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AK8135S

Part Number	AK8135S
Manufacturer	AKM
Description	Multi Clock Generator
Published	May 11, 2014
Detailed Description	AK8135S Preliminary Low Power Multiclock Generator with VCFS AK8135S Features 30.000MHz Crystal Input One 30.000MHz-Ref...
Datasheet	AK8135S PDF File

Overview

AK8135S Preliminary Low Power Multiclock Generator with VCFS AK8135S Features 30.
000MHz Crystal Input One 30.
000MHz-Reference Output Selectable Clock out Frequencies: - 25.
000 MHz at CLK1 - 30.
000 MHz at CLK2 - 33.
000 MHz at CLK3-5 - 27.
000 MHz at REF1-3 Built-in two VCFS - VCFS1 Pull Range: ±120ppm (typ.
) - VCFS2 Pull Range: ±135ppm (typ.
) Low Jitter Performance - Cycle to Cycle Jitter: 33.
3 psec (Max.
) at CLK1 50 psec (Typ.
) at CLK2-5 - Period Jitter: 25 psec (Typ.
) at REF1-3 - Long term jitter： 66.
7 psec (Typ.
) at REF1-3 Low Current Consumption: (29) mA (Typ.
) at 3.
3V Supply Voltage: 3.
0 – 3.
6V Operating Temperature Range: -20 to +85℃ Package: 48-pin LQFP (Lead free) Description AK8135S is a member of AKM’s low power multi clock generator family designed for Recorders, DTVs or STBs, requiring a range of system clocks with high performance.
AK8135S generates different frequency clocks from a 30.
000MHz crystal oscillator and provides them to eight outputs.
Th e on-chip VCFS (Voltage Controlled Frequency Synthesizer) accepts a voltage control input to allow the output clocks to vary by ±120/135 ppm for synchronizing to the external clock system.
Both circuitries of VCFS and PLL in AK8135S are derived from AKM’s long-term-experienced clock device technology, and enable clock output to perform low jitter and to operate with very low current consumption.
AK8135S is available in a 48-pin LQFP package.
Applications • • • HDD, DVD, BD Recorder DTV Set-Top-Boxes draft-E-00 -1- Apr-11 http://www.
Datasheet4U.
com AK8135S Block Diagram VDD PLL & Divide Logic CLK1 XI Crystal OSC CLK2 PLL & Divide Logic CLK3 CLK4 CLK5 CLK5PD XO VCFS1 VIN1 ADC1 Fractional PLL1 REF1 REF2 VCFS2 VIN2 VDD REF2PD ADC2 Fractional PLL2 REF3 CLK5PD VDD VREF REF2PD TEST1 TEST2 TEST3 GND Figure 1: AK8135S Multi Clock Generator Apr-11 -2- draft-E-00 AK8135S Pin Descriptions 36:GND1 35:GND1 34:TEST2 33:XI 31:XO 30:GND6 29:VDD6 28:GND1 27:VIN1 26:GND1 25:VIN2 32:TEST1 37:GND1 38:...

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