[ASAHI KASEI]
[AK4543]
<M0046-E-01>
1999/01
- 1 -
Analog Section
Input
Multiplexer
ADC
DAC
Control Signals
LINE_IN
SYNC
DATA_OUT
SDATA_IN
BIT_CLOCK
RESET#
CD
AUX
VIDEO
MIC2
MIC1
Phone
PC_BEEP
LINE_OUT
TRUE_LINE_LEVEL
MONO_OUT
AC'97
Registers
and
Control
Logic
AC
Link
Interface
Power Management
Clock Generator
3D Stereo Enhancement
Output
Mixer
Volume
and
Mute
Control
Volume
and
Mute
Control
Digital Section
Multiple Codec Support
Codec ID#
Voltage
Reference
EAPD
SEL_CMOS
18bit
18bit
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.
Features
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
AC'97
TM
Rev 2.1 Multimedia Audio CODEC
AK4543
* AKM assumes no responsibility for the usage beyond the conditions in this data sheet.
[ASAHI KASEI]
[AK4543]
<M0046-E-01>
1999/01
- 2 -
42
41
40
39
38
37
MONO_OUT
AVdd2
NC
LNLVL_OUT_L
LNLVL_OUT_R
AVss2
TEST2
43
TEST3
44
codec ID0#
45
codec ID1#
46
47
EAPD
1
48
SEL_CMOS
LINE_OUT_L
NC
NC
3Dcap
VRAD
DA
AFILTR
AFILTL
NC
Vref
AVss1
AVdd1
LINE_OUT_R
DVdd1
2
XTL_IN
3
XTL_OUT
4
DVss1
5
SDATA_OUT
6
B
I
T_CLK
7
SDATA_IN
8
DVdd2
9
SYNC
10
RESET#
11
12
DVss2
PC_BEEP
19
20
21
22
23
24
LINE_IN_R
LINE_IN_L
MIC2
MIC1
CD_R
CD_GND
18
CD_L
17
VIDEO_R
16
VIDEO_L
15
AUX_R
14
AUX_L
13
PHONE
36
35
25
26
27
28
29
30
31
32
33
34
[ASAHI KASEI]
[AK4543]
<M0046-E-01>
1999/01
- 3 -
Pin/Function
No.
Signal Name
I/O
Description
1
DVdd1
-
Digital power supply; 3.3V or 5.0V(DVdd1 = DVdd2)
0.1uF + 4.7uF capacitors should be connected to digital ground.
2
XTL_IN
(MCLKI)
I
24.576MHz(512fs) crystal is normally connected.
If a crystal is not connected, an external clock can be used.
3
XTL_OUT(open)
O
24.
576MHz(512fs) crystal. If an external clock is used, this pin should be open.
4
DVss1
-
Digital Ground; 0V
This pin should be directly connected to DVss2 on board.
5
SDATA_OUT
I
Serial 256-bit AC97 data stream from digital controller
6
BIT_CLK
I/O
12.288MHz(256fs) serial data clock
Output when Primary codec(codec ID=00).
Input when Secondary codec(codec ID=01, 10, 11).
7
DVss2
-
Digital Ground; 0V
This pin should be directly connected to DVss1 on board.
8
SDATA_IN
O
Serial 256-bit AC97 data stream to digital controller
9
DVdd2
-
Digital power supply; 3.3V or 5.0V(DVdd1 = DVdd2)
0.1uF + 4.7uF capacitors should be connected to digital ground.
10
SYNC
I
AC97 Sync Clock, 48kHz(1fs) fixed rate sampling rate
11
RESET#
I
AC97 Master Hardware Reset
12
PC_BEEP
I
PC Speaker beep pass through
13
PHONE
I
From telephony subsystem speakerphone
14
AUX_L
I
Aux Left Channel
15
AUX_R
I
Aux Right Channel
16
VIDEO_L
I
Video Audio Left Channel
17
VIDEO_R
I
Video Audio Right Channel
18
CD_L
I
CD Audio Left Channel
19
CD_GND
I
CD Audio analog ground; 0V
CD_GND or analog ground should be connected.
20
CD_R
I
CD Audio Right Channel
21
MIC1
I
Desktop Microphone Input
22
MIC2
I
Second Microphone Input
23
LINE_IN_L
I
Line In Left Channel
24
LINE_IN_R
I
Line In Right Channel
25
AVdd1
-
Analog power supply; 5.0V(AVdd1=AVdd2)
0.1uF + 4.7uF capacitors should be connected to AVss1(analog ground).
26
AVss1
-
Analog Ground; 0V
27
Vref
O
Reference Voltage Output;
0.1
F +4.7
F capacitors should be connected to Avss1(analog ground).
28
NC
-
No Connection
29
AFILTL
O
Anti-Aliasing Filter Cap; Connected to analog ground with 1nF capacitor.
30
AFILTR
O
Anti-Aliasing Filter Cap; Connected to analog ground with 1nF capacitor.
31
VRADDA
O
Vref for ADC and DAC; 0.1
F capacitor should be connected to analog ground.
32
3Dcap
O
3D Enhancement Cap; 27nF capacitor should be connected to analog ground.
33
NC
-
No Connection
34
NC
-
No Connection
35
LINE_OUT_L
O
Line Out Left Channel
36
LINE_OUT_R
O
Line Out Right Channel
37
MONO_OUT
O
To telephony subsystem speakerphone
38
AVdd2
-
Analog power supply; 5.0V(AVdd1=AVdd2)
0.1uF capacitor should be connected to AVss2(analog ground).
39
LNLVL_OUT_L
O
True Line Level Out Left Channel
40
NC
-
No Connection
41
LNLVL_OUT_R
O
True Line Level Out Right Channel
42
AVss2
-
Analog Ground; 0V
43
TEST2
I
Test pin (This pin should be open for normal operation)
44
TEST3
I
Test pin (This pin should be open for normal operation)
45
Codec ID0#
I
Codec ID configuration(ID select input for multiple codec extension) See Page20.
46
Codec ID1#
I
Codec ID configuration(ID select input for multiple codec extension) See Page20.
47
EAPD
O
External amplifier powerdown See Page 20.
[ASAHI KASEI]
[AK4543]
<M0046-E-01>
1999/01
- 4 -
48
SEL_CMOS
I
CMOS/TTL selection for digital input levels See Page 28.
CMOS: Leave open for 3.3V supply.
TTL : Tie to GND for 5V supply.
Absolute Maximum Rating
AVss1, AVss2, DVss1, DVss2 =0V (Note 1)
Parameter
Symbol
min
max
Units
Power Supplies
Analog(AVdd1 & AVdd2)
Digital(DVdd1 & DVdd2)
VA
VD
-0.3
-0.3
6.0
6.0
V
V
Input Current (any pins except for supplies)
IIN
-
10
mA
Analog Input Voltage
VINA
-0.3
VA+0.3
V
Digital Input Voltage
VIND
-0.3
VD+0.3
V
Ambient Temperature
Ta
-10
70
C
Storage Temperature
Ta
-65
150
C
Note 1: All voltages with respect to ground .
AGND(AVss1, AVss2) and DGND(DVss1, DVss2) must be the same voltage.
Warning: Operation at or beyond these limits may results in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Recommended Operating Condition
AGND, DGND=0V (Note 1)
Parameter
Symbol
min
typ
max
Units
Power Supplies
AK4543
Analog
Digital
VA
VD
4.75
3.135
5.0
3.3 or 5.0
5.25
5.25
V
V
Note 1 : All voltages with respect to ground.
[ASAHI KASEI]
[AK4543]
<M0046-E-01>
1999/01
- 5 -
AK4543 Analog Characteristics
Ta=25
C,AVdd=5.0V
5%, DVdd=3.3V
5% or 5V
5%, fs=48KHz, Signal Frequency =1kHz
All volume setting for ADC/DAC performance measurement is 0dB.
Parameter
min
Typ
max
Units
Audio-ADC
Resolution
18
Bits
S/N (A weighted)
85
90
dB
S/(N+D) (-1dB analog input)
70
77
dBFS
Inter Channel Isolation
70
77
dB
Inter Channel Gain Mismatch
0.5
dB
Full Scale Input Voltage
0.88
1.0
1.12
Vrms
Power Supply Rejection
50
dB
Audio DAC: measured at AOUTL/AOUTR via MIXER path
Resolution
18
Bits
S/N (A weighted)
: mixer+DAC measured at AOUT
84
89
dB
S/(N+D) (-1dB digital input)
75
83
dBFS
Inter Channel Isolation
70
80
dB
Inter Channel Gain Mismatch
1.0
dB
Full Scale Output Voltage
0.83
0.95
1.07
Vrms
Total Out-of-Band Noise (28.8kHz - 100kHz)
-70
dB
Power Supply Rejection
50
dB
MIC Amplifier / MUX
Gain : 20dB is selected
18
20
22
dB
Master volume (Mono, Stereo, True Line Level Out) : 1.5dB x 32 step
Step Size
-1.5
dB
Attenuation Control Range
-46.5
0
dB
Load Resistance
10
k
PC Beep : 3dB x 16 step
Step Size
-3.0
dB
Attenuation Control Range
-45
0
dB
Analog Mixer : 1.5dB x 32 step
Step Size
-1.5
dB
Gain Control Range
-34.5
+12
dB
Record Gain : 1.5dB x 16 step
Step Size
+1.5
dB
Gain Control Range
0
+22.5
dB
Mixer
Input Voltage (except for MIC)
1.0
Vrms
Input Voltage MIC : Gain = 0dB
MIC : Gain = 20dB
1.0
0.1
Vrms
Vrms
S/N(A weighed) : 0dB setting, 1 path is selected at Mixer
CD to AOUT:
Other analog input to AOUT
85
95
95
dB
dB
Input Impedance (Input gain=0dB,Rec_MUTE=off)
PC_BEEP only
Others(PHONE, LINE, CD, AUX, VIDEO)
Input Impedance (MIC1 and MIC2)
(10)
(10)
(10)
80
40
22
k
k
k
Power Supplies
Analog Power Supply Current(AVdd1 & AVdd2)
All ON mode(all PR_bits are 0)
Cold Reset status(Reset#=L, Vref is ON)
All OFF mode(all PR_bits are 1)
36
2.5
0
54
5
0.2
mA
mA
mA
Digital Power Supply Current(DVdd1 & DVdd2)
All ON mode(all PR_bits are 0) at DVDD=5V
All ON mode(all PR_bits are 0) at DVDD=3.3V
All OFF mode(all PR_bits are 1)
13
6.6
0
20
10
0.2
mA
mA
mA
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