ICS91730 Datasheet, PDF (2/11 Pages) Integrated Circuit Systems – Low EMI, Spread Modulating, Clock Generator

ICS91730
Pin Descriptions
PIN #
1
2
3
4
5
6
7
PIN NAME
CLKIN
VDD
GND
CLKOUT
REF_OUT/FS_IN1*
SDATA
SCLK
PIN
TYPE
PWR
IN
OUT
I/O
I/O
PWR
PWR
DESCRIPTION
Input for reference clock.
Power supply, nominal 3.3V
Ground pin.
Modulated clock output.
Un-modulated 3.3V reference clock output.
Frequency select latch input. Refer to the functionality table.
Data pin for SMBus circuitry, 5V tolerant.
Clock pin of SMBus circuitry, 5V tolerant.
8
PD#*
Asynchronous active low input pin, with 120Kohm internal pull-up resistor,
PWR used to power down the device. The internal clocks are disabled and the
VCO and the crystal are stopped.
* Internal Pull-Up Resistor ** Internal Pull-Down Resistor
0794D—05/23/05
2