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PDF MB1504 Data sheet ( Hoja de datos )
| Número de pieza | MB1504 | |
| Descripción | ASSP SERIAL INPUT PLL FREQUENCY SYNTHESIZER | |
| Fabricantes | Fujitsu | |
| Logotipo |  |
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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 VOOP Voltage Lock up Time
MB1504
MB1504H
MB1504L
8V max
10V max
8V max
8.5V max
10.0V max
8.5V max
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. How-
ever, it is advised that normal precautions be taken to avoid
application of any voltage higher than maximum rated volt-
ages to this high impedance circuit.
©Copyright 1994 by FUJITSU LIMIED
1
1 page  
FUNCTIONAL DESCRIPTIONS
SERIAL DATA INPUT
MB1504
MB1504H
MB1504L
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.
Last data input
Control bit
LSB
Data input
Divide ratio of prescaler setting bit
MSB
First data input
SSSSSSSSSSSSSS
C SW
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Divide ratio of programmable reference counter setting bits
14-BIT PROGRAMMABLE REFERENCE COUNTER DIVIDE RATIO
Divide S S S S S S S S S S S S S S
ratio
R 14 13 12 11 10 9 8 7 6 5 4 3 2 1
8 0 00 0 0 0 0 0 0 0 1 0 0 0
9 00000000001001
• ••••••••••••••
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)
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5 Page 
DO PIN OUTPUT WAVEFORM AT LOCK CONDITION
Output Waveform
1V/div
100ns/div
MB1504
MB1504H
MB1504L
MB1504
MB1504H
MB1504L
11
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet MB1504.PDF ] | |
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