ICS650-05 Integrated Circuit System, ICS650-05 Datasheet - Page 2

• Manufacturer Part Number: ICS650-05
• Description: HDTV Clock Synthesizer
• Manufacturer: Integrated Circuit System

MDS 650-05 B
Integrated Circuit Systems • 525 Race Street • San Jose • CA • 95126 • [phone]tel • www.icst.com
Pin Assignment
Key: I = Input with internal pull-up; O = output; P = power supply connection; XI, XO = crystal connections
Pin Descriptions
Pin #
X1/ICLK
13.5M
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
GND
VDD
VDD
VDD
GND
27M
NC
X2
20 pin SSOP (QSOP)
Name
X1/ICLK
2
10
FRCLK
1
3
4
7
8
9
13.5M
5
6
GND
GND
GND
GND
GND
VDD
VDD
VDD
27M
27M
54M
VDD
FRS
VDD
OE
X2
NC
Type Description
16
15
14
13
12
11
17
XO
20
19
18
XI
O
O
O
O
O
P
P
P
P
P
P
P
P
P
P
-
I
I
VDD
OE
FRS
FRCLK
VDD
GND
GND
54M
27M
GND
Connect to +3.3 V or +5.0 V. Must be same as other VDDs.
Crystal connection to a 27.0 MHz crystal or leave unconnected for clock input
Crystal connection. Connect to a 27.0 MHz fundamental mode crystal or clock input.
Connect to +3.3 V or +5.0 V. Must be same as other VDDs.
Connect to +3.3 V or +5.0 V. Must be same as other VDDs.
Connect to ground.
No Connect. Do not connect anything to this pin.
27 MHz buffered reference output.
13.5 MHz clock output.
Connect to ground.
Connect to ground.
27 MHz buffered clock output.
54 MHz buffered clock output.
Connect to ground.
Connect to ground.
Connect to +3.3 V or +5.0 V. Must be same as other VDDs.
Frame Rate Clock as shown on table.
Frame Rate Frequency Select input pin. Determines FRCLK output as shown on table.
Output Enable. Tri-states all clocks when low.
Connect to +3.3 V or +5.0 V. Must be same as other VDDs.
2
FRCLK Output Select Table (in MHz)
FRS Pin 18
HDTV Clock Synthesizer
0
1
FRCLK Pin 17
74.175824
74.250000
ICS650-05
Revision 100301