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參數(shù)資料
| 型號(hào)： | ICS843004I |
| 英文描述： | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| 中文描述： | FEMTOCLOCKS -商標(biāo)晶體到3.3伏，2.5伏的LVPECL頻率合成器 |
| 文件頁(yè)數(shù)： | 9/15頁(yè) |
| 文件大小： | 253K |
| 代理商： | ICS843004I |
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843004AGI
www.icst.com/products/hiperclocks.html
REV. A FEBRUARY 11, 2005
9
Integrated
Circuit
Systems, Inc.
ICS843004I
F
EMTO
C
LOCKS
C
RYSTAL
-
TO
-
3.3V, 2.5V LVPECL F
REQUENCY
S
YNTHESIZER
C
RYSTAL
I
NPUT
I
NTERFACE
The ICS843004I has been characterized with 18pF parallel
resonant crystals. The capacitor values shown in Figure 4
Figure 4. C
RYSTAL
I
NPU
t I
NTERFACE
below were determined using a 26.5625MHz 18pF parallel
resonant crystal and were chosen to minimize the ppm error.
ICS843004I
C1
33p
X1
18pF Parallel Crystal
C2
27p
XTAL_OUT
XTAL_IN
T
ERMINATION
FOR
2.5V LVPECL O
UTPUT
Figure 3Aand Figure 3Bshow examples of termination for 2.5V
LVPECL driver. These terminations are equivalent to terminat-
ing 50
to V
CC
- 2V. For V
CCO
= 2.5V, the V
CCO
- 2V is very close to
ground level. The R3 in Figure 3B can be eliminated and the
termination is shown in Figure 3C.
F
IGURE
3C. 2.5V LVPECL T
ERMINATION
E
XAMPLE
R2
50
Zo = 50 Ohm
VCCO=2.5V
R1
50
Zo = 50 Ohm
+
-
2.5V
2,5V LVPECL
Driver
F
IGURE
3B. 2.5V LVPECL D
RIVER
T
ERMINATION
E
XAMPLE
VCCO=2.5V
R1
50
R2
50
Zo = 50 Ohm
R3
18
2,5V LVPECL
Driver
Zo = 50 Ohm
+
-
2.5V
F
IGURE
3A. 2.5V LVPECL D
RIVER
T
ERMINATION
E
XAMPLE
R2
62.5
2.5V
2,5V LVPECL
Driver
R3
250
Zo = 50 Ohm
Zo = 50 Ohm
R4
62.5
2.5V
+
-
R1
250
VCCO=2.5V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS843004 | FEMTOCLOCKS⑩ LVCMOS/CRYSTAL-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843004AG | FEMTOCLOCKS⑩ LVCMOS/CRYSTAL-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843004AGT | FEMTOCLOCKS⑩ LVCMOS/CRYSTAL-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843011C | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS843011CG | FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS843004I-01 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V, 2.5V LVPECL FREQUENCY SYNTHESIZER |
| ICS843004I-04 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL/LVCMOS-TO- 3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843011 | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
| ICS8430-111 | 制造商:ICS 制造商全稱:ICS 功能描述:700MHZ, LOW JITTER DIFFERENTIAL-TO-3.3V LVPECL FREQUENCY SYNTHESIZER |
| ICS843011AG | 制造商:ICS 制造商全稱:ICS 功能描述:FEMTOCLOCKS-TM CRYSTAL-TO- 3.3V LVPECL CLOCK GENERATOR |
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