Datasheet > 40002A01

40002A01

更新时间： 2022-09-19 00:08:56

品牌	Logo	应用领域
矽成 - ICSI		/
页数	文件大小	规格书
12页	197K
描述
FEMTOCLOCKS? CRYSTAL-TO LVCMOS/LVTTL FREQUENCY SYNTHESIZER

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40002A01 数据手册

ICS840002-01

FEMTOCLOCKS™ CRYSTAL-TO-

LVCMOS/LVTTL FREQUENCY SYNTHESIZER

Integrated

Circuit

Systems, Inc.

TABLE 4. CRYSTAL CHARACTERISTICS

Parameter

Test Conditions

Minimum

Fundamental

Typical Maximum Units

Mode of Oscillation

Frequency

MHz

Equivalent Series Resistance (ESR)

Shunt Capacitance

Drive Level

NOTE: Characterized using an 18pF parallel resonant crystal.

TABLE 5A. AC CHARACTERISTICS, V_DD= V_DDA= V_DDO= 3.3V 5%, TA = -30°C TO 85°C

Symbol Parameter

Test Conditions

F_SEL[1:0] = 00

Minimum Typical Maximum Units

140

112

175

140

MHz

f_OUT

Output Frequency

F_SEL[1:0] = 01

F_SEL[1:0] = 10 or 11

tsk(o)

tjit(Ø)

Output Skew; NOTE 1, 3

156.25MHz (1.875MHz - 20MHz)

125MHz (1.875MHz - 20MHz)

62.5MHz (1.875MHz - 20MHz)

20% to 80%

0.47

0.57

0.51

RMS Phase Jitter (Random);

NOTE 2

t_R/ t_F

odc

Output Rise/Fall Time

Output Duty Cycle

200

700

NOTE 1: Defined as skew between outputs at the same supply voltages and with equal load conditions.

Measured at V_DDO/2.

NOTE 2: Please refer to the Phase Noise Plot.

NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.

TABLE 5B. AC CHARACTERISTICS, V_DD= V_DDA= 3.3V 5%, V_DDO= 2.5V 5%, TA = -30°C TO 85°C

Symbol Parameter

Test Conditions

F_SEL[1:0] = 00

Minimum Typical Maximum Units

140

112

175

140

MHz

f_OUT

Output Frequency

F_SEL[1:0] = 01

F_SEL[1:0] = 10 or 11

tsk(o)

tjit(Ø)

Output Skew; NOTE 1, 3

156.25MHz (1.875MHz - 20MHz)

125MHz (1.875MHz - 20MHz)

62.5MHz (1.875MHz - 20MHz)

20% to 80%

0.47

0.55

0.49

RMS Phase Jitter (Random);

NOTE 2

t_R/ t_F

odc

Output Rise/Fall Time

Output Duty Cycle

200

700

NOTE 1: Defined as skew between outputs at the same supply voltages and with equal load conditions.

Measured at V_DDO/2.

NOTE 2: Please refer to the Phase Noise Plot.

NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.

840002AG-01

www.icst.com/products/hiperclocks.html

REV.B JANUARY 13, 2006

1 2 345 6 7...12

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