ASAHI KASEI
[AK4560A]
AK4560A
16bit CODEC with ALC and MIC/HP/SPK-Amps
GENERAL DESCRIPTION
AK4560A is a 16bit stereo CODEC with a built-in Microphone-Amp, Headphone-Amp and Speaker-Amp. Input
circuits include Microphone/LINE inputs selector, power supply for microphone, Pre-Amp, HPF-Amp, EQ-Amp
and ALC (Auto Level Control) circuit, and output circuits include LINEOUT buffer, Analog Volume,
Headphone-Amp and Speaker-Amp, therefore the AK4560A suits a portable application with a built-in LCD
and etc. As Multi-Power-Supply-System can be set a suitable power supply voltage in each block, the
AK4560A is compatible with high performance and low power dissipation. The package is a 64pin LQFP,
therefore, a new system can be a smaller board area than a current system is composed of 2 or 3 chips.
FEATURE
1. Resolution: 16bits
2. Recording Function:
•
3-Input Selector (Internal MIC, External MIC, LINE)
•
Pre-Amp/EQ-Amp
•
HPF-Amp for wind-noise
•
Digital ALC (Auto Level Control) circuit
•
FADEIN / FADEOUT
•
Digital HPF for offset cancellation (fc=3.7Hz@fs=48kHz)
3. Playback Function
•
Digital De-emphasis Filter (tc = 50/15us, fs = 32kHz, 44.1kHz and 48kHz)
•
LINEOUT Buffer: +2dBV
•
Analog Volume
- 0dB
∼
-50dB, Mute
•
Headphone-Amp
- Output Level: -3.4dBV, THD+N = 1%
•
Speaker-Amp with a built-in Digital ALC circuit
- BTL Output
- Output Power: 80mW @ 8Ω
•
BEEP and Shutter Signal Inputs
4. Analog Through Mode
5. Power Management
6. ADC Characteristics (LIN
→
ALC1
→
ADMIX
→
ADC)
•
S/(N+D): 80dB, DR=S/N: 86dB
7. DAC Characteristics (DAC
→
LINEOUT)
•
S/(N+D): 82dB, DR=S/N: 88dB
8. Master Clock: 256fs/384fs
9. Sampling Rate: 8kHz
∼
50kHz
10. Audio Data Interface Format: MSB-First, 2’s compliment (AK4518/AK4550 Compatible)
•
ADC: 16bit MSB justified, DAC: 16bit LSB justified
11. Ta = -20
∼
85°C
12. Power Supply
•
CODEC, Analog Volume: 2.6
∼
3.3V (typ. 2.8V)
•
LINEOUT, Headphone-Amp: 3.8
∼
5.5V (typ. 4.5V)
•
MIC-Amp: 2.6
∼
5.5V (typ. 3.9V)
•
Speaker-Amp: 3.8
∼
4.3V (typ. 4.0V)
13. Power Supply Current
•
All Circuits Power-up: 32.5mA
14. Package: 64pin LQFP, 0.5mm Pitch
MS0028-E-00
-1-
2000/05
ASAHI KASEI
[AK4560A]
EXT_MIC_L INT_MIC_L
MVDD
+
MVSS
MVCM
+
INT_MIC_R EXT_MIC_R
MRF
64
63
62
61
60
59
58
57
56
55
54
53
MPWR
52
51
50
49
Pre Amp
1
INT/EXT
EQ Amp
Pre Amp
MIC Block
MIC
INT/EXT
EQ Amp
48
INT/EXT
HPF
2
OFF
HPF
3
ON
INT/EXT
HPF
47
OFF
HPF
ADC
MIX
ALC1
ADMIX
MIX
ADC
HPF
AIN
46
ON
HPF
4
IPGA
HPF
45
5
SPKP or HPP
AOUT1
VCOM
6
+
44
AOUT0
AOUT1
43
+
SVDD
VREF
7
+
AOUT0
42
SVSS
AGND
8
Analog Volume
SPKP
41
INT/EXT_DET
+
MIX
9
ALC2
40
ALCS
SPPS
Speaker Block
-
SP1
VA
10
BEEPS
39
ND
8
Ω
11
SPPS
MOUT
38
SP0
BEEPH
BEEPH
12
37
PD
VOL
VOL
13
Headphone Amp
-
Clock
Divider
36
MCLK
HP
LOUT
BEEP
LO UT
HP
LOU T
LOUT
LOUT
LO UT
HP
HP
HP
HPP
HP
14
35
DAC
Audio I/F
Controller
34
DAC
LRCK
15
SHT
BCLK
LOU T
LOUT
HP
HP
16
Control Register
I/F
33
CCLK
LOUTP
17
18
19
20
LOUTP
21
22
HVCM
+
23
24
HPR
25
HPL
26
27
28
29
30
31
32
LOUT1
LIN
RIN
ROUT1
HVDD
VD
DGND
Signal Select
Power Management
Power Save
Figure 1. AK4560A Block Diagram
MS0028-E-00
-2-
+
MUTE
+
SDTO
SDTI
CDTIO
CS
2000/05
ASAHI KASEI
[AK4560A]
n
Ordering Guide
AK4560AVQ
AKD4560A
-20
∼
+85
°C
Evaluation Board
64pin LQFP (0.5mm pitch)
n
Pin layout
EX T _M IC _R
EX T _M IC _L
IN T_M IC _L
IN T_M IC _R
P R E _O _ R
50
P R E _N _R
PR E _ O _L
PR E _N _ L
64
63
62
61
60
59
58
57
56
55
54
53
52
51
EQ_P_L
EQ_O_L
HPF_P_L
HPF_O_L
MIC_IN_L
VCOM
VREF
AGND
VA
ROUT2
OPGR
LOUT2
OPGL
BEEP
SHT
MOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Top View
49
E Q _ N_ R
E Q _N _L
M PW R
M IC _B
MVCM
MVDD
MVSS
MRF
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
EQ_P_R
EQ_O_R
HPF_P_R
HPF_O_R
MIC_IN_R
SVDD
SVSS
INT_EXT_DET
SP1
ND
SP0
PD
MCLK
LRCK
BCLK
CCLK
R O UT 1
LO U T1
C D T IO
D G ND
HV C M
M U TE
HV D D
S D TO
SDTI
HP R
HP L
M IN
R IN
LIN
MS0028-E-00
-3-
CS
VD
2000/05
ASAHI KASEI
[AK4560A]
PIN/FUNCTION
No. Pin Name
Power Supply
6 VCOM
7 VREF
8 AGND
9 VA
22 HVCM
23 HVDD
27 VD
28 DGND
42 SVSS
43 SVDD
52 MPWR
55 MRF
56 MVCM
57 MVSS
58 MVDD
Operation Clock
29 SDTO
30 SDTI
34 BCLK
35 LRCK
36 MCLK
MIC Block
1 EQ_P_L
2 EQ_O_L
3 HPF_P_L
4 HPF_O_L
45 HPF_O_R
46 HPF_P_R
47 EQ_O_R
48 EQ_P_R
49 EQ_N_R
50 PRE_O_R
51 PRE_N_R
53 EXT_MIC_R
54 INT_MIC_R
59 INT_MIC_L
60 EXT_MIC_L
61 MIC_B
62 PRE_N_L
63 PRE_O_L
64 EQ_N_L
I/O
O
O
-
-
O
-
-
-
-
-
O
O
O
-
-
O
I
I
I
I
I
O
I
O
O
I
O
I
I
0
I
I
I
I
I
I
I
0
I
Function
Common Voltage Output Pin, 0.5 x VA
ADC, DAC Reference Level, 0.5 x VA
Analog Ground Pin
Analog Power Supply Pin, +2.8V
LINEOUT & HP-Amp Common Voltage Output Pin, 0.5 x HVDD
LINEOUT & HP-Amp Power Supply Pin, +4.5V
Digital Power Supply Pin, +2.8V
Digital Ground Pin
Speaker Amp Ground Pin
Speaker Amp Power Supply Pin, +4.0V
MIC Power Supply Pin, 2.5V@MVDD=3.9V, Idd=3mA(max)
MIC Power Supply Ripple Filter Pin
MIC Block Common Voltage Output Pin, 0.5 X MVDD
MIC Block Ground Pin
MIC Block Power Supply Pin
Audio Serial Data Output Pin
Audio Serial Data Input Pin
Audio Serial Data Clock Pin
Input/Output Channel Clock Pin
Master Clock Input Pin
Lch EQ-Amp Positive Input Pin
Lch EQ-Amp Output Pin
Lch HPF-Amp Positive Input Pin
Lch HPF Output Pin
Rch HPF Output Pin
Rch HPF-Amp Positive Input Pin
Rch EQ-Amp Output Pin
Rch EQ-Amp Positive Input Pin
Rch EQ-Amp Negative Input Pin
Rch Pre-Amp Output Pin
Rch Pre-Amp Negative Input Pin
External MIC Rch Input Pin
Internal MIC Rch Input Pin
Internal MIC Lch Input Pin
External MIC Lch Input Pin
MIC-Amp Bias Pin
Lch Pre-Amp Negative Input Pin
Lch Pre-Amp Output Pin
Lch EQ-Amp Negative Input Pin
Note: All input pins should not be left floating.
MS0028-E-00
-4-
2000/05
ASAHI KASEI
[AK4560A]
Control Data Interface
31 CDTIO
32
CS
33 CCLK
ALC1 Block
5 MIC_IN_L
18 LIN
20 RIN
44 MIC_IN_R
DAC
10 ROUT2
12 LOUT2
19 LOUT1
21 ROUT1
Analog Volume
11 OPGR
13 OPGL
Headphone Amp
24 HPR
25 HPL
Speaker Amp Block
16 MOUT
17 MIN
38 SP0
40 SP1
Other Functions
14 BEEP
15 SHT
26 MUTE
37
PD
39 ND
41 INT_EXT_DET
I/O
I
I
I
I
I
I
O
O
O
O
I
I
O
O
O
I
O
O
I
I
I
I
I
I
Control Data Input/Output Pin
Chip Select Pin
Control Clock Input Pin
Lch MIC Input Pin
Lch Line Input Pin
Rch Line Input Pin
Rch MIC Input Pin
Rch #2 Line Output Pin, -5.5dBV@VA=2.8V
Lch #2 Line Output Pin, -5.5dBV@VA=2.8V
Lch #1 Line Output Pin, +2dBV@VA=2.8V, VOL=+7.5dB
Rch #1 Line Output Pin, +2dBV@VA=2.8V, VOL=+7.5dB
Rch Analog Volume Input Pin
Lch Analog Volume Input Pin
Rch Headphone-Amp Output Pin
Lch Headphone-Amp Output Pin
Analog Mixing Output Pin
ALC2 Input Pin
Speaker Amp positive Output Pin
Speaker Amp negative Output Pin
Beep Signal Input Pin
Shutter Signal Input Pin
Mute Pin, “L”: Normal Operation, “H”: Mute
Power Down & Reset Pin, “L”: Power-down & Reset, “H”: Normal operation
Noise Decrease Pin, “L”: Disable, “H”: Enable
Internal /External MIC Detect Pin, “L”: Internal MIC, “H”: External MIC
Note: All input pins should not be left floating.
MS0028-E-00
-5-
2000/05
京公网安备 11010802033920号
EEWORLD
