cxa1787n Sony Electronics, cxa1787n Datasheet - Page 2

• Manufacturer Part Number: cxa1787n
• Description: 2ghz-band Pll Ic For Mobile Communications
• Manufacturer: Sony Electronics

Pin Description
No.
Pin
19
18
13
14
10
16
20
11
1
6
2
9
3
4
5
7
8
OSCO
D
CK
OSCI
FIN
NC
V
V
D
GND
LD
DATA
LAT
P
R
P
CC
O
O
Symbol
1
2
voltage (DC)
Typical pin
High: 2.2V
High: 2.2V
Open Low
Low: 2.0V
Low: 0.1V
2.2V
3V
3V
—
—
—
10
1
18
20
13
14
11
8
16
3
6
Equivalent circuit
– 2 –
500
—
—
—
V
(LD is V
GND
p
V
V
GND
GND
V
CC
p
GND
V
CC
GND
CC
CC
)
Reference frequency
signal input.
VCO signal input.
Power supply.
Charge pump 2 output.
Outputs only when the
LAT pin is High; in high
impedance when the
LAT pin is Low.
Ground.
Lock detection signal
output.
Phase comparator output.
Used for the external
charge pump.
Clock input.
Data input.
Latch input.
No connected.
Reference frequency
signal output.
Oscillator is formed by
connecting the crystal
resonator between this
pin and the OSCI pin; the
oscillator signal is used
as the reference
frequency signal.
Power supply for the
charge pump outputs
(Do1, Do2) and phase
comparator outputs
( R, P).
Charge pump 1 output.
Description
CXA1787N