3G42C-30N-0.500 [MERCURY]

Oscillator;


型号：	3G42C-30N-0.500
厂家：	MERCURY UNITED ELECTRONICS INC
描述：	Oscillator
文件：	总6页 (文件大小：434K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

V C X O “G” series

Logic: TTL / CMOS

Wave Form: Square

MERCURY

Since 1973

What is a VCXO ?

Crystal

Amplifier

Unlike regular clock oscillator which has fixed output frequency, the output

frequency of a VCXO (also known as “frequency modulator”) can be tuned

±50~±200 ppm up or down from the nominal frequency by varying the

control voltage on the voltage control pin. Varactor, a voltage variable

capacitance tuning diode, is used to achieve this purpose.

Output

Varactor

Voltage Control

Applications of VCXO include (PLL) phase lock loop, SONET/ATM, set-top

boxes, MPEG , audio-video modulations, video game consoles and HDTV sets.

Product Summary:

Package Code

Frequency Range

Assembly Technique

Package Size (mm) [inches]

Thru-Hole Types

12.8 x 20.2 x 5.88H

[0.504 x 0.795 x 0.231]

12.8 x 12.8 x 5.88H

[0.504 x 0.504 x 0.231]

G14

500 kHz ~ 170 MHz

4 pin DIL full size

4 pin DIL half size

Surface Mount Types – Gull Wing

12.8 x 20.2 x 7.6H

[0.504 x 0.795 x 0.300]

12.8 x 12.8 x 7.6H

[0.504 x 0.504 x 0.300]

G24

500 kHz ~ 170 MHz

Gull wing version of G14

Gull wing version of G8

G18

Surface Mount Types – Leadless

9.6 x 11.4 x 1.85H

[0.378 x 0.449 x 0.073]

9.6 x 11.4 x 2.5H

[0.378 x 0.449 x 0.098]

9.6 x 11.4 x 2.5H

[0.378 x 0.449 x 0.098]

9.6 x 11.4 x 4.7H

[0.378 x 0.449 x 0.185]

9.6 x 11.4 x 4.7H

[0.378 x 0.449 x 0.185]

5.0 x 7.0 x 1.7H

[0.197 x 0.275 x 0.067]

5.0 x 7.0 x 1.7H

[0.197 x 0.275 x 0.067]

5.0 x 7.5 x 2.65H

G61

G62

G42

G64

G44

G57

G576

G575

500 kHz ~ 170 MHz

6 pad FR4 Leadless

4 pad FR4 Leadless

6 pad FR4 Leadless

4 pad FR4 Leadless

4 pad Ceramic Leadless

6 pad Ceramic Leadless

6 pad Leadless

500 kHz ~ 170 MHz

2 MHz ~ 60 MHz

500 KHz ~ 170 MHz

[0.197 x 0.295 x 0.104]

MERCURY www.mercury-crystal.com

Taiwan: TEL (886)-2-2695-7099, FAX (886)-2-2695-7473, 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 6

Date: Dec. 1, 2001

Rev. 0

V C X O “G” series

Logic: TTL / CMOS

Wave Form: Square

MERCURY

Since 1973

“G” series General Specifications

T_A=+25°C, V_DD= At specified voltage, CL=15 pF

3.3 V System

V_DD= +3.3 V D.C. ±5%

5.0 V System

V_DD=+5.0 V D.C.±5%

Input Voltage (V_DD)

Control Voltage Center (Vc)= +1.65 V Control Voltage Center (Vc) = +2.5 V

Voltage code is “3"

To tune to the nominal frequency with

Vc = 1.65 V±0.2V

Voltage code is "5"

To tune to the nominal frequency with

Vc = 2.5V V±0.2V

Initial Frequency Accuracy (at+25°C)

Commercial temperature

500 kHz ~ 100 MHz

500 kHz ~ 90 MHz

500 kHz ~ 156 MHz

500 kHz ~ 140 MHz

Frequency

Range

(0°C to +70°C)

Industrial temperature

(-40°C to +85°C)

TTL

2.4 V min.

2.97 min.

2.4 V min.

Vcc – 0.5 min.

Output Voltage HIGH “1”

Output Voltage LOW “0”

Frequency Pulling Range

CMOS

TTL

CMOS

0.4 V max.

0.33 max.

0.5 V max.

From ±30 ppm to ±150 ppm

Control Voltage Range: 0.3 V to 3.0 V

“A”: ±25 ppm over 0°C to +70°C

“C”:±100 ppm over 0°C to +70°C

From ±80 ppm to ±200 ppm

Control Voltage Range: 0.5 V to 4.5 V

“B”:±50 ppm over 0°C to +70°C

Frequency Stability⁽¹⁾

Commercial temp. range (code “C”)

For non-standard please give desired frequency stability after the “C”.

For example “C20” is ±20 ppm over 0 to +70°C

“D”:±25 ppm over -40°C to +85° (not available on all packages)

Frequency Stability⁽¹⁾

Industrial temp. range (code “I”)

“E”:±50 ppm over -40°C to +85°C

“F”:±100 ppm over -40°C to +85°C

For non-standard please give desired frequency stability after the “I”.

For example “I20” is ±20 ppm over -40 to +85°C

5 ~ 10 TTL gates

TTL

Output Load

CMOS

15 ~ 50 pF

5 n Sec. max; 2 n Sec. typical. Measured between 0.4V to 2.4V

(RL=390 Ω; CL=15 pF)

5 n Sec. max; 2 n Sec. typical. Measured between 10% to 90%V_DD

(CL=15 pF)

TTL

Rise Time (Tr) and

Fall Time (Tf)

CMOS

TTL

Duty Cycle

40% min. 60 % max. (measured at +1.4 V)

40% min. 60 % max. (measured at 50% V_DD)

10 m Sec. max. 5 m Sec. typical

10% max.; 6% typical

CMOS

Start-up Time (Ts)

Linearity

Monotonic and Positive: Increasing control voltage always increases output

frequency. Negative slope is also available.

15 ~ 45 mA (frequency dependent)

10 kHz min.

Slope Polarity (Transfer Function)

Current Consumption

Modulation Bandwidth (±3 dB)

Input Impedance

10 kΩ at 10 kHz min.

Storage Temperature

Aging

Jitter, one sigma, 155.520 MHz, +5 V

-40°C to +85°C

±5 ppm per year max.

25 ps typical, 28 ps max.

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

vibration.

MERCURY

Page 2 of 6

Date: Dec. 1, 2001

Rev. 0

V C X O “G” series

Logic: TTL / CMOS

Wave Form: Square

MERCURY

Since 1973

Ordering Information:

Desired pulling

range in ± ppm

Frequency

in MHz

G --

Input

Voltage

Package

Code

Frequency

Stability

Pulling

Range

Code

Nominal

Frequency

“3” for +3.3V

“5” for +5.0V

Choose from A,B,C,

D,E,F,or custom

"M" for maximum

"N" for minimum

"T" for typical (tolerance is ±20%)

Part Number Examples:

3G44B-120T-54.000

represents 54.0 MHz VCXO in G44 package, frequency stability is ±50

ppm from 0°C to +70°C, pullability is ±120 ppm typical, +3.3 V.

Output Waveform:

Transfer Function: Typical response of 5G14C-150N-27.000

(at +25°C, postive transfer)

TTL CMOS

2.4V 90%V_DD

V_OH

+150

+100

+50

1.4V 50%V_DD

0.4V 10%V_DD

0.5

1.5

3.5

4.5

2.5

-50

V_OL

T_H

-100

-150

Control Voltage (V)

" ------ " : Theoretical 0% non-linearity

Duty Cycle = (T_H/ T)x100%

SSB Phase Noise: 155.520 MHz at +3.3V

-60

-70

-80

-90

-100

-110

-120

-130

-140

G series

GL series

10 Hz

-100 Hz

1 kHz

10 kHz

100 kHz

offset

MERCURY

Page 3 of 6

Date: Dec. 1, 2001

Rev. 0

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