M57K28-19.680-2.5/-30+60 [MERCURY]

Oscillator;


型号：	M57K28-19.680-2.5/-30+60
厂家：	MERCURY UNITED ELECTRONICS INC
描述：	Oscillator
文件：	总3页 (文件大小：128K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

MERCURY

Since 1973

T C X O – Ultra Low Current

“M57K” SERIES 5x7 mm

Logic: HCMOS

Wave Form: Square Wave

With M57K design engineers enjoy the benefits of HCMOS output,

TCXO stability, ultra low current and miniaturized 5x7 packaging.

M57K consumes less than 4 mA at 26 MHz +3.3 V with low phase

noise of -130 dBc / Hz at 1 KHz offset. M57K also features Tri-state

option on pad 1. Oscillator can be tuned off by grounding the pad 1 to

further reduce the power.

General Specifications

T_A=+25°C, V_DDat specified voltage, load 15 pF

Frequency Range

Output Wave From

Initial Calibration Tolerance

12.8 MHz ~ 26.0 MHz

CMOS Square wave.

±2 ppm at +25°C±2°C

PRELIMINARY

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)

Standard Frequencies

Frequency Stability

vs Temperature

vs Aging

±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

vs Supply Voltage Change ±1.0 ppm max. for a ±10% input voltage change

vs Load Change

vs reflow (SMD models)

±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

-20 °C to +70°C

±5 ppm stability for -40°C to +85°C is also available

0°C to +70°C

-30°C to +60°C

-10°C to +60°C

-30°C to +75°C or custom

Typical Operating Temperature

Range (examples)

+2.8 V

(voltage code is “3”)

+3.0 V

(voltage code is “3”)

+3.3 V

(voltage code is “33”)

Input Voltage Range (V

)

Output Voltage

Levels

Logic High “1”

Logic Low “0”

12.8 MHz

1.9 V min.; 2.3 V typical

0.27 V typical; 0.34V max. 0.29 V typical; 0.36V max. 0.32 V typical; 0.4 V max.

2.1 V min.; 2.6 V typical

2.4 V min.; 2.9 V typical

2.3 mA typical

2.5 mA typical

2.6 mA typical

2.8 mA typical

3.2 mA typical

3.6 mA typical

2.4 mA typical

2.6 mA typical

2.8 mA typical

3.0 mA typical

3.3 mA typical

3.4 mA typical

3.8 mA typical

2.6 mA typical

2.8 mA typical

3.1 mA typical

3.2 mA typical

3.6 mA typical

3.7 mA typical

4.1 mA typical

13.0 MHz

14.4 MHz

Current Consumption 16.384 MHz

mA, typical

19.200 MHz

19.440 MHz

20.000 MHz

26.000 MHz

Rise Time and Fall Time

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.

Duty Cycle (Symmetry)

Start-up Time

Output Load

15 pF

Fanout (Drive Capability)

12 mA typical 17 mA max. (at TTL level)

When connected to ground: Output is disabled (oscillator is off).

When no connection or connected to logic high: TCXO output

Disable time is 10 m sec. typical.

Pad 1 Options

Enable time (when ground is removed from pad 1) is 10 m sec. typical.

SSB Phase

Offset

100 Hz

1 KHz

10 kHz

100 kHz

1 MHz

MERCURY

www.mercury-crystal.com

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

Since 1973

V C T C X O – Ultra Low Current

“M57K” SERIES 5x7 mm

Logic: HCMOS

Wave Form: Square Wave

Noise

at +25°C

M57K3-13.000

-80 dBc/Hz

-110 dBc/Hz -130 dBc/Hz

-135 dBc/Hz -142 dBc/Hz

RMS Period Jitter

Packaging

3 ps max. (1 sigma, 1000 samples; with capacitive coupling between V_DDand gnd)

16 mm tape; 8 mm pitch; 1000 pcs per reel.

⁽¹⁾Inclusive of 25°C tolerance, operating temperature range, ±10% input voltage variation, load change, aging, shock and vibration.

Part Number Format and Example

"= Please specify

Example: M57K3-20.000-2.5/-30+75

Explanation: Ultra low current VCTCXO 20.000 MHz; +3.0 V supply voltage; ±2.5 ppm over -30°C to +75°C frequency stability.

With Tri-state option on pad 1.

M57K

—

20.000 —

2.5

⁄

-30+75

n: Product series; o: Voltage codes: “28” for +2.8V; “3” for +3.3 V; “33” for +3.3 V p: Frequency in MHz;

q: Frequency stability in ppm; r Operating temperature range in °C

M57K Package Dimensions and Recommended Pad Layout:

unit mm[inches]

[0.275±0.006]

7.00±0.15

[0.024]

0.6

[0.055]

1.4

M57K_

M E C

5.08 [0.200]

typical

bottom view

2.2[0.086]

Pad 1

This pad must be

left floating

Pad 2

Pad 3

Pad 4

Ground

Output

Supply voltage

5.08 [0.200]

Chamfered pad is pad No. 1. Count counter-clockwise when looking at top view.

Count clockwise when looking at bottom view.

0.01 uF decoupling capacitor built-in

MERCURY

Page 2 of 3

Date: Feb. 6, 2002

Rev. 1

MERCURY

Since 1973

V C T C X O – Ultra Low Current

“M57K” SERIES 5x7 mm

Logic: HCMOS

Wave Form: Square Wave

Environment Performance Specifications

RoHS Compliance

Pb (lead) free

Storage temp. range -55 to +125°C

Humidity

Hermetic seal

Solderability

Reflow

85% RH, 85°C, 48 hours

Leak rate 2x10^-8ATM-cm³/sec max.

MIL-STD-202F method 208E

260°C for 10 sec.

Vibration

Shock

MIL-STD-202F method 204, 35G, 50 to 2000 Hz

MIL-STD-202F method 213B, test condi. E, 1000GG ½ sine wave

RECOMMENDED REFLOW SOLDERING PROFILE

MERCURY

Page 3 of 3

Date: Jan. 23, 2005

Rev. 0

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