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Asahi Kasei Microsystems

AK8126 Datasheet Preview

AK8126 Datasheet

Spread Spectrum Clock Generator

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ASAHI KASEI EMD CORPORATION
www.DataSheet4U.com
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
and C2 are
required for
Crystal input.
S1
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




Asahi Kasei Microsystems

AK8126 Datasheet Preview

AK8126 Datasheet

Spread Spectrum Clock Generator

No Preview Available !

AK8126
www.DataSheet4U.com
Pin Descriptions
XIN
XOUT
VSS
S1
S0
1
2
3
4
5
10
9
8
7
6
C/D/OFF
FR1
FR0
VDD
CKOUT
The brand name
of AKEMD’s IC’s
Package: 10-Pin TMSOP (Top View)
Pin Pin
Pin
No. Name Type
Description
1 XIN IN Crystal Input or Reference Clock Input
2 XOUT OUT Crystal Output. Leave this pin floating when the external clock is used.
3 VSS
-- Ground
4 S1 IN Spread Spectrum Modulation Ratio Select Pin1
5 S0 IN Spread Spectrum Modulation Ratio Select Pin0
6 CKOUT OUT Clock Output
7 VDD
-- Power Supply
8 FR0 IN Clock Frequency Range Select Pin 0
9 FR1 IN Clock Frequency Range Select Pin 1
10 C/D/OFF IN Spread Spectrum Modulation Mode Select Pin
(1) Internal pull down 360kW (Typ.)
(2) Internal pull up 360kW (Typ.)
(3) 3-Level Input for Low/Mid/Hi. Biased at 1/2 of VDD with pull-up/down resistors of 360kW (Typ.).
(1)
(1)
(2)
(1)
(3)
Ordering Information
Part Number
Marking
AK8126
8126
Shipping Packaging
Tape and Reel
Package
10-pin TMSOP
Temperature
Range
-10 to 85
Nov-07
MS0548-E-01
-2-


Part Number AK8126
Description Spread Spectrum Clock Generator
Maker Asahi Kasei Microsystems
Total Page 8 Pages
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