SI5326C-B-GM Silicon Laboratories Inc, SI5326C-B-GM Datasheet

IC ANY-RATE MULTI/ATTEN 36QFN

SI5326C-B-GM

Manufacturer Part Number
SI5326C-B-GM
Description
IC ANY-RATE MULTI/ATTEN 36QFN
Manufacturer
Silicon Laboratories Inc
Type
Clock Multiplierr
Datasheets

Specifications of SI5326C-B-GM

Number Of Circuits
1
Package / Case
36-QFN
Pll
Yes
Input
Clock
Output
CML, CMOS, LVDS, LVPECL
Ratio - Input:output
2:2
Differential - Input:output
Yes/Yes
Frequency - Max
346MHz
Divider/multiplier
Yes/Yes
Voltage - Supply
1.62 V ~ 3.63 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Frequency-max
346MHz
Maximum Input Frequency
710 MHz
Minimum Input Frequency
0.002 MHz
Output Frequency Range
0.002 MHz to 1400 MHz
Supply Voltage (max)
3.63 V
Supply Voltage (min)
1.71 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Operating Supply Voltage
1.8 V, 2.5 V, 3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
A
Description
The Si5326 is a jitter-attenuating precision clock multiplier for
applications requiring sub 1 ps jitter performance. The Si5326
accepts dual clock inputs ranging from 2 kHz to 710 MHz and
generates two clock outputs ranging from 2 kHz to 945 MHz
and select frequencies to 1.4 GHz. The two outputs are
divided down separately from a common source. The device
provides virtually any frequency translation combination
across this operating range. The Si5326 input clock
frequency and clock multiplication ratio are programmable
through an I
Silicon Laboratories' 3rd-generation DSPLL
which provides any-rate frequency synthesis and jitter
attenuation in a highly integrated PLL solution that eliminates
the need for external VCXO and loop filter components. The
DSPLL loop bandwidth is digitally programmable, providing
jitter performance optimization at the application level.
Operating from a single 1.8, 2.5, or 3.3 V supply, the Si5326
is ideal for providing clock multiplication and jitter attenuation
in high performance timing applications.
Applications
Confidential Rev. 0.2 2/07
Frequency Offset
Loss of Signal/
N Y
SONET/SDH OC-48/OC-192 line cards
GbE/10GbE, 1/2/4/8/10GFC line cards
ITU G.709 and custom FEC line cards
Optical modules
Wireless basestations
Data converter clocking
xDSL
SONET/SDH + PDH clock synthesis
Test and measurement
Loss of Lock
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
- R
CKIN1
CKIN2
2
A T E
C or SPI interface. The Si5326 is based on
P
R E C I S I O N
÷ N31
÷ N32
Signal Detect
Copyright © 2007 by Silicon Laboratories
Device Interrupt
C
Xtal or Refclock
®
I
Rate Select
2
C/SPI Port
L O C K
technology,
M
DSPLL
Control
÷ N2
U L T I P L I E R
Features
®
Generates any frequency from 2 kHz to 945 MHz
and select frequencies to 1.4 GHz from an input
frequency of 2 kHz to 710 MHz
Ultra-low jitter clock outputs w/jitter generation as
low as 0.3 ps rms (50 kHz–80 MHz)
Integrated loop filter with selectable loop bandwidth
(60 Hz to 8.4 kHz)
Meets OC-192 GR-253-CORE jitter specifications
Dual clock inputs w/manual or automatically
controlled hitless switching
Dual clock outputs with selectable signal format
(LVPECL, LVDS, CML, CMOS)
Support for ITU G.709 and custom FEC ratios
(255/238, 255/237, 255/236)
LOL, LOS, FOS alarm outputs
Digitally-controlled output phase adjust
I
On-chip voltage regulator for 1.8, 2.5, or 3.3 V
±10% operation
Small size: 6 x 6 mm 36-lead QFN
Pb-free, ROHS compliant
2
C or SPI programmable
Clock Select
Latency Control
P
R E L I M I N A R Y
÷ NC1
÷ NC2
/ J
I T T E R
Si5326
A
D
T T E N U A T O R
CKOUT1
VDD (1.8, 2.5, or 3.3 V)
GND
A TA
CKOUT2
S
H E E T
Si5326

Related parts for SI5326C-B-GM

SI5326C-B-GM Summary of contents

Page 1

Description The Si5326 is a jitter-attenuating precision clock multiplier for applications requiring sub 1 ps jitter performance. The Si5326 accepts dual clock inputs ...

Page 2

Si5326 Table 1. Performance Specifications (V = 1.8, 2.5, or 3.3 V ±10 – º Parameter Symbol Temperature Range T A Supply Voltage V DD Supply Current I DD Input Clock Frequency CK F ...

Page 3

Table 1. Performance Specifications (Continued 1.8, 2.5, or 3.3 V ±10 – º Parameter Symbol Duty Cycle CKO DC PLL Performance Jitter Generation J GEN Jitter Transfer J PK External Reference Jitter ...

Page 4

Si5326 0 -20 -40 -60 -80 -100 -120 -140 -160 100 1000 4 155.52 MHz in, 622.08 MHz out 10000 100000 1000000 Offset Frequency (Hz) Typical Phase Noise Plot Figure 1. Confidential Rev. 0.2 10000000 100000000 ...

Page 5

Figure 2. Si5326 Typical Application Circuit (I Figure 3. Si5326 Typical Application Circuit (SPI Control Mode) Confidential Rev. 0.2 Si5326 2 C Control Mode) 5 ...

Page 6

Si5326 1. Functional Description The Si5326 is a jitter-attenuating precision clock multiplier for applications requiring sub 1 ps jitter performance. The Si5326 accepts dual clock inputs ranging from 2 kHz to 710 MHz and generates two independent, synchronous clock outputs ...

Page 7

Pin Descriptions: Si5326 INT_C1B Pin numbers are preliminary and subject to change. Pin # Pin Name I/O Signal Level 1 I LVCMOS RST 2, 9, 14, NC — 30 INT_C1B O LVCMOS Note: Internal register names are ...

Page 8

Si5326 Pin # Pin Name I/O Signal Level 4 C2B O LVCMOS 5, 10 GND GND 11 RATE0 I 3-Level 15 RATE1 16 CKIN1 CKIN1– 12 ...

Page 9

Pin # Pin Name I/O Signal Level 19 DEC I LVCMOS 20 INC I LVCMOS 21 CS_CA I/O LVCMOS 22 SCL I LVCMOS Note: Internal register names are indicated by underlined italics, e.g. INT_PIN. See Si5326 Register Map. Description Latency ...

Page 10

Si5326 Pin # Pin Name I/O Signal Level 23 SDA_SDO I/O LVCMOS LVCMOS A2_SS I LVCMOS 27 SDI I LVCMOS 29 CKOUT1– CKOUT1+ 34 CKOUT2– CKOUT2+ 36 CMODE I LVCMOS ...

Page 11

... Ordering Guide Ordering Part Output Clock Frequency Number Si5326A-B-GM 2 kHz–945 MHz 970–1134 MHz 1.213–1.417 GHz Si5326B-B-GM 2 kHz–808 MHz Si5326C-B-GM 2 kHz–346 MHz Package Range 36-Lead QFN 36-Lead QFN 36-Lead QFN Confidential Rev. 0.2 Si5326 Temperature Range – °C – ...

Page 12

Si5326 4. Package Outline: 36-Pin QFN Figure 4 illustrates the package details for the Si5326. Table 3 lists the values for the dimensions shown in the illustration. Figure 4. 36-Pin Quad Flat No-lead (QFN) Symbol Millimeters Min Nom A 0.80 ...

Page 13

Recommended PCB Layout Figure 5. PCB Land Pattern Diagram Confidential Rev. 0.2 Si5326 13 ...

Page 14

Si5326 Table 4. PCB Land Pattern Dimensions Dimension Notes (General): 1. All dimensions shown are in millimeters (mm) unless otherwise noted. 2. Dimensioning and Tolerancing is per the ANSI ...

Page 15

OCUMENT HANGE IST Revision 0.1 to Revision 0.2 Updated LVTTL to LVCMOS is Table 2, “Absolute Maximum Ratings,” on page 3. Added Figure 1, “Typical Phase Noise Plot,” on page 4. Updated Figure 2, “Si5326 Typical Application ...

Page 16

... Should Buyer purchase or use Silicon Laboratories products for any such unintended or unauthorized ap- plication, Buyer shall indemnify and hold Silicon Laboratories harmless against all claims and damages. Silicon Laboratories, Silicon Labs, and DSPLL are trademarks of Silicon Laboratories Inc. Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders. ...

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