AK4541VQ Asahi Kasei Microsystems, AK4541VQ Datasheet

AK4541VQ

Manufacturer Part Number

AK4541VQ

Description

AC97 Rev 2.1 Multimedia Audio CODEC

Manufacturer

Asahi Kasei Microsystems

Datasheet

1.AK4541VQ.pdf (31 pages)

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[ASAHI KASEI]

AC’97 Rev. 2.1 Compliant

18bit Resolution A/D and D/A

Exceeds a PC98/99 Performance Categories:

Analog Inputs:

Direct PC_Beep Pass Through for lower system costs

Analog Output:

Multiple codec Capability

EAPD(External Amplifier Powerdown) Support

Power Supplies:

Lower Power Consumption:

48 Pin LQFP Package

SDATA_OUT

<M0047-E-01>

BIT_CLOCK

SDATA_IN

Speakerphone and PC BEEP Inputs

Codec ID#

AK4541

4 Stereo Inputs: LINE, CD, VIDEO, AUX

2 Independent MIC Inputs

Stereo LINE Output with volume control

True Line Level with volume control

Mono Output with volume control

A/D……………… 87dBA SNR

D/A……………… 87dBA SNR

D/A+Mixer…...… 85dBA SNR

A-A……………… 92dBA SNR

The AK4541 can work as a Primary or Secondary.

Analog 3.3V, Digital 3.3V

135mW at full operation

* AKM assumes no responsibility for the usage beyond the conditions in this data sheet.

RESET#

EAPD

SYNC

Multiple Codec Support

Interface

Power Management

Link

Clock Generator

Digital Section

Registers

Control

AC'97

Logic

and

AC’97

Control Signals

18bit

ADC

18bit

DAC

Reference

Voltage

- 1 -

Audio Codec ’97 Rev 2.1 requirements. The AC Link serial interface

allows the AK4541 to be used with digital controllers as well as

custom logic accelerators to meet PC98 and PC99 requirements for a

PCI audio solution.

volume controls along with a mono output, multiple stereo and mono

inputs, are combined to create flexible mixing, gain and mute

functions to provide a complete integrated audio solution for PCs.

The AK4541 can function as a Primary AC’97 or Secondary codec

depending on the codec ID configuration(Multiple codec extension),

making the AK4541 suitable for the docking station application and

multiple codec applications such as 4 speaker output or 6 speaker

output.

Sampling at 48kHz, the AK4541 provides excellent audio

performance. It offers extreme low power consumption, and flexible

power-down modes for use in Sub-NoteBook, laptops, desktop PCs,

and aftermarket add-in boards.

Like the earlier pin-compatible AK4540, AK4542 and AK4543, the

AK4541 is available in a compact 48-lead LQFP package.

The AK4541 is a pin compatible upgrade for the AK4540, AK4542

and AK4543, some software changes will be required to experience

the extra functions ot the AK4541.

The AK4541 is a 18bit high performance codec compliant with

The AK4541 provides two pairs of stereo outputs with independent

Rev 2.1 Multimedia Audio CODEC

Multiplexer

Output

Analog Section

Mixer

Input

3D Stereo Enhancement

Volume

Control

Mute

and

Mute

and

LINE_IN

AUX

VIDEO

MIC1

MIC2

Phone

PC_BEEP

LINE_OUT

TRUE_LINE_LEVEL

MONO_OUT

[AK4541]

1999/01

Related parts for AK4541VQ

AK4541VQ Summary of contents

Page 1

KASEI] AK4541 AC’97 Rev. 2.1 Compliant 18bit Resolution A/D and D/A Exceeds a PC98/99 Performance Categories: A/D……………… 87dBA SNR D/A……………… 87dBA SNR D/A+Mixer…...… 85dBA SNR A-A……………… 92dBA SNR Analog Inputs: 4 Stereo Inputs: LINE, CD, VIDEO, AUX Speakerphone and ...

Page 2

KASEI] <M0047-E-01> [AK4541] 1999/01 ...

Page 3

KASEI] <M0047-E-01> [AK4541] 1999/01 ...

Page 4

KASEI] <M0047-E-01> [AK4541] 1999/01 ...

Page 5

KASEI] <M0047-E-01> [AK4541] 1999/01 ...

Page 6

KASEI] ± <M0047-E-01> [AK4541] 1999/01 ...

Page 7

KASEI] <M0047-E-01> [AK4541] 1999/01 ...

Page 8

KASEI <M0047-E-01> [AK4541] 1999/01 ...

Page 9

KASEI setup delay BIT_CLK SDATA_IN SDATA_OUT T SYNC n n <M0047-E-01> hold - 9 - [AK4541 1999/01 ...

Page 10

KASEI Notes: 1. All AC-link signals are normally low through the trailing edge of RESET#. Bringing SDATA_OUT high for the rising edge of RESET# causes the AK4541 AC-link outputs to go high impedance which is suitable ...

Page 11

KASEI ‘97 communicates with its companion AC ‘97 controller via a digital serial link, ”AC-link”. All digital audio streams, and command/status information are communicated over this point to point serial interconnect. A breakout of the signals ...

Page 12

KASEI] <M0047-E-01> [AK4541] 1999/01 ...

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KASEI] A new audio output frame begins with a low to high transition of SYNC. SYNC is synchronous to the rising edge of BIT_CLK. On the immediately following falling edge of BIT_CLK, the AK4541 samples the assertion of SYNC. ...

Page 14

KASEI] <M0047-E-01> [AK4541] 1999/01 ...

Page 15

KASEI new audio input frame begins with a low to high transition of SYNC. SYNC is synchronous to the rising edge of BIT_CLK. On the immediately following falling edge of BIT_CLK, the AK4541 samples the assertion of ...

Page 16

KASEI] <M0047-E-01> [AK4541] 1999/01 ...

Page 17

KASEI] n Reg Name D15 D14 D13 Num 00h Reset 0 0 02h Master Volume Mute X ML5 04 LINVL Volume Mute X ML5 06h Master Volume Mono Mute X 0Ah PC_BEEP Volume Mute X 0Ch Phone Volume Mute ...

Page 18

KASEI] n The PC Beep is routed to L & R Line outputs directly when AK4541 RESET State(Reset# is “L”). This is so that Power on Self Test(POST) codes can be heard by the user in ...

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KASEI <M0047-E-01> [AK4541] 1999/01 ...

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KASEI <M0047-E-01> [AK4541] 1999/01 ...

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KASEI] n This register is a read only register that is used to determine the specific vendor identification. The ID method is Microsoft Plug and Play Vendor ID code with upper byte of 7Ch register, the first character of ...

Page 22

KASEI] AK4541 Block Diagram PC_VOL (0A[4:1]) PC_BEEP GAIN (0C[5:0]) PHONE LINE_IN_ GAIN(10[12:8]) LINE_IN_R GAIN (10[4:0]) CD_L GAIN (12[12:8]) CD_GND GAIN (12[4:0]) CD_R GAIN (14[12:8]) VIDEO_L GAIN (14[4:0]) VIDEO_R GAIN (16[12:8]) AUX_L AUX_R GAIN (16[4:0]) (0E[6]) MIC1 GAIN (0E[5:0]) 20dB ...

Page 23

KASEI] n The AK4541 is capable of operating at multiple reduced power modes for when no activity is required. The state of power down is controlled by the Powerdown Register (26h). There are 8 separate commands for power down. ...

Page 24

KASEI] PR0=1 ADCs off Normal PR0=0 & ADC=1 AK4541 Powerdown/Powerup flow with analog still alive n Digital Controller BIT_CLK SDATA_OUT RESET# SDATA_IN0 SDATA_IN1 SDATA_IN2 SDATA_IN3 <M0047-E-01> PR1=1 PR4=1 Digital DACs off I/F PR0 PR1 off PR4 PR1=0 & Warm ...

Page 25

KASEI] n Activating the Test Modes AC ‘97 has two test modes. One is for ATE in circuit test and the other is for vendor specific tests. AC ‘97 enters the ATE in circuit test mode regardless of SYNC ...

Page 26

KASEI] The following figure shows the system connection diagram. Primary codec: codec ID1:codecID0=0:0 AVDD: 3.3V DVDD: 3.3V <M0047-E-01> System Design - 26 - [AK4541] 1999/01 ...

Page 27

KASEI] Secondary codec codec ID1:codecID0=0:1,1:0 or 1:1 This figure is the case of ID1 =0 and ID0=1. AVDD: 3.3V DVDD: 3.3V <M0047-E-01> [AK4541] 1999/01 ...

Page 28

KASEI] J15 LINE_IN_L J4 LINE_IN_R separated from other non-used input pins. <M0047-E-01> J15 LINE_IN_L J4 LINE_IN_R - 28 - [AK4541] 1999/01 ...

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KASEI] 48pin P 9.0 + 0.2 7 0.19 + 0.05 <M0047-E-01> Package 1 1 0.01M 0 10 0.5 + ...

Page 30

... KASEI] 1) Pin #1 indication 2) Date Code : XXXXXXX (7 digits) 3) Marketing Code : AK4541VQ 4) Country of Origin 5) Asahi Kasei Logo <M0047-E-01> Marking AK4541VQ XXXXXXX JAPAN [AK4541] 1999/01 ...

Page 31

... These products and their specifications are subject to change without notice. Before considering any use or application, consult the Asahi Kasei Microsystems Co., Ltd. (AKM) sales office or authorized distributor concerning their current status. AKM assumes no liability for infringement of any patent, intellectual property, or other right in the application or use of any information contained herein ...

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