ASAHI KASEI EMD CORPORATION
Single Clock Generator
AK8111
Features
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 Rang e:
-10 to +80℃
Package:
6-pin SON (lead-free)
Body Size 2.6mm x 1.6mm
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.
Applications
IEEE1394
Audio
Block Diagram
AK8111 Single Clock Generator
MS0453-E-05 Feb-08
- 1 -
AK8111
The brand name
of AKEMD’s IC’s
Pin Descriptions
Package: 6-Pin SON (Top View)
*lead-free
Pin
No. Pin
Name Pin
Type Description
1 VDD -- Power Supply
2 VSS --
Ground
3 CLKOUT OUT
Clock output
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”.
4 OE IN
CLKOUT output enable control
“L”: CLKOUT=”L” and power down. “H”: active (1)
5 FSEL IN
Clock frequency select
“L”: 24.576MHz, “H”: 12.288MHz (1)
6 CLKIN IN
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.
(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 ℃
Feb-08 MS0453-E-05
- 2 -
AK8111
The brand name
of AKEMD’s IC’s
Absolute Maximum Rating Absolute Maximum Rating
Over operating free-air temperature range unless otherwise noted (1)
Items Items SymbolSymbol Ratings Ratings UnitUnit
Over operating free-air temperature range unless otherwise noted (1)
Supply Voltage VDD -0.3 to 4.6 V
Input Voltage Vin VSS-0.3 to VDD+0.3 V
Input Current (any pins except supplies) IIN ±10 mA
Storage Temperature Tstg -55 to 130 °C
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.
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.
ESD Sensitive Device
Recommended Operation Conditions
Parameter Symbol Conditions Min Typ Max Unit
Operating Temperature Ta -10 80 °C
Supply Voltage VDD 2.7 3.0 3.6 V
Input Clock Frequency Fin 27 MHz
Input Clock Duty Cycle 50 %
Output Load Capacitance Cp1 Pin: CLKOUT 15 pF
MS0453-E-05 Feb-08
- 3 -
AK8111
The brand name
of AKEMD’s IC’s
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 MIN TYP MAX Unit
High Level Input Voltage VIH Pin: CLKIN, FSEL, OE 0.8VDD V
Low Level Input Voltage VIL Pin: CLKIN, FSEL, OE 0.2VDD V
Input Current 1 IL 1 Pin: CLKIN -10 +10 μA
Input Current 2 IL 2 Pin: OE, FSEL -10 +75 μA
High Level Output
Voltage VOH
Pin: CLKOUT
IOH=-4mA
(VDD=3.0V, Ta=25℃)
0.8VDD V
Low Level Output
Voltage VOL
Pin: CLKOUT
IOL=+4mA
(VDD=3.0V, Ta=25℃)
0.2VDD V
Current Consumption IDD
No load
(VDD=3.0V, Ta=25℃) 3.5 mA
Power down current Ipd
OE=”L”
FSEL=”L” or open 0 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 MIN TYP MAX Unit
Output Clock Duty Cycle(2) (3) 45 50 55 %
Output Clock Rise Time(2) (3) t
rise 0.2VDD to 0.8VDD 4.0 ns
Output Clock Fall Time(2) (3) t
fall 0.2VDD to 0.8VDD 4.0 ns
Output Clock Jitter (2) (3) Jit Period, 1σ 15 ps
Output Lock Time(1) t
lock Power-up 1 ms
(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
Feb-08 MS0453-E-05
- 4 -
AK8111
The brand name
of AKEMD’s IC’s
Package Information Package Information
• Mechanical data (Units:mm) • Mechanical data (Units:mm)
• Marking • Marking
a: #1 Pin Index a: #1 Pin Index
b: Part number b: Part number
c: Date code (3 digits) 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.
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.
0.8MAX 0.8MAX
0.13±0.05
0.5
0.5
2.6±0.1
0.2±0.1
(0.1) (0.1)
0.2±0.1
(0.1)
(0.1)
3.0±0.1
Bottom View
(0.1)
(
1.24
)
(Φ0.4)
S
0.1 M
+
0.1 S
MS0453-E-05 Feb-08
- 5 -
AK8111
The brand name
of AKEMD’s IC’s
• 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.
Feb-08 MS0453-E-05
- 6 -
