Sept. 1995
Edition 1.0a
DATA SHEET
MB1503
LOW-POWER PLL FREQUENCY SYNTHESIZER WITH
POWER SAVE FUNCTION (1.1GHz)
TheFujitsuMB1503isaserialinputphase-lockedloop(PLL)frequencysynthesizerwitha
pulse-swallow function. A stand-by mode is provided to limit power consumption during
intermittent operation.
The MB1503 is configured of a 1.1GHz dual-modulus prescaler with 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, programmabledivider(binary7-bitswallowcounterandbinary11-bitprogrammable
counter), analog switches, and an intermittent operation control circuit that selects the
operating or stand-by mode depending on the power-save control input state (PS).
The MB1503 operates from a single +5 V supply. Fujitsu’s advanced technology achieves
an Icc of 8mA, typical. The stand-by mode current consumption is just 100µA.
Features
•
•
High operating frequency
Pulse-swallow function
: fIN = 1.1GHz (PIN = –10dBm)
: High-speed dual-modulus prescaler with 128/129
divide ratio
•
•
•
Low supply current
Power-saving stand-by mode : 100µA
Serial input, 18-bit programmable divider consisting of:
: ICC = 8mA typ. at 5V
PLASTIC PACKAGE
(FPT-16P-M06)
–
–
•
–
–
•
Binary 7-bit swallow counter
: 0 to 127
Binary 11-bit programmable counter: 16 to 2,047
Serial input 15-bit programmable reference divider consisting of:
Binary 15-bit programmable reference counter: 8 to 16,383
1-bit switch counter sets prescaler divide ratio
On-chip analog switch for fast lock-up
•
On-chip charge pump
•
Wide operating temperature range: –40 to +85°C
•
Plastic 16–pin dual inline package (Suffix : –P)
Plastic 16–pin small outline package (Suffix : –PF)
ABSOLUTE MAXIMUM RATINGS (See NOTE)
Ratings
Supply Voltage
Symbol
VCC
Value
Unit
V
–0.5 to +7.0
CC ≤ VP ≤ 10.0
VP
V
V
PLASTIC PACKAGE
(DIP-16P-M04)
Output Voltage
VOUT
IOUT
Tstg
–0.5 to VCC +0.5
±10
V
Output Current
mA
°C
Storage Temperature
–55 to +125
NOTE: 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.
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 FUJITSULIMITED
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