datasheet for AK8128MV by AKM Semiconductor

datasheet for AK8128MV by AKM Semiconductor

AK8128MV

Supply Voltage:

3.0V to 3.6V

Operating Temperature Range:

-40 to +85

Package:

10-pin TMSOP (lead-free)

Block Diagram

Low Suprious

Multiclock Generator with XO

AK8128MV

Features

External Clock Input Frequencies:

-

2.8224/3.072/11.2896/12.288/27.000MHz

Two Frequency-Selectable Clock Outputs

Selectable Clock Output Frequencies:

-

CLK1: 24.576/45.000/46.40625MHz

-

CLK2: 11.2896MHz/off

Low Jitter Performance

-

Period Jitter (1

σ):

-

20 psec (Typ.) at CLK1-2

Long Term Jitter (1000 cycle, 1

σ):

40 psec (Typ.) at CLK1-2

Low Current Consumption:

8.0mA (Typ.) at 3.3V

Output Load:

Description

The AK8128MV is a member of AKM’s low power multi clock generator family designed for a high quality audio clock with high performance C/N.

The AK8128MV generates different frequency clocks from external clock input. It provides them to up to two outputs configured by pin-setting.

The circuitries of PLL in AK8128MV 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 AK8128MV is available in a

10-pin TMSOP package.

Applications

Digital Television

Personal Video Recorders

Set-Top-Boxes

Multi Media Receivers

Digital Still Camera

Digital Video Camera

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AK8128MV

Pin Descriptions

Pin

No.

Pin

Name

Pin

Type

Description

1 VDD2 -- Power Supply

2 VSS2 -- Ground

3 CLKIN IN External Clock Input. See table.1.

4 VSS1 -- Ground

5 VDD1 -- Power Supply

6 CLK1 Clock Output. See table.1.

Package: 10-Pin TMSOP(Top View)

(1)

(1), (2)

(2)

9 TEST -- Connect to GND

10 CLK2 OUT Clock Output. See table.1.

(1) Internal pull up 400k

Ω (Typ.)

(2) Internal pull down 400k

Ω (Typ.)

Ordering Information

Part Number Marking

Shipping

Packaging

AK8128MV 128MV Tape and Reel

Package

10-pin TMSOP

Temperature

Range

-40 to 85

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AK8128MV

Absolute Maximum Rating

Over operating free-air temperature range unless otherwise noted

(1)

Items Symbol

Supply voltage

Input voltage

VDD

Vin

-0.3 to 4.6

VSS- 0.3 t o VDD+ 0.3

V

V

Input current (any pins except supplies)

Storage temperature

I

IN

Tstg

± 10

-55 to 130 mA

°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.

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

Operating temperature

Supply voltage

(1)

Ta AK8128MV

VDD

-40 85

°C

3.0 3.3 3.6 V

Output Load Capacitance Cpl Pin: CLK1-2 15 pF

Note:

(1) Power to VDD1 and VDD2 requires to be supplied from a single source. A decoupling capacitor of 0.1

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

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AK8128MV

DC Characteristics

All specifications at VDD: over 3.0 to 3.6V, Ta = -40 to 85

unless otherwise noted

Parameter Symbol Conditions MIN MAX

High level input voltage 1

Low level input voltage 1

High level input voltage 2

Middle level input voltage 2

Low level input voltage 2

Input leak current 1

Input leak current 2

Input leak current 3

Input leak current 4

High Level output voltage

Low level output

Voltage

Current consumption

V

IL2

I

L1

I

L2

I

L3

V

IH1

V

IL1

Pin: CLKIN, S1

Pin: CLKIN, S1

V

IH2

Pin: S0

V

IM2

Pin: S0

V

V

I

I

L4

OH

OL

DD

Pin: S0

Pin: CLKIN

Pin: S1

Pin: S0

Pin: TEST

V

IL

=GND

Pin: CLK1-2

I

OH

=-4mA

Pin: CLK1-2

I

OL

=+4mA

Ta=25

, No load

S[0:1] = All Setting

0.7VDD

0.3VDD

V

V

0.7VDD

V

0.45VDD

0.5VDD 0.55VDD

V

0.3VDD

V

0.8VDD

0.2VDD

V

V

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AK8128MV

AC Characteristics

All specifications at VDD: over 3.0 to 3.6V, Ta = -40 to 85 unless otherwise noted

External clock frequency

Input Clock Duty Cycle

Output clock frequency

Period jitter

(3)

Long Term jitter

(3)

Output Clock Duty Cycle

Output clock rise time

Output clock fall time

Power-up Time

(4)

Output Lock Time

(5)

Pin: CLKIN

S[0:1] = “LL”

Pin: CLKIN

S[0:1] = “ML”

Pin: CLKIN

S[0:1] = “LH”

Pin: CLKIN

S[0:1] = “MH”

Pin: CLKIN

S[0:1] = “HL”, “HH”

Pin: CLKIN

At VDD/2

Pin: CLK1

S[0:1] = “LL”, “LH”, “ML”, “MH”

Pin: CLK1

S[0:1] = “HL”

Pin: CLK1

S[0:1] = “HH”

Pin: CLK2

S[0:1] = “LL”, “LH”, “ML”, “MH”

Pin: CLK2

(1)

S[0:1] = “HL”, “HH”

Pin: CLK1, 2

(2)

S[0:1] = “LL”, “LH”, “ML”, “MH”

Pin: CLK1

(2)

S[0:1] = “HL”, “HH”

Pin: CLK1, 2

(2)

S[0:1] = “LL”, “LH”, “ML”, “MH”

1000cycles

Pin: CLK1

(2)

S[0:1] = “HL”, “HH”

1000cycles

CLK1-2

(2) t rise

Pin: CLK1, 2

(2) t fall

Pin: CLK1, 2

(2)

Pin: CLK1, 2

(2)

Pin: CLK1

(2)

S[0:1] = “HL” “HH”

2.8224 MHz

11.2896 MHz

12.288 MHz

27.000 MHz

24.576 MHz

45.000 MHz

46.40625 MHz

11.2896 MHz

(2) Measured with load capacitance of 15pF

(3)

1σ in 10000 sampling or more

(4) The time to settle output into ±0.1% of specified frequency from the point that the power supply reaches VDD.

(5) The time to settle output into ±20ppm of specified frequency from the point that the S[0:1] is switched.

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AK8128MV

Output clock frequency selection

The AK8128MV generates a range of low-jitter and high-accuracy clock frequencies with two built-in PLLs and provides to up to two assigned outputs. A frequency selection at assigned output pin is configured by pin-setting of S0 (Pin8) and S1 (Pin7).

The selectable frequency is shown in Table1.

Selection Pin

S0

(Pin 8)

S1

(Pin 7)

Table 1: CLK1-2 Clock output Frequency

Clock Input Frequency (MHz) Clock Output Frequency (MHz)

CLKIN

(Pin 3) (Pin 6) (Pin 10)

L

L

M

M

H

H

L

H

L

H

L

H

2.8224

11.2896

3.072

12.288

27.000

27.000

24.576

24.576

24.576

24.576

45.000

46.40625

11.2896

11.2896

11.2896

11.2896

“L” Output

“L” Output

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AK8128MV

Typical Connection Diagram

Figure 1: Typical Connection Diagram

C1-2 : 0.1

μF

SW0 : Open is “H” and tied to GND is “L” for S0 because this pin has internal pull up resister.

SW1 : Open is “M”, tied to VDD is “H” and tied to GND is “L” for S1 because this pin has internal pull down and up resister.

PCB Layout Consideration

The AK8128MV 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 – AK8128MV has two power supply pins (VDD1-2) which deliver power to internal circuitry segments. A 0.1

μF decoupling capacitor should be placed as close to each VDD pin as possible.

Ground pin connection – AK8128MV has two ground pins (VSS1-2). These pin require connecting to plane ground which will eliminate any common impedance with other critical switching signal return.

0.1

μF decoupling capacitors placed at VDD1 and VDD2 should be grounded at close to the VSS1 pin and the VSS2 pin, respectively.

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AK8128MV

Package Information

Mechanical data

10 TMSOP

0

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AK8128MV

Marking

10 6 a: #1 Pin Index b: Part number

c: Date code (3 digits, Year/month/Lot No.)

b a

5

c

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.

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AK8128MV

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 Microdevices Corporation (AKM) or authorized distributors as to current status of the products.

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.

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.

AKM products are neither intended nor authorized for use as critical components

Note1)

in any safety, life support, or other hazard related device or system

Note2)

, 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.

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.

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