FUJITSU MB1502

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.
Plastic Package
DIP-16P-M04
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
Plastic Package
FPT-16P–M06
• 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
Pin Assignment
• Wide operating temperature: –40C to +85C
• 16-pin Plastic DIP Package (Suffix: —P)
16-pin Plastic Flat Package (Suffix: —PF)
ABSOLUTE MAXIMUM RATINGS (See NOTE)
RatIng
OSCIN
1
OSCOUT
2
16 ∅R
15 ∅P
VP
3
14
13 BiSW
12 FC
Value
Unit
VCC
4
VCC
–0.5 to +7.0
V
5
VP
VCC to 10.0
V
DO
GND
6
11 LE
7
10 Data
8
Power Supply Voltage
Output Voltage
VOUT
–0.5 to VCC +0.5
V
LD
Open-drain Voltage
VOOP
–0.5 to 0.8
V
fIN
Output Current
IOUT
± 10
mA
Storage Temperature
TSTG
–55 to +125
C
NOTE:
fOUT
Symbol
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.
 (TOP VIEW)
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.
MB1502
MB1502 Block Diagram
VCC
16-Bit Shift Register
4
16-Bit Shift Register
GND
6
15-Bit Latch
LE
15-Bit Latch
11
Programmable
Reference Divider
OSCIN
1
OSCOUT
2
Crystal
Oscillator
Circuit
1-bit
Binary 14-Bit
Reference Counter SW
Phase
Comparator
13
BiSW
12
FC
7
LD
16
∅R
15
∅P
3
VP
5
DO
14
fOUT
19-Bit Shift Register
19-Bit Shift Register
fin
8
Prescaler
Circuit
18-Bit Latch
7-Bit Latch
11-Bit Latch
Programmable Divider
Data
10
Clock
9
Control
1-Bit Latch
Binary 7-Bit
Swallow Counter
Binary 11-Bit
Programmable Counter
Control Circuit
2
Charge
Pump
MB1502
PIN DESCRIPTION
Pin
No.
Pin
Name
I/O
1
2
OSCIN
OSCOUT
I
O
Oscillator input.
Oscillator output.
A crystal is placed between OSCIN and OSCOUT.
3
VP
—
Power supply input for charge pump and analog switch.
4
VCC
—
Power supply voltage input.
5
DO
O
Charge pump output.
The characteristics of charge pump is reversed depending upon FC input.
6
GND
—
Ground
7
LD
O
Phase comparator output.
Normally this pin outputs high level. While the phase difference of fr, and fp exists, this
pin outputs low level.
8
fIN
l
Prescaler input.
The connection with an external VCO should be AC connection.
9
Clock
I
Clock input for 19-bit shift register and 16-bit shift register.
On rising edge of the clock shifts one bit of data into the shift registers.
10
Data
l
Binary serial data input.
The last bit of the data is a control bit which specified destination of shift registers.
When this bit is high level and LE is high level, the data stored in shift register is transferred to 15-bit latch.
When this bit is low level and LE is high level, the data is transferred to 18-bit latch.
Description
11
LE
I
Load enable input (with internal pull up resistor).
When LE is high or open, the data stored in shift register is transferred into latch depending upon the control
bit. At the time, internal charge pump output to be connected to BISW pin because internal analog switch
becomes ON state.
12
FC
l
Phase select input of phase comparator (with internal pull up resistor).
When FC is low level, the characteristics of charge pump, phase comparator is reversed.
FC input signal is also used to control fOUT pin (test pin) output level for fr or fp.
13
BISW
O
Analog switch output.
Usually BISW pin is set high-impedance state. When internal analog switch is ON (LE pin is high level), this
pin outputs internal charge pump state.
14
fOUT
O
Monitor pin of phase comparator input.
fOUT pin outputs either programmable reference divider output (fr) or programmable divider output (fp)
depending upon FC pin input level.
15
16
∅P
∅R
O
O
Outputs for external charge pump.
The characteristics are reversed according to FC input.
∅P pin is N-channel open drain output.
3
MB1502
FUNCTIONAL DESCRIPTIONS
SERIAL DATA INPUT
Serial data input is achieved by three inputs, such as Data pin, Clock pin and LE pin. Serial data input controls 15-bit programmable
reference divider and 18-bit programmable divider, respectively.
Binary serial data is input to Data pin.
On rising edge of clock shifts one bit of serial data into the internal shift registers and when load enable pin is high level or open, stored
data is transferred into latch depending upon the control bit.
Control data “H” data is transferred into 15-bit latch.
Control data “L” data is transferred into 18-bit latch.
PROGRAMMABLE REFERENCE DIVIDER
Programmable reference divider consists of 16-bit shift register, 15-bit latch and 14-bit reference counter. Serial 16-bit data format is
shown below.
Control bit
LSB
C
Divide ratio of prescaler setting bit
MSB
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
W
Divide ratio of programmable reference counter setting bit
14-BIT PROGRAMMABLE REFERENCE COUNTER DIVIDE RATIO
Divide
Ratio
R
S
S
S
S
S
S
S
S
S
S
S
S
S
S
14
13
12
11
10
9
8
7
6
5
4
3
2
1
8
0
0
0
0
0
0
0
0
0
0
1
0
0
0
9
0
0
0
0
0
0
0
0
0
0
1
0
0
1
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
16383
1
1
1
1
1
1
1
1
1
1
1
1
1
1
NOTES: Divide ratio less than 8 is prohibited.
Divide ratio: 8 to 16383
SW: This bit selects divide ratio of prescaler.
SW=H : 64
SW=L :128
S1 to S14: These bits select divide ratio of programmable reference divider.
C: Control bit (sets as high level).
Data is input from MSB side.
PROGRAMMABLE DIVIDER
Programmable divider consists of 19-bit shift register, 18-bit latch, 7-bit swallow counter and 11-bit programmable counter.
Serial 19-bit data format is shown on following page.
4
MB1502
Control bit
LSB
C
MSB
S
S
S
S
S
S
S
S
S
1
2
3
4
5
6
7
8
9
S
S
S
S
S
S
S
S
S
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
S
S
S
S
S
S
S
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
1
•
•
•
•
•
•
•
•
127
1
1
1
1
1
1
1
NOTE:
Divide ratio: 0 to 127
11-BIT PROGRAMMABLE COUNTER DIVIDE RATIO
S
S
S
S
S
S
S
S
S
S
S
1
8
1
7
1
6
1
5
1
4
1
3
1
2
1
1
1
0
9
8
16
0
0
0
0
0
0
1
0
0
0
1
17
0
0
0
0
0
0
1
0
0
0
1
•
•
•
•
•
•
•
•
•
•
•
•
2047
1
1
1
1
1
1
1
1
1
1
1
Divide
Ratio
N
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)
5
MB1502
Serial Data Input Timing
Data
S18=MSB
*(SW)
S17
S10
S9
S1=LSB
(C: Control bit)
(S14)
(S8)
(S7)
(S1)
(C: Control bit)
Clock
LE
t2
t1
t3
t5
t1 – t5 ≥ 1µs
t4
NOTES: Parenthesis data is used for setting divide ratio of programmable reference divider.
On rising edge of clock shifts one bit of data in the shift register.
PHASE CHARACTERISTICS
FC pin is provided to change phase characteristics of phase comparator. Characteristics of internal charge pump output level (Do),
phase comparator output level (∅R, ∅P) are reversed depending upon FC pin input level. Also, monitor pin (fOUT) output level of phase
comparator is controlled by FC pin input level. The relation between outputs (DO, ∅R, ∅P) and FC input level are shown below.
FC=H or open
DO
∅R
FC=L
∅P
fOU
T
∅R
∅P
fOU
T
fr > fp
H
L
L
(fr)
L
H
Z
(fp)
fr < fp
L
H
Z
(fr)
H
L
L
(fp)
fr = fp
Z
L
Z
(fr)
Z
L
Z
(fp)
Z = (High impedance)
VCO OUTPUT FREQUENCY
Note:
1
VCO CHARACTERISTICS
Depending upon VCO characteristics,
FC pin should be set accordingly:
— When VCO characteristics are like1,
FC should be set High or open circuit;
— When VCO characteristics are like 2,
FC should be set Low.
2
VCO INPUT VOLTAGE
6
DO
MB1502
fr
fp
LD
H
Z
L
Do
NOTES: Phase difference detection range: –2π to +2π
Spike appearance depends on charge pump characteristics. Also, the spike is output in order to diminish dead band.
When fr > fp or fr < fp, spike might not appear depending upon charge pump characteristics.
ANALOG SWITCH
ON/OFF of analog switch is controlled by LE input signal. When the analog switch is ON, internal charge pump output (DO) to be
connected to BlSW pin. When the analog switch is OFF, BlSW pin is set to high-impedance state.
LE=H (Changing the divide ratio of internal prescaler) : Analog switch=ON
LE=L (Normal operating mode): Analog switch=OFF
LPF time constant is decreased in order to insert a analog switch between LPF1 and LPF2 when channel of PLL is changing.
Thus, lock up time is decreased, that is, fast lock up time is achieved.
Do
CHARGE PUMP
LPF-1
VCO
LPF-2
BISW
ANALOG SW
(CONTROL SIGNAL)
RECOMMENDED OPERATING CONDITIONS
Parameter
Power Supply Voltage
Symbol
VCC
Value
Unit
Min
Typ
Max
4.5
5.0
5.5
V
VP
VP
VCC
8.0
V
Input Voltage
VI
GND
VCC
V
Operating Temperature
TA
–40
85
C
7
MB1502
ELECTRICAL CHARACTERISTICS
(Vcc=4.5 to 5.5V, TA=–40 to +85oC, unless otherwise noted.)
Parameter
Condition
ICC
Note 1
fin
fin
Note2
OSCIN
fOSC
fin
Vfin
–10
OSCIN
VOSC
0.5
Except fin
and OSCIN
VIH
VCCx0.7
Data
Clock
IIH
1.0
A
IIL
–1.0
A
OSCIN
IOSC
±50
A
–60
A
Power Supply Current
Operating Frequency
Input Sensitivity
High-level Input Voltage
Low-level Input Voltage
High-level Input Current
Low-level Input Current
Input Current
High-level Output Current
Low-level Output Current
N-channel Open Drain Cutoff
Current
Output Current
Analog Switch On Resistor
NOTE:
8
Value
Symbol
Min
Unit
Typ
Max
8.0
12.0
mA
1100
MHz
20
MHz
6
dBm
10
12
VPP
V
VIL
VCCx0.3
V
LE, FC
ILE
Except DO
and
OSCOUT
VOH
DO, ∅P
IOFF
Except DO
and
OSCOUT
IOH
–1.0
mA
IOL
1.0
mA
VCC = 5 V
4.4
V
VOL
VP = VCC to 8V
VOOP= GND to 8V
RON
1: f in = 1.1GHz, OSClN=12MHz, Vcc=5V. Inputs are grounded and outputs are open.
2: AC coupling. Minimum operating frequency is measured when a capacitor 1000pF is connected.
25
0.4
V
1.1
µA
MB1502
TYPICAL CHARACTERISTICS CURVES
INPUT SENSITIVITY CHARACTERISTICS
9
MB1502
INPUT IMPEDANCE CHARACTERISTICS
10
MB1502
TYPICAL APPLICATION EXAMPLE
VPX(6V)
OUTPUT
LPF
VCO
10kΩ
12kΩ
Charge Pump Selection
(Internal or external)
12kΩ
∅R
16
∅P
15
FROM
CONTROLLER
10kΩ
fr
fp
14
13
LE
FC
12
Data
Clock
11
10
9
6
7
8
47kΩ
47kΩ
MB1502
1
2
OSCIN
3
OSCOUT
4
VP
5
VCC
X’tal
GND
LD
fin
1000pF
6V
C1
DO
VCC (5V)
100kΩ
5V
C2
0.1µF
33kΩ
0.01µF
LOCK DET
10kΩ
Vpx : 8V max
C1, C2 : Depends on crystal oscillator
LE, FC : With internal pull up resistor
∅P
: Open drain output
Vp,
11
MB1502
PACKAGE DIMENSIONS
16–Lead Plastic Dual In–Line Package
(Case No.: DIP–16P–M04)
15°MAX
.770 +.008 (19.55 +0.20 )
–.012
–0.30
INDEX-1
.244±.010
(6.20±0.25)
.300(7.62)
TYP
INDEX-2
.039 +.012
–0
(0.99 +0.30 )
–0
.060 +.012
–0
(1.52 +0.30 )
–0
.010±.002
(0.25±0.05)
.172(4.36)MAX
.118(3.00)MIN
.100(2.54)
TYP
.050(1.27)
MAX
1991 FUJITSU LIMITED D16033S-2C
12
.020(0.51)MIN
.018±.003
(0.46±0.08)
Dimensions in
inches (millimeters)
MB1502
16–Lead Plastic Flat Package
(Case No.: FPT–16P–M06)
.089(2.25)MAX
(MOUNTING HEIGHT)
.400 +.010 (10.15+0.25 )
–.008
–0.20
.002(0.05)MIN
(STAND OFF HEIGHT)
.307±.016
(7.80±0.40)
INDEX
“B”
.268 +.016 (6.80 +0.40 )
–.008
–0.20
.209±.012
(5.30±0.30)
.020±.008
(0.50±0.20)
.050(1.27)
TYP
.018±.004
(0.45±0.10)
“A”
∅.005(0.13)
.006 +.002 (0.15 +0.05 )
–.001
–0.02
M
Details of “A” part
.016(0.40)
.004(0.10)
.350(8.89) REF
1991 FUJITSU LIMITED F16015S-2C
.008(0.20)
.007(0.18)
MAX
.027(0.68)
MAX
Details of “B” part
.006(0.15)
.008(0.20)
.007(0.18)
MAX
.027(0.68)
MAX
Dimensions in
inches (millimeters)
13
MB1502
All Rights Reserved.
Circuit diagrams utilizing Fujitsu products are included as a means of illustrating
typical semiconductor applications. Complete Information sufficient for construction
purposes is not necessarily given.
The information contained in this document has been carefully checked and is
believed to be reliable. However, Fujitsu assumes no responsibility for inaccuracies.
The information contained in this document does not convey any license under the
copyrights, patent rights or trademarks claimed and owned by Fujitsu.
Fujitsu reserves the right to change products or specifications without notice.
No part of this publication may be copied or reproduced in any form or by any means,
or transferred to any third party without prior written consent of Fujitsu.
14
MB1502
FUJITSU LIMITED
For further information, please contact:
Japan
FUJITSU LIMITED
Semiconductor Marketing
Furukawa Sogo Bldg.
6-1,Marunouchi 2-chome
Chiyoda-ku, Tokyo 100
Japan
Tel: (03)3216-3211
Telex: 781-2224361
FAX: (03)3216-9771
North and South America
FUJITSU MICROELECTRONICS, INC.
Semiconductor Division
3545 North First Street
San Jose, CA 95134-1804 USA
Tel: (408)922-9000
FAX: (408)432-9044
Europe
FUJITSU MIKROELEKTRONIK GmbH
Arabella Centre 9.OG
Lyoner Strasse 44-48
D-6000 Frankfurt 71
F.R. Germany
Tel: (069) 66320
Telex: 411963
FAX: (069) 6632122
Asia
FUJITSU MICROELECTRONICS ASIA PTE LIMITED
51 Bras Basah Road
Plaza by the Park
#06-04/07
Singapore 0718
Tel: 336-1600
Telex: 55373
FAX: 336-1609

1990 FUJITSU LIMITED
Printed in Japan
JV0123-90YA3
15