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PDF AK4618 Data sheet ( Hoja de datos )

Número de pieza AK4618
Descripción 192kHz 24-bit 6ch/12ch Audio CODEC
Fabricantes AKM　
Logotipo AKM Logotipo



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[AK4618]
AK4618
192kHz 24-bit 6ch/12ch Audio CODEC with Microphone Interface
GENERAL DESCRIPTION
The AK4618 is a single chip audio CODEC that includes 6-channel ADC and 12-channel DAC. The
6-channel ADC supports differential/single-ended analog inputs. The high performance 12-channel DAC
integrates full-range digital volume control and achieves 106dB dynamic range. A car audio system can
be easily designed with an audio DSP and the AK4618. The AK4618 is housed in a space saving 48-pin
LQFP package.
FEATURES
6ch ADC
- Sampling Frequency: 8KHz~48KHz
- ADC S/N: 98dB, S/ (N+D): 87dB
- I/F format: MSB justified, I2S or TDM
12ch DAC
- Sampling Frequency: 8KHz~192KHz
- DAC S/N: 106dB, S/ (N+D): 92dB
- I/F format: MSB justified, LSB justified (16bit, 24bit), I2S or TDM
- Channel Independent Digital Attenuator (Linear 256 steps)
Microphone Interface
- Single-ended/Differential Input Select
- Programmable Gain (+33dB ~ +15dB and 0dB, 3dB step)
- Low Noise Microphone Bias
Master / Slave mode
Master clock
- Slave mode: 256fs, 384fs or 512fs (Normal Speed Mode: fs=8kHz 48kHz)
256fs
(Double Speed Mode: fs=64kHz 96kHz)
128fs
(Quad Speed Mode: fs=128kHz 192kHz)
- Master mode: 256fs, 384fs or 512fs(Normal Speed Mode: fs=8kHz 48kHz)
256fs
(Double Speed Mode: fs=64kHz 96kHz)
μP I/F: I2C
Power supply
128fs
(Quad Speed Mode: fs=128kHz 192kHz)
- Analog Power Supply: 3.0V ~ 3.6V (typ.3.3V)
- Digital I/O Power Supply: 3.0V ~ 3.6V (typ.3.3V)
Operating temperature range: -40C ~ 105C
Package: 48pin LQFP
015000617-E-00
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2015/01

1 page




AK4618 pdf
27 ROUT5
O Rch Analog Output 5 Pin
28 LOUT5
O Lch Analog Output 5 Pin
29 ROUT4
O Rch Analog Output 4 Pin
30 LOUT4
O Lch Analog Output 4 Pin
31 ROUT3
O Rch Analog Output 3 Pin
32 LOUT3
O Lch Analog Output 3 Pin
33 ROUT2
O Rch Analog Output 2 Pin
34 LOUT2
O Lch Analog Output 2 Pin
35 ROUT1
O Rch Analog Output 1 Pin
36 LOUT1
O Lch Analog Output 1 Pin
37 AVDD2
- Analog Power Supply Pin, 3.0V3.6V
38 VSS2
- Ground Pin, 0V
39 TVDD
- Digital Power Supply Pin, 3.0V3.6V
40 VSS3
- Ground Pin, 0V
41 REGO
O
Regulator Output Pin
This pin should be connected to ground with 1.0uF.
42 SDTO1
O Audio Serial Data Output Pin1
43 SDTO2
O Audio Serial Data Output Pin2
44 SDTO3
45 SDA
46 SCL
O Audio Serial Data Output Pin3
I/O Control Data Input Pin in I2C Bus Serial control mode
I Control Data Clock Pin in I2C Bus serial control mode
47 MCLK
I External Master Clock Input Pin
48 BICK
I/O Audio Serial Data Clock Pin
Note 1. All digital input pins must not be allowed to float.
[AK4618]
015000617-E-00
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2015/01

5 Page





AK4618 arduino
[AK4618]
FILTER CHARACTERISTICS (fs=96kHz)
(Ta= -40 +105C; AVDD1, AVDD2= TVDD=3.03.6V)
Parameter
Symbol
DAC Digital Filter (LPF): Sharp roll-off mode
(DEM=OFF; SD_DA bit=“0” ; SLOW bit=“0”)
Min.
Typ.
Passband
Stopband
(Note 8)
±0.06dB
6.0dB
PB
SB
0-
- 48.0
52.4 -
Passband Ripple
Stopband Attenuation
PR -0.06
SA 52
-
Group Delay Distortion 0 ~ 40.0kHz
GD
-
0
Group Delay
(Note 10)
GD
-
19.3
DAC Digital Filter + Analog Filter:
Frequency Response 0 ~ 40.0kHz (Note 11)
FR
-
-0.3
DAC Digital Filter (LPF): Slow roll-off mode
(DEM=OFF; SD_DA bit=“0” ; SLOW bit=“1”)
Passband
(Note 9) ±0.06dB
6.0dB
PB
0
- 45.0
Stopband
SB 80.2
Passband Ripple
PR -4.0
Stopband Attenuation
Group Delay Distortion 0 ~ 40.0kHz
Group Delay
(Note 10)
SA
GD
GD
50
0
6.8
DAC Digital Filter + Analog Filter:
Frequency Response 0 ~ 40.0kHz (Note 11)
FR
-4.2
DAC Digital Filter (LPF): Short delay Sharp roll-off mode
(DEM=OFF; SD_DA bit=“1”; SLOW bit=“0”)
Passband
(Note 8) ±0.06dB
PB
6.0dB
Stopband
SB
0
-
52.4
-
48.0
-
Passband Ripple
Stopband Attenuation
Group Delay Distortion 0 ~ 40.0kHz
Group Delay
(Note 10)
PR
SA
GD
GD
-0.06
52
-
-
-
-
6.2
DAC Digital Filter + Analog Filter:
Frequency Response 0 ~ 40.0kHz (Note 11)
FR
-0.3
DAC Digital Filter (LPF): Short delay Slow roll-off mode
(DEM=OFF; SD_DA bit=“1” ; SLOW bit=“1”)
Passband
(Note 9) ±0.06dB
PB
6.0dB
Stopband
SB
0
-
80.2
-
45.0
-
Passband Ripple
Stopband Attenuation
PR -4.0
SA 50
-
Group Delay Distortion 0 ~ 40.0kHz
Group Delay
(Note 10)
GD
GD
-
-
-
5.8
DAC Digital Filter + Analog Filter:
Frequency Response 0 ~ 40.0kHz (Note 11)
FR
-
-4.2
Max.
43.6
-
-
+0.06
-
-
-
-
19.6
-
+0.06
43.6
-
-
+0.06
-
1.7
-
19.6
-
-
+0.06
-
0.5
-
-
Unit
kHz
kHz
kHz
dB
dB
1/fs
1/fs
dB
kHz
kHz
kHz
dB
dB
1/fs
1/fs
dB
kHz
kHz
kHz
dB
dB
1/fs
1/fs
dB
kHz
kHz
kHz
dB
dB
1/fs
1/fs
dB
015000617-E-00
- 11 -
2015/01

11 Page







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