ICS91718
ICS91718 is Clock Generator manufactured by Renesas.
Low EMI, Spread Modulating, Clock Generator
Features
:
- ICS91718 is a Spread Spectrum Clock targeted for Mobile PC and LCD panel applications. Generates an EMI optimized clock signal (EMI peak reduction of 7-14 d B on 3rd-19th harmonics) through use of Spread Spectrum techniques.
- ICS91718 operates with input frequencies at 14.318
- 80 MHz.
- Spread modulation frequency range is 20k Hz to 40k Hz.
- Spread percentage/type programming through I2C.
Specifications:
- Supply Voltages: VDD = 3.3V ±0.3V
- Cyc to Cyc jitter: <150ps
- Output duty cycle 45/55%
- Guarantees +85°C operational condition
- 8-pin SOIC (150 mil) package
Pin Configuration
CLKIN 1 VDD 2 GND 3
- - CLKOUT/FS_IN0 4
8 PD#- 7 SCLK 6 SDATA 5 REF_OUT/FS_IN1-
- 8-pin SOIC & TSSOP
Notes:
- Internal pull-up resistor
- - Internal pull-down resistor
Input Select Functionality
FS_IN1 FS_IN0 00 01 10 11
MHz 14.318 in 48.00 out 14.318 in 66.66 out 48.00 in/out 66.66 in/out 48.00 in/out 66.66 in/out
SPREAD % -1.0% down sprd -1.0% down sprd -1.0% down sprd +/-1.0% center sprd
Block Diagram
CLKIN
PLL1 Spread Spectrum
REFOUT...
