DS04-21215-3E
FUJITSU SEMICONDUCTOR
DATA SHEET
1
ASSP
IF Band
PLL Frequency Synthesizer
MB15C101
s
DESCRIPTION
The Fujitsu MB15C101 is an exclusive Intermediate Frequency (IF) band Phase Locked Loop (PLL) frequency
synthesizer with pulse swallow operation. The reference divider and comparison divider have fixed divide ratios, so
that it is not required to set the divide ratios by a microcontroller externally.
It operates with a supply voltage of 3.0 V typ. and dissipates 1.0 mA typ.(270MHz) of current realized through the
use of Fujitsu's CMOS technology.
The MB15C101 is ideally suitable for PHS systems.
s
FEATURES
· Low power supply current: I
CC
= 1.0 mA typ. (V
CC
= 3 V, 270MHz)
· Pulse swallow function; Prescaler: 16/17
· Setting frequency (Selectable by Div input.)
fosc = 19.2 MHz, fIF = 233.15 MHz (Div = "H")
fosc = 19.2 MHz, fIF = 259.20 MHz (Div = "L")
· Lock detector
· Low power supply voltage: V
CC
= 2.4 V min.
· Wide operating temperature: Ta = 40 to +85
°
C
s
PACKAGE
8-pin plastic SSOP
(FPT-8P-M03)
16-pad plastic BCC
(LCC-16P-M06)
2
MB15C101
s
PIN ASSIGNMENT
s
PIN DESCRIPTIONS
Pin No.
Pin
name
I/O
Descriptions
SSOP-
8
BCC-
16
1,6,7,8,
9,14,
15,16
N.C
No connection
1
10
V
CC
Power supply voltage input (2.4 V to 3.6 V).
2
11
D
O
O
Charge pump output
3
12
GND
Ground
4
13
fin
I
Prescaler input. Connection should be with AC coupling.
5
2
Div
I
Divide ratio switching input. Two kinds of divide ratios are
selectable by Div input "H" or "L".
6
3
fout
O
Test purpose output. This pin is an open drain output so that
should be left open usually.
7
4
LD
O
Lock detector output.
LD = H ; Lock
LD = L ; Unlock
8
5
OSCin
I
Reference counter input. Connection should be with AC
coupling.
8
7
6
5
1
2
3
4
V
CC
D
O
GND
fin
OSC
IN
LD
fout
DIV
(TOP VIEW)
(FPT-8P-M03)
(TOP VIEW)
(LCC-16P-M06)
2
3
1
4
5
6
7
8
N.C.
N.C.
N.C.
N.C.
16
15
13
12
14
11
10
9
fin
GND
N.C.
D
O
V
CC
N.C.
DIV
fout
N.C.
LD
OSCin
N.C.
3
MB15C101
s
BLOCK DIAGRAM
V
CC
OSC
IN
fin
GND
DIV
fout
LD
Do
fr
fp
Oscillator
input
buffer
Reference divider
Reference
counter
(
R
)
Data
setting
circuit
Prescaler
16 / 17
(
P
)
Control circuit
Swallow
counter
(
A
)
Main
counter
(
N
)
Phase
comparator
charge
pump
Lock
detector
Output
selector
Comparison divider
4
MB15C101
s
ABSOLUTE MAXIMUM RATINGS
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
s
RECOMMENDED OPERATING CONDITIONS
Handling Precautions
· This device should be transported and stored in anti-static containers.
· 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 boards with devices.
Parameter
Symbol
Rating
Unit
Min.
Max.
Power supply voltage
V
CC
0.5
+4.0
V
Input voltage
V
I
0.5
V
CC
+0.5
V
Output voltage
V
OUT
0.5
V
CC
+0.5
V
Output current
I
OUT
0
+5
mA
Storage temperature
T
STG
55
+125
°
C
Parameter
Symbol
Value
Unit
Note
Min.
Typ.
Max.
Power supply voltage
V
CC
2.4
3.0
3.6
V
Input voltage
V
IN
GND
V
CC
V
Operating temperature
Ta
40
+85
°
C
5
MB15C101
s
ELECTRICAL CHARACTERISTICS
Recommended operating conditions unless otherwise noted.
Parameter
Symbol
Condition
Value
Unit
Min.
Typ.
Max.
Power supply current
I
CC
PLL is locked.(270MHz)
V
CC
= 3.0 V, Ta = +25
°
C
0.1
1.0
2.0
mA
Operating frequency
fin
fin
AC coupling by 1000 pF
capacitor
50
270
MHz
OSC
IN
fosc
AC coupling by 1000 pF
capacitor
3
26
MHz
Input sensitivity
fin
Pfin
AC coupling by 1000 pF
capacitor
10
+2
dBm
OSC
IN
Vosc
AC coupling by 1000 pF
capacitor
0.5
Vpp
Input voltage
Div
V
IH
V
CC
×
0.7
V
V
IL
V
CC
×
0.3
V
Input current
Div
I
IH
1.0
µ
A
I
IL
1.0
µ
A
Input current
OSC
IN
I
OSC
100
100
µ
A
Output voltage
Do
V
OH
V
CC
= 3.0 V, I
OH
=0.3mA
2.6
V
V
OL
V
CC
= 3.0 V, I
OL
= 0.3mA
0.4
V
Output current
Do
I
OH
V
CC
= 3.0 V, V
OH
= 2V,
Ta = +25
°
C
6.0
mA
I
OL
V
CC
= 3.0 V, V
OL
= 1V,
Ta = +25
°
C
6.0
mA
High impedance cut off
current
Do
I
OFF
0
V
DO
V
CC
3
nA
PDF 
ZIP