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| FUJITSU SEMICONDUCTOR DATA SHEET DS04-21309-2E ASSP Serial Input PLL Frequency Synthesizer MB1511 s 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. It operates supply voltage of 3.0 V typ. and dissipates 7 mA typ. of current realized through the use of Fujitsu's unique U-ESBIC Bi-CMOS technology. The MB1511 is housed in SSOP package, this enables high integration. s FEATURES * * * * * Low power supply voltage: VCC = 2.7 to 5.5 V High operating frequency: fIN MAX = 1.1 GHz (VIN MIN = -10dBm) Pulse swallow function: 64/65 or 128/129 Low supply current: ICC = 7 mA typ. Serial input 18-bit programmable divider consisting of: Binary 7-bit swallow counter: 0 to 127 Binary 11-bit programmable counter: 16 to 2047 * Serial input 15-bit programmable reference divider consisting of: Binary 14-bit programmable reference counter: 8 to 16383 1-bit switch counter (SW) sets divide ratio of prescaler (Continued) s PACKAGE 20 pin, Plastic SSOP (FPT-20P-M03) 1 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: -40C to +85C * 20-pin Plastic Shrink Small Outline Package (Suffix: -PFV) s PIN ASSIGNMENT (TOP VIEW) OSC IN NC OSC OUT VP V CC DO GND LD NC fin 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 R NC P fout BiSW FC LE Data NC Clock (FPT-20P-M03) 2 MB1511 s PIN DESCRIPTION Pin No. 1 3 4 5 6 7 8 10 11 Pin Name OSCIN OSCOUT VP VCC DO GND LD fIN Clock I/O I O -- -- O -- O I I Functions Oscillator input. Oscillator output. A crystal is placed between OSCIN and OSCOUT. Power supply input for charge pump and analog switch. Power supply voltage input. Charge pump output. The characteristics of charge pump is reversed depending upon FC input. Ground. Phase comparator output. Normally this pin outputs high level. While the phase difference of fr and fp exists, this pin outputs low level. Prescaler input. The connection with an external VCO should be AC connection. Clock input for 19-bit shift register and 16-bit shift register. On rising edge of the clock shifts one bit of data into the shift registers. Binary serial data input. The last bit of the data is a control bit which specified destination of shift registers. When this bit is high level and LE is high level, the data stored in shift register is transferred to 15-bit latch. When this bit is low level and LE is high level, the data is transferred to 18-bit latch. Load enable input (with internal pull up resistor). When LE is high or open, the data stored in shift register is transferred into latch depending upon the control bit. At the time, internal charge pump output is connected to BISW pin because internal analog switch becomes ON state. Phase select input of phase comparator (with internal pull up resistor). When FC is low level, the characteristics of charge pump, phase comparator is reversed. FC input signal controls fout pin (test pin) output level, fr or fp. Analog switch output. Usually BISW pin is set high-impedance state. When internal analog switch is ON (LE pin is high level), this pin outputs internal charge pump output. Minitor pin of phase comparator input. fout pin outputs either programmable reference divider output (fr) or programmable divider output (fp) depending upon FC pin input level. FC = H: It is the same as fr output level. FC = L: It is the same as fp output level. Output for external charge pump. The characteristics are reversed according to FC input. P pin is N-channel open drain output. No connection. 13 Data I 14 LE I 15 FC I 16 BISW O 17 fOUT P R NC O 18 20 2, 9 12, 19 O O -- 3 MB1511 s BLOCK DIAGRAM 16 bit shift register V CC 5 16 bit shift register GND 7 15 bit latch LE 14 15 bit latch Monitor frequency changing circuit Phase comparator 17 fOUT 15 FC 8 LD Programmable reference divider OSC IN 1 Cristal oscillator Binary 14-bit S reference counter W 20 R fr fp OSC OUT 3 Analog switch 18 P 16 BISW Charge pump 19 bit shift register 19 bit shift register 4 VP 6 DO 18 bit latch fIN 10 Prescaler 7 bit latch 11 bit latch Programmable Binary 7 bit swallow counter Data 13 Control 1 bit latch Binary 11 bit programmable counter Control circuit Clock 11 : Data signal : Control signal 4 MB1511 s FUNCTIONAL DESCRIPTIONS 1. Pulse Swallow Function The divide ratio is set using the following equation. fVCO = [(M x N) + A] x fOSC / R fVCO : Output frequency of external voltage controlled oscillator (VCO) M : Preset modulus of external dual modulus prescaler (64 or 128) N : Preset divide ratio of binary 11-bit programmable counter (16 to 2047) A : Preset divide ratio of binary 7-bit swallow counter (0 A 127, A < N) fOSC : Output frequency of the external reference frequency oscillator R : Preset divide ratio of binary 14-bit programmable reference counter (8 to 16383) 2. Serial Data Input Serial data input is achieved by three inputs, such as Data pin, Clock pin and LE pin. Serial data input controls 15bit programmable reference divider and 18-bit programmable divider, respectively. Binary serial data is input to Data pin. 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. 5 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. Control bit LSB C S 1 S 2 S 3 S 4 S 5 S 6 S 7 Divide ratio of prescaler setting bit MSB S 8 S 9 S 10 S 11 S 12 S 13 S 14 S W Divide ratio of programmable reference counter setting bit * 14-BIT PROGRAMMABLE REFERENCE COUNTER DIVIDE RATIO Divide Ratio R 8 9 S 14 0 0 S 13 0 0 S 12 0 0 S 11 0 0 S 10 0 0 S 9 0 0 S 8 0 0 S 7 0 0 S 6 0 0 S 5 0 0 S 4 1 1 S 3 0 0 S 2 0 0 S 1 0 1 ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1 16383 1 1 1 1 1 1 1 1 1 1 1 1 NOTES: Divide ratio less than 8 is prohibited. Divide ratio: 8 to 16383 SW: This bit selects divide ratio of prescaler. SW = H: 64/65 SW = L: 128/129 S1 to S14: These bits select divide ratio of programmable reference divider. C: Control bit (sets as high level). Data is input from MSB side. 6 ... 1 MB1511 (2) Programmable Divider Programmable divider consists of 19-bit shift register, 18-bit latch, 7-bit swallow counter and 11-bit programmable counter. Serial 19-bit data format is shown following page. Control bit LSB C S 1 S 2 S 3 S 4 S 5 S 6 S 7 S 8 S 9 S 10 S 11 S 12 S 13 S 14 MSB S 15 S 16 S 17 S 18 Divide ratio of swallow counter setting bit Divide ratio of programmable counter setting bit * 7-bit Swallow Counter Divide Ratio Divide Ratio S A 0 1 ... 7 0 0 ... S 6 0 0 ... S 5 0 0 ... S 4 0 0 ... S 3 0 0 ... S 2 0 0 ... S 1 0 1 ... * 11-bit Programmable Counter Divide Ratio Divide Ratio S N 16 17 ... 18 0 0 ... S 17 0 0 ... S 16 0 0 ... S 15 0 0 ... S 14 0 0 ... S 13 0 0 ... S 12 1 1 ... S 11 0 0 ... S 10 0 0 ... S 9 0 0 ... 1 S 8 1 1 ... 1 127 1 1 1 1 1 1 1 2047 Notes: 1 1 1 1 1 1 1 1 1 Note: Divide ratio: 0 to 127 Divide ratio less than 16 is prohibited. Divide ratio: 16 to 2047 S1 to S7: Swallow counter divide ratio setting bit. (0 to 127) S8 to S18: Programmable counter divide ratio setting bit. (16 to 2047) C: Control bit (sets as low level). Data is input from MSB side. 3. Serial Data Input Timing t 1~t 5 1 s Data S18 = MSB S17 S10 S9 S1 = LSB C : CONTROL BIT * (SW) (S14) (S8) (S7) (S1) (C : CONTROL BIT) Clock LE t 1 t2 t3 t4 t5 Notes: Paranthesis data is used for setting divide ratio of programmable reference divider. On rising edge of clock shifts one bit of data in the shift register. 7 MB1511 4. Phase Characteristics FC pin is provided to change phase characteristics of phase comparator. Characteristics of internal charge pump output level (DO), phase comparator output level (R, P) are reversed depending upon FC pin input level. Also, monitor pin (fOUT) output level of phase comparator is controlled by FC pin input level. The relation between outputs (DO, R, P) and FC input level are shown below. FC : "H" or open DO R P fOUT DO R FC : "L" P fOUT fr > fp fr = fp fr < fp H Z L L L H L Z Z (fr) (fr) (fr) L Z H H L L Z Z L (fp) (fp) (fp) Note: Z = (High impedance) Depending upon VCO characteristics, FC pin should be set accordingly: VCO Output Frequency (1) * When VCO characteristics are like (1), FC should be set High or open circuit; When VCO characteristics are like (2), FC should be set Low. (2) VCO Input Voltage 8 MB1511 Phase comparator output waveforms are shown below. fr fp LD H DO fr > fp fr = fp Z L fr < fp fr < fp fr < fp Notes: Phase difference detection range: -2 to +2 Spike appearance depends on charge pump characteristics. Also, the spike is output in order to diminish dead band. When fr>fp or fr LE Analog Switch H (Changing the divide ratio of internal prescaler) L (Normal operationg mode) ON OFF 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. DO CHARGE PUMP LPF-1 LPF-2 VCO BISW ANALOG SW (CONTROL SIGNAL LE) 9 MB1511 s ABSOLUTE MAXIMUM RATINGS (See WARNING) Parameter Symbol VCC VP VOUT VOOP IOUT TSTG Rating -0.5 to 7.0 VCC to 10.0 -0.5 to VCC +0.5 -0.5 to 8.0 10 -55 to +125 Unit V V V V mA C 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. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. s RECOMMENDED OPERATING CONDITIONS Parameter Symbol VCC VP VIN Ta Value Min. 2.7 VCC GND -40 Typ. 3.0 -- -- -- Max. 5.5 8.0 VCC +85 Unit V V V C Power supply voltage Input voltage Operating temperature HANDLING PRECAUTIONS * This device should be transported and stored in anti-static containers. * This is 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 handing or transporting PC boards with devices. 10 MB1511 s ELECTRICAL CHARACTERINSTICS (VCC = 2.7 V to 5.5 V, Ta = -40C to +85C) Parameter Symbol ICC fin*2 OSCIN fin-1* 3 4 Values Min. -- 10 -- -4 -10 0.5 VCCx0.7 -- -- -- -- -- 2.2 -- -- -1.0 1.0 -- Typ. 7.0 -- 12 -- -- -- -- -- 1.0 -1.0 50 -60 -- -- -- -- -- 50 Max. -- 1100 20 6 6 -- -- VCCx0.3 -- -- -- -- -- 0.4 1.1 -- -- -- Unit mA MHz MHz dBm dBm Vp-p V V A A A A V V A mA mA Power supply current*1 Operating frequency fIN fOSC Vfin1 Vfin2 VOSC VIH VIL IIH IIL IOSC ILE VOH*5 VOL IOFF IOH IOL RON Input sensitivity fin-2* OSCIN High-level input voltage Low-level input voltage High-level input current Low-level input current Input current High-level output current Low-level output current N-channel open drain cutoff current Output current Analog switch on resistance Notes: *1 *2 *3 *4 *5 *6 Except fin and OSCIN Data clock OSCIN LE, FC Except DO and OSCOUT DO, P*6 Except DO and OSCOUT fin =1.1 GHz, OSCIN=12 MHz, VCC=3V. Inputs are grounded and outputs are open. AC coupling. Minimum operating frequency is measured when a capacitor 1000pF. VCC=4.0 to 5.5V, 50 VCC=2.7 to 4.0V, 50 VCC=3V VP=VCC to 8V, VOOP=GND to 8V 11 MB1511 s MEASURMENT CIRCUIT VCC = 3 V 1000 pF P*G 50 10 0.1 F 7 5 4 X'tal VP = 6 V 3 1 11 13 14 17 Oscilloscope 12 MB1511 s TYPICAL APPLICATION EXAMPLE VPX (6V) 10 k 12 k 12 k LPF VCO OUTPUT From Controller 10 k 47 k 20 R 18 P 17 fout 16 BiSW 15 FC 14 LE 13 Data 11 Clock 47 k MB1511 OSC IN 1 OSC OUT 3 VP 4 6V V CC 5 3V DO 6 GND 7 LD 8 fin 10 1000 pF V CC (3 V) 100 k 33 k 0.01 F Lock Detector 10 k X'tal C1 C2 0.1 F VPX, VP : C1, C2 P : 8V max. Depends on crystal oscillator With internal pull up resistor Open drain output LE, FC : : 13 MB1511 s PACKAGE DIMENSION 20 pin, Plastic SSOP (FPT-20P-M03) *: This dimension does not include resin protruction. * 6.500.10(.256.004) 1.25 -0.10 +.008 .049 -.004 +0.20 0.10(.004) INDEX *4.400.10 6.400.20 (.173.004) (.252.008) 5.40(.213) NOM 0.650.12 (.0256.0047) 0.22 -0.05 +.004 .009 -.002 +0.10 "A" 0.15 -0.02 +.002 .006 -.001 +0.05 Details of "A" part 0.100.10(.004.004) (STAND OFF) 5.85(.230)REF 0 10 0.500.20 (.020.008) C 1994 FUJITSU LIMITED F20012S-2C-4 Dimensions in mm (inches). 14 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 All Rights Reserved. The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before ordering. The information and circuit diagrams in this document presented as examples of semiconductor device applications, and are not intended to be incorporated in devices for actual use. Also, FUJITSU is unable to assume responsibility for infringement of any patent rights or other rights of third parties arising from the use of this information or circuit diagrams. FUJITSU semiconductor devices are intended for use in standard applications (computers, office automation and other office equipment, industrial, communications, and measurement equipment, personal or household devices, etc.). CAUTION: Customers considering the use of our products in special applications where failure or abnormal operation may directly affect human lives or cause physical injury or property damage, or where extremely high levels of reliability are demanded (such as aerospace systems, atomic energy controls, sea floor repeaters, vehicle operating controls, medical devices for life support, etc.) are requested to consult with FUJITSU sales representatives before such use. The company will not be responsible for damages arising from such use without prior approval. Any semiconductor devices have inherently a certain rate of failure. You must protect against injury, damage or loss from such failures by incorporating safety design measures into your facility and equipment such as redundancy, fire protection, and prevention of over-current levels and other abnormal operating conditions. If any products described in this document represent goods or technologies subject to certain restrictions on export under the Foreign Exchange and Foreign Trade Control Law of Japan, the prior authorization by Japanese government should be required for export of those products from Japan. http://www.fujitsu.co.jp/ North and South America FUJITSU MICROELECTRONICS, INC. Semiconductor Division 3545 North First Street San Jose, CA 95134-1804, USA Tel: (408) 922-9000 Fax: (408) 922-9179 Customer Response Center Mon. - Fri.: 7 am - 5 pm (PST) Tel: (800) 866-8608 Fax: (408) 922-9179 http://www.fujitsumicro.com/ Europe FUJITSU MIKROELEKTRONIK GmbH Am Siebenstein 6-10 D-63303 Dreieich-Buchschlag Germany Tel: (06103) 690-0 Fax: (06103) 690-122 http://www.fujitsu-ede.com/ Asia Pacific FUJITSU MICROELECTRONICS ASIA PTE LTD #05-08, 151 Lorong Chuan New Tech Park Singapore 556741 Tel: (65) 281-0770 Fax: (65) 281-0220 http://www.fmap.com.sg/ F9803 (c) FUJITSU LIMITED Printed in Japan 16 |
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