MB15E07L Datasheet, PDF (3/23 Pages) Fujitsu Component Limited. – Single Serial Input PLL Frequency Synthesizer On-Chip 2.5 GHz Prescaler

MB15E07L
s PIN DESCRIPTIONS
Pin no.
SSOP-16 BCC-16
Pin
name
I/O
Descriptions
Programmable reference divider input.
1
16
OSCIN
I
Oscillator input.
Connection for an crystal or a TCXO.
TCXO should be connected with a coupling capacitor.
2
1
OSCOUT
O
Oscillator output.
Connection for an external crystal.
3
2
VP
– Power supply voltage input for the charge pump.
4
3
VCC
– Power supply voltage input.
5
4
DO
O
Charge pump output.
Phase of the charge pump can be reversed by FC bit.
6
5
GND – Ground.
7
6
Xfin
I
Prescaler complementary input, and should be grounded via a
capacitor.
8
7
fin
I
Prescaler input.
Connection with an external VCO should be done with AC coupling.
Clock input for the 19-bit shift register.
9
8
Clock I Data is shifted into the shift register on the rising edge of the clock.
(Open is prohibited.)
Serial data input using binary code.
The last bit of the data is a control bit. (Open is prohibited.)
10
9
Data
I Control bit = “H” ; Data is transmitted to the programmable reference
counter.
Control bit = “L” ; Data is transmitted to the programmable counter.
Load enable signal input (Open is prohibited.)
11
10
LE
I When LE is high, the data in the shift register is transferred to a latch,
according to the control bit in the serial data.
Power saving mode control. This pin must be set at “L” at Power-ON.
12
11
PS
I
(Open is prohibited.)
PS = “H” ; Normal mode
PS = “L” ; Power saving mode
Forced high-impedance control for the charge pump (with internal pull
13
12
ZC
I
up resistor.)
ZC = “H” ; Normal DO output.
ZC = “L” ; DO becomes high impedance.
Lock detect signal output (LD)/phase comparator monitoring output
(fout).
14
13
LD/fout O The output signal is selected by LDS bit in the serial data.
LDS = “H” ; outputs fout (fr/fp monitoring output)
LDS = “L” ; outputs LD (“H” at locking, ”L” at unlocking.)
15
14
φP
O
Phase comparator output for an external charge pump. Nch open
drain output.
16
15
φR
O
Phase comparator output for an external charge pump. CMOS
output.
3