AK8111

ASAHI KASEI EMD CORPORATION
Single Clock Generator
AK8111
Features
Description
The AK8111 is a single clock generator IC with an
integrated PLL. It can generate either a
12.288MHz or a 24.576MHz clock from a 27MHz
master clock input frequency. Through pin control,
the output can be enabled or disabled, the
frequency can be changed, and the device can be
placed in a power-down mode. A high performance
PLL locks to the master clock input, generating a
low jitter, highly accurate clock output without an
external crystal.
Output Frequency Range:
12.288MHz / 24.576MHz (Selectable)
Input Frequency:
27MHz
Low Jitter Performance:
15 ps (Typ.) Period, 1σ
Low Current Consumption:
3.5mA (Typ.)
Output Load:
15pF (max.)
Supply Voltage:
2.7 – 3.6V
Operating Temperature Range:
-10 to +80℃
Package:
6-pin SON (lead-free)
Body Size 2.6mm x 1.6mm
Applications
IEEE1394
Audio
Block Diagram
AK8111 Single Clock Generator
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The brand name
of AKEMD’s IC’s
AK8111
Pin Descriptions
Package: 6-Pin SON (Top View)
*lead-free
Pin
No.
Pin
Name
Pin
Type
1
VDD
--
Power Supply
2
VSS
--
Ground
3
CLKOUT
OUT
4
OE
IN
5
FSEL
IN
Description
Clock output
6
CLKIN
Output clock frequency is selectable to 12.288MHz or 24.576MHz by setting
the FSEL pin. In power down mode (OE = “L”), this pin is “L”.
CLKOUT output enable control
“L”: CLKOUT=”L” and power down.
Clock frequency select
“L”: 24.576MHz, “H”: 12.288MHz
(1)
“H”: active
(1)
Clock input (27MHz)
Place the AK8111 in power down (OE = “L”) mode when an input clock is not
supplied. Unstable input to the CLKIN causes the unstable CLKOUT signal.
DC input to the CLKIN also causes the unstable CLKOUT signal.
IN
(1) Internal pull down 100kΩ (Typ.)
Ordering Information
Part Number
Marking
Shipping Packaging
Package
Temperature
Range
AK8111L
111(AK8111)
Tape and Reel
6-pin SON
-10 to 80 ℃
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The brand name
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AK8111
Absolute Maximum Rating
Over operating free-air temperature range unless otherwise noted (1)
Items
Supply Voltage
Input Voltage
Symbol
Ratings
Unit
VDD
-0.3 to 4.6
V
Vin
VSS-0.3 to VDD+0.3
V
IIN
±10
mA
Tstg
-55 to 130
°C
Input Current (any pins except supplies)
Storage Temperature
Note
(1) Stress beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
These are stress ratings only. Functional operation of the device at these or any other conditions beyond those
indicated under “Recommended Operating Conditions” is not implied. Exposure to absolute-maximum-rating
conditions for extended periods may affect device reliability. Electrical parameters are guaranteed only over the
recommended operating temperature range.
ESD Sensitive Device
This device is manufactured on a CMOS process, therefore, generically susceptible to
damage by excessive static voltage. Failure to observe proper handling and
installation procedures can cause damage. AKEMD recommends that this device is handled with
appropriate precautions.
Recommended Operation Conditions
Parameter
Operating Temperature
Symbol
Conditions
Min
Ta
-10
Supply Voltage
VDD
2.7
Input Clock Frequency
Fin
Input Clock Duty Cycle
Output Load Capacitance
Cp1
Pin: CLKOUT
MS0453-E-05
Typ
Max
Unit
80
°C
3.0
3.6
V
27
MHz
50
%
15
pF
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The brand name
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AK8111
DC Characteristics
All specifications at VDD: over 2.7 to 3.6V, Ta: -10 to +80℃, Input Frequency: 27MHz,
unless otherwise noted
Parameter
Symbol
Conditions
High Level Input Voltage
VIH
Pin: CLKIN, FSEL, OE
Low Level Input Voltage
VIL
Pin: CLKIN, FSEL, OE
Input Current 1
IL 1
Pin: CLKIN
IL 2
Pin: OE, FSEL
Input Current 2
MIN
TYP
MAX
Unit
0.8VDD
V
0.2VDD
V
-10
+10
μA
-10
+75
μA
Pin: CLKOUT
High Level Output
Voltage
VOH
IOH=-4mA
0.8VDD
V
(VDD=3.0V, Ta=25℃)
Pin: CLKOUT
Low Level Output
Voltage
VOL
Current Consumption
IDD
Power down current
Ipd
IOL=+4mA
0.2VDD
V
(VDD=3.0V, Ta=25℃)
No load
3.5
(VDD=3.0V, Ta=25℃)
OE=”L”
0
FSEL=”L” or open
mA
10
μA
AC Characteristics
All specifications at VDD: over 2.7 to 3.6V, Ta: -10 to +80℃, Input Frequency: 27MHz,
unless otherwise noted
Parameter
Symbol
Conditions
Output Clock Duty Cycle(2) (3)
(2) (3)
Output Clock Rise Time
MIN
TYP
MAX
Unit
45
50
55
%
trise
0.2VDD to 0.8VDD
4.0
ns
Output Clock Fall Time
tfall
0.2VDD to 0.8VDD
4.0
ns
(2) (3)
Jit
Period, 1σ
15
ps
tlock
Power-up
1
ms
(2) (3)
Output Clock Jitter
(1)
Output Lock Time
(1) The time that output reaches the target frequency within accuracy of ±0.1% from the point that the
power supply reaches VDD
(2) With the load capacitance specified by the recommended operation conditions
(3) Design value
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AK8111
Package Information
• Mechanical data (Units:mm)
0.8MAX
0.8MAX
0.2±0.1
(0.1)
(0.1)
0.13±0.05
(1.24)
2.6±0.1
3.0±0.1
(0.1)
0.5
0.5
Bottom View
(0.1)
0.2±0.1
(0.1)
(Φ0.4)
S
+
0.1
0.1
M
S
• Marking
a: #1 Pin Index
b: Part number
c: Date code (3 digits)
AKM and the logo -
- are the brand of AKEMD’s IC’s and identify that AKEMD
continues to offer the best choice for high performance mixed-signal solution under
this brand.
MS0453-E-05
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The brand name
of AKEMD’s IC’s
AK8111
• RoHS Compliance
All integrated circuits form Asahi Kasei EMD Corporation (AKEMD) assembled in
“lead-free” packages* are fully compliant with RoHS.
(*) RoHS compliant products from AKEMD are identified with “Pb free” letter indication on
product label posted on the anti-shield bag and boxes.
IMPORTANT NOTICE
z These products and their specifications are subject to change without notice.
When you consider any use or application of these products, please make inquiries the sales office of Asahi
Kasei EMD Corporation (AKEMD) or authorized distributors as to current status of the products.
z AKEMD assumes no liability for infringement of any patent, intellectual property, or other rights in the
application or use of any information contained herein.
z Any export of these products, or devices or systems containing them, may require an export license or
other official approval under the law and regulations of the country of export pertaining to customs and
tariffs, currency exchange, or strategic materials.
z AKEMD products are neither intended nor authorized for use as critical componentsNote1) in any safety, life
support, or other hazard related device or systemNote2), and AKEMD assumes no responsibility for such use,
except for the use approved with the express written consent by Representative Director of AKEMD. As
used here:
Note1) A critical component is one whose failure to function or perform may reasonably be expected to result,
whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and
which must therefore meet very high standards of performance and reliability.
Note2) A hazard related device or system is one designed or intended for life support or maintenance of safety or for
applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may
reasonably be expected to result in loss of life or in significant injury or damage to person or property.
z It is the responsibility of the buyer or distributor of AKEMD products, who distributes, disposes of, or
otherwise places the product with a third party, to notify such third party in advance of the above content
and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and
hold AKEMD harmless from any and all claims arising from the use of said product in the absence of such
notification.
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