28GSR57D-50N-40.000 [MERCURY]
Oscillator;
| 型号： | 28GSR57D-50N-40.000 |
| 厂家： | 
MERCURY UNITED ELECTRONICS INC |
| 描述： | Oscillator |
| 文件： | 总3页 (文件大小：104K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
V C X O (VOLTAGE CONTROLLED CRYSTAL OSCILLATORS)
“GSR57” series 5x7 mm Wave Form: True Sine Wave
MERCURY
Since 1973
VCXO with true sine wave output has never been offered in such a
small package in the industry – the GSR57 (5x3.2x1.0mm).
GSR57 features low phase noise (<130 dBc / Hz
at 1 KHz), low power (<20 m W) and wide supply voltage range.
Applications include telecommunication systems and mobile phones.
General SpecificationsT A=+25°C, VDD at specified voltage, load 10 K Ω // 10 pF
Mercury Product Series
Frequency Range
Output Wave Form
GSR57
10 MHz ~40.0 MHz
True Sine Wave
PRELIMINARY
VDD = +2.7 V D.C. min. +5.0 V D. C. max.
Voltage codes: “28” for +2.8 V; “3” for +3.3 V; “5” for +5.0 V
Input Voltage Range (VDD)
Commercial
Stability code “A”:±25 ppm over 0°C to +70°C
Stability code “B”:±50 ppm over 0°C to +70°C
(0°C to +70°C)
Temperature code is ‘C”
Stability code “C”: ±100 ppm over 0°C to +70°C”)
If non-standard please enter the desired stability after the “C”.
For example “C20” represents ±20 ppm over 0 to +70°C
Frequency
Stability(1)
Stability code “D”:±25 ppm over -40°C to +85°C
Stability code “E”:±50 ppm over -40°C to +85°C
Stability code “F”:±100 ppm over -40°C to +85°C
If non-standard please enter the desired stability after the “I”.
Industrial (extended)
(-40°C to +85°C)
Temperature code is ‘I”
For example “I20” represents ±20 ppm over -40 to +85°C
Output Level
Output Load
1.0 V peak-to-peak typical
10 K Ω // 10 pF
For 50 ohm load, please refer to
Mercury “GS” series
Harmonic Distortion
Current Consumption (typical)
Start-up Time
< -25 dBc
1.2 mA VDD = +5 V; 1.1 mA VDD = +3.3 V; 1 mA VDD = +2.7 V
2 m sec. typical
Voltage Control Range
Frequency Deviation Range
Linearity
0.0 V to VDD with control voltage center at 50% of VDD
± 50 ppm typical
±10 % max.
Slope Polarity
Positive. Increasing control voltage increases output frequency.
Input Impedance
> 0.5 MΩ
Frequency Response
25 KHz min.
3 dB Modulation Band Width
25 KHz min.
Phase Noise
Aging
< 130 dBc /Hz at 1 KHz offset
±5 ppm per year max.
Packaging
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.
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: Apr. 19, 2005
Rev. 1
V C X O (VOLTAGE CONTROLLED CRYSTAL OSCILLATORS)
“GSR57” series 5x7 mm Wave Form: True Sine Wave
MERCURY
Since 1973
Part Number Format and Example
"= Please specify
Example: 28GSR57A-60T-13.000
Explanation: GSR57 Sine wave VCXO, +2.8 V supply voltage, ±25 ppm frequency stability over 0 to +70°C , ±60 ppm
typical pulling range, 13.000 MHz
"
28
n
"
GSR57 A
"
60
q
"
T
r
"
13.000
s
—
—
o
p
n: Voltage codes: “”28” for +2.8 V, “3” for +3.3 V; “5” for +5.0 V
o: Product series p: Frequency stability code: “A” ~ “F” or custom. See table above.
q: Frequency deviation range in ppm.
r: Frequency deviation tolerance: “N” for minimum; “M” for maximum; “T” for typical (±20%).
s: Frequency in MHz
GSR57 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
4
3
2
_ GSR57_
M E C
3
2
4
1
1
5.08 [0.200]
typical
bottom view
2.2[0.086]
Pad 1
Voltage Control
Ground
Pad 2
Pad 3
Pad 4
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.
note: 0.01 uF decoupling capacitor built-in
MERCURY
Page 2 of 3
Date: Apr. 19, 2005
Rev. 1
V C X O (VOLTAGE CONTROLLED CRYSTAL OSCILLATORS)
“GSR57” series 5x7 mm Wave Form: True Sine Wave
MERCURY
Since 1973
Environment Performance Specifications
Green Requirement
Pb (lead) free, RoHS compliant
Storage temp. range -55 to +125°C
Humidity
Hermetic seal
Solderability
Reflow
85% RH, 85°C, 48 hours
Leak rate 2x10-8 ATM-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 1 of 3
Date: Apr. 19, 2005
Rev. 1
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