Datasheet > 840S07I

840S07I

更新时间： 2024-09-14 01:14:19

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
20页	323K
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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840S07I 数据手册

Crystal-to-LVCMOS/LVTTL Frequency

Synthesizer

840S07I

Data Sheet

General Description

Features

The 840S07I is a seven output LVCMOS/LVTTL Frequency

Synthesizer accepting crystal or single-ended reference clock

inputs. The 840S07I uses a 25MHz parallel resonant crystal to

generate 33.33MHz – 166.67MHz clock signals, replacing solutions

requiring multiple oscillator and fanout buffer solutions. 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 3 output banks, output QAA with one 33.33MHz – 166.67MHz

LVCMOS/LVTTL output, output QAB with one 125MHz

LVCMOS/LVTTL output and Bank B with three 33.33MHz –

166.67MHz LVCMOS/LVTTL outputs.

• Five single-ended LVCMOS/LVTTL outputs

• Two REF_OUT LVCMOS/LVTTL clock outputs

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

resonant crystal or LVCMOS/LVTTL single-ended reference input

• Supports the following output frequencies:

Output QAA/Bank B: 33.33MHz, 50MHz, 66.67MHz, 83.33MHz,

100MHz, 125MHz, 133.33MHz and 166.67MHz

Output QAB: 125MHz

• VCO frequency: 2GHz

• Slew rate control

• Voltage supply modes:

Output QAA and Bank B have their own dedicated frequency select

pins and can be independently set for the frequencies mentioned

above. Designed for networking and industrial applications, the

840S07I 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

• Available in lead-free (RoHS 6) package

communication processors, DSPs, switches and bridges.

Pin Assignment

[2, 1] Pulldown, [0] Pullup

F_SELAA[2:0]

Block Diagram

QAA

÷NAA

32 31 30 29 28 27 26 25

VDDA

GND

XTAL_IN

125MHz

QAB

OSC

25MHz

NAB

÷16

VDD

QAA

PLL

VCO

2GHz

XTAL_OUT

V^DDO_AA

GND

XTAL_IN

GND

Pulldown

REF_IN

QB0

QB1

QB2

25MHz

REF_SEL

REF_IN

QB1

REF_SEL

QB2

M = ÷80

÷NB

F_SELB2

VDDO_B

10 11 12 13 14 15 16

Pulldown

SLEW[1:0]

MR/nOE

REF_OUT0

REF_OUT1

840S07I

Pulldown

Pullup

F_SELB[2:0]

nOE_REF

32-Lead TQFP, E-Pad

7mm x 7mm x1mm package body

Y Package

Top View

Revision A April 14, 2016

12 3 4 5 6 7...20

中文翻译

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