Clock Generator. AK8126 Datasheet

AK8126 Generator. Datasheet pdf. Equivalent

Part AK8126
Description Spread Spectrum Clock Generator
Feature www.DataSheet4U.com ASAHI KASEI EMD CORPORATION Spread Spectrum Clock Generator AK8126 Features Ou.
Manufacture Asahi Kasei Microsystems
Datasheet
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AK8126
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



AK8126
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-





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