841602AGILFT Datasheet 841602AGILF, 841602AGILFT | P13-P15

REVISION A 4/15/15

841602 DATA SHEET

13 FEMTOCLOCKS™ CRYSTAL-TO-HCSL

CLOCK GENERATOR

3. Calculations and Equations.

The purpose of this section is to calculate power dissipation on the IC per HCSL output pair.

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

HCSL is a current steering output which sources a maximum of 17mA of current per output. To calculate worst case on-chip power

dissipation, use the following equations which assume a 50Ω load to ground.

The highest power dissipation occurs when V

is HIGH.

Power = (V

DD_HIGH

– V

OUT

) * I

OUT,

since V

OUT

= I

OUT

* R

= (V

DD_HIGH

– I

OUT

) * I

OUT

= (3.465V – 17mA * 50Ω) * 17mA

Total Power Dissipation per output pair = 44.5mW

FIGURE 6. HCSL DRIVER CIRCUIT AND TERMINATION

OUT

50

OUT

= 17mA

REF

475



± 1%

FEMTOCLOCKS™ CRYSTAL-TO-HCSL

CLOCK GENERATOR

841602 DATA SHEET

14 REVISION A 4/15/15

RELIABILITY INFORMATION

TRANSISTOR COUNT

The transistor count for 841602 is: 2785

TABLE 8. θ

VS. AIR FLOW TABLE FOR 28 LEAD TSSOP

by Velocity (Meters per Second)

0 1 2.5

Multi-Layer PCB, JEDEC Standard Test Boards 64.5°C/W 60.4°C/W 58.5°C/W

PACKAGE OUTLINE - G SUFFIX FOR 28 LEAD TSSOP TABLE 9. PACKAGE DIMENSIONS

Reference Document: JEDEC Publication 95, MO-153

SYMBOL

Millimeters

Minimum Maximum

N28

A -- 1.20

A1 0.05 0.15

A2 0.80 1.05

b 0.19 0.30

c 0.09 0.20

D 9.60 9.80

E 8.10 BASIC

E1 6.00 6.20

e 0.65 BASIC

L 0.45 0.75

0° 8°

aaa -- 0.10

PACKAGE OUTLINE & DIMENSIONS

REVISION A 4/15/15

841602 DATA SHEET

15 FEMTOCLOCKS™ CRYSTAL-TO-HCSL

CLOCK GENERATOR

TABLE 10. ORDERING INFORMATION

Part/Order Number Marking Package Shipping Packaging Temperature

841602AGILF ICS841602AGILF 28 Lead “Lead-Free” TSSOP tube -40°C to 85°C

841602AGILFT ICS841602AGILF 28 Lead “Lead-Free” TSSOP tape & reel -40°C to 85°C

NOTE: Parts that are ordered with an “LF” sufﬁ x to the part number are the Pb-Free conﬁ guration and are RoHS compliant.

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P17

841602AGILFT

Mfr. #:

Buy 841602AGILFT

Manufacturer:

IDT

Description:

Clock Generators & Support Products 2 HCSL OUT SYNTHESIZER

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

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841602AGILFT

841602AGILFT

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