MB1504L

DS04–21301–5E DATA SHEET MB1504/MB1504H/MB1504L ASSP SERIAL INPUT PLL FREQUENCY SYNTHESIZER SERIAL INPUT PLL FREQUENCY SYNTHESIZER WITH 520MHz PRESCALER The Fujitsu MB1504/MB1504H/MB1504L, utilizing BI-CMOS technology, is a single chip serial input PLL frequency synthesizer with pulse-swallow function. The MB1504 series contains a 520MHz two modulus prescaler that can select either 32/33 or 64/65 divide ratio; control signal generator; 16-bit shift register; 15-bit latch; programmable reference divider (binary 14-bit programmable reference counter); 1-bit switch counter; phase comparator with phase inverse function; charge pump; crystal oscillator; 19-bit shift register; 18-bit latch; and a programmable divider (binary 7-bit swallow counter and binary 11-bit programmable counter). The MB1504 operates from a low supply voltage (3V typ) and consumes low power (30mW at 520MHz). MB1504 Product Line VP Voltage MB1504 MB1504H MB1504L 8V max 10V max 8V max VOOP Voltage 8.5V max 10.0V max 8.5V max Lock up Time Middle speed High speed Low speed DO Output Width Middle Low High High-level Output Current Middle High Low Low-level Output Current Middle Low High PLASTIC PACKAGE DIP-16P-M04 FEATURES • High operating frequency: fIN MAX=520MHz (VIN MIN=0.20VP-P) • On-chip prescaler • Low power supply voltage: 2.7V to 5.5V (3.0V typ) • Low power supply consumption: 30mW (3.0V, 520MHz operation) • Serial input 18-bit programmable divider consisting of: • • • –Binary 7-bit swallow counter (Divide ratio: 0 to 127) –Binary 11-bit programmable counter (Divide ratio: 16 to 2047) Serial input 15-bit programmable reference divider consisting of: –Binary 14-bit programmable reference counter (Divide ratio: 8 to 16383) –1-bit switch counter (SW) Sets divide ratio of prescaler 2 types of phase detector output –On-chip charge pump (Bipolar type) –Output for external charge pump Wide operating temperature: TA=–40_C to +85_C PLASTIC PACKAGE FPT-16P-M06 This device contains circuitry to protect the inputs against damage due to high static voltages or electric fields. However, it is advised that normal precautions be taken to avoid application of any voltage higher than maximum rated voltages to this high impedance circuit. Copyright ©1994 by FUJITSU LIMIED 1 MB1504 MB1504H MB1504L PIN ASSIGNMENT OSCIN OSCOUT VP VCC DO GND LD fin 1 2 3 4 ( TOP VIEW ) 5 6 7 8 16 15 14 13 12 11 10 9 ØR ØP fP fr FC LE Data Clock ABSOLUTE MAXIMUM RATINGS (see NOTE) Rating Power Supply Voltage Output Voltage Open-drain Output Output Current Storage Temperature NOTE: Symbol VCC VPH VP,VPL VOUT VOOPH VOOP,VOOPL IOUT TSTG Condition — MB1504H MB1504/1504L — MB1504H MB1504/1504L — — Value –0.5 to +7.0 VCC to 12.0 VCC to 10.0 –0.5 to VCC +0.5 –0.5 to 11.0 –0.5 to 9.0 Unit V V V V mA °C +10 –55 to +125 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. 2 MB1504 MB1504H MB1504L MB1504/MB1504H/MB1504L BLOCK DIAGRAM VCC 4 16-Bit Shift Register 16-Bit Shift Register GND 6 15-Bit Latch 13 fr LE 11 15-Bit Latch 12 FC 7 Programmable Reference Divider OSCIN 1 Crystal Oscillator Circuit Binary 14-Bit Reference Counter 1-bit SW Phase Comparator 15 LD 16 ØR ØP OSCOUT 2 19-Bit Shift Register 19-Bit Shift Register 3 Charge Pump 5 Prescaler Circuit 18-Bit Latch 7-Bit Latch 11-Bit Latch 14 fP DO VP fIN 8 Programmable Divider Data 10 Control 1-Bit Latch Binary 7-Bit Swallow Counter Binary 11-Bit Programmable Counter Clock 9 Control Circuit 3 MB1504 MB1504H MB1504L PIN DESCRIPTIONS Pin No. 1 2 Pin Name OSCIN OSCOUT I/O I O Descriptions Oscillator input Oscillator output A crystal is placed between OSCIN and OSCOUT. Power supply input for charge pump Power supply voltage input Charge pump output The phase characteristics can be inversed depending upon the FC input. Ground Phase comparator output This pin outputs high when the phase is locked. While the phase difference of fr and fp exists, the output level goes low. Prescaler input The connection with an external VCO should be an AC connection. Clock input for 19-bit shift register and 16-bit shift register Each rising edge of the clock shifts one bit of data into the shift registers. Serial data of binary code input The last bit of the data is a control bit. The last data bit specifies which latch is activated. When the last bit is high level and LE is high-level, data is transferred to the 15-bit latch. When the last bit is low level and LE is high level, data is transferred to the 18-bit latch. Load enable input (with internal pull up resistor) When LE is high level (or open), data stored in the shift register is transferred to the latch depending on the control data. Phase selecting input of phase comparator (with internal pull up resistor) When FC is low level, the charge pump and phase detector characteristics can be inversed. Monitor pin of phase comparator input It is the same as the programmable reference divider output. Monitor pin of phase comparator input It is the same as the programmable divider output. Outputs for external charge pump The phase characteristics can be inversed depending on the FC input. The ØP pin is an N-channel open-drain output. 3 4 5 6 VP VCC DO GND — — O — 7 LD O 8 fIN I 9 Clock I 10 Data I 11 LE I 12 FC O 13 fr O 14 15 16 fP ØP ØR O O O 4 MB1504 MB1504H MB1504L FUNCTIONAL DESCRIPTIONS SERIAL DATA INPUT Serial data input is input using the Data pin, Clock pin and LE pin. The 15-bit programmable reference divider and 18-bit programmable divider are controlled, respectively. On rising edge of the clock, one bit of the data shifts into the internal shift registers. When load enable (LE) is high level (or open), data stored in the shift registers is transferred to the 15-bit latch or 18-bit latch depending upon the control bit level. Control data “H” : Data is transferred into the 15-bit latch. Control data “L” : Data is transferred into the 18-bit latch. PROGRAMMABLE REFERENCE DIVIDER The programmable reference divider consists of a 16-bit shift register, 15-bit latch and 14-bit reference counter. Serial 16-bit data format is shown below. Data input Last data input Control bit LSB 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 First data input C SW Divide ratio of programmable reference counter setting bits 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 • 16383 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 Divide ratio less than 8 is prohibited Divide ratio R: 8 to 16383 SW: Divide ratio of prescaler setting bit SW=“H”: 32 SW=“L” : 64 S1 to S14: Divide ratio of programmable reference counter setting bits (8 to 16383) C: Control bit (control bit is set to high) 5 MB1504 MB1504H MB1504L FUNCTIONAL DESCRIPTIONS PROGRAMMABLE DIVIDER The programmable divider consists of a 19-bit shift register, 18-bit latch, 7-bit swallow counter and 11-bit programmable counter. Serial 19-bit data format is shown below. Data input Last data input Control bit LSB 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 S 15 First data input MSB S 16 S 17 S 18 C Divide ratio of swallow counter setting bits Divide ratio of programmable counter setting bits 7-BIT SWALLOW COUNTER DIVIDE RATIO Divide ratio A 0 1 S 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 N 16 17 S 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 S 8 0 1 • 63 • 0 • 1 • 1 • 1 • 1 • 1 • 1 • 2047 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 • 1 Divide ratio A : 0 to 63 Divide ratio less than 16 is prohibited Divide ratio N : 16 to 2047 S8 to S18 : Divide ratio of programmable counter setting bits (16 to 2047) S1 to S7 : Divide ratio of swallow counter setting bits (0 to 127) C: Control bit (control bit is set to low) Data is input from the MSB. 6 MB1504 MB1504H MB1504L SERIAL DATA INPUT TIMING Data S18=MSB *(SW) S17 (S14) S10 S9 S1=LSB (S1) C: Control bit (C: Control bit) (S8) (S7) Clock LE t1 t1 – t5 ≥ 1µs On the rising edge of the clock, one bit of the data shifts into the shift registers. Data in ( ) is used for setting the divide ratio of the programmable reference divider. t2 t3 t4 t5 PHASE CHARACTERISTICS VCO CHARACTERISTICS The FC pin (pin 12) is provided to inverse the phase comparator characteristics. The characteristics of the internal charge pump output (DO), and phase detector outputs (ØR, ØP) can be inversed depending upon the FC input data. Outputs are shown below. FC=H (or open) DO fr>fp fr