MB1511 Fujitsu, MB1511 Datasheet
MB1511
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MB1511 Summary of contents
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... Serial Input PLL Frequency Synthesizer MB1511 DESCRIPTION The Fujitsu MB1511 is a single chip serial input PLL frequency synthesizer designed for VHF tuner and cellular telephone applications. It contains a 1.1 GHz dual modulus prescaler which enables pulse swallow function, and an analog switch to speed up lock up time. ...
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... MB1511 (Continued) • On-chip analog switch achieves fast lock up time • 2 types of phase detector output On-chip charge pump (Bipolar type) Output for external charge pump • Wide operating temperature: –40°C to +85°C • 20-pin Plastic Shrink Small Outline Package (Suffix: –PFV) ...
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... P pin is N-channel open drain output — No connection. 12, 19 Functions and OSC IN pin (test pin) output level fp. out pin outputs either programmable reference divider output (f ) depending upon FC pin input level. p output level. r output level. p MB1511 . OUT and program ...
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... MB1511 BLOCK DIAGRAM GND OSC 1 Cristal IN oscillator 3 OSC OUT Prescaler Control Data 13 1 bit latch Clock 11 : Data signal : Control signal 4 16 bit shift register 16 bit shift register 15 bit latch frequency 15 bit latch Programmable reference divider Binary 14-bit S reference counter ...
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... On rising edge of clock shifts one bit of serial data into the internal shift registers and when load enable pin is high level or open, stored data is transferred into latch depending upon the control bit. Control data "H" data is transferred into 15-bit latch. Control data "L" data is transferred into 18-bit latch. MB1511 A 127, A < ...
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... MB1511 (1) Programmable Reference Divider Programmable reference divider consists of 16-bit shift register, 15-bit latch and 14-bit reference counter. Serial 16-bit data format is shown below 14-BIT PROGRAMMABLE REFERENCE COUNTER DIVIDE RATIO Divide Ratio 16383 NOTES: Divide ratio less than 8 is prohibited. ...
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... Divide ratio 2047 S1 to S7: Swallow counter divide ratio setting bit 127 S18: Programmable counter divide ratio setting bit. (16 to 2047) C: Control bit (sets as low level). Data is input from MSB side. S10 S9 (S8) (S7 MB1511 MSB ...
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... MB1511 4. Phase Characteristics FC pin is provided to change phase characteristics of phase comparator. Characteristics of internal charge pump output level (D ), phase comparator output level ( R, P) are reversed depending upon FC pin input level. Also, O monitor pin (f ) output level of phase comparator is controlled by FC pin input level. The relation between outputs ...
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... L (Normal operationg mode) When an analog switch is inserted between LP1 and LP2, faster lock up times is achieved to reduce LPF time constant during PLL channal switching. CHARGE PUMP (CONTROL SIGNAL LE < < LPF-1 LPF-2 BISW ANALOG SW MB1511 fr < fp Analog Switch ON OFF VCO 9 ...
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... MB1511 ABSOLUTE MAXIMUM RATINGS (See WARNING) Parameter Power supply voltage Output voltage Open-drain voltage Output current Storage temperature WARNING: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional operation should be restricted to the conditions as detailed in the operational sections of this data sheet ...
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... OH O OUT V — — OFF I –1 OUT I 1 — ON =3V. Inputs are grounded and outputs are open. CC MB1511 = 2 5 – +85 C) Values Unit Typ. Max. 7.0 — mA — 1100 MHz 12 20 MHz — 6 dBm — 6 dBm — — ...
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... MB1511 MEASURMENT CIRCUIT P • X'tal 1000 pF 0 Oscilloscope ...
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... Depends on crystal oscillator With internal pull up resistor P : Open drain output Data Clock MB1511 D GND LD fin 100 0.01 F MB1511 OUTPUT From Controller 1000 Lock Detector ...
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... MB1511 PACKAGE DIMENSION 20 pin, Plastic SSOP (FPT-20P-M03) * 6.50±0.10(.256±.004) INDEX 0.65±0.12 (.0256±.0047) 5.85(.230)REF 1994 FUJITSU LIMITED F20012S-2C This dimension does not include resin protruction. +0.20 1.25 –0.10 +.008 .049 –.004 * 4.40±0.10 6.40±0.20 5.40(.213) (.173±.004) (.252±.008) NOM " ...
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... MB1511 FUJITSU LIMITED For further information please contact: Japan FUJITSU LIMITED Corporate Global Business Support Division Electronic Devices KAWASAKI PLANT, 4-1-1, Kamikodanaka Nakahara-ku, Kawasaki-shi Kanagawa 211-8588, Japan Tel: (044) 754-3763 Fax: (044) 754-3329 http://www.fujitsu.co.jp/ North and South America FUJITSU MICROELECTRONICS, INC. ...