515BBA74M2500AAG datasheet, PDF

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515BBA74M2500AAG: DescriptionVCXO; DIFF/SE; SINGLE FREQ; 0.1-; CategoryPassive components; File Size597KB，24 Pages; ManufacturerSilicon Laboratories Inc

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515BBA74M2500AAG Overview

VCXO; DIFF/SE; SINGLE FREQ; 0.1-

515BBA74M2500AAG Parametric

Parameter Name	Attribute value
type	VCXO
frequency	74.25MHz
Function	enable/disable
output	LVDS
Voltage - Power	3.3V
frequency stability	±20ppm
Absolute pulling range (APR)	±80ppm
Operating temperature	-40°C ~ 85°C
Current - Power (maximum)	26mA
grade	-
Installation type	surface mount
Package/casing	6-SMD, no leads
size/dimensions	0.276" long x 0.197" wide (7.00mm x 5.00mm)
Height - Installation (maximum)	0.071"（1.80mm）
Current - Power (disabled) (maximum)	22mA

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Si515

O L TAG E

- C

ONTR OLLED

RYSTAL

S C I L L A T O R

(VCXO)

100 k H

Z T O

250 MH

Features



Supports any frequency from



100 kHz to 250 MHz

Low-jitter operation



Short lead times: <2 weeks



AT-cut fundamental mode crystal

ensures high reliability/low aging



High power supply noise rejection



1% control voltage linearity

Available CMOS, LVPECL, LVDS,

and HCSL outputs

Optional integrated 1:2 CMOS

fanout buffer

3.3 and 2.5 V supply options

Industry-standard 5x7, 3.2x5, and

2.5x3.2 mm packages

Pb-free/RoHS-compliant

Selectable Kv (60, 90, 120,

150 ppm/V)

Si5602

, 3.2

2.5

3.2

Ordering Information:

See page 14.

Applications

SONET/SDH/OTN



PON



Low Jitter PLLs



xDSL



Broadcast video



Telecom



Switches/routers



FPGA/ASIC clock generation



Pin Assignments:

See page 12.

Vc 1

GND

6 V

5 NC

4 CLK

Description

The Si515 VCXO utilizes Silicon Laboratories' advanced PLL technology to

provide any frequency from 100 kHz to 250 MHz. Unlike a traditional VCXO where

a different crystal is required for each output frequency, the Si515 uses one fixed

crystal and Silicon Labs’ proprietary synthesizer to generate any frequency across

this range. This IC-based approach allows the crystal resonator to provide

enhanced reliability, improved mechanical robustness, and excellent stability. In

addition, this solution provides superior control voltage linearity and supply noise

rejection, improving PLL stability and simplifying low jitter PLL design in noisy

environments. The Si515 is factory-configurable for a wide variety of user

specifications, including frequency, supply voltage, output format, tuning slope and

stability. Specific configurations are factory-programmed at time of shipment,

eliminating long lead times and non-recurring engineering charges associated with

custom frequency oscillators.

CMOS VCXO

Vc 1

OE 2

GND 3

5 CLK–

4 CLK+

LVPECL/LVDS/HCSL/

Dual CMOS VCXO

Functional Block Diagram

Fixed

Frequency

Oscillator

Power Supply Filtering

Any-Frequency

0.1 to 250 MHz

Clock Synthesis

CLK+

CLK–

ADC

GND

Rev. 1.2 6/18

Si515

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