SI52112-B4-GM2R datasheet, PDF

Datasheet> All Categories > semiconductor> Analog mixed-signal IC> SI52112-B4-GM2R

SI52112-B4-GM2R: DescriptionClock Generators & Support Products Tiny Clock PCIe 2 output PCI Express; Categorysemiconductor Analog mixed-signal IC; File Size1MB，20 Pages; ManufacturerSilicon Laboratories; Environmental Compliance

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SI52112-B4-GM2R Overview

Clock Generators & Support Products Tiny Clock PCIe 2 output PCI Express

SI52112-B4-GM2R Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Silicon Laboratories
Product Category	Clock Generators & Support Products
RoHS	Details
Type	Clock Generators
Maximum Input Frequency	25 MHz
Max Output Freq	100 MHz
Number of Outputs	2 Output
Duty Cycle - Max	55 %
Operating Supply Voltage	3.3 V
Operating Supply Current	17 mA
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Mounting Style	SMD/SMT
Package / Case	TDFN-10
Packaging	Cut Tape
Packaging	MouseReel
Packaging	Reel
Output Type	Differential
Jitter	250 ps
Factory Pack Quantity	3000
Unit Weight	0.001764 oz

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S i 5 2 11 2 - B 3 / B 4

PCI-E

XPRESS

Features



DUAL

UTPUT

LOCK

ENERATOR

PCI-Express Gen 1 and Gen 2



compliant

Low power HCSL differential



output buffers



Supports Serial-ATA (SATA) at

100 MHz



No termination resistors required

25 MHz Crystal Input or Clock



input

Triangular spread spectrum



profile for maximum EMI

reduction (Si52112-B4)

Extended Temperature:

–40 to 85 °C

3.3 V Power supply

Small package 10-pin TDFN

(3x3 mm)

Si52112-B3 does not support

spread spectrum outputs

Si52112-B4 supports 0.5% down

spread outputs

For PCIe Gen3 applications, see

Si52112-B5/B6

Ordering Information:

See page 13

Applications

Network Attached Storage



Multi-function Printer



Pin Assignments

Wireless Access Point



Routers



VDD

XOUT

VDD

DIFF2

DIFF1

Description

XIN/CLKIN

Si52112-B3/B4 is a high-performance, PCIe clock generator that can

source two PCIe clocks from a 25 MHz crystal or clock input. The clock

outputs are compliant to PCIe Gen 1 and Gen 2 specifications. The ultra-

small footprint (3x3 mm) and industry leading low power consumption

make Si52112-B3/B4 the ideal clock solution for consumer and

embedded applications.

VSS

Patents pending

VDD

DIFF1

XIN/CLKIN

XOUT

PLL

Divider

DIFF2

VSS

Rev 1.2

Si52112-B3/B4

Si52112-B3/B4

ABLE

Section

ONTENTS

Page

1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

2. Crystal Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.1. Crystal Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.2. Calculating Load Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

3. Test and Measurement Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

4. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.1. 10-Pin TDFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2. 8-Pin TSSOP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6. Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

6.1. TDFN Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6.2. TSSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

7. Recommended Design Guideline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Rev 1.2

SI52112-B4-GM2R Related Products

	SI52112-B4-GM2R	Si52112-B3-GT	Si52112-B3-GTR	SI52112-B4-GTR	SI52112-B3-GM2	SI52112-B3-GM2R	SI52112-B4-GM2
Description	Clock Generators & Support Products Tiny Clock PCIe 2 output PCI Express	Clock Generators & Support Products Tiny Clock PCIe 1 output PCI Express	Clock Generators & Support Products Tiny Clock PCIe 1 output PCI Express	Clock Generators & Support Products Tiny Clock PCIe 2 output PCI Express	Clock Generators & Support Products Tiny Clock PCIe-2-OP PCI Xpress Gen2 Gen	Clock Generators & Support Products Tiny Clock PCIe 1 output PCI Express	Clock Generators & Support Products Tiny Clock PCIe-2-OP PCI Xpress Gen2 Gen
Product Attribute	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value
Manufacturer	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories
Product Category	Clock Generators & Support Products	Clock Generators & Support Products	Clock Generators & Support Products	Clock Generators & Support Products	Clock Generators & Support Products	Clock Generators & Support Products	Clock Generators & Support Products
RoHS	Details	Details	Details	Details	Details	Details	Details
Type	Clock Generators	Clock Generators	Clock Generators	Clock Generators	Clock Generators	Clock Generators	Clock Generators
Maximum Input Frequency	25 MHz	25 MHz	25 MHz	25 MHz	25 MHz	25 MHz	25 MHz
Max Output Freq	100 MHz	100 MHz	100 MHz	100 MHz	100 MHz	100 MHz	100 MHz
Number of Outputs	2 Output	2 Output	2 Output	2 Output	1 Output	2 Output	1 Output
Duty Cycle - Max	55 %	55 %	55 %	55 %	55 %	55 %	55 %
Operating Supply Voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
Operating Supply Current	17 mA	17 mA	17 mA	17 mA	17 mA	17 mA	17 mA
Minimum Operating Temperature	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C
Maximum Operating Temperature	+ 85 C	+ 85 C	+ 85 C	+ 85 C	+ 85 C	+ 85 C	+ 85 C
Mounting Style	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT
Package / Case	TDFN-10	TSSOP-8	TSSOP-8	TSSOP-8	TDFN-10	TDFN-10	TDFN-10
Output Type	Differential	Differential	Differential	Differential	Differential	Differential	Differential
Jitter	250 ps	250 ps	250 ps	250 ps	250 ps	250 ps	250 ps
Factory Pack Quantity	3000	2500	100	2500	100	3000	100
Unit Weight	0.001764 oz	0.005573 oz	0.005573 oz	0.005573 oz	0.001764 oz	0.001764 oz	0.001764 oz
Packaging	Reel	Reel	Tube	Reel	Tray	Reel	Tray

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