SR-B2A71-FREQ [NEL]
Frequency Range: 250.0 MHz-1.7 GHz; 频率范围： 250.0兆赫， 1.7千兆赫
| 型号： | SR-B2A71-FREQ |
| 厂家： | 
NEL FREQUENCY CONTROLS,INC |
| 描述： | Frequency Range: 250.0 MHz-1.7 GHz |
| 文件： | 总2页 (文件大小：405K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Differential Sine Wave
SR-A2A70
Series
SR-A2A70 Series 0435A Rev J
Frequency Range: 250.0 MHz-1.7 GHz
Description
The SR-A2A70 Series tf quarꢂz crysꢂal tscillaꢂtrs ꢀrtvide Differenꢂial Sine Wave signals.
This device is ꢂt tꢀeraꢂe using ꢀtsiꢂive vtlꢂage and uses pulꢂiꢀle grtund ꢀins ftr ipꢀrtved
signal inꢂegriꢂy.
Size, mm
Features
9 x 14
• High Reliability - NEL HALT/HASS
qualified for crystal oscillator start-up
conditions
• Cover connected to ground
• 3.3V and 2.5V versions available
• Wide frequency range – 25ꢀ.ꢀMHz
to 1.7GHz
I/O
8 pad
• User specified tolerance available
• Will withstand SMD reflow temperatures
of 183°C for 4 minutes maximum
• High shock resistance, to 1ꢀꢀꢀg
Supply Voltage
3.3V / 2.5V
• Patent Pending, harmonic
multiplication for
extremely low jitter
Creating a Part Number
• High frequency output
eliminates the need for
PLL multiplication
SR - A2A7X - FREQ
Tolerance/Performance
ꢀ
1
7
1ꢀꢀ ppm ꢀ-7ꢀ°C
5ꢀ ppm ꢀ-7ꢀ°C
25 ppm ꢀ-7ꢀ°C
Package Code
SR
8 pad 9x14 mm SMD
• Stabilities over tempera-
tures as low as 2ꢀppm
eliminates SAW oscillator
temperature problems
9 Customer Specific
Input Voltage
A
B
2ꢀ ppm ꢀ-7ꢀ°C
5ꢀ ppm -4ꢀ to +85°C
Code
A
Specification
3.3 V
2.5 V
C ±±11 ꢀꢀp ꢁ-1 ꢂt +85°C
B
Drawing Specifications
Electrical Connections
Pin
±
2
3
-
5
6
7
8
Ctnnecꢂitn
VCC
Grtund
NC tr Grtund
Q Ouꢂꢀuꢂ
/Q Ouꢂꢀuꢂ
Grtund
Rectppended Btard Laytuꢂ
Dipensitns shtwn in inches (pp).
The metallic center pad was designed for
mechanical support. Grounding of this pad is
optional. It measures 0.088 x 0.190 NOM
(2.24 x 4.83 NOM).
For the most up to date
specifications on each NEL
product, log on to our
website—www.nelfc.com
Grtund
Enable
357 Beloit Street, P.O. Box 457, Burlington, WI 53105-0457 U.S.A.
Phone: 262-763-3591 Fax: 262-763-2881 Email: nelsales@nelfc.com www.nelfc.com
Differential Sine Wave
SR-A2A70 Series 0435A Rev J
Frequency Range: 250.0MHz-1.7 GHz
Operating Conditions and Output Characteristics
Electrical Characteristics
Parameter
Symbol
Conditions
Min
251.1 MHz
—
—
1.61 V
—
1.7 VCC
—
ꢁ±11ꢀꢀp
Typical
—
ꢁ25dBc
—
1.85 V
1.3 ꢀsec
—
Max
±.7 GHz
ꢁ21dBc
ꢁ61dBc
—
1.5 ꢀsec
—
Frequency
—
—
—
Harptnic Sꢀuritus
Ntnharptnic Sꢀuritus
Ouꢂꢀuꢂ Vtlꢂage
Jiꢂꢂer RMS(5)
—
—
—
—
—
—
—
VPꢁP
—
—
—
Enable Vtlꢂage(3)
Disable Vtlꢂage
Frequency Sꢂabiliꢂy(±)
—
—
1.3 VCC
+±11ꢀꢀp
dF/F
Overall ctndiꢂitns including:
vtlꢂage, calibraꢂitn, ꢂepꢀ.,
±1 yr aging, shtck, vibraꢂitn
@±11Hz
Phase Ntise(2)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
ꢁ81 dBc/Hz
ꢁ±±5 dBc/Hz
ꢁ±31 dBc/Hz
ꢁ±31 dBc/Hz
ꢁ±35 dBc/Hz
ꢁ±35 dBc/Hz
@±kHz
@±1kHz
@±11kHz
@±MHz
@±1MHz
General Characteristics
Parameter
Symbol
Conditions
3.3V ± 5%
51 thp ꢂerpinaꢂitn
Ltw level Ouꢂꢀuꢂ Currenꢂ
—
Min
Typical
3.3 V
—
Max
3.-65 V
±21 pA
±51.1 pA
Suꢀꢀly Vtlꢂage
VCC
ICC
IO
3.±35 V
1.1 pA
1.1 pA
Suꢀꢀly Currenꢂ
Ouꢂꢀuꢂ Currenꢂ
—
—
—
—
º
º
Oꢀeraꢂing Tepꢀeraꢂure
Sꢂtrage Tepꢀeraꢂure
Lead Tepꢀeraꢂure
TA
TS
TL
1 C
71 C
º
º
—
ꢁ55 C
±25 C
º
Stldering, ±1 sec.
—
311 C
Ltad(-)
51 thp ꢂerpinaꢂitn
ꢂS
Sꢂarꢂꢁuꢀ Tipe
—
—
2 ps
±1 ps
Environmental and Mechanical Characteristics
Mechanical Shtck
Therpal Shtck
Vibraꢂitn
Per MILꢁSTDꢁ212, Meꢂhtd 2±3, Ctndiꢂitn E
Per MILꢁSTDꢁ833, Meꢂhtd ±1±±, Ctndiꢂitn A
1.161" dtuble apꢀliꢂude ±1 Hz ꢂt 55 Hz, 35g’s 55 Hz ꢂt 2111 Hz
º
Stldering Ctndiꢂitn 311 C ftr ±1 sectnds
Footnotes:
±) Sꢂandard frequency sꢂabiliꢂy (±21, ±25, ±51 ꢀꢀp ꢃ tꢂhers available).
2) Phase Ntise characꢂerizaꢂitn available. Phase Ntise is frequency deꢀendenꢂ, ꢀhase ntise sꢀecificaꢂitn
references a ±.1GHz ꢀarꢂ.
3) Oꢀen ꢂt enable ꢀin alst enables ꢂhe tuꢂꢀuꢂ.
-) Inꢂernally AC ctuꢀled tuꢂꢀuꢂ.
5) Jiꢂꢂer ꢀerftrpance is frequency deꢀendenꢂ. Please ctnꢂacꢂ facꢂtry ftr full Aertflex characꢂerizaꢂitn.
RMS jiꢂꢂer bandwidꢂh tf ±2kHz ꢂt 21MHz.
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