PDF ICS9LPRS436C Data sheet ( Hoja de datos )

Número de pieza	ICS9LPRS436C
Descripción	Low Power Clock
Fabricantes	Integrated Device Technology
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No Preview Available ! Low Power Clock for Intel Atom®-Based Systems DATASHEET ICS9LPRS436C Recommended Application: NM10 Express Chipset + N450/D410/D510 Atom® CPUs Output Features: • 2 - 0.8V push-pull differential CPU pairs • 2 - 0.8V push-pull differential PCIEX pairs • 1 - 0.8V push-pull differential SATA75 pair • 1 - 0.8V push-pull differential DOT96 pair • 1 - 0.8V push-pull differential CPU/PCIEX selectable pair • 1 - PCI (33MHz) • 1 - PCICLK_F, (33MHz) free-running • 1 - USB, 48MHz • 1 - 12/48MHz • 1 - 25MHz • 1 - REF, 14.318MHz • 1 - 12.288MHz Key Specifications: • CPU outputs cycle-cycle jitter < 85ps • PCIEX outputs cycle-cycle jitter < 125ps • SATA outputs cycle-cycle jitter < 125ps • PCI outputs cycle-cycle jitter < 500ps • +/- 100ppm frequency accuracy on all clocks Features/Benefits: • VDDSUSP allows 25MHz to run in S-states • Supports programmable spread percentage • Uses external 25MHz crystal, external crystal load caps are required for frequency tuning • PEREQ# pins to support PCIEX/SATA power management. • Low power differential clock outputs (No 50Ω resistor to GND needed) • Integrated 33Ω series resistor on all differential outputs. Pin Configuration FS3/12_288M_2x 1 VDD12_288 2 PEREQ1# 3 PEREQ2# 4 FS4/PCICLK0_2x 5 GND 6 VDDPCI 7 *ITP_EN/PCICLK_F0_2x 8 PEREQ3# 9 SEL12_48#/12_48MHz_2x 10 VDD 11 FSLA/USB48_2x 12 GND 13 DOTT_96MHzLR 14 DOTC_96MHzLR 15 FSLB 16 GNDSATA 17 SATAT_LR/PCIeT_LR3 18 SATAC_LR/PCIeC_LR3 19 VDDSATA 20 PCIeT_LR0 21 PCIeC_LR0 22 PCIeT_LR1 23 PCIeC_LR1 24 48 GND 47 GND 46 REF0_2x/FSLC 45 VDD14 44 Vtt_PwrGd/WOL_STOP# 43 VDDSUSP 42 25MHz 41 GND 40 X1_25 39 X2_25 38 PCI&PCIEX_STOP# 37 CPU_STOP# 36 SDATA 35 SCLK 34 GND 33 CPUT_LR0 32 CPUC_LR0 31 VDDCPU 30 CPUT_LR1 29 CPUC_LR1 28 CPUITPT_LR2/PCIeT_LR2 27 CPUITPC_LR2/PCIeC_LR2 26 VDDPCIEX 25 GND 48-TSSOP * Internal Pull-Up Resistor ** Internal Pull-Down Resistor IDT® Low Power Clock for Intel Atom®-Based Systems 1 1561A — 06/01/10 Free Datasheet http://www.datasheet4u.com/ 1 page ICS9LPRS436C Low Power Clock for Intel Atom®-Based Systems General Description The ICS9LPRS436C is a low power CK505-compatible clock targeted at Intel-based Netbooks and Nettops. This clock synthesizer provides a single chip solution for systems using the Intel NM10 chipset paired with the Intel N450/D410/D510 Atom® CPUs. The ICS9LPRS436C is driven with a 25MHz crystal. Block Diagram NonSS PLL 25M 14.318M NonSS PLL 12.288M 25M XTAL SS PLL 75M/ 100M CPU PCI PCIe/ SATA NonSS PLL DOT96 48MHz 12_48MHz Series Resistors for Single Ended Outputs D.C.Drive Strength Number of Loads to Drive 1 Match Point for N & P Voltage / Current (mA) 0.56 / 33 (17Ω) 2 0.92 / 66 (14Ω) Number of Loads Actually Driven. 1 Load Rs= 33Ω [39Ω] 39Ω [43Ω] 2 Loads Rs= - 22Ω [27Ω] 3 Loads Rs= - - Notes: 1. Preferred drive strengths using CK505 clock sources. Transmission lines to load do not share series resistors. 2. Desktop/Mobile Platforms with Zo = 50/55 ohms use the first resistor value. 3. Systems with Zo = 60 ohms use the resistor values in brackets [ ]. IDT® Low Power Clock for Intel Atom®-Based Systems 5 1561A — 06/01/10 5 Page ICS9LPRS436C Low Power Clock for Intel Atom®-Based Systems Driving LVDS inputs with the 9LPRS436 Value Receiver has Receiver does not Component termination have termination R7a, R7b 10K ohm 140 ohm R8a, R8b 5.6K ohm 75 ohm Cc 0.1 uF 0.1 uF Vcm 1.2 volts 1.2 volts Note 3.3 Volts 9LPRS436 Cc Cc R7a R7b L4 L4’ R8a R8b LVDS CLK Input IDT® Low Power Clock for Intel Atom®-Based Systems 11 1561A — 06/01/10 11 Page

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