MB1519 Datasheet, PDF (9/16 Pages) Fujitsu Component Limited. – DUAL SERIAL INPUT PLL FREQUENCY SYNTHESIZER

MB1519
ANALOG SWITCH
ON/OFF of the analog switch is controlled by the combination of the control data and LE signal. When the analog switch is ON, BS1, BS2 pin output
the charge pump output (D₀₁, D₀₂). When analog switch is OFF, BS pin is set to high impedance.
Control data = H
Divide ratio of transmit section is set
Control data = L
Divide ratio of reception section is set
LE = H
LE = L
LE = H
LE = L
Analog switch of transmit section
ON
OFF
OFF
OFF
Analog switch of reception section
OFF
OFF
ON
OFF
When a analog switch is inserted between LP1 and LP2, faster lock up time is achieved to reduce LPF time constant during PLL channel switching.
CHARGE PUMP
D_O
LPF-1
LPF-2
V_CO
ANALOG SW
BISW
(CONTROL SIGNALE)
RECOMMENDED OPERATING CONDITIONS
Parameter
Power Supply Voltage
Input Voltage
Operating Temperature
Symbol
V_CC
V_P
V_IN
T_A
Min
2.7
V_CC
GND
–40
Value
Typ
3.0
–
–
–
Max
5.5
8.0
V_CC
+85
Unit
V
V
V
°C
Note
V_CC1 = V_CC2
HANDLING PRECAUTIONS
• This device should be transported and stored in anti-static containers.
• This is a static-sensitive device; take proper anti-ESD precautions. Ensure that personnel and equipment are properly grounded. Cover work-
benches with grounded conductive mats.
• Always turn the power supply off before inserting or removing the device from its socket.
• Protect leads with a conductive sheet when handling or transporting PC boards with devices.
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