843241BGLFT

843241BGLFT Datasheet

ICS843241

Part	Datasheet
843241BGLFT	843241BGLFT (pdf)

Related Parts	Information
843241BGLF	843241BGLF

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FEMTOCLOCKS SAS/SATA CLOCK GENERATOR ICS843241 The ICS843241 is a low jitter, high performance clock generator and a member of the FemtoClocks family HiPerClockS of silicon timing products. The ICS843241 is designed for use in the SAS-2 interconnect and the three • Designed for use in SAS-2 systems • Up, down and center spread spectrum clocking • One differential 3.3V or 2.5V LVPECL output pair transport protocols that use the SAS-2 interconnect Serial SCSI Protocol SSP , Serial ATA Tunneled Protocol STP , and Serial Management Protocol SMP . The ICS843241 has excellent <1ps RMS phase jitter, over the SAS defined integration range. The ICS843241 uses an external, 25MHz, • Selectable output frequencies 75MHz, 100MHz, 150MHz, 300MHz • RMS phase jitter 75MHz, 900kHz 7.5MHz 0.70ps typical parallel resonant crystal to generate three selectable output • 3.3V or 2.5V operating supply frequencies 75MHz, 100MHz, 150MHz, and 300MHz. This silicon based approach provides excellent frequency stability and reliability. The ICS843241 features up, down, and center spread • 0°C to 70°C ambient operating temperature • Available in lead-free RoHS 6 packages spectrum SSC clocking techniques. The up, down and center SSC will be required in the SAS-2 applications that have three clock trees in the HBA and expander ASICs see Applications Information section, Figure APPLICATIONS: ADDITIONAL ORDERING INFORMATION TABLE Package Output Frequency • SAS/ SATA Host Bus Adapters ICS843241BG 16 TSSOP 75MHz, 100MHz, 150MHz, 300MHz • SATA Port Multipliers • SAS I/O Controllers • TapeDrive and HDD Array Controllers • SAS Edge and Fanout Expanders • HDDs and Tape Drives ICS843241BM-75 ICS843241BM-100 ICS843241BM-150 ICS843241BM-300 8 SOIC 8 SOIC 8 SOIC 8 SOIC 75MHz 100MHz 150MHz 300MHz • Disk Storage Enterprise PIN ASSIGNMENT BLOCK DIAGRAMS 25MHz XTAL_IN XTAL_OUT SSC_SEL[1:0] Pulldown OSC 8-Lead SOIC FemtoClock PLL 75MHz, 100MHz, 150MHz or 300MHz See Table 10 for Ordering Information XTAL_OUT 1 XTAL_IN 2 SSC_SEL0 3 SSC_SEL1 4 8 VEE 7 nQ 6Q 5 VCC ICS843241-XXX 8-Lead SOIC, 150 mil 3.90mm x 4.90mm x 1.37mm package body M Package Top View PIN ASSIGNMENT F_SEL[1:0] Pullup:Pulldown nPLL_SEL Pulldown 25MHz XTAL_IN XTAL_OUT FemtoClock PLL SSC_SEL[1:0] Pulldown 16-Lead TSSOP F_SEL[1:0] 0 75MHz 0 1 100MHz 1 0 150MHz 1 300MHz VEE 1 XTAL_OUT 2 XTAL_IN 3 SSC_SEL0 4 nc 5 nc 6 nc 7 SSC_SEL1 8 16 F_SEL1 15 VEE 14 nPLL_SEL 13 nQ 12 Q 11 VCC 10 F_SEL0 9 VCC ICS843241 16-Lead TSSOP 4.4mm x 5.0mm x 0.92mm package body G Package Top View IDT / ICS SAS/SATA CLOCK GENERATOR ICS843241 FEMTOCLOCKS SAS/SATA CLOCK GENERATOR TABLE PIN DESCRIPTIONS Name XTAL_OUT, XTAL_IN SSC_SEL0, SSC_SEL1 F_SEL0 F_SEL1 nPLL_SEL nQ, Q VEE VCC nc Type Input Pulldown Input Pulldown Input Pullup Input Pulldown Output Power Unused Description Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output. SSC select pins. See Table 3A. LVCMOS/LVTTL interface levels. Output frequency select pin. See Table 3B. LVCMOS/LVTTL interface levels. Output frequency select pin. See Table 3B. LVCMOS/LVTTL interface levels. Bypasses the PLL. LVCMOS/LVTTL interface levels. Differential clock outputs. LVPECL interface levels. Negative supply pin. Power supply pin. No connect. TABLE PIN CHARACTERISTICS Symbol CIN RPULLDOWN RPULLUP Parameter Input Capacitance Input Pulldown Resistor Input Pullup Resistor TABLE ORDERING INFORMATION Part/Order Number Marking Package Shipping Packaging Temperature ICS843241BGLF 843241BL 16 Lead "Lead-Free" TSSOP tube 0°C to 70°C ICS843241BGLFT 843241BL 16 Lead "Lead-Free" TSSOP 2500 tape & reel 0°C to 70°C ICS843241BM-75LF 3241B75L 8 Lead "Lead-Free" SOIC tube 0°C to 70°C ICS843241BM-75LFT 3241B75L 8 Lead "Lead-Free" SOIC 2500 tape & reel 0°C to 70°C ICS843241BM-100LF 241B100L 8 Lead "Lead-Free" SOIC tube 0°C to 70°C ICS843241BM-100LFT 241B100L 8 Lead "Lead-Free" SOIC 2500 tape & reel 0°C to 70°C ICS843241BM-150LF 241B150L 8 Lead "Lead-Free" SOIC tube 0°C to 70°C ICS843241BM-150LFT 241B150L

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FEMTOCLOCKS SAS/SATA CLOCK GENERATOR

ICS843241

The ICS843241 is a low jitter, high performance clock
generator and a member of the FemtoClocks family

HiPerClockS of silicon timing products. The ICS843241 is designed
for use in the SAS-2 interconnect and the three
• Designed for use in SAS-2 systems
• Up, down and center spread spectrum clocking
• One differential 3.3V or 2.5V LVPECL output pair
transport protocols that use the SAS-2 interconnect Serial SCSI Protocol SSP , Serial ATA Tunneled Protocol STP , and Serial Management Protocol SMP . The ICS843241 has excellent <1ps RMS phase jitter, over the SAS defined integration range. The ICS843241 uses an external, 25MHz,
• Selectable output frequencies 75MHz, 100MHz, 150MHz, 300MHz
• RMS phase jitter 75MHz, 900kHz 7.5MHz 0.70ps typical
parallel resonant crystal to generate three selectable output
• 3.3V or 2.5V operating supply
frequencies 75MHz, 100MHz, 150MHz, and 300MHz. This silicon based approach provides excellent frequency stability and reliability. The ICS843241 features up, down, and center spread
• 0°C to 70°C ambient operating temperature
• Available in lead-free RoHS 6 packages
spectrum SSC clocking techniques. The up, down and center

SSC will be required in the SAS-2 applications that have three
clock trees in the HBA and expander ASICs see Applications

Information section, Figure

APPLICATIONS:
ADDITIONAL ORDERING INFORMATION TABLE

Package

Output Frequency
• SAS/ SATA Host Bus Adapters

ICS843241BG
16 TSSOP 75MHz, 100MHz, 150MHz, 300MHz
• SATA Port Multipliers
• SAS I/O Controllers
• TapeDrive and HDD Array Controllers
• SAS Edge and Fanout Expanders
• HDDs and Tape Drives

ICS843241BM-75 ICS843241BM-100 ICS843241BM-150 ICS843241BM-300
8 SOIC 8 SOIC 8 SOIC 8 SOIC
75MHz 100MHz 150MHz 300MHz
• Disk Storage Enterprise

PIN ASSIGNMENT

BLOCK DIAGRAMS
25MHz

XTAL_IN XTAL_OUT SSC_SEL[1:0] Pulldown

OSC 8-Lead SOIC

FemtoClock PLL
75MHz, 100MHz, 150MHz or 300MHz
See Table 10 for Ordering Information

XTAL_OUT 1 XTAL_IN 2

SSC_SEL0 3 SSC_SEL1 4
8 VEE 7 nQ 6Q 5 VCC

ICS843241-XXX
8-Lead SOIC, 150 mil 3.90mm x 4.90mm x 1.37mm package body

M Package Top View

PIN ASSIGNMENT

F_SEL[1:0] Pullup:Pulldown
nPLL_SEL Pulldown
25MHz

XTAL_IN XTAL_OUT

FemtoClock PLL

SSC_SEL[1:0] Pulldown
16-Lead TSSOP

F_SEL[1:0]
0 75MHz
0 1 100MHz
1 0 150MHz
1 300MHz

VEE 1 XTAL_OUT 2

XTAL_IN 3 SSC_SEL0 4
nc 5 nc 6 nc 7 SSC_SEL1 8
16 F_SEL1 15 VEE 14 nPLL_SEL 13 nQ 12 Q 11 VCC 10 F_SEL0
9 VCC

ICS843241
16-Lead TSSOP
4.4mm x 5.0mm x 0.92mm package body

G Package

Top View

IDT / ICS SAS/SATA CLOCK GENERATOR

ICS843241 FEMTOCLOCKS SAS/SATA CLOCK GENERATOR

TABLE PIN DESCRIPTIONS

Name XTAL_OUT, XTAL_IN SSC_SEL0, SSC_SEL1

F_SEL0 F_SEL1 nPLL_SEL nQ, Q

VEE VCC nc

Type Input Pulldown Input Pulldown Input Pullup Input Pulldown Output Power Unused

Description Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output. SSC select pins. See Table 3A. LVCMOS/LVTTL interface levels. Output frequency select pin. See Table 3B. LVCMOS/LVTTL interface levels. Output frequency select pin. See Table 3B. LVCMOS/LVTTL interface levels. Bypasses the PLL. LVCMOS/LVTTL interface levels. Differential clock outputs. LVPECL interface levels. Negative supply pin. Power supply pin. No connect.

TABLE PIN CHARACTERISTICS

Symbol CIN RPULLDOWN RPULLUP

Parameter Input Capacitance Input Pulldown Resistor Input Pullup Resistor
TABLE ORDERING INFORMATION

Part/Order Number

Marking

Package

Shipping Packaging Temperature

ICS843241BGLF
843241BL
16 Lead "Lead-Free" TSSOP
tube
0°C to 70°C

ICS843241BGLFT
843241BL
16 Lead "Lead-Free" TSSOP 2500 tape & reel
0°C to 70°C

ICS843241BM-75LF
3241B75L
8 Lead "Lead-Free" SOIC
tube
0°C to 70°C

ICS843241BM-75LFT
3241B75L
8 Lead "Lead-Free" SOIC
2500 tape & reel
0°C to 70°C

ICS843241BM-100LF
241B100L
8 Lead "Lead-Free" SOIC
tube
0°C to 70°C

ICS843241BM-100LFT
241B100L
8 Lead "Lead-Free" SOIC
2500 tape & reel
0°C to 70°C

ICS843241BM-150LF
241B150L
8 Lead "Lead-Free" SOIC
tube
0°C to 70°C

ICS843241BM-150LFT
241B150L

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Datasheet ID: 843241BGLFT 636710