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ASAHI KASEI EMD CORPORATION
Low Suprious Multiclock Generator for Audio
AK8133
Features
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 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)
Description
The AK8133 is a member of AKEMD'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 AKEMD'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 XOUT PLL2 PLL1 PLL1 CLK1 CLK2 CLK3 S0 S1 S2 S3 CLK4 REFOUT
Divide Logic and Output Control
GND
AK8133 Multi Clock Generator
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Mar-08
AK8133
Pin Descriptions
XOUT S0 S1 S2 VDD1 GND1 CLK1 CLK2 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9
Package: 16-Pin SSOP(Top View)
XIN VDD3 S3 VDD2 GND2 CLK4 CLK3 REFOUT
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Pin Name XOUT S0 S1 S2 VDD1 GND1 CLK1 CLK2 REFOUT CLK3 CLK4 GND2 VDD2 S3 VDD3
Pin Type OUT IN IN IN --OUT OUT OUT OUT OUT --IN --
Description Crystal connection, Connect to 27.000MHz crystal Please open when an external clock input is used Clock Out Frequency select 0, See Table 2 for the selection Clock Out Frequency select 1, See Table 2 for the selection Clock Out Frequency select 2, See Table 2 for the selection Power Supply 1 Ground 1 Clock output 1, See Table 1 for its selectable frequency Clock output 2, See Table 2 for its selectable frequency Reference Clock Output of 27.000MHz Crystal or external clock Clock output 3, See Table 2 for its selectable frequency Clock output 4, See Table 2 for its selectable frequency Ground 2 Power Supply 2 Clock Out Frequency select 1, See Table 1 for the selection Power Supply 3 Crystal connection, Connect to 27.000MHz crystal Or external clock input (minimum 1Vpp input). Input becomes binary after passing an internal HPF. Input Resistance is 37.5k-ohm. (1) (1) (1)
16
XIN
IN
(1) Internal pull up 360kW
Ordering Information
Part Number AK8133V AK8133E Marking 8133V 8133E Shipping Packaging Tape and Reel Tape and Reel Package 16-pin SSOP 16-pin SSOP Temperature Range -40 to 85 -20 to 85
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Mar-08
AK8133
Absolute Maximum Rating
Over operating free-air temperature range unless otherwise noted (1)
Items Supply voltage Input voltage 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. Symbol VDD Vin IIN Tstg Ratings -0.3 to 4.6 VSS-0.3 to VDD+0.3 10 -55 to 130 Unit V V mA C
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 Supply voltage
(1)
Symbol Ta1 Ta2 VDD Cp1 Cp2
Conditions AK8133V AK8133E Pin: CLK1-4 Pin: REFOUT
Min -40 -20 2.85
Typ
Max 85 85
Unit C C V pF pF
3.3
3.6 15 25
Output Load Capacitance Note:
(1) Power to VDD1, VDD2 and VDD3 requires to be supplied from a single source. A decoupling capacitor of 0.1mF for power supply line should be installed close to each VDD pin.
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Mar-08
AK8133
DC Characteristics
All specifications at VDD: over 2.85 to 3.6V, Ta=Ta1(AK8133V),Ta=Ta2(AK8133E) Parameter High level input voltage Low level input voltage Input leak current 1 Input leak current 2 High Level output voltage Low level output Voltage Current consumption Symbol VIH VIL I L1 I L2 VOH VOL Conditions Pin: S0,S1,S2,S3 Pin: S0,S1,S2,S3 Pin: S0,S1,S3 Pin: S2 Pin: CLK1-4, REFOUT IOH=-4mA Pin: CLK1-4, REFOUT IOL=+4mA No load IDD Clock out selection by note Ta=25 18.0 mA -20 -10 0.8VDD 0.2VDD MIN 0.7VDD 0.3VDD +10 +10 TYP MAX Unit V V A A V V
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 External clock frequency Period jitter (3) Output Clock duty Cycle Output clock rise time Output clock fall time Output Lock Time (4) (1) Amplitude is 1Vpp or more. (2) Measured with load capacitance of 15pF (3) Measured with load capacitance of 25pF (4) 1s in 1000 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. trise tfall Symbol Conditions Pin: XIN, XOUT Pin: XIN(1) Pin: CLK1-4, REFOUT Pin: CLK1-4
(2)
MIN 26.9 26.9
TYP 27.0000 27.0000 30
MAX 27.1 27.1
Unit MHz MHz ps
45 40
50 50 2.5 2.5 5
55 60
% % ns ns ms
Pin: REFOUT (3) Pin: CLK1-4 (2), REFOUT (3) Pin: CLK1-4 (2), REFOUT (3) Pin: CLK1-4 (2)
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Mar-08
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 S2 (Pin 4) L L L L H H H H S1 (Pin 3) L L H H L L H H S0 (Pin 2) L H L H L H L H
Clock Output Frequency (MHz) 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
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Mar-08
AK8133
Typical Connection Diagram
+3.3V typ.
27.0MHz Crystal Cext1 Cext2
AK8133
1:XOUT XIN:16 VDD3:15 S3:14 VDD2:13 GND2:12 CLK4:11 CLK3:10 REFOUT:9
C3 SW3
SW0 SW1 SW2 C1
2:S0 3:S1 4:S2 5:VDD1 6:GND1 7:CLK1 8:CLK2
C2
GND Clock Output
A: Crystal connection
+3.3V typ.
AK8133
1:XOUT XIN:16 VDD3:15 S3:14 VDD2:13 GND2:12 CLK4:11 CLK3:10 REFOUT:9
27MHz External Clock C3 SW3
SW0 SW1 SW2 C1
2:S0 3:S1 4:S2 5:VDD1 6:GND1 7:CLK1 8:CLK2
C2
GND Clock Output
B: External clock input
Figure 1: Typical Connection Diagram
C1-3 : 0.1mF 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,S1 S3, because these pins have internal pull up resister. For S2 tied VDD is "H" and tied GND is "L" .
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Mar-08
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 0.1mF 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. 0.1mF 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.
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Mar-08
AK8133
Package Information * Mechanical data
16pin SSOP (Unit: mm)
5.00TYP
16
9 A
4.4TYP
6.40.3
1
8
0.220.1
0.65
0.150.1 0.10.1 Detail A
1.25 TYP
0.50.2
0-10
* Marking
16 9
a: b:
b
8133X XXXXX AKM
c
c: d
#1 Pin Index Part number "X" is "V" for AK8133V "X" is "E" for AK8133E Date code (5 digits) Product Family Logo (1)
(1) AKM is the brand name of AKEMD's IC's.
a
1 8
d
- 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 -
* 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.
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Mar-08
AK8133
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AK8133
IMPORTANT NOTICE
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. AKEMD assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of any information contained herein. 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. 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.
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.
MS0930-E-00 - 10 -
Mar-08

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