FUJITSU MB509

Sept. 1995
Edition 3.0a
DATA SHEET
MB509
TWO MODULUS PRESCALER WITH STAND-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 11.5mA at 5.0V. under normal operation, with the
current reduced to180µA in standby mode. By using MB509 with the MB87076,
intermittent operating mode can be achieved.
PLASTIC PACKAGE
DIP-08P-M01
FEATURES
High Frequency Operation:
fmax = 1.1GHz max. (PIN = –4dBm min.)
Pulse Swallow Function:
64/65, 128/129
Power Supply Consumption:
58mW typ.
Stand-by Current:
180µA typ.
Stable Output Amplitude:
VO = 1.6Vp–p typ.
PLASTIC PACKAGE
FPT-08P-M01
Complete PLL synthesizer circuit with the Fujitsu MB87076, PLL frequency
synthesizer IC
Plastic 8-pin Dual-In-Line Package (Suffix: –P)
Plastic 8-pin Mini Flat Package (Suffix: –PF)
PIN ASSIGNMENT
Built-in a Termination Resistor
Stable output amplitude is obtained up to output load capacitance of 8pF
ABSOLUTE MAXIMUM RATINGS (See Note)
Rating
Symbol
Value
Unit
IN
1
VCC
2
8
IN
7
PS
TOP VIEW
Power Supply Voltage
VCC
–0.5 to +7.0
V
Input Voltage
VIN
–0.5 to VCC
V
Output Current
IO
10
mA
TSTG
–55 to +125
°C
Storage Temperature
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.
Copyright 1990 by FUJITSU LIMITED and FUJITSU MICROELECTRONICS, INC.
SW
3
6
MC
OUT
4
5
GND
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.
MB509
PS
D Q
D Q
D Q
C
C
C M
Input Buffer
IN
IN
SW
D Q
D Q
D Q
D Q
C Q
C Q
C Q
C Q
D Q
SW
C Q
Output
Buffer
OUT
MC
PS
SW
MC
Divide Ratio
H
H
H
1/64
H
H
L
1/65
H
L
H
1/128
H
L
L
1/129
L
—
—
Stand-by mode
Note:
SW:
MC:
PS:
H =VCC, L = open
H = 3.0V to VCC,
L = GND to 0.8V
H = 2.0V to VCC,
L = GND to 0.4V
Figure 1. MB509 Block Diagram
PIN DESCRIPTION
2
Pin Number
Symbol
Descriptions
1
IN
2
VCC
Power Supply, +5V
3
SW
Divide Ratio Control Input (See Divide Ratio Table)
4
OUT
Output
5
GND
Ground
6
MC
Modulus Control Input (See Divide Ratio Table)
7
PS
Stand–by Control Input (See Divide Ratio Table)
8
IN
Complementary Input
Input
MB509
RECOMMENDED OPERATING CONDITIONS
Value
Parameter
Symbol
Unit
Min.
Typ.
Max.
Power Supply Voltage
VCC
4.5
5.0
5.5
V
Operating Temperature
TA
–40
—
+85
°C
Load Capacitance
CL
—
—
8
pF
ELECTRICAL CHARACTERISTICS
(Recommended Operating Conditions unless otherwise noted)
Value
Parameter
Power Supply Curent
Symbol
Condition
ICC
Unit
Min.
Typ.
Max.
—
11.6
—
mA
IPS
Stand-by mode
—
180
—
µA
Output Amplitude
VO
Built-in a Termination
Resistor.
Load Capacitance=8pF
1.0
1.6
—
Vp–p
Input Frequency
fIN
With input coupling
capacitor 1000pF
10
—
1100
MHz
Input Signal Amplitude
PIN
—
–4
—
5.5
dBm
High Level Input Voltage for MC
VIH
—
3.0
—
—
V
Low Level Input Voltage for MC
VIL
—
—
—
0.8
V
High Level Input Voltage for SW
VIHS*
VCC –0.1
VCC
VCC +0.1
V
Low Level Input Voltage for SW
VILS
High Level Input Voltage for PS
VIH
—
2.0
—
—
V
Low Level Input Voltage for PS
VIL
—
—
—
0.4
V
High Level Input Current for MC
IIH
VIH = 3.0V
—
—
0.4
mA
Low Level Input Current for MC
IIL
VIL = 0.8V
–0.2
—
—
mA
tSET
—
—
16
26
ns
Modulus Set-up Time MC to Output
Note:
Open
V
*Design Guarantee
3
MB509
VCC = +5.0V + 10%
C3
Sampling scope input point
for input waveform
VCC
Sampling scope prober point
for output waveform
SW
C1
OUT
IN
P.G.
50Ω
IN
CL
C2
MC
GND
MC Input
C1 : 1000pF
C2 : 1000pF
C3 : 0.1µF
CL : 8pF (including scope and jig capacitance)
PS pin is open.
Figure 2. Test Circuit
TIMING CHART (2 MODULUS)
Example: Divide ratio = 64/65
64
65
IN
32
32
32
33
OUT
32 32 32 32
32 32 33 32 33 32 32
MC
tSET
tSET
Note: When divide ratio of 65 is selected, positive pulse is added by one to 33.
The typical set up time is 16ns from the MC signal input to the timing of change of prescaler divide ratio.
4
MB509
TYPICAL CHARACTERISTICS CURVES
VCC = 5.0V
Datasheet spec.
TA = –40°C
TA = 85°C
TA = 25°C
0
–10
–20
–30
1.4
1.2
1.0
1.6
INPUT FREQUENCY fIN (GHz)
Figure 3. Input Signal Amplitude vs. Input Frequency
PS pin
Input Signal
OUT pin
Output signal
(Prescaler
output)
Power On 5V/Div.
Power Off 1V/Div.
MINIMUM INPUT SIGNAL AMPLITUDE VIN (dBm)
10
50ns/Div.
Note:
About 50ns of set up time is required both power on/off.
Figure 4. Waveform of Stand-by Mode
5
MB509
Microcomputer
PS Signal
Data
LE Data Clock
16
15
14
13
12
11
10
9
6
7
8
MB87076
1
2
3
5
4
LPF
XTAL
VCO
VDD
+
–
Prescaler
MB509
OUTPUT
Figure 5. Typical Application Example
6
MB509
PACKAGE DIMENSIONS
8-LEAD PLASTIC DUAL IN-LINE PACKAGE
(CASE No: DIP-08P-M01)
.016
.370 – .012
0.40
9.40 – 0.30
15° MAX
INDEX
.244+.010
(6.20+0.25)
.012
.039 – 0
0.30
0.99 – 0
.012
.060 – 0
.300(7.62)
TYP
.010+.002
(0.25+0.05)
0.30
1.52 – 0
.014
.035 – .012
0.35
0.89 – 0.30
.172(4.36) MAX
.020(0.51)
MIN
.100(2.54)
.018+.003
TYP
(0.46+0.08)
 1988 FUJITSU LIMITED D08006S-2C
.118(3.00) MIN
DImensions in
inches (millimeters)
7
MB509
PACKAGE DIMENSIONS (Continued)
8-LEAD PLASTIC FLAT PACKAGE
(CASE No: FPT-08P-M01)
.010
.250 – .008
0.25
6.35 – 0.20
.089(2.25) MAX
(SEATED HEIGHT)
.002(0.05) MIN
(STAND OFF)
.307+.016
(7.80+0.40)
INDEX
.016
.268 – .008
.209+.012
(5.30+0.30)
0.40
6.80 – 0.20
.020+.008
(0.50+0.20)
.050(1.27)
.018+.004
(0.45+0.10)
TYP
∅ .005(0.13)
M
.002
.006 – .001
0.05
0.15 – 0.02
.150(3.81)
Details of “A” part
REF
“A”
.004(0.10)
 1988 FUJITSU LIMITED F08002S-3C
8
.008(0.20)
.020(0.50)
.007(0.18)
MAX
.027(0.68)
MAX
DImensions in
inches (millimeters)
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Japan
Fujitsu Limited
Asia
Tel: +81 44 754 3753
Fax: +81 44 754 3332
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Kanagawa 211-88
Japan
Tel:
Fax
:
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http://www.fujitsu.co.jp/
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USA
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Fax: +1 408 922 9179
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:
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