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SM8707E Dataheets PDF



Part Number SM8707E
Manufacturers NPC
Logo NPC
Description Clock Generator
Datasheet SM8707E DatasheetSM8707E Datasheet (PDF)

SM8707E/F Clock Generator with Dual PLLs OVERVIEW The 8707E/F are dual-PLL clock generator ICs, using a 27MHz master clock, that generate independent audio clock, video clock, and signal processor clock outputs needed in DVD player/recorder applications. Each PLL loop filter and crystal oscillator circuit are built-in and require no external components, resulting in high-precision clocks. The lineup includes devices that support both 44.1/48kHz audio sampling frequencies (fs), switchable using a.

  SM8707E   SM8707E


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SM8707E/F Clock Generator with Dual PLLs OVERVIEW The 8707E/F are dual-PLL clock generator ICs, using a 27MHz master clock, that generate independent audio clock, video clock, and signal processor clock outputs needed in DVD player/recorder applications. Each PLL loop filter and crystal oscillator circuit are built-in and require no external components, resulting in high-precision clocks. The lineup includes devices that support both 44.1/48kHz audio sampling frequencies (fs), switchable using a control pin. The sampling frequency can be switched during operation without generating any output spike noise. FEATURES ■ Supply voltage: 3.0 to 3.6V ■ Low current consumption: 35mA typ. (VDD=3.3V, all outputs with no load) ■ 27MHz master clock (internal PLL reference clock) ■ Generated clocks Video system output Audio system output Signal processor system output SM8707E 27.0000MHz 512fs 33.8688MHz ■ PLL loop filter built-in ■ Crystal oscillator circuit built-in ■ Sampling frequency fs: 44.1/48kHz ■ 16-pin VSOP package (Pb free) SM8707F 27.0000MHz 768fs 16.9344MHz 33.8688MHz ■ Low jitter output (1-sigma output load capacitance typical values) Video system output Audio and Signal processor system output SM8707E 20ps 55ps SM8707F 20ps 40ps APPLICATIONS ■ DVD players/recorders ■ DVD car navigation system PACKAGE DIMENSIONS (Unit : mm) Weight: 0.07g ORDERING INFOMATION Device Package SM8707EV SM8707FV 16pin VSOP SEIKO NPC CORPORATION - 1 PINOUT (Top view) SM8707E/F VDD1 VSS1 MO1 MO2(E ver.) NC(F ver.) VDD2 VSS2 XTI XTO 1 8 16 NC SO2 FSEL SO1 VDD3 VSS3 AO2 9 AO1 PIN DESCRIPTION No. Name 1 VDD1 2 VSS1 3 MO1 MO2(E ver.) 4 NC(F ver.) 5 VDD2 6 VSS2 7 XTI 8 XTO 9 AO1 10 AO2 11 VSS3 12 VDD3 13 SO1 14 FSEL 15 SO2 16 NC I/O Description - Supply for digital block - Ground for digital block O Video system output O Video system output - Non connection output (leave pin open circuit) - Supply for analog block - Ground for analog block I Crystal oscillator connection or external clock input O Crystal oscillator connection O Audio system output O Audio system output - Ground for digital block - Supply for digital block O Signal processor system output I Sampling frequency select O Signal processor system output - Non connection (leave pin open circuit or connect to VDD) SEIKO NPC CORPORATION - 2 BLOCK DIAGRAM SM8707E/F FSEL XTI XTO Reference Divider 0 Phase Detector 0 Charge Pump 0 LPF 0 VCO 0 X′tal OSC Loop Divider 0 Reference Divider 1 Phase Detector 1 Charge Pump 1 LPF 1 VCO 1 Control Logic Loop Divider 1 AO1 AO2 SO1 SO2 MO1 MO2(E ver.) NC (F ver.) SEIKO NPC CORPORATION - 3 SM8707E/F Note: Unless otherwise noted, VDD applies to VDD1, VDD2, and VDD3. Similarly, VSS applies to VSS1, VSS2, and VSS3. SPECIFICATIONS Absolute Maximum Ratings Parameter Supply voltage range Supply voltage deviation Input voltage range Output voltage range Power dissipation Storage temperature range Symbol VDD1, VDD2, VDD3 VDD1-VDD2, VDD1-VDD3, VDD2-VDD3 VIN VOUT PD TSTG Rating -0.3 to +6.5 ± 0.1 -0.3 to VDD+0.3 -0.3 to VDD+0.3 165 -55 to +125 Unit V V V V mW C Recommended Operating Conditions VSS=VSS1=VSS2=VSS3=0V unless otherwise noted. SM8707E Parameter Symbol Condition Supply voltage ranges Output load capacitance 1 Output load capacitance 2 Output load capacitance 3 Master clock frequency Operating temperature range VDD1,VDD2,VDD3 CL1 CL2 CL3 fXTAL TOPR (Note 1,2,3) MO1 output MO2 output SO1,SO2,AO1,AO2 outputs When using crystal oscillator MIN +3.0 -10 Rating TYP - 27.0000 - MAX +3.6 40 25 15 +75 Unit V pF pF pF MHz ℃ SM8707F Parameter Symbol Condition MIN Rating TYP MAX Unit Supply voltage ranges VDD1,VDD2,VDD3 (Note 1,2,3) +3.0 - +3.6 V Output load capacitance 1 CL1 MO1,SO1,SO2 outputs - - 25 pF Output load capacitance 2 CL2 AO1,AO2 outputs - - 15 pF Master clock frequency fXTAL When using crystal oscillator - 27.0000 - MHz Operating temperature range TOPR -40 - +85 ℃ Note 1. The supply voltage is defined relative to VSS=0V. Note 2. The supply voltages applied on VDD1, VDD2 and VDD3 should be derived from a common supply source. Note 3. If the supply voltages on VDD1, VDD2 and VDD3 are from different sources, they should be applied simultaneously. The SM8707 may be damaged if the supply voltage timing is different. SEIKO NPC CORPORATION - 4 SM8707E/F DC Electrical Characteristics ■ SM8707E fXTAL=27.0000MHz, VDD=3.3V ± 0.3V, VSS=0V, Ta=-10 to +75C unless otherwise noted. ■ SM8707F fXTAL=27.0000MHz, VDD=3.3V ± 0.3V, VSS=0V, Ta=-40 to +85C unless otherwise noted. Parameter Symbol Pins Condition MIN Rating TYP Current consumption IDD VDD VDD=3.3V,Ta=25℃,fs=48kHz, Crystal oscillator connected, no load on all outputs - 35 Input voltage VIH FSEL,XTI VIL VDD=3.3V Input current IIH1 FSEL*1 IIL1 IIH2 XTI IIL2 VIN=VDD VIN=0V VIN=VDD VIN=0V Output voltage VOH All outputs IOH=-2mA VOL excluding XTO IOL=2mA 0.8VDD - -100 - -40 VDD-0.4 - - *1. FSEL.


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