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PDF MB1502 Data sheet ( Hoja de datos )
| Número de pieza | MB1502 | |
| Descripción | SERIAL INPUT PLL FREQUENCY SYNTHESIZER | |
| Fabricantes | Fujitsu | |
| Logotipo |  |
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November 1990
Edition 5.0
DATA SHEET
MB1502
SERIAL INPUT PLL FREQUENCY SYNTHESIZER
LOW POWER SERIAL INPUT PLL SYNTHESIZER
WITH 1.1 GHz PRESCALER
The Fujitsu MB1502, utilizing BI-CMOS technology, is a single chip serial input PLL
synthesizer with pulse-swallow function. The MB1502 contains a 1.1GHz two
modulus prescaler that can select of either 64/65 or 128/129 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 conversion function, charge pump, crystal oscillator, 19-bit
shift register, 18-bit latch, programmable divider (binary 7-bit swallow counter and
binary 11-bit programmable counter) and analog switch to speed up lock up time.
It operates supply voltage of 5V typ. and achieves very low supply current of 8mA typ.
realized through the use of Fujitsu Advanced Process Technology.
FEATURES
• High operating frequency: fIN MAX=1.1GHz (VIN MIN=10dBm)
• Pulse swallow function: 64/65 or 128/129
• Low supply current: ICC=8mA 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
• 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
• 16-pin Plastic DIP Package (Suffix: —P)
16-pin Plastic Flat Package (Suffix: —PF)
ABSOLUTE MAXIMUM RATINGS (See NOTE)
RatIng
Symbol
Value
Unit
Power Supply Voltage
Output Voltage
Open-drain Voltage
Output Current
Storage Temperature
VCC
VP
VOUT
VOOP
IOUT
TSTG
–0.5 to +7.0
VCC to 10.0
–0.5 to VCC +0.5
–0.5 to 0.8
± 10
–55 to +125
V
V
V
V
mA
_C
NOTE:
Permanent device damage may occur if the above Absolute Maximum RatIngs are exceed-
ed.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.
Plastic Package
DIP-16P-M04
Plastic Package
FPT-16P–M06
Pin Assignment
OSCIN
OSCOUT
VP
VCC
DO
GND
LD
fIN
1 16 ∅R
2 15 ∅P
3 14 fOUT
4 13 BiSW
5 (TOP VIEW) 12 FC
6 11 LE
7 10 Data
8 9 Clock
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.
Coypright © 1990 by FUJITSU LIMITED
1 page  
Control bit
LSB
MSB
CSSSSSSSSSSSSSSSSSS
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
Divide ratio of swallow
counter setting bit
Divide ratio of programmable
counter setting bit
7-BIT SWALLOW COUNTER DIVIDE RATIO
Divide
Ratio
A
0
1
•
127
SSSSSSS
7654321
0000000
0000001
•••••••
1111111
NOTE: Divide ratio: 0 to 127
11-BIT PROGRAMMABLE COUNTER DIVIDE RATIO
Divide
Ratio
N
16
17
•
2047
SSSSSSSSSSS
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
9
8
00000010001
00000010001
•••••••••••
11111111111
NOTES: 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.
PULSE SWALLOW FUNCTION
fvco =
fVCO:
N:
A:
fOSC:
R:
P:
[(PxN)+A] x fosc ÷ R
Output frequency of external voltage controlled oscillator (VCO)
Preset divide ratio of binary 11-bit programmable counter (16 to 2047)
Preset divide ratio of binary 7-bit swallow counter (0≤A≤127, A<N)
Output frequency of the external reference frequency oscillator
Preset divide ratio of binary 14-bit programmable reference counter (8 to 16383)
Preset modulus of external dual modulus prescaler (64 or 128)
MB1502
5
5 Page 
TYPICAL APPLICATION EXAMPLE
VPX(6V)
10kΩ
12kΩ
12kΩ
10kΩ
LPF
Charge Pump Selection
(Internal or external)
MB1502
VCO
OUTPUT
FROM
CONTROLLER
∅R ∅P
fp
fr FC LE Data Clock
16 15 14 13 12 11 10
9
47kΩ 47kΩ
MB1502
1
OSCIN
2 34 5 67 8
OSCOUT VP
VCC DO GND LD fin
X’tal
6V 5V
C1 C2
0.1µF
1000pF
VCC (5V)
100kΩ
33kΩ
0.01µF
LOCK DET
10kΩ
Vp, Vpx : 8V max
C1, C2 : Depends on crystal oscillator
LE, FC : With internal pull up resistor
∅P : Open drain output
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet MB1502.PDF ] | |
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