sl15100 SpectraLinear Inc, sl15100 Datasheet - Page 2

• Manufacturer Part Number: sl15100
• Description: Programmable Spread Spectrum Clock Generator Sscg
• Manufacturer: SpectraLinear Inc

Pin Description
Pin Configuration
Rev 2.0, August 10, 2008
Number
Pin
1
2
3
4
5
6
7
8
Pin Name
SSCLK1 or
SSCLK2 or
SSON#/FS
XIN/CLKIN
REFCLK1
REFCLK2
PD#/OE
XOUT
VDD
VSS
Pin Type
Output
Output
Output
Power
Power
Input
Input
Input
Positive power supply.
Crystal or ceramic resonator output pin. Leave this pin unconnected
(floating) if external clock is used at Pin-3.
Crystal, ceramic resonator or external clock input pin.
User Programmable PD# or OE control pin. Power Down (PD#-Active
Low): If PD#=0(Low), the device is powered down and both SSCLK and
REFOUT outputs are weakly pulled low to VSS. Output Enable (OE-
Active High): If OE=1(High), the SSCLK and REFOUT outputs are
enabled.
PD# or OE is weakly pulled high to VDD.
Power supply ground.
This pin can be programmed as SSCLK1 or REFCLK1.
This pin can be programmed as SSCLK2 or REFCLK2.
Programmable SSON# or Frequency Select (FS) Control pin. If SSCG#
function is programmed: Spread-on=0(Low) or Spread-off=1(High). If FS
function is programmed: The clock frequencies can be switched between
two sets of frequencies as programmed.
SSON# or FS is weakly pulled low to VSS.
8-Pin TSSOP
Pin Description
SL15100
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