Datasheet > 843256BG

843256BG

更新时间： 2024-11-04 06:46:23

品牌	Logo	应用领域
艾迪悌 - IDT		光电二极管
页数	文件大小	规格书
16页	2036K
描述
Clock Generator, 625MHz, PDSO24, 4.40 X 7.80 MM, 0.92MM, MO-153, TSSOP-24

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843256BG 数据手册

FEMTOCLOCKS™ CRYSTAL-TO-3.3V LVPECL FREQUENCY

SYNTHESIZER WITH/INTEGRATED FANOUT BUFFER

ICS843256

GENERAL DESCRIPTION

FEATURES

The ICS843256 is a Crystal-to-3.3V LVPECL Clock

• Six 3.3V differential LVPECL output pairs

ICS

HiPerClockS™

Synthesizer/Fanout Buffer designed for Fibre

Channel and Gigabit Ethernet applications and is

a member of the HiperClockS™ family of High

Performance Clock Solutions from IDT. The output

• Output frequency range: 62.5MHz to 625MHz

• Crystal input frequency range: 15.625MHz to 25.5MHz

• RMS phase jitter at 156.25MHz, using a 25MHz crystal

(1.875MHz to 20MHz): 0.41ps (typical) @ 3.3V

frequency can be set using the frequency select pins and a

25MHz crystal for Ethernet frequencies, or a 19.44MHz crystal

for SONET. The low phase noise characteristics of the

ICS843256 make it an ideal clock for these demanding

applications.

• Operating supply modes:

Core/Output

3.3V/3.3V

3.3V/2.5V

• 0°C to 70°C ambient operating temperature

• Available in both standard (RoHS 5) and lead-free (RoHS 6)

packages

SELECT FUNCTION TABLE

Inputs

Function

FB_SEL N_SEL1 N_SEL0 M Divide N Divide

M/N

12.5

6.25

PIN ASSIGNMENT

BLOCK DIAGRAM

nQ0

VCCO

Pullup

PLL_BYPASS

nQ3

nQ4

nQ5

N_SEL1

V^EE

nQ2

nQ1

nQ0

nQ1

XTAL_IN

Output

Divider

PLL

OSC

XTAL_OUT

PLL_BYPASS

V^CCA

VEE

nQ2

N_SEL0

XTAL_OUT

XTAL_IN

VCC

FB_SEL

Feedback

Divider

nQ3

24-Lead TSSOP, E-Pad

4.40mm x 7.8mm x 0.92mm

body package

Pulldown

FB_SEL

Pullup

G Package

Top View

N_SEL1

nQ4

Pullup

N_SEL0

nQ5

IDT^™/ ICS^™3.3V LVPECL FREQUENCY SYNTHESIZER

ICS843256BG REV. A MAY 23, 2007

12 3 4 5 6 7...16

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与843256BG相关器件

型号	品牌	获取价格	描述	数据表
843256BGIT	IDT	获取价格	Clock Generator, 625MHz, PDSO24, 4.40 X 7.80 MM, 0.92 MM HEIGHT, MO-153, TSSOP-24
843256BGT	IDT	获取价格	Clock Generator, 625MHz, PDSO24, 4.40 X 7.80 MM, 0.92MM, MO-153, TSSOP-24
843256CK-24LF	IDT	获取价格	Clock Generator, 390.625MHz, 5 X 5 MM, 0.75 MM HEIGHT, ROHS COMPLIANT, MO-220VHHD-2, VFQFN
843256CK-24LFT	IDT	获取价格	Clock Generator, 390.625MHz, 5 X 5 MM, 0.75 MM HEIGHT, ROHS COMPLIANT, MO-220VHHD-2, VFQFN
843256IBGILF	IDT	获取价格	PLL/Frequency Synthesis Circuit, PDSO24
84325EM	IDT	获取价格	Clock Generator, 250MHz, PDSO24, 7.50 X 15.33 MM, 2.30 MM HEIGHT, MS-013, MO-119, SOIC-24
84325EMLN	IDT	获取价格	SOIC-24, Tube
84325EMLNT	IDT	获取价格	Clock Generator, 250MHz, PDSO24, 7.50 X 15.33 MM, 2.30 MM HEIGHT, LEAD FREE, MS-013, MO-11
84325EMT	IDT	获取价格	Clock Generator, 250MHz, PDSO24, 7.50 X 15.33 MM, 2.30 MM HEIGHT, MS-013, MO-119, SOIC-24
843264-1	TE	获取价格	INSERT, ANVIL