Datasheet > 840S05I

840S05I

更新时间： 2024-11-03 01:17:47

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
21页	357K
描述
Crystal-to-LVCMOS/LVTTL Frequency Synthesizer

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中文翻译

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数据手册

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840S05I 数据手册

Crystal-to-LVCMOS/LVTTL

Frequency Synthesizer

840S05I

Data Sheet

General Description

Features

The 840S05I is a five output LVCMOS/LVTTL Frequency

Synthesizer accepting crystal or single-ended reference clock

inputs. The 840S05I uses a 25MHz parallel resonant crystal to

generate 33.33MHz – 166.67MHz clock signals, replacing solutions

requiring multiple oscillator and fan-out buffer solution. The device

supports output slew rate control with two slew select pins

(SLEW[1:0]). The VCO operates at a frequency of 2GHz. The device

has 2 output banks, Bank A with two 33.33MHz – 166.67MHz

LVCMOS/LVTTL outputs and Bank B with two 33.33MHz –

166.67MHz LVCMOS/LVTTL outputs.

• Four single-ended LVCMOS/LVTTL clock outputs

• One REF_OUT LVCMOS/LVTTL clock output

• Selectable crystal oscillator interface, 25MHz, 18pF parallel

resonant crystal or LVCMOS/LVTTL single-ended reference input

• Supports the following output frequencies on either bank:

33.33MHz, 50MHz, 66.67MHz, 83.33MHz, 100MHz, 125MHz,

133.33MHz, and 166.67MHz

• VCO: 2GHz

• Slew rate control

• Output supply modes:

The two banks have their own dedicated frequency select pins and

can be independently set for frequencies in the ranges mentioned

above. Designed for networking and industrial applications, the

840S05I can also drive the high-speed clock inputs of

Core/Output

3.3V/3.3V

3.3V/2.5V

• -40°C to 85°C ambient operating temperature

• Lead-free (RoHS 6) packaging

communication processors, DSPs, switches and bridges.

Block Diagram

Pin Assignment

Pullup

F_SELA[0, 2]

Pulldown

QA0

F_SELA1

24 23 22 21 20 19 18 17

25MHz

÷NA

÷NB

V^DD

F_SELB0

MR/nOE

F_SELB1

GND

XTAL_IN

QA1

OSC

PLL

VCO

2GHz

XTAL_OUT

GND

F_SELA0

F_SELA1

SLEW0

SLEW1

F_SELA2

QB0

QB1

Pulldown

REF_IN

REF_OUT

VDDO_REF

nREF_OE

REF_SEL

M = ÷80

Pulldown

SLEW[1:0]

MR/nOE

REF_OUT

Pulldown

Pullup

F_SELB[2:0]

nREF_OE

840S05I

32-Lead TQFP, E-Pad

7mm x 7mm x 1mm package body

Y Package

Top View

Revision A April 11, 2016

12 3 4 5 6 7...21

中文翻译

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