MB88155PFT-G-100-JNE1 Fujitsu Semiconductor America Inc, MB88155PFT-G-100-JNE1 Datasheet
MB88155PFT-G-100-JNE1
Specifications of MB88155PFT-G-100-JNE1
Related parts for MB88155PFT-G-100-JNE1
MB88155PFT-G-100-JNE1 Summary of contents
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FUJITSU MICROELECTRONICS DATA SHEET Spread Spectrum Clock Generator MB88155 DESCRIPTION MB88155 is a clock generator for EMI (Electro Magnetic Interference) reduction. The peak of unnecessary radi- ation noise (EMI) can be attenuated by making the oscillation frequency slightly modulate periodically ...
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MB88155 PRODUCT LINEUP The MB88155 is available in different models : 2 models different in multiplier ( × 1 and × modulation type (center-spreading and down-spreading input frequency range at a multiplier of ...
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PIN ASSIGNMENT XIN 1 MB88155 XOUT 2 -xx0 ENS 3 -xx1 SEL 4 PIN DESCRIPTION Pin name I/O Pin no. XIN I XOUT O ENS/XPD I SEL I REFOUT O CKOUT O ...
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MB88155 I/O CIRCUIT TYPE Pin SEL, XPD ENS REFOUT 4 Circuit type 50 k Remarks CMOS hysteresis input CMOS hysteresis input with pull-up resistor of 50 kΩ (Typ) • CMOS output = 3 mA • • “L” output ...
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Pin Circuit type CKOUT Note: For XIN pin and XOUT pin, refer to “ OSCILLATION CIRCUIT”. MB88155 Remarks • CMOS output = 4 mA • • “L” output at power-down 5 ...
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MB88155 HANDLING DEVICES Preventing Latch-up A latch-up can occur if, on this device, (a) a voltage higher than V input or output pin or (b) a voltage higher than the rating is applied between V significantly increases the power supply ...
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BLOCK DIAGRAM Modulation enable/ power down setting ENS/XPD Modulation rate setting SEL XOUT Power down signal XIN Phase compare Reference 1 clock glitchless IDAC (current output D/A converter) provides precise ...
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MB88155 PIN SETTING The modulation clock requires stabilization wait time after the PIN setting is changed. For the modulation clock stabilization wait time, assure the maximum value for “Lock-up time” in the AC Characteristics list in “ ELECTRICAL CHARACTERISTICS”. ENS ...
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Center spread Spectrum is spread (modulated) by centering on the non-spread frequency. Radiation level Example of center spread at modulation rate ± 1.0% • Down spread Spectrum is spread (modulated) below the non-spread frequency. Modulation width 2.0% Radiation level ...
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MB88155 ABSOLUTE MAXIMUM RATINGS Parameter Symbol Power supply voltage* Input voltage* Output voltage* Storage temperature Operation junction temperature Output current Overshoot V Undershoot V IUNDER * : The parameter is based WARNING: Semiconductor devices can be permanently ...
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RECOMMENDED OPERATING CONDITIONS Parameter Symbol Power supply voltage V DD XIN, SEL, “H” level input voltage V IH ENS, XPD XIN, SEL, “L” level input voltage V IL ENS, XPD Input clock t DCI duty cycle Operating temperature Ta WARNING: ...
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MB88155 ELECTRICAL CHARACTERISTICS • DC Characteristics Parameter Symbol Power supply current OHC V OHR Output voltage V OLC V OLR Z OC Output impedance Z OR Input capacitance C IN Input pull-up resistor R PU Load capacitance ...
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AC Characteristics Parameter Symbol Pin Oscillation XIN frequency XOUT Input frequency f XIN in REFOUT Output frequency f OUT CKOUT SRc CKOUT Output slew rate SR REFOUT R t CKOUT 1.5 V reference level Output clock DCC ...
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MB88155 OUTPUT CLOCK DUTY CYCLE (t CKOUT, REFOUT INPUT FREQUENCY (f in XIN OUTPUT SLEW RATE (SR CKOUT, REFOUT = (2.4 − 0.4) /t Note : (2.4 − 0. ...
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MODULATION WAVEFORM • Modulation rate ± 1.0%, example of center spread CKOUT output frequency + 1.0 % Frequency at modulation off − 1.0 % • Modulation rate − 1.0%, example of down spread CKOUT output frequency Frequency at modulation off ...
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MB88155 LOCK-UP TIME 3 XIN V XPD V SEL ENS CKOUT If the XPD pin is fixed at the “H” level, the maximum time after the power is turned on until the set clock signal is output ...
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XIN V IH ENS (Lock-up time CKOUT If the ENS pin is used for modulation enable control during normal operation, the set clock signal is output from the CKOUT pin at most the lock-up time “t Note ...
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MB88155 OSCILLATION CIRCUIT The following schematic on the left-hand side shows a sample connection of a general resonator. The oscillation circuit contains a feedback resistor (1 MΩ) . The values of capacitors (C constant of the resonator used. The following ...
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INTERCONNECTION CIRCUIT EXAMPLE Oscillation stabilization capacitance (refer to “ OSCILLATION CIRCUIT” Capacitor of 10 µF or higher Capacitor of about 0.01 µF (connect a capacitor of ...
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MB88155 SPECTRUM EXAMPLE CHARACTERISTICS The condition of the examples of the characteristic is shown as follows : Input frequency = 16 MHz (Output frequency = 64 MHz : Using MB88155-410 (Multiplied Power-supply voltage = 3.3 V, None ...
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... MB88155PFT- 12.5 MHz to G-112-JNE1 25 MHz MB88155PFT- 25 MHz to G-113-JNE1 50 MHz MB88155PFT- G-400-JNE1 MB88155PFT- G-402-JNE1 12.5 MHz to Multiplied 20 MHz by 4 MB88155PFT- G-410-JNE1 MB88155PFT- G-412-JNE1 MB88155PFT- 12.5 MHz to G-100-JN-EFE1 25 MHz MB88155PFT- 25 MHz to G-101-JN-EFE1 50 MHz Multiplied by 1 MB88155PFT- 12.5 MHz to G-102-JN-EFE1 25 MHz MB88155PFT- 25 MHz to G-103-JN-EFE1 ...
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... MHz MB88155PFT- 12.5 MHz to G-102-JN-ERE1 25 MHz MB88155PFT- 25 MHz to G-103-JN-ERE1 50 MHz Multiplied MB88155PFT- 12.5 MHz to G-110-JN-ERE1 25 MHz MB88155PFT- 25 MHz to G-111-JN-ERE1 50 MHz MB88155PFT- 12.5 MHz to G-112-JN-ERE1 25 MHz MB88155PFT- 25 MHz to G-113-JN-ERE1 50 MHz MB88155PFT- G-400-JN-ERE1 MB88155PFT- G-402-JN-ERE1 12.5 MHz to Multiplied 20 MHz MB88155PFT- G-410-JN-ERE1 MB88155PFT- G-412-JN-ERE1 ...
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PACKAGE DIMENSIONS 8-pin plastic TSSOP (FPT-8P-M07) 8-pin plastic TSSOP (FPT-8P-M07) 3.10±0.10(.122±.004 INDEX 4 1 0.65(.026) 0.22±0.10 (.009±.004) TYP 1.95(.077) REF 2006 FUJITSU LIMITED F08015Sc-1-1 C Please confirm the latest Package dimension by following URL. http://edevice.fujitsu.com/package/en-search/ Lead pitch Package ...
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FUJITSU MICROELECTRONICS LIMITED Shinjuku Dai-Ichi Seimei Bldg. 7-1, Nishishinjuku 2-chome, Shinjuku-ku, Tokyo 163-0722, Japan Tel: +81-3-5322-3347 Fax: +81-3-5322-3387 http://jp.fujitsu.com/fml/en/ For further information please contact: North and South America FUJITSU MICROELECTRONICS AMERICA, INC. 1250 E. Arques Avenue, M/S 333 Sunnyvale, CA ...