AK8133V

AK8133
Low Spurious
Multiclock Generator with XO
AK8133
Features
Description
27MHz Crystal Input or External Input
Four Frequency-Selectable Clock Outputs
One 27MHz-Reference Output
Selectable Clock out Frequencies:
- CLK1: 24.576,36.864MHz
- CLK2: 4.096,8.192,11.2896,12.288,16.384
22.5792,24.576,49.152MHz
- CLK3: 8.4672,12.288,16.9344,18.432
24.576,33.8688,36.864,73.728MHz
- CLK4: 16.9344,33.8688MHz
Built-in XO
Low Jitter Performance
- Period Jitter:
30 psec (Typ.) at CLK1-4
- Long Term Jitter:
60 psec (Typ.) at CLK1-4
Low Current Consumption:
18.0mA (Typ.) at 3.3V
Supply Voltage:
2.85V to 3.6V
Operating Temperature Range:
-40℃ to +85℃
Package:
16-pin SSOP (Lead free)
The AK8133 is a member of AKM’s low power
multi clock generator family designed for a high
quality audio cock with high performance C/N.
The AK8133 generates different frequency clocks
from a 27MHz crystal oscillator or external 27MHz
clock input. It provides them to up to four outputs
configured by pin-setting. Both circuitries of XO
and PLL in AK8133 are derived from AKM’s
long-term-experienced clock device technology,
and enable clock output to perform low jitter and to
operate with very low current consumption. The
AK8133 is available in a 16-pin SSOP package.
Applications
Personal Video Recorders
Set-Top-Boxes
Multi Media Receivers
Block Diagram
VDD
XIN
Crystal
Oscillator
PLL1
PLL1
XOUT
PLL2
Divide
Logic
and
Output
Control
CLK1
CLK2
CLK3
S0
CLK4
S1
S2
REFOUT
S3
GND
AK8133 Multi Clock Generator
MS0930-E-03
May-11
-1-
AK8133
Pin Descriptions
Package: 16-Pin SSOP(Top View)
XOUT
1
16
XIN
S0
2
15
VDD3
S1
3
14
S3
S2
4
13
VDD2
VDD1
5
12
GND2
GND1
6
11
CLK4
CLK1
7
10
CLK3
CLK2
8
9
Pin
Name
Pin
No.
REFOUT
Pin
Type
Description
Crystal connection, Connect to 27.000MHz crystal
1
XOUT
OUT
2
S0
IN
Clock Out Frequency select 0, See Table 2 for the selection
(1)
3
S1
IN
Clock Out Frequency select 1, See Table 2 for the selection
(1)
4
S2
IN
Clock Out Frequency select 2, See Table 2 for the selection
5
VDD1
--
Power Supply 1
6
GND1
--
Ground 1
7
CLK1
OUT
Clock output 1, See Table 1 for its selectable frequency
Please open when an external clock input is used
8
CLK2
OUT
Clock output 2, See Table 2 for its selectable frequency
9
REFOUT
OUT
Reference Clock Output of 27.000MHz Crystal or external clock
10
CLK3
OUT
Clock output 3, See Table 2 for its selectable frequency
11
CLK4
OUT
Clock output 4, See Table 2 for its selectable frequency
12
GND2
--
13
VDD2
--
Power Supply 2
14
S3
IN
Clock Out Frequency select 1, See Table 1 for the selection
15
VDD3
--
Power Supply 3
Ground 2
(1)
Crystal connection, Connect to 27.000MHz crystal
16
XIN
IN
Or external clock input (minimum 1Vpp input).
Input becomes binary after passing an internal HPF.
Input Resistance is 37.5k-ohm.
(1) Internal pull up 360kΩ
Ordering Information
Part Number
Marking
Shipping
Packaging
Package
Temperature
Range
AK8133V
8133V
Tape and Reel
16-pin SSOP
-40 to 85 ℃
AK8133E
8133E
Tape and Reel
16-pin SSOP
-20 to 85 ℃
MS0930-E-03
May-11
-2-
AK8133
Absolute Maximum Rating
Over operating free-air temperature range unless otherwise noted
Items
Symbol
Supply voltage
(1)
Ratings
Unit
V
VDD
-0.3 to 4.6
Input voltage
Vin
VSS-0.3 to VDD+0.3
V
Input current (any pins except supplies)
IIN
±10
mA
Tstg
-55 to 130
°C
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. AKM recommends that this device is handled with
appropriate precautions.
Recommended Operation Conditions
Parameter
Operating temperature
Supply voltage
(1)
Output Load Capacitance
Symbol
Conditions
Min
Typ
Max
Unit
Ta1
AK8133V
-40
85
°C
Ta2
AK8133E
-20
85
°C
VDD
3.6
V
Cp1
Pin: CLK1-4
2.85
3.3
15
pF
Cp2
Pin: REFOUT
25
pF
Note:
(1) Power to VDD1, VDD2 and VDD3 requires to be supplied from a single source.
0.1µF for power supply line should be installed close to each VDD pin.
MS0930-E-03
A decoupling capacitor of
May-11
-3-
AK8133
DC Characteristics
All specifications at VDD: over 2.85 to 3.6V, Ta=Ta1(AK8133V),Ta=Ta2(AK8133E)
Parameter
Conditions
Symbol
MIN
TYP
MAX
Unit
High level input voltage
VIH
Pin: S0,S1,S2,S3
Low level input voltage
VIL
Pin: S0,S1,S2,S3
Input leak current 1
IL 1
Pin: S0,S1,S3
-20
+10
μA
Input leak current 2
IL 2
Pin: S2
-10
+10
μA
High Level output
voltage
VOH
Low level output
Voltage
VOL
0.7VDD
V
0.3VDD
Pin: CLK1-4, REFOUT
V
0.8VDD
IOH=-4mA
V
Pin: CLK1-4, REFOUT
0.2VDD
IOL=+4mA
V
No load
Current consumption
IDD
18.0
Clock out selection by note
Ta=25℃
mA
AC Characteristics
All specifications at VDD: over 2.85 to 3.6V, Ta=Ta1(AK8133V),Ta=Ta2(AK8133E) unless otherwise noted
Parameter
Crystal clock frequency
Pin: XIN, XOUT
External clock frequency
Period jitter
Pin: XIN
(4)
Long Term jitter
Conditions
Symbol
(1)
(2)
(3)
(2)
(3)
Pin: CLK1-4 , REFOUT
Pin: CLK1-4 , REFOUT
1000cycles
(4)
Pin: CLK1-4
Output Clock duty
Cycle
(2)
Pin: REFOUT
(3)
Output clock rise time
trise
Pin: CLK1-4
(2)
Output clock fall time
tfall
Pin: CLK1-4
(2)
Pin: CLK1-4
(2)
Output Lock Time
(4)
, REFOUT
, REFOUT
MIN
TYP
MAX
Unit
26.9
27.0000
27.1
MHz
26.9
27.0000
27.1
MHz
30
ps
60
ps
45
50
55
%
40
50
60
%
(3)
2.5
ns
(3)
2.5
ns
5
ms
(1) Amplitude is 1Vpp or more.
(2) Measured with load capacitance of 15pF
(3) Measured with load capacitance of 25pF
(4) 1σ in 10000 sampling or more
(5) The time that output reaches the target frequency within accuracy of ±0.1% from the point that the power
supply reaches VDD.
MS0930-E-03
May-11
-4-
AK8133
Output clock frequency selection
The AK8133 generates a range of low-jitter and high-accuracy clock frequencies with two built-in PLLs and
provides to up to four assigned outputs. A frequency selection at assigned output pin is configured by
pin-setting of S0 (Pin2), S1 (Pin3), S2(Pin4) and S3 (Pin14).
The selectable frequency is shown in Table 2 and Table2.
Selection Pin
S3(Pin14)
L
H
Output Frequency(MHz)
CLK1(Pin 7)
36.864
24.576
Table 1: CLK1 Clock output Frequency
Sampling
Frequency
(kHz)
48.0
44.1
32.0
192.0
88.2
96.0
64.0
16.0/22.05
Selection Pin
Clock Output Frequency (MHz)
S2
(Pin 4)
S1
(Pin 3)
S0
(Pin 2)
L
L
L
L
H
H
H
H
L
L
H
H
L
L
H
H
L
H
L
H
L
H
L
H
CLK2
256fs
(Pin 8)
12.288
11.2896
8.192
49.152
22.5792
24.576
16.384
4.096
CLK3
384fs
(Pin 10)
18.432
16.9344
12.288
73.728
33.8688
36.864
24.576
8.4672
CLK4
(Pin 11)
33.8688
33.8688
33.8688
33.8688
33.8688
33.8688
33.8688
16.9344
Table 2: CLK2-4 Clock output Frequency
MS0930-E-03
May-11
-5-
AK8133
Typical Connection Diagram
+3.3V typ.
27.0MHz Crystal
Cext2
Cext1
AK8133
1:XOUT
XIN:16
SW0
2:S0
SW1
3:S1
S3:14
SW2
4:S2
VDD2:13
5:VDD1
GND2:12
6:GND1
CLK4:11
C1
C3
SW3
VDD3:15
7:CLK1
CLK3:10
8:CLK2
REFOUT:9
C2
GND
Clock Output
A: Crystal connection
+3.3V typ.
27MHz
External Clock
AK8133
1:XOUT
XIN:16
SW0
2:S0
VDD3:15
SW1
3:S1
S3:14
SW2
4:S2
VDD2:13
5:VDD1
GND2:12
6:GND1
CLK4:11
C1
7:CLK1
CLK3:10
8:CLK2
REFOUT:9
C3
SW3
C2
GND
Clock Output
B: External clock input
Figure 1: Typical Connection Diagram
C1-3
: 0.1µF
Cext1-2 : Depends on crystal characteristics. Refer the specification of the crystal.
Sw0-3 : Open is “H” and tied to GND is “L” for S0,S1and S3, because these pins have
internal pull up resister. For S2 tied VDD is “H” and tied GND is “L” .
MS0930-E-03
May-11
-6-
AK8133
PCB Layout Consideration
The AK8133 is a high-accuracy and low-jitter multi clock generator. For proper performances specified in
this datasheet, careful PCB layout should be taken. The followings are layout guidelines based on the
typical connection diagram shown in Figure 1
Power supply line – AK8133 has three power supply pins (VDD1-3) which deliver power to internal
circuitry segments. A 0.1µF decoupling capacitor should be placed as close to each VDD pin as possible.
Ground pin connection – AK8133 has two ground pins (GND1-2). These pin require connecting to plane
ground which will eliminate any common impedance with other critical switching signal return. 0.1µF
decoupling capacitors placed at VDD1, VDD2, and VDD3 should be grounded at close to the GND1pin, the
GND2 pin, and the GND2, respectively.
Crystal connection – Proper oscillation performance are susceptible to stray or parasitic capacitors
around crystal. The wiring traces to a crystal form X1 (Pin 1) and X2 (Pin 14) have equal lengths with no
via and as short in length as possible. These traces should be also located away from any traces with
switching signal.
MS0930-E-03
May-11
-7-
AK8133
Package Information
• Mechanical data
16pin SSOP (Unit: mm)
5.0 +0.3
-0.1
16
9
A
6.4±0.3
4.4 ± 0.2
8
1
0.22±0.05
0.65
0.15±0. 1
1.15 ±0.1
0.1±0.1
Detail A
0.5 ±0.2
0.1 ±0.1
0.1
0-1 0°
• Marking
16
b
a:
b:
9
c
8133X
XXXXX
AKM
c:
d
#1 Pin Index
Part number
“X” is “V” for AK8133V
“X” is “E” for AK8133E
Date code (5 digits)
(1)
Product Family Logo
d
a
1
8
• RoHS Compliance
All integrated circuits form Asahi Kasei Microdevices Corporation (AKM)
assembled in “lead-free” packages* are fully compliant with RoHS.
(*) RoHS compliant products from AKM are identified with “Pb free” letter indication on
product label posted on the anti-shield bag and boxes.
MS0930-E-03
May-11
-8-
AK8133
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MS0930-E-03
May-11
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AK8133
IMPORTANT NOTICE
l 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 Microdevices Corporation (AKM) or authorized distributors as to current status of the
products.
l Descriptions of external circuits, application circuits, software and other related information contained in
this document are provided only to illustrate the operation and application examples of the
semiconductor products. You are fully responsible for the incorporation of these external circuits,
application circuits, software and other related information in the design of your equipments. AKM
assumes no responsibility for any losses incurred by you or third parties arising from the use of these
information herein. AKM assumes no liability for infringement of any patent, intellectual property, or
other rights in the application or use of such information contained herein.
l 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.
l AKM products are neither intended nor authorized for use as critical componentsNote1) in any safety, life
support, or other hazard related device or systemNote2), and AKM assumes no responsibility for such use,
except for the use approved with the express written consent by Representative Director of AKM. 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.
l It is the responsibility of the buyer or distributor of AKM 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 AKM harmless from any and all claims arising from the use of said product in the
absence of such notification.
MS0930-E-03
May-11
- 10 -
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