ics525-03 Integrated Device Technology, ics525-03 Datasheet - Page 3

• Manufacturer Part Number: ics525-03
• Description: Pecl Input Oscar-tm User Configurable Clock
• Manufacturer: Integrated Device Technology

IDT™ / ICS™ PECL INPUT OSCAR™ USER CONFIGURABLE CLOCK
ICS525-03
PECL INPUT OSCAR™ USER CONFIGURABLE CLOCK
Pin Descriptions
Output Clock Selection
If RES is connected directly to ground, CLK1 and CLK2 are low skew, CMOS outputs clocks. They are not
complementary. If RES is connected to VDD through a 1.1 k resistor, then CLK1 and CLK2 become
complementary PECL outputs which require the external resistor network shown in the the block diagram. Refer to
Application Note MAN09 for additional information.
Number
10 - 18
3, 4, 5
24-28
6, 23
9, 20
1, 2,
Pin
19
21
22
7
8
KEY: I(PU) = Input with internal pull-up resistor.
S0, S1, S2
PECLIN
PECLIN
R5, R6,
V0 - V8
Name
R0-R4
CLK1
CLK2
GND
VDD
RES
Pin
Output
Output
Power
Power
Type
I(PU)
I(PU)
I(PU)
Input
Input
Input
Pin
Reference divider word input pins determined by user. Forms a binary
number from 0 to 127.
Select pins for output divider determined by user. See table above.
Connect to VDD.
PECL input.
Complementary PECL input.
Connect to ground.
VCO divider word input pins determined by user. Forms a binary number from
0 to 511.
Select eithe PECL or CMOS outputs. See table above.
Output clock. Either PECL or CMOS determined by RES.
Output clock. Either PECL or CMOS determined by RES.
3
Pin Description
ICS525-03
PECL MULTIPLIER
REV J 092209