V C T C X O – Ultra Low Current
Logic: HCMOS
“VM57K” SERIES 5x7 mm
Wave Form: Square Wave
With VM57K design engineers enjoy the benefits of HCMOS output,
VCTCXO stability, ultra low current and miniaturized 5x7 packaging.
VM57K consumes less than 4 mA at 26 MHz +3.3 V with low phase
noise of -130 dBc / Hz at 1 KHz offset.
General Specifications
T
A
=+25°C, V
DD
at specified voltage, load
15 pF
Frequency Range
Output Wave From
Initial Calibration Tolerance
Standard Frequencies
Frequency Stability
vs Temperature
vs Aging
vs Supply Voltage Change
vs Load Change
vs reflow (SMD models)
Typical Operating Temperature
Range (examples)
Input Voltage Range (V
DD
)
Logic High “1”
Logic Low “0”
12.8 MHz
13.0 MHz
14.4 MHz
Current
16.384 MHz
Consumption
19.200 MHz
mA, typical
19.440 MHz
20.000 MHz
26.000 MHz
Rise Time and Fall Time
Duty Cycle (Symmetry)
Start-up Time
Slope Polarity
Linearity
Output Load
Fanout (Drive Capability)
SSB Phase Noise Offset
at +25°C
VM57K3-13.000
RMS Period Jitter
Packaging
Pad 1
Function
MERCURY
Since 1973
Output Voltage
Levels
12.8 MHz ~ 26.0 MHz
CMOS Square
wave.
PRELIMINARY
±2 ppm at +25°C±2°C
12.8, 13.0, 14.4, 15.36, 16.0, 16.384, 16.8, 19.2, 19.44, 19.68, 20.0 and
26.0 MHz (partial list)
±1 ppm , ±1.5 ppm, ±2.0 ppm, ±2.5 ppm, ±3 ppm, ±5 ppm or±10 ppm over
specified operating temperature range
±1.0 ppm max. first year at +25°C
±1.0 ppm max. for a ±10% input voltage change
±0.3 ppm max. for a ±10% loading condition change
±1 ppm max. 1 reflow and measured 24 hours afterwards
0°C to +60°C
0°C to +70°C
-10°C to +60°C
-20 °C to +70°C
-30°C to +60°C
-30°C to +75°C or custom
±5 ppm stability for -40°C to +85°C is also available
+2.8 V
+3.0 V
+3.3 V
(voltage code is “28”)
(voltage code is “3”)
(voltage code is “33”)
1.9 V min.; 2.3 V typical
2.1 V min.; 2.6 V typical
2.4 V min.; 2.9 V typical
0.27 V typical; 0.34V max. 0.29 V typical; 0.36V max. 0.32 V typical; 0.4 V max.
2.3 mA typical
2.4 mA typical
2.6 mA typical
2.5 mA typical
2.6 mA typical
2.8 mA typical
2.6 mA typical
2.8 mA typical
3.1 mA typical
2.8 mA typical
3.0 mA typical
3.2 mA typical
3.2 mA typical
3.3 mA typical
3.6 mA typical
3.2 mA typical
3.4 mA typical
3.7 mA typical
3.2 mA typical
3.4 mA typical
3.7 mA typical
3.6 mA typical
3.8 mA typical
4.1 mA typical
4 n sec. typical. 0.3 V
↔
3.0 V with 15 pF load
50%±5% measured at 1.4 V
10 m. sec. max.
±5~±12 ppm for +1.5 V±1.5V
±5~±12 ppm for +1.5 V±1.5V
Positive:
Increasing control voltage increases output frequency.
10 % max.
15 pF
12 mA typical 17 mA max. (at TTL level)
100 Hz
1 KHz
10 kHz
100 kHz
1 MHz
-80 dBc/Hz
-110 dBc/Hz -130 dBc/Hz
-135 dBc/Hz -142 dBc/Hz
3 ps max. (1 sigma, 1000 samples; with capacitive coupling between V
DD
and gnd)
16 mm tape; 8 mm pitch; 1000 pcs per reel.
Electrical Frequency Tuning
Taiwan: TEL (886)-2-2406-2779, FAX (886)-2-2496-0769, e-mail: sales-tw@mercury-crystal.com
U.S.A.: TEL (1)-909-466-0427, FAX (1)-909-466-0762, e-mail:
sales-us@mercury-crystal.com
MERCURY
Page 1 of 3
Date: Jan. 23, 2005
Rev. 0
MERCURY
www.mercury-crystal.com
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
