ics477 Integrated Device Technology, ics477 Datasheet - Page 2

• Manufacturer Part Number: ics477
• Description: Quad Pll With Vcxo For Hdtv
• Manufacturer: Integrated Device Technology

IDT™ / ICS™ QUAD PLL WITH VCXO FOR HDTV
ICS477-05
QUAD PLL WITH VCXO FOR HDTV
Pin Assignment
Pin Descriptions
5 4 .0 5 4 M
7 4 .1 7 5 M
7, 8, 9, 10, 19,
G N D
G N D
G N D
G N D
G N D
G N D
V D D
V D D
5, 6, 22, 23,
V IN
12, 13, 17
N C
N C
X 1
Number
24, 27
20, 21
15, 16
Pin
11
14
18
25
26
28
1
2
3
4
2 8 p in (1 5 0 m il) S S O P
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
54.054M
74.175M
Name
PDTS
GND
GND
GND
GND
VDD
27M
54M
VIN
Pin
NC
X2
XI
2 8
2 7
2 6
2 5
2 4
2 3
2 2
2 1
2 0
1 9
1 8
1 7
1 6
1 5
Pin Type
Output
Output
Output
Output
Power
Power
Power
Power
Power
Input
Input
Input
Input
X 2
V D D
P D T S
G N D
V D D
V D D
V D D
G N D
G N D
G N D
5 4 M
N C
2 7 M
2 7 M
-
Crystal connection. Connect to a 27 MHz fundamental mode pullable crystal.
Connect to ground.
Connect to ground.
VCXO Voltage input. Zero to 3.3 V analog control voltage for VCXO.
Connect to +3.3 V.
Connect to ground.
54.054 MHz clock output. Weak internal pull-down when tri-state.
No connect. Do not connect anything to these pins.
74.175 MHz clock output. Weak internal pull-down when tri-state.
27 MHz reference clock output. Weak internal pull-down when tri-state.
54 MHz clock output. Weak internal pull-down when tri-state.
Connect to ground.
Powers down entire chip. Tri-states CLK outputs when low. Internal pull-up.
Crystal connection. Connect to a 27 MHz fundamental mode pullable crystal.
2
Pin Description
VCXO AND SYNTHESIZER
ICS477-05
REV H 062404