,
IOH / IOL=±0.2A
This output is intended for a receiver that
is AC- coupled, see table 1
Max
V
0.055
V
Table1. NanoDriveTM Output levels
NanoDriveTM
VOH ( V )
VOL ( V )
Swing ( mV )
D26
1.2
0.6
600±55
1.8V logic compatible
D14
1.1
0.4
700±55
1.8V logic compatible
D74
0.7
0.4
300±55
XTAL compatible
AA3
-
-
300±55
XTAL compatible
RALTRON ELECTRONICS  10400 N.W . 33rd St  Miam i, Florida 33172  U.S.A.
phone: +1-305-593-6033  fax: +1-305-594-3973  e-mail: [email protected]  internet: http://www.raltron.com
Ultra Low Power 32.768KHz
MEMS TCXO
3 of 5
CMC159-SERIES
MECHANICAL DIMENSIONS AND PIN FUNCTIONING
RECONMENDED LAND PATTERN
BOTTOM VIEW

PIN
SYMBOL
1
GND
FUNCTION
2
OUTPUT
3
Vs
Supply Voltage 2
4
GND
Electrical Ground
Electrical Ground
Output Signal 1

Note: 1. Oscillator output signal. When interfacing to an MCU’s XTAL, the CLK Out is typically connected to the
Receiving IC’s XIN pin. Oscillator includes an internal driver. The output swing and operation is not dependent on capacitive
loading.
2. Connect to supply voltage 1.5V≤Vs≤3.63V for operation over -40°C to +85°C temperature range. Under normal operation
Conditions, Vs does not require external bypass/ decoupling capacitor(s). Internal power supply filtering will reject more than
±150mV p-p with frequency components through 10MHz.
RALTRON ELECTRONICS  10400 N.W . 33rd St  Miam i, Florida 33172  U.S.A.
phone: +1-305-593-6033  fax: +1-305-594-3973  e-mail: [email protected]  internet: http://www.raltron.com
Ultra Low Power 32.768KHz
MEMS TCXO
4 of 5
CMC159-SERIES
ENVIRONMENTAL
REFLOW PROFILE
Soldering
MIL-STD-883F, Method 2003
Moisture Sensitivity Level
MSL 1 at 260°C
Temperature Cycle
JESD22, Method A104
Vibration
MIL-STD-883F, Method 2007
Mechanical Shock
MIL-STD-883F, Method 2002
Storage Temperature
-65° ……. +150°C
REFLOW PROFILE
tP
TP
Critical Zone
TL to TP
Ramp-up
TL
tL
TSMAX
Temp.
[°C]
TSMIN
Ramp-down
tS Preheat
t[25°C] to Peak
Temperature Min Preheat
Temperature Max Preheat
Time (TSMIN to TSMAX)
Temperature
Peak Temperature
Ramp-up rate
Ramp-down rate
Time within 5°C of Peak Temperature
Time t[25°C] to Peak Temperature
Time [sec]
Recommended Solder Reflow Profile
TSMIN
TSMAX
tS
TL
TP
RUP
RDOWN
tP
t[25°C] to Peak
150°C
175°C
60-180 sec.
217°C
260°C
3°C/sec max.
6°C/sec max.
10 sec max.
10 sec.
RALTRON ELECTRONICS  10400 N.W . 33rd St  Miam i, Florida 33172  U.S.A.
phone: +1-305-593-6033  fax: +1-305-594-3973  e-mail: [email protected]  internet: http://www.raltron.com
Ultra Low Power 32.768KHz
MEMS TCXO
5 of 5
CMC159-SERIES
Time
tL
60-150 sec.
ORDERING INFORMATION
SERIES
SUPPLY VOLTAGE
(V)
Frequency
Stability
TEMP
RANGE
(°C )
Output Signal
-
OUTPUT FREQUENCY
(kHz)
1: LVCMOS
NanoDriveTM Reduced
Swing Output setting
options
A: AC-coupled
CMC159
15: Vs=1.5V~3.63V
A: ±75 ppm
B: ±100ppm
C: ±200ppm
U: -10~70
D: DC- coupled
32.768
-
V: -40~85
26:D26
14:D14
74:D74
3:AA3
See table 1
APPROVALS
Eng. approval, date: SP, 07 / 25 / 2016
Created by, date:
SP, 07 / 25 / 2016
Revision: A
RALTRON ELECTRONICS  10400 N.W . 33rd St  Miam i, Florida 33172  U.S.A.
phone: +1-305-593-6033  fax: +1-305-594-3973  e-mail: [email protected]  internet: http://www.raltron.com
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