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PDF MB15A03 Data sheet ( Hoja de datos )
| Número de pieza | MB15A03 | |
| Descripción | Bicmos 1.1 GHZ PLL Frequency Synthesizer | |
| Fabricantes | Fujitsu Microelectronics | |
| Logotipo |  |
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DS04-21329-2E
DATA SHEET
ASSP for DTS
BiCMOS 1.1 GHz PLL Frequency Synthesizer
MB15A03
s DESCRIPTION
The MB15A03 is a Phase Locked Loop (PLL) frequency synthesizer LSI operating at up to 1.1 GHz. It incorporates
a dual-modulus prescaler allowing either a 64/65 or a 128/129 frequency division to be selected.
The MB15A03 has a built-in power save function, achieving low power consumption.
The MB15A03 design is ideal for analog mobile telecommunications equipment.
s FEATURES
• Operation at high speed: Up to 1.1 GHz
• Operation at low voltage: 2.7 to 3.6 V
• Low current consumption: Typical 6.5 mA (VCC = 3 V)
• Built-in power saving function: Typical 100 µA (VCC = 3V)
• Dual-modulus prescaler divide ratio: 64/65 or 128/129
• Reference divider
Binary 14-bit reference counter (divide ratio of 6 to 16,383)
• Comparative dividers
Binary 7-bit swallow counter (divide ratio of 0 to 127)
Binary 11-bit programmable counter (divide ratio of 5 to 2,047)
• Internal phase comparator with phase conversion features
• Internal digital lock detection circuit for PLL lock/unlock detection
• Operating temperature range: –40 to +85°C
s PACKAGES
16-pin, plastic SSOP
www.DatawShweewt4.UD.caomtaSheet4U.com(FPT-16P-M05)
20-pin, plastic SSOP
(FPT-20P-M03)
1
1 page  
MB15A03
s ABSOLUTE MAXIMUM RATINGS
Parameter
Power supply voltage
Output voltage
Output current
Open-drain voltage
Storage temperature
Symbol
VCC
VP
VO
IO
VOOP
Tstg
Min.
–0.5
VCC
–0.5
–10
–0.5
–55
Rating
Max.
5.0
5.5
VCC + 0.5
10
6.0
+125
Unit
V
V
V
mA
V
°C
Note: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional
operation should be restricted to the conditions 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
Power supply voltage
Input voltage
Operating temperature
Symbol
VCC
VP
VIN
Ta
Min.
2.7
VCC
GND
–40
Value
Typ.
3.0
—
—
—
Max.
3.6
5.0
VCC
+85
Unit
V
V
V
°C
HANDLING PRECAUTIONS
Although the MB15A03 contains an antistatic element to prevent electrostatic breakdown and the circuitry has
been improved in electrostatic protection, observe the following precautions when handling the device:
• Store or carry this device in a conductive case.
• As 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 boads with devices.
5
5 Page 
MB15A03
s PHASE COMPARATOR OUTPUT WAVEFORMS
Note: • A phase error is detected between −2π and +2π. The phase comparator conversion gain is Vp/4π.
•The LD output becomes low when the phase difference is tWU or more. The LD output becomes
high when the phase difference is equal to or smaller than tWL and continues to be so for three
cycles or more.
•tWU and tWL depend on the OCSIN input frequency as follows:
tWU ≥ 8/fOSC [s] ..... When fOSC = 12.8 MHz, tWU ≥ 625 ns
tWL ≤ 16/fOSC [s] ..... When fOSC = 12.8 MHz, tWL ≤ 1250 ns
11
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet MB15A03.PDF ] | |
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