AK8126 Datasheet, PDF (1/8 Pages) Asahi Kasei Microsystems – Spread Spectrum Clock Generator

ASAHI KASEI EMD CORPORATION
Spread Spectrum
Clock Generator
AK8126
Features
Output Frequency Range:
16MHz – 128MHz
Configurable Spread Spectrum Modulation:
- AKEMD’s Original Spread Spectrum
Profile
- Modulation Ratio:
Center Spread:
±0.25%, ±0.5%, ±1.0%, ±1.5%
Down Spread:
-0.5%, -1.0%, -2.0%, -3.0%
- Modulation Frequency:
38.46KHz – 76.92KHz
Input Frequency Range:
- Crystal: 16MHz – 32MHz
- Reference Clock Input : 16MHz – 128MHz
Low Jitter Performance:
100 ps (Max.) Cycle-to-cycle 1s
Low Current Consumption:
2.5mA (Typ.) at 16MHz, 3.3V
Supply Voltage:
3.0 – 3.6V
Operating Temperature Range:
-10 to +85
Package:
10-pin TMSOP (Thin Miniature SOP )
Description
The AK8126 is a spread spectrum clock generator
designed for Home AV applications where EMI
elimination is seriously required. The device uses
the AKEMD’s original spread spectrum profile** to
provide excellent EMI reduction effect without
degradation of system performance. The AK8126
accepts a wide clock frequency range from a
crystal or reference clock input, and provides a
variable spread spectrum modulation selectable by
pin-setting, allowing the device to use in most AV
products easily. The device is available in a very
small 10-pin TMSOP package, and its pin
configuration offers simple PCB layout.
**: Patent pending
Applications
Digital TV Sets
Display Panels
Personal Video Recorders
Set-Top-Boxes
Multi Media Receivers
Block Diagram
Crystal or
Clock Input ^XIN
C1
*_{C2 XOUT}
* Capacitors, C1 S1
and C2 are
required for
Crystal input.
S0
C/D/OFF
FR1
FR0
Crystal
Oscillator
PLL
with Spread
Spectrum
modulator
Control
Logic
CKOUT
VSS
VDD
AK8126 Spread Spectrum Clock Generator
MS0548-E-01
-1-
Nov-07