DAT
A SHEET
Sept. 1995
Edition 3.0a
Copyright
1990 by FUJITSU LIMITED and FUJITSU MICROELECTRONICS, INC.
MB509
TWO
MODULUS PRESCALER WITH ST
AND-BY MODE
TWO
MODULUS PRESCALER WITH STAND-BY MODE
The Fujitsu MB509 is a low power, two modulus prescaler equipped with the
standby mode. The MB509 is used in conjunction with a frequency synthesizer
to form a Phase Locked Loop (PLL) and will divide the input frequency by the
modulus
of 65/65 or 128/129.
Power
consumption is typically 1
1.5mA at 5.0V
. under normal
operation, with the
current
reduced to180
μ
A in standby
mode. By using MB509 with the MB87076,
intermittent
operating mode can be achieved.
FEATURES
High Frequency Operation:
fmax = 1.1GHz max. (P
IN
= –4dBm min.)
Pulse Swallow Function:
64/65, 128/129
Power Supply Consumption:
58mW typ.
Stand-by Current:
180
μ
A typ.
Stable Output Amplitude:
V
O
= 1.6V
p–p
typ.
Complete PLL synthesizer circuit with the Fujitsu MB87076, PLL frequency
synthesizer IC
Plastic 8-pin Dual-In-Line Package (Suf
fix: –P)
Plastic 8-pin Mini Flat Package (Suf
fix: –PF)
Built-in a T
ermination Resistor
Stable output amplitude is obtained up to output load capacitance of 8pF
ABSOLUTE
MAXIMUM RA
TINGS (See Note)
Rating
Symbol
Value
Unit
Power
Supply V
oltage
V
CC
–0.5 to +7.0
V
Input V
oltage
V
IN
–0.5 to V
CC
V
Output Current
I
O
10
mA
Storage T
emperature
T
STG
–55 to +125
°
C
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 af
fect device reliability
.
PLASTIC
P
ACKAGE
FPT-08P-M01
PIN ASSIGNMENT
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.
PLASTIC
P
ACKAGE
DIP-08P-M01
IN
V
CC
SW
OUT
IN
PS
GND
MC
1
2
3
4
5
6
7
TOP VIEW
8