Pin descriptions, Mb15e07sl – FUJITSU MB15E07SL User Manual
Page 3
MB15E07SL
3
■
PIN DESCRIPTIONS
Pin no.
Pin
name
I/O
Descriptions
SSOP
BCC
1
16
OSC
IN
I
Programmable reference divider input. Connection to a TCXO.
2
1
OSC
OUT
O
Oscillator output.
3
2
V
P
–
Power supply voltage input for the charge pump.
4
3
V
CC
–
Power supply voltage input.
5
4
D
O
O
Charge pump output.
Phase of the charge pump can be selected via programming of the FC bit.
6
5
GND
–
Ground.
7
6
Xfin
I
Prescaler complementary input, which should be grounded via a capacitor.
8
7
fin
I
Prescaler input.
Connection to an external VCO should be done via AC coupling.
9
8
Clock
I
Clock input for the 19-bit shift register.
Data is shifted into the shift register on the rising edge of the clock.
(Open is prohibited.)
10
9
Data
I
Serial data input using binary code.
The last bit of the data is a control bit. (Open is prohibited.)
11
10
LE
I
Load enable signal input. (Open is prohibited.)
When LE is set high, the data in the shift register is transferred to a latch
according to the control bit in the serial data.
12
11
PS
I
Power saving mode control. This pin must be set at “L” at Power-ON.
(Open is prohibited.)
PS = “H”; Normal mode
PS = “L”; Power saving mode
13
12
ZC
I
Forced high-impedance control for the charge pump (with internal pull up
resistor.)
ZC = “H”; Normal Do output.
ZC = “L”; Do becomes high impedance.
14
13
LD/fout
O
Lock detect signal output (LD)/phase comparator monitoring output (fout).
The output signal is selected via programming of the LDS bit.
LDS = “H”; outputs fout (fr/fp monitoring output)
LDS = “L”; outputs LD (“H” at locking, “L” at unlocking.)
15
14
φ
P
O
Phase comparator N-channel open drain output for an external charge
pump. Phase can be selected via programming of the FC bit.
16
15
φ
R
O
Phase comparator CMOS output for an external charge pump. Phase can
be selected via programming of the FC bit.