參數(shù)資料
型號: MB15E07L
廠商: Fujitsu Limited
英文描述: Single Serial Input PLL Frequency Synthesizer On-Chip 2.5 GHz Prescaler
中文描述: 單串行輸入鎖相環(huán)頻率合成器片的2.5 GHz預(yù)分頻器
文件頁數(shù): 3/23頁
文件大?。?/td> 289K
代理商: MB15E07L
3
MB15E07L
I
PIN DESCRIPTIONS
Pin no.
Pin
name
I/O
Descriptions
SSOP-16
BCC-16
1
16
OSC
IN
I
Programmable reference divider input.
Oscillator input.
Connection for an crystal or a TCXO.
TCXO should be connected with a coupling capacitor.
2
1
OSC
OUT
O
Oscillator output.
Connection for an external crystal.
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 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.
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.
Control bit = “H” ; Data is transmitted to the programmable reference
counter.
Control bit = “L” ; Data is transmitted to the programmable counter.
(Open is prohibited.)
11
10
LE
I
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.
(Open is prohibited.)
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 D
O
output.
ZC = “L” ; D
O
becomes high impedance.
14
13
LD/fout
O
Lock detect signal output (LD)/phase comparator monitoring output
(fout).
The output signal is selected by LDS bit in the serial data.
LDS = “H” ; outputs fout (f
r
/f
p
monitoring output)
LDS = “L” ; outputs LD (“H” at locking, ”L” at unlocking.)
15
14
φ
P
O
Phase comparator output for an external charge pump. Nch open
drain output.
16
15
φ
R
O
Phase comparator output for an external charge pump. CMOS
output.
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