MB15C03 Fujitsu, MB15C03 Datasheet - Page 3

• Manufacturer Part Number: MB15C03
• Description: Single Serial Input PLL Frequency Synthesizer On-Chip prescaler
• Manufacturer: Fujitsu

Pin no.
PIN DESCRIPTIONS
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
OSC
OSC
name
Clock
TEST
Data
V
Pin
V
PS
FC
LE
LD
D
fin
V
f
f
DD
SS
p
r
O
P
OUT
IN
I/O
—
—
—
O
O
O
O
O
I
I
I
I
I
I
I
I
System
1 V
1 V
1 V
1 V
1 V
1 V
3 V
3 V
1 V
1 V
1 V
1 V
1 V
1 V
1 V
—
Power supply voltage
Clock input for the shift register.
Data is shifted into the shift register on the rising edge of the clock.
Serial data input using binary code.
Load enable signal input
When LE is high, the data in the shift register is transferred to a latch,
according to the control bit in the serial data.
Prescaler input.
A bias circuit and amplifier are at input port. Connection with an external
VCO should be done by AC coupling.
Power saving mode control. This pin must be set at “L” at Power-ON.
PS = “H” ; Normal mode
PS = “L” ; Power saving mode
Lock detector signal output.
When a PLL is locking, LD outputs “H”.
When a PLL is not locking, LD outputs “L”.
Charge pump output.
Phase of the charge pump can be reversed by FC input. The D
may be inverted by FC input. The relationships between the programm-
able reference divider output(fr) and the programmable divider output(f
are shown below;
Power supply for the charge pump.
Programmable reference counter output (f
Programmable counter output (f
Phase comparator input select pin.
Test mode select pin. (Pull down resistor)
Setting this pin to “H”, test mode becomes available. Please set this pin
to ground or open usually.
Oscillator output.
Connection for an external crystal.
Programmable reference divider input.
Oscillator input.
Clock can be input to OSC
OSC
Ground.
OUT
f
f
f
r
r
r
pin open and make connection with OSC
> f
= f
< f
p
p
p
: “H” level (FC= “L”), “L” level (FC= “H”)
: High impedance
: “L” level (FC= “L”), “H” level (FC= “H”)
IN
from outside. In the case, please leave
Descriptions
p
) monitoring pin.
r
) monitoring pin.
IN
MB15C03
as AC coupling.
O
output
p
)
3