[ASAHI KASEI]
[AK4543]
AK4543
Features
AC’97™ Rev 2.1 Multimedia Audio CODEC
General Description
The AK4543 is a 18bit high performance codec compliant with
Audio Codec ’97 Rev 2.1 requirements. The AC Link serial interface
allows the AK4543 to be used with digital controllers as well as
custom logic accelerators to meet full PC98 and PC99 requirements
for a PCI audio solution.
The AK4543 provides two pairs of stereo outputs with independent
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 AK4543 can function as a Primary AC’97 or Secondary codec
depending on the codec ID configuration(Multiple codec extension),
making the AK4543 suitable for the docking station application and
multiple codec applications such as 4 speaker output or 6 speaker
output.
Sampling at 48kHz, the AK4543 provides excellent audio
performance, meeting or exceeding all standard requirements. It
offers low power consumption, and flexible power-down modes for
use in laptops, desktop PCs, and aftermarket add-in boards.
Like the earlier pin-compatible AK4540 and AK4542, the AK4543
is available in a compact 48-lead LQFP package.
The AK4543 is a pin compatible upgrade for the AK4540 and
AK4542, some software changes will be required to experience the
extra functions ot the AK4543.
•
AC’97 Rev. 2.1 Compliant
•
18bit Resolution A/D and D/A
•
Exceeds a PC98/99 Performance Categories:
A/D……………… 90dBA SNR
D/A……………… 90dBA SNR
D/A + Mixer …… 89dBA SNR
A-A……………… 95BA SNR
•
Analog Inputs:
4 Stereo Inputs: LINE, CD, VIDEO, AUX
Speakerphone and PC BEEP Inputs
2 Independent MIC Inputs
•
Direct PC_Beep Pass Through for lower system costs
•
Analog Output:
Stereo LINE Output with volume control
True Line Level with volume control
Mono Output with volume control
•
3D Stereo Enhancement
•
Multiple codec Capability
The AK4543 can work as a Primary or Secondary.
•
EAPD(External Amplifier Powerdown) Support
•
Power Supplies:
Analog 5.0V, Digital 3.3V or 5.0V
•
Low Power Consumption
200mW(Analog:5V/Digital:3.3V) at full operation
•
48 Pin LQFP Package
SEL_CMOS
EAPD
SYNC
DATA_OUT
SDATA_IN
BIT_CLOCK
RESET#
Codec ID#
Digital Section
Power Management
18bit
ADC
Analog Section
Volume
and
Mute
Control
LINE_IN
CD
AUX
VIDEO
MIC1
MIC2
Phone
PC_BEEP
AC
Link
Interface
AC'97
Registers
and
Control Signals
Control
Logic
18bit
DAC
Input
Multiplexer
Output
Mixer
Volume
and
Mute
Control
LINE_OUT
TRUE_LINE_LEVEL
MONO_OUT
Multiple Codec Support
Clock Generator
Voltage
Reference
3D Stereo Enhancement
* AKM assumes no responsibility for the usage beyond the conditions in this data sheet.
<M0046-E-01>
-1-
1999/01
AKM [ ASAHI KASEI MICROSYSTEMS ]
