Assessments - 3, GPA: 4
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Facilidade de uso
It operates with a supply voltage of 3.0 V typ. and dissipates 1.0 mA typ.(270MHz) of current realized through the use of Fujitsu Microelectronics’s CMOS technology. The MB15C101 is ideally suitable for PHS systems. ¦ FEATURES • Low power supply current: ICC = 1.0 mA typ. (VCC = 3 V, 270MHz) • Pulse swallow function; Prescaler: 16/17 • Setting frequency (Selectable by Div input.) – fosc = 19.2 MHz, fIF = 233.15 MHz (Div = “H”) – fosc = 19.2 MHz, fIF = 259.20 MHz (Div = “L”) • Lock detector • Low power supply voltage: VCC = 2.4 V min. • Wide operating temperature: Ta = –40 to +85°C ¦ PACKAGE 8-pin plastic SSOP (FPT-8P-M03) 16-pad plastic BCC (LCC-16P-M06) Copyright©1999-2008 FUJITSU MICROELECTRONICS LIMITED All rights reserved 1999.4 1 ¦ PIN ASSIGNMENT (TOP VIEW) N.C. N.C. (TOP VIEW) 16 15 1 8 2 7 3 6 4 5 N.C. 1 14 N.C. OSC IN DO VCC LD DIV2 13 fin GND fout fout 3 12 GND DIV fin LD 4 11 DO (FPT-8P-M03) OSCin 5 10 VCC N.C. 6 9 N.C. 78 N.C. N.C. (LCC-16P-M06) ¦ PIN DESCRIPTIONS Pin No. Pin name I/O Descriptions SSOP8 BCC16 – 1,6,7,8, 9,14, 15,16 N.C – No connection 1 10 VCC – Power supply voltage input (2.4 V to 3.6 V). 2 11 DO O Charge pump output 3 12 GND – Ground 4 13 fin I Prescaler input. Connection should be with AC coupling. 5 2 Div I Divide ratio switching input. Two kinds of divide ratios are selectable by Div input “H” or “L”. 6 3 fout O Test purpose output. This pin is an open drain output so thatshould be left open usually. 7 4 LD O Lock detector output. LD = H ; Lock LD = L ; Unlock 8 5 OSCin I Reference counter input. Connection should be with ACcoupling. 2 MB15C101 ¦ BLOCK DIAGRAM VCC OSCIN fin GND DIV fout LD Do fr fp Oscillator input buffer Reference divider Reference counter (R) Data setting circuit Prescaler 16 / 17(P) Control circuit Swallow counter (A) Main counter (N) Phase comparator charge pump Lock detector Output selector Comparison divider 3 1 ¦ ABSOLUTE MAXIMUM RATINGS Parameter Symbol Rating Unit Min. Max. Power supply voltage VCC –0.5 +4.0 V Input voltage VI –0.5 VCC +0.5 V Output voltage VOUT –0.5 VCC +0.5 V Output current IOUT 0 +5 mA Storage temperature TSTG –55 +125 °C WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current, temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings. ¦ RECOMMENDED OPERATING CONDITIONS Parameter Symbol Value Unit Note Min. Typ. Max. Power supply voltage VCC 2.4 3.0 3.6 V Input voltage VIN GND – VCC V Operating temperature Ta –40 – +85 °C Handling Precautions • This device should be transported and stored in anti-static containers. • This is a static-sensitive device; take proper anti-ESD precautions. Ensure that personnel and equipment are properly grounded. Cover workbenches with grounded conductive mats. • Always turn the power supply off before inserting or removing the device from its socket. • Protect leads with a conductive sheet when handling or transporting PC boards with devices. 4 1 ¦ ELECTRICAL CHARACTERISTICS Recommended operating conditions unless otherwise noted. Parameter Symbol Condition Value Unit Min. Typ. Max. Power supply current ICC PLL is locked.(270MHz) VCC = 3.0 V, Ta = +25°C 0.1 1.0 2.0 mA Operating frequency fin fin AC coupling by 1000 pFcapacitor 50 – 270 MHz OSCIN fosc AC coupling by 1000 pFcapacitor 3 – 26 MHz Input sensitivity fin Pfin AC coupling by 1000 pFcapacitor –10 – +2 dBm OSCIN Vosc AC coupling by 1000 pFcapacitor 0.5 – – Vpp Input voltage Div VIH – VCC . 0.7 – – V VIL – – – VCC . 0.3 V Input current Div IIH – – – 1.0 .A IIL – –1.0 – – .A Input current OSCIN IOSC – –100 – 100 .A Output voltage Do VOH VCC = 3.0 V, IOH=–0.3mA 2.6 – – V VOL VCC = 3.0 V, IOL= 0.3mA – – 0.4 V Output current Do IOH VCC = 3.0 V, VOH = 2V, Ta = +25°C – –6.0 – mA IOL VCC = 3.0 V, VOL = 1V, Ta = +25°C – 6.0 – mA High impedance cut off current Do IOFF 0 . VDO . VCC – – 3 nA 5 1 ¦ FUNCTIONAL DESCRIPTIONS Two different frequencies can be selected by Div input “H” or “L”. The divide ratios are calculated using the following equation: fVCO = {(P . N) + A} . fOSC . R (A < N) Symbol Description Div = “H” Div = “L” fvco Output frequency of external VCO 233.15 MHz 259.20 MHz fosc Reference oscillation frequency 19.2 MHz 19.2 MHz N Divide ratio of the main counter 291 33 A Divide ratio of the swallow counter 7 12 P Preset divide ratio of dual modulus prescaler 16/17 16/17 R Divide ratio of the reference counter 384 (fr = 50 kHz) 40 (fr = 480 kHz) ¦ PHASE DETECTOR TIME CHART fr fp LD DO High impedance tWLtWU Note: • .Phase error detection range: –2. to +2. • Pulses on Do output signal during locked state are output to prevent dead zone. • LD output becomes low when phase is tWU or more. LD output becomes high when phase error is tWLor less and continues to be so for three cycles or more. •.tWU and tWL depend on OSCin input frequency. tWU > 8/fosc (s) (e. g.tWU > 625.0ns, foscin = 12.8 MHz) tWL < 16/fosc (s) (e. g. tWL < 1250.0ns, foscin = 12.8 MHz) 6 1 ¦ MEASURMENT CIRCUIT ...