AK8133E - AKM Semiconductor

AK8133

MS0930-E-03 May-11

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1

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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

- 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)

Description

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

AK8133 Multi Clock Generator

Low Spurious

Multiclock Generator with XO

AK8133

VDD

PLL1

PLL2

XIN

XOUT

CLK1

CLK2

CLK3

CLK4

REFOUT

GND

PLL1

PLL2

S0

S1

S2

S3

Crystal

Oscillator Divide

Logic

and

Output

Control

AK8133

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Pin Descriptions

Package: 16-Pin SSOP(Top View)

No.

Name Pin

Type

Description

1

XOUT

OUT

Crystal connection, Connect to 27.000MHz crystal

Please open when an external clock input is used

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

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

-- Ground 2

13

VDD2 -- Power Supply 2

14

S3 IN Clock Out Frequency select 1, See Table 1 for the selection (1)

15

VDD3 -- Power Supply 3

16

XIN IN

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) 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 ℃

16

15

14

13

12

11

10

9

XOUT

S0

S1

S2

VDD1

GND1

CLK1

CLK2

XIN

VDD3

S3

VDD2

GND2

CLK4

CLK3

REFOUT

1

2

3

4

5

6

7

8

AK8133

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Absolute Maximum Rating

Over operating free-air temperature range unless otherwise noted (1)

Items Symbol

Ratings Unit

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. AKM recommends that this device is handled with

appropriate precautions.

Recommended Operation Conditions

Parameter Symbol

Conditions Min Typ Max Unit

Ta1 AK8133V -40 85 °C

Operating temperature Ta2 AK8133E -20 85 °C

Supply voltage (1) VDD 2.85 3.3 3.6 V

Cp1 Pin: CLK1-4 15 pF

Output Load Capacitance Cp2 Pin: REFOUT 25 pF

Note:

(1) Power to VDD1, VDD2 and VDD3 requires to be supplied from a single source. A decoupling capacitor of

0.1µF for power supply line should be installed close to each VDD pin.

ESD Sensitive Device

AK8133

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DC Characteristics

All specifications at VDD: over 2.85 to 3.6V, Ta=Ta1(AK8133V),Ta=Ta2(AK8133E)

Parameter Symbol

Conditions MIN TYP MAX Unit

High level input voltage VIH Pin: S0,S1,S2,S3 0.7VDD

V

Low level input voltage VIL Pin: S0,S1,S2,S3 0.3VDD

V

Input leak current 1 IL1 Pin: S0,S1,S3 -20 +10 μA

Input leak current 2 IL2 Pin: S2 -10 +10 μA

High Level output

voltage VOH Pin: CLK1-4, REFOUT

IOH=-4mA 0.8VDD

V

Low level output

Voltage VOL Pin: CLK1-4, REFOUT

IOL=+4mA 0.2VDD

V

Current consumption IDD No load

Clock out selection by note

Ta=25℃ 18.0 mA

AC Characteristics

All specifications at VDD: over 2.85 to 3.6V, Ta=Ta1(AK8133V),Ta=Ta2(AK8133E) unless otherwise noted

(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.

Parameter Symbol

Conditions MIN TYP MAX Unit

Crystal clock frequency Pin: XIN, XOUT 26.9 27.0000

27.1 MHz

External clock frequency Pin: XIN(1) 26.9 27.0000

27.1 MHz

Period jitter (4) Pin: CLK1-4(2), REFOUT (3)

30 ps

Long Term jitter (4) Pin: CLK1-4(2), REFOUT (3)

1000cycles 60 ps

Pin: CLK1-4 (2) 45 50 55 %

Output Clock duty

Cycle Pin: REFOUT (3) 40 50 60 %

Output clock rise time trise Pin: CLK1-4 (2), REFOUT (3)

2.5 ns

Output clock fall time tfall Pin: CLK1-4 (2), REFOUT (3)

2.5 ns

Output Lock Time (4) Pin: CLK1-4 (2) 5 ms

AK8133

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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 Output Frequency(MHz)

S3(Pin14) CLK1(Pin 7)

L 36.864

H 24.576

Table 1: CLK1 Clock output Frequency

Selection Pin Clock Output Frequency (MHz)

Sampling

Frequency

(kHz) S2

(Pin 4) S1

(Pin 3)

S0

(Pin 2)

CLK2

256fs

(Pin 8)

CLK3

384fs

(Pin 10)

CLK4

(Pin 11)

48.0 L L L 12.288 18.432 33.8688

44.1 L L H 11.2896 16.9344 33.8688

32.0 L H L 8.192 12.288 33.8688

192.0 L H H 49.152 73.728 33.8688

88.2 H L L 22.5792 33.8688 33.8688

96.0 H L H 24.576 36.864 33.8688

64.0 H H L 16.384 24.576 33.8688

16.0/22.05 H H H 4.096 8.4672 16.9344

Table 2: CLK2-4 Clock output Frequency

AK8133

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Typical Connection Diagram

A: Crystal connection

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” .

1:XOUT

2:S0

3:S1

4:S2

5:VDD1

6:GND1

7:CLK1

8:CLK2

XIN:16

VDD3:15

S3:14

VDD2:13

GND2:12

CLK4:11

CLK3:10

REFOUT:9

AK8133

+3.3V typ.

GND

C1

C2

C3

SW1

SW2

SW3

SW0

Clock Output

27MHz

External Clock

1:XOUT

2:S0

3:S1

4:S2

5:VDD1

6:GND1

7:CLK1

8:CLK2

XIN:16

VDD3:15

S3:14

VDD2:13

GND2:12

CLK4:11

CLK3:10

REFOUT:9

AK8133

+3.3V typ.

GND

C1

C2

C3

SW1

SW2

SW3

SW0

Clock Output

Cext1 Cext2

27.0MHz Crystal

AK8133

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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.

AK8133

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Package Information

• Mechanical data

0.

1

±

0.

1

0

-

10

°

Detail A

0.1

5

±

0.

1

0.

22

±

0.

05

0.

6

5

5.0

A

1

8

9

16

pin SSOP (Unit: mm)

4.4

±

0.2

6.4

±

0.3

0.5

±

0.2

1.15

±

0.1

±

0.1

+0.3

-0.1

0.1

• Marking

a: #1 Pin Index

b: Part number

“X” is “V” for AK8133V

“X” is “E” for AK8133E

c: Date code (5 digits)

d Product Family Logo (1)

• 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.

1

16

8

9

8133X

XXXXX

AKM

a

b c

d

AK8133

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AK8133

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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.