MB15F07SL Datasheet, PDF (3/27 Pages) Fujitsu Component Limited. – Dual Serial Input PLL Frequency Synthesizer

MB15F07SL
s PIN DESCRIPTIONS
Pin no.
Pin
SSOP-16 BCC-16 ^name
I/O
Descriptions
1
16 GND2 – Ground for PLL 2 section.
2
1
OSCIN
I
The programmable reference divider input. TCXO should be connected
with a AC coupling capacitor.
3
2
GND1 – Ground for the PLL 1 section.
4
3
fin1
I
Prescaler input pin for the PLL 1.
Connection to an external VCO should be via AC coupling.
5
4
VCC1 – Power supply voltage input pin for the PLL 1 section.
Lock detect signal output (LD)/phase comparator monitoring
output (fout).
6
5 LD/fout O The output signal is selected by LDS bit in a serial data.
LDS bit = “H” ; outputs fout signal
LDS bit = “L” ; outputs LD signal
Power saving mode control for the PLL 1 section. This pin must be set
7
6
PS1
I
at “L” during Power-ON. (Open is prohibited.)
PS1 = “H” ; Normal mode
PS1 = “L” ; Power saving mode
Charge pump output for the PLL 1 section.
8
7
Do1 O Phase characteristics of the phase detector can be selected via
programming of the FC-bit.
Charge pump output for the PLL 2 section.
9
8
Do2 O Phase characteristics of the phase detector can be selected via
programming of the FC-bit.
Power saving mode control for the PLL 2 section. This pin must be set
10
9
PS2
I
at “L” during Power-ON. (Open is prohibited.)
PS2 = “H” ; Normal mode
PS2 = “L” ; Power saving mode
11
10
Xfin2
I
Prescaler complementary input for the PLL 2 section.
This pin should be grounded via a capacitor.
12
11
VCC2
–
Power supply voltage input pin for the PLL 2 section, the shift register and
the oscillator input buffer. When power is OFF, latched data of PLL 2 is lost.
13
12
fin2
I
Prescaler input pin for the PLL 2.
Connection to an external VCO should be via AC coupling.
Load enable signal inpunt (with a schmitt trigger input buffer.)
14
13
LE
I When the LE bit is set “H”, data in the shift register is transferred to the
corresponding latch according to the control bit in the serial data.
Serial data input (with a schmitt trigger input buffer.)
15
14
Data
I
Data is transferred to the corresponding latch (PLL 1-ref counter, PLL 1-
prog. counter, PLL 2-ref. counter, PLL 2-prog. counter) according to the
control bit in the serial data.
16
15
Clock
I
Clock input for the 23-bit shift register (with a schmitt trigger input buffer.)
One bit of data is shifted into the shift register on a rising edge of the clock.
3