SL38000ZC Silicon Laboratories Inc, SL38000ZC Datasheet

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SL38000ZC

Manufacturer Part Number
SL38000ZC
Description
Clock Generators & Support Products 1-200MHz 4PLL 9Out CG/SSCG 3.3-2.5V
Manufacturer
Silicon Laboratories Inc
Datasheet

Specifications of SL38000ZC

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Key Features
Applications
Block Diagram
Rev 1.1, August 7, 2008
2200 Laurelwood Road, Santa Clara, CA 95054 Tel: (408) 855-0555 Fax: (408) 855-0550 www.SpectraLinear.com
CLKOUT-8, SDATA or
CLKOUT-9, SCLK or
XIN/CLKIN
• 4 Programmable PLLs with up to 9 Clock Outputs
• Wide 2.5V to 3.3V +/-10% power supply range
• CLKOUTs support 3.3V to 2.5V or 1.8V +/-10%
• Low power dissipation and low jitter
• Programmable VCXO and SSCG options
• EEPROM or I2C Programmability
• Programmable Center or Down Spread Modulation
• 8 to 48 MHz external crystal range
• 8 to 166 MHz external clock input range
• Programmable 1 to 200 MHz clock output range
• Integrated internal voltage regulator
• Programmable PD#/OE/SSON#/FS functions
• Programmable CL at XIN and XOUT pins
• Programmable output rise and fall times
• 28-pin TSSOP package with commercial and
• Printers, MFPs, Digital Copiers
• DTV, HDTV, DVD-R/W and STB
• General Purpose Frequency Synthesising
XOUT
VDDA
VSSA
VDDX
VSSX
MF-11
and 2 REFCLKs
from 0.25 to 5.0%
industrial temperature ranges
MF-10
VIN
(Optional)
Regulator-1
Regulator-2
Voltage
Voltage
OSCILLATOR
(XO or VXCO)
XTAL
I2C Interface
Input Logic
Programmable 4-PLL CG with VCXO and SSCG
and Core
To PLLs
To XO
Configuration
SS-PLL-3
SS-PLL-4
SS Logic
MEMORY
Control
PLL-1
PLL-2
and Control
Configuration
Input Mux
Description
The SL38000 a fully integrated 4 PLL programmable low
power Clock Generator with SSCG and VCXO functions
used for reducing Electromagnetic Interference (EMI) and
general purpose frequency synthesizing. The product is
designed using SpectraLinear proprietary programmable
EProClock™ phase-locked loop (PLL) and Spread
Spectrum Clock (SSC) technology to synthesize and
modulate the input clock. The modulated clock can
significantly reduce the measured EMI levels, and leading
to the compliance with regulatory agency requirements.
Up to 9 output clock frequencies and 2 REFOUT clocks,
Spread %, output rise and fall times for each clock outputs,
crystal load, modulation frequency and PD#/OE/SSON#/FS
functions can be programmed to meet the needs of wide
range of applications. The SL38000 operates from 2.5V to
3.3V power supply voltage range. The output clocks
(CLKOUTs) can support 3.3 to 2.5V or 1.8V +/-10%. The
product is offered in 28-pin TSSOP package with
commercial and industrial grades.
Benefits
Mux and Div
Logic
Control
• Peak EMI reduction of 8 to 16 dB
• Fast time-to-market
• Cost Reduction
• Reduction of PCB layers
• Eleminates the need for XOs and VCXOs
Logic
5
Drivers Drive
Function I/O
Drivers with
Strength
Control
Output
Output
Multi
VDDO
and
VSSO
MF-8 or MF13
SL38000
CLKOUT-1 or MF-1
CLKOUT-2 or MF-2
CLKOUT-3 or MF-3
CLKOUT-4 or MF-4
CLKOUT-5 or MF-5
CLKOUT-6 or MF-6
CLKOUT-7 or MF-7
REFOUT-1 or MF-9
REFOUT-2 or MF-13
Page 1 of 12

Related parts for SL38000ZC

SL38000ZC Summary of contents

Page 1

Programmable 4-PLL CG with VCXO and SSCG Key Features • 4 Programmable PLLs with Clock Outputs and 2 REFCLKs • Wide 2.5V to 3.3V +/-10% power supply range • CLKOUTs support 3.3V to 2.5V or 1.8V +/-10% ...

Page 2

Pin Configuration Rev 1.1, August 7, 2008 28-Pin TSSOP Package SL38000 Page ...

Page 3

Pin Description Pin Pin Name Pin Number Type 1 XIN/CLKIN Input 2 MF-8 Input 3 MF-9 I/O 4 VIN Input 11 CLKOUT-1 I/O or MF-1 12 CLKOUT-8, I/O SDATA or MF-10 13 CLKOUT-2 I/O or MF-2 14 CLKOUT-9, I/O SCLK ...

Page 4

VDDO-3 Power 23 VDDO-4 Power 9 VSSO-1 Power 10 VSSO-2 Power 20 VSSO-3 Power 21 VSSO-4 Power 28 XOUT Output Absolute Maximum Ratings Description Supply voltage, VDD Supply voltage, VDDO All Inputs and Outputs Ambient Operating Temperature Ambient Operating ...

Page 5

Input High Current IIH Input Low Current IIL Pull-up or Down RPU/D Resistors Operating Supply IDD1 Current Operating Supply IDD2 Current Standby Current ISBC Output Leakage Current IOL Programmable Cin Input Capacitance at Cout Pins 1 and 28 Input Capacitance ...

Page 6

PLL Lock Time PD# Power-up Time tPU2 (Crystal or Clock) tOE Output Enable Time tOD Output Disable Time Spread Percent Range SPR-1 Spread Percent Range SPR-2 Modulation Frequency FMOD DC Electrical Characteristics (C-Grade) Unless otherwise stated VDDA=VDDX=2.5V to 3.3V+/-10%, ...

Page 7

Output Leakage Current IOL Programmable Cin Input Capacitance at Cout Pins 1 and 28 Input Capacitance CIN2 Load Capacitance CL AC Electrical Characteristics (C-Grade) Unless otherwise stated VDDA=VDDX= 2.5V to 3.3V+/-10%, CL=15pF and Ambient Temperature range -40 to +85 Deg ...

Page 8

Programmable Output Clock (CLKOUT) Rise and Fall Times The output clock rise and fall times (tr/tf) of each clock output can be programmed independently to match drive level to load impedance. Programming VDDO=3.3V Code CL=15pF 000 001 010 011 100 ...

Page 9

SDA/SCLK t F fall time STOP set-up t SU;STO time Bus free time t BUF SDATA LOW R SCLK t t HD;STA HD;DAT S External Components & Design Considerations Typical Application Schematic TBD Comments and Recommendations ...

Page 10

Where CL is crystal load capacitor as given by the crystal datasheet and Cp(pF) is the compensation factor for the total parasitic capacitance at XIN or XOUT pin including PCB related parasitic capacitance example crystal with ...

Page 11

Package Outline and Package Dimensions 28-Pin TSSOP Package Thermal Characteristics Parameter Symbol θ Thermal Resistance θ Junction to Ambient θ θ Thermal Resistance Junction to Case Rev 1.1, August 7, 2008 Condition Still air JA 1m/s air flow JA 3m/s ...

Page 12

... Ordering Information [2] Ordering Number SL38000ZC-XXX SL38000ZC-XXX SL38000ZC-XXXT SL38000ZC-XXX SL38000ZI-XXX SL380004ZI-XXX SL38000ZI-XXXT SL38000ZI-XXX Notes: 1. All SLI products are RoHS compliant. 2. “XXX” is “Dash” number and will be assigned by SLI for final programmed samples and production units based on customer programming requirements. While SLI has reviewed all information herein for accuracy and reliability, Spectra Linear Inc. assumes no responsibility for the use of any circuitry or for the infringement of any patents or other rights of third parties which would result from each use ...

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