Datasheet > 853S111AYILFT

853S111AYILFT

更新时间： 2024-02-22 03:32:50

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
20页	298K
描述
Differential-to-LVPECL/ECL Fanout Buffer

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853S111AYILFT 数据手册

853S111AI DATA SHEET

3. Calculations and Equations.

The purpose of this section is to calculate the power dissipation for the LVPECL output pair.

LVPECL output driver circuit and termination are shown in Figure 6.

V_CCO

V_OUT

50Ω

V_CCO- 2V

Figure 6. LVPECL Driver Circuit and Termination

To calculate worst case power dissipation into the load, use the following equations which assume a 50 load, and a termination voltage of

V_CCO– 2V.

•

For logic high, V_OUT= V_{OH_MAX}= V_{CCO_MAX}– 0.85V

(V_{CCO_MAX}– V_{OH_MAX}) = 0.85V

For logic low, V_OUT= V_{OL_MAX}= V_{CCO_MAX –}1.59V

(V_{CCO_MAX}– V_{OL_MAX}) = 1.59V

Pd_H is power dissipation when the output drives high.

Pd_L is the power dissipation when the output drives low.

Pd_H = [(V_{OH_MAX}– (_{VCCO_MAX}– 2V))/R_L] * (V_{CCO_MAX}– V_{OH_MAX}) = [(2V – (V_{CCO_MAX}– V_{OH_MAX}))/R_L] * (V_{CCO_MAX}– V_{OH_MAX}) =

[(2V – 0.85V)/50] * 0.85V = 19.55mW

Pd_L = [(V_{OL_MAX}– (V_{CCO_MAX}– 2V))/R_L] * (V_{CCO_MAX}– V_{OL_MAX}) = [(2V – (V_{CCO_MAX}– V_{OL_MAX}))/R_L] * (V_{CCO_MAX}– V_{OL_MAX}) =

[(2V – 1.59V)/50] * 1.59V = 13.04mW

Total Power Dissipation per output pair = Pd_H + Pd_L = 32.59mW

LOW SKEW, 1-TO-10, DIFFERENTIAL-TO-LVPECL/ECL FANOUT

BUFFER

Rev A 6/30/15

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型号	品牌	描述	获取价格	数据表
853S111B	IDT	Low Skew, 1-to-10, Differential-to-2.5V, 3.3V LVPECL/ECL Fanout Buffer	获取价格
853S111B_16	IDT	Low Skew, 1-to-10, Differential-to-2.5V, 3.3V LVPECL/ECL Fanout Buffer	获取价格
853S111B_17	IDT	Low Skew Different ial-to-2 .5V, 3.3V LVPECL/ECL	获取价格
853S111BI	RENESAS	Low Skew, 1-to-10 Differential-to-2.5V, 3.3V LVPECL / ECL Fanout Buffer	获取价格
853S111BKILF	IDT	Low Skew, 1-to-10, Differential-to-2.5V, 3.3V LVPECL/ECL Fanout Buffer	获取价格
853S111BKILF/W	IDT	Low Skew, 1-to-10, Differential-to-2.5V, 3.3V LVPECL/ECL Fanout Buffer	获取价格