Datasheet > 8430AYI-71LF

8430AYI-71LF

更新时间： 2024-02-05 07:39:11

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
16页	211K
描述
Clock Generator, PQFP32

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8430AYI-71LF 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	包装说明：	QFP, QFP32,.35SQ,32
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.33
JESD-30 代码：	S-PQFP-G32	JESD-609代码：	e3
湿度敏感等级：	3	端子数量：	32
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	QFP
封装等效代码：	QFP32,.35SQ,32	封装形状：	SQUARE
封装形式：	FLATPACK	峰值回流温度（摄氏度）：	260
电源：	3.3 V	认证状态：	Not Qualified
子类别：	Clock Generators	标称供电电压：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn) - annealed
端子形式：	GULL WING	端子节距：	0.8 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	30
Base Number Matches：	1

8430AYI-71LF 数据手册

ICS8430I-71

Integrated

Circuit

Systems, Inc.

700MH

Z, LOW

ITTER, CRYSTAL

NTERFACE

LVCMOS-TO-3.3V LVPECL FREQUENCY

SYNTHESIZER

POWER CONSIDERATIONS

This section provides information on power dissipation and junction temperature for the ICS8430I-71.

Equations and example calculations are also provided.

1. Power Dissipation.

The total power dissipation for the ICS8430I-71 is the sum of the core power plus the power dissipated in the load(s).

The following is the power dissipation for V_CC= 3.3V + 5% = 3.465V, which gives worst case results.

NOTE: Please refer to Section 3 for details on calculating power dissipated in the load.

•

Power (core)_MAX= V_{CC_MAX}* I_{EE_MAX}= 3.465V * 140mA = 485mW

Power (outputs)_MAX= 30.2mW/Loaded Output pair

If all outputs are loaded, the total power is 2 * 30.2mW = 60.4mW

Total Power_{_MAX}(3.465V, with all outputs switching) = 485mW + 60.4mW = 545.4mW

2. Junction Temperature.

Junction temperature, Tj, is the temperature at the junction of the bond wire and bond pad and directly affects the reliability of the

device.The maximum recommended junction temperature for HiPerClockS^TMdevices is 125°C.

The equation for Tj is as follows: Tj = θ_JA* Pd_total + T_A

Tj = JunctionTemperature

θ_JA= Junction-to-AmbientThermal Resistance

Pd_total =Total Device Power Dissipation (example calculation is in section 1 above)

T_A= AmbientTemperature

In order to calculate junction temperature, the appropriate junction-to-ambient thermal resistance θ_JAmust be used. Assuming a

moderate air flow of 200 linear feet per minute and a multi-layer board, the appropriate value is 42.1°C/W perTable 8 below.

Therefore, Tj for an ambient temperature of 85°C with all outputs switching is:

85°C + 0.485W * 42.1°C/W = 105.4°C. This is well below the limit of 125°C.

This calculation is only an example.Tj will obviously vary depending on the number of loaded outputs, supply voltage, air flow,

and the type of board (single layer or multi-layer).

TABLE 8. THERMAL R^ESISTANCEθ_JAFOR 32-PIN LQFP, FORCED CONVECTION

θ_JAbyVelocity (Linear Feet per Minute)

200

55.9°C/W

42.1°C/W

500

50.1°C/W

39.4°C/W

Single-Layer PCB, JEDEC Standard Test Boards

Multi-Layer PCB, JEDEC Standard Test Boards

67.8°C/W

47.9°C/W

NOTE: Most modern PCB designs use multi-layered boards.The data in the second row pertains to most designs.

8430AYI-71

www.icst.com/products/hiperclocks.html

REV. B JANUARY 27, 2005

1...8 9 101112 13 14...16

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与8430AYI-71LF相关器件

型号	品牌	描述	获取价格	数据表
8430AYI-71LFT	IDT	Clock Generator, PQFP32	获取价格
8430BY-71	IDT	Clock Generator, 700MHz, CMOS, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32	获取价格
8430BY-71T	IDT	Clock Generator, 700MHz, CMOS, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32	获取价格
8430BYI-71	IDT	PLL/Frequency Synthesis Circuit	获取价格
8430BYI-71LF	IDT	Clock Generator, 700MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BBA, LQFP	获取价格
8430BYI-71LFT	IDT	Clock Generator, 700MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, MS-026BBA, LQFP	获取价格

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