MB15A02 Fujitsu Microelectronics, MB15A02 Datasheet - Page 4

• Manufacturer Part Number: MB15A02
• Description: Low Power Serial Input PLL Synthesizer With 1.1ghz Prescaler
• Manufacturer: Fujitsu Microelectronics

4
PIN DESCRIPTION
MB15A02
SSOP–16P SSOP–20P
SOP–16P
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
Pin No.
2,9,12,16,19
10
11
13
14
15
17
18
20
1
3
4
5
6
7
8
Pin Name
OSC
OSC
GND
Clock
Data
V
V
f
FC
D
LD
NC
LE
OUT
f
IN
P
CC
O
P
R
IN
OUT
I/O
O
O
O
O
O
O
I
–
–
–
I
I
I
I
I
–
Oscillator input.
Oscillator output.
A crystal is placed between OSC
Power supply pin for charge pump. When the internal charge pump is not
used, V
Power supply pin.
Charge pump output.
Ground.
Phase comparator output.
Normally this pin outputs high level. When there is a phase error between fr
and fp, LD becomes low for the period corresponding to the error.
Prescaler input.
The connection with an external VCO should be AC connection.
Clock input for 19-bit shift register and 16-bit shift register.
On rising edge of the clock shifts one bit of data into shift register.
Binary serial data input.
The last bit of data is a control bit. When this bit 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.
Load enable input (with internal pull up resistor).
When LE is high, the data stored in shift register is transferred into latch ac-
cording to the control bit.
Phse select input of phase comparator (with internal pull up resistor).
When FC is low level, the characteristics of phase comparator is reversed.
FC input signal is also used to select fout pin (test pin) output, fr or fp.
No connection
Minitor pin of phase comparator input.
fout pin outputs either programmable reference divider output (fr) or pro-
grammable divider output (fp) according to FC pin input level.
FC=H: It is the same as fr output level.
FC=L: It is the same as fp output level.
Outputs for external charge pump.
The characteristics are reversed according to FC input.
Outputs for external charge pump.
P pin is N-channel open drain output.
R pin is CMOS output.
P
pin needs to be connected to V
Description
IN
and OSC
CC
.
OUT
.