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ASAHI KASEI
[AK5386]
AK5386
Single-ended 24-Bit 192kHz ∆Σ ADC
GENERAL DESCRIPTION
The AK5386 is a stereo A/D Converter with wide sampling rate of 8kHz 216kHz and is suitable for
consumer to professional audio system. The AK5386 achieves high accuracy and low cost by using
Enhanced dual bit ∆Σ techniques. The AK5386 requires no external components because the analog
inputs are single-ended. The audio interface has two formats (MSB justified, I2S) and can correspond to
various systems like DVD Recorder, AV Receiver, PC Sound card and Music Instrument recording.
FEATURES
† Single-ended Input
† Digital HPF for DC-Offset cancel
† S/(N+D): 96dB
† DR:
110dB
† S/N:
110dB
† Linear Phase Digital Anti-Alias Filtering
Passband: 0 21.768kHz (@ fs=48kHz)
Passband Ripple: ±0.005dB
Stopband Attenuation: 80dB
† Master Clock: 512fs/768fs (Normal Speed)
256fs/384fs (Double Speed)
128fs/192fs (Quad Speed)
† Sampling Frequency:
Normal Speed: 8kHz 54kHz (512fs)
8kHz 48kHz
(768fs)
Double Speed: 54kHz 108kHz (256fs)
48kHz 96kHz (384fs)
Quad Speed: 108kHz 216kHz (128fs)
96kHz 192kHz (192fs)
† Master / Slave Mode
† Audio Interface: 24bit MSB justified / I2S selectable
† Input level: CMOS
† Power Supply:
Analog: 4.5 5.5V
Digital: 2.7 3.6V (Normal Speed)
3.0 3.6V (Double Speed, Quad Speed)
† Ta = 40 85°C
† Small 16pin TSSOP Package
† AK5357/58/59/81 Pin-compatible
MS0579-E-00
-1-
2006/12

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ASAHI KASEI
[AK5386]
VA AGND VD DGND
AINL
AINR
VCOM
∆Σ
Modulator
∆Σ
Modulator
Voltage Reference
Decimation
Filter
Decimation
Filter
MCLK
Clock Divider
Serial I/O
Interface
LRCK
SCLK
SDTO
CKS2 CKS1 CKS0
PDN
Block Diagram
DIF
„ Compatibility with AK5357, AK5358, AK5359, AK5381 and AK5386
fs
S/(N+D)
DR
MCLK @ 48kHz
VIH @ TTL Level
Mode
VA(Analog Supply)
VD (Digital Supply)
HPF Disable
Operating
Temperature
AK5357
4kHz to 96kHz
88dB
102dB
256/512/384/768fs
2.2V
2.7 to 5.5V
2.7 to 5.5V
Available
ET: 20+85°C
VT: 40+85°C
AK5358
8kHz to 96kHz
92dB
102dB
256/512/384/768fs
2.2V
4.5 to 5.5V
2.7 to 5.5V
Not Available
ET: 20+85°C
AK5381
4kHz to 96kHz
96dB
106dB
256/512/384/768fs
2.4V
4.5 to 5.5V
2.7 to 5.5V
3.0 to 5.5V@
fs=96kHz
Available
ET: 20+85°C
VT: 40+85°C
XT: 40+85°C
AK5359
8kHz to 216kHz
94dB
102dB
256/512/384/768fs
Not Available
4.5 to 5.5V
2.7 to 5.5V
Available
ET: 20+85°C
VT: 40+85°C
AK5386
8kHz to 216kHz
96dB
110dB
512/768fs
Not Available
4.5 to 5.5V
2.7 to 3.6V
3.0 to 3.6V @
fs=96k, 192kHz
Available
VT: 40+85°C
MS0579-E-00
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2006/12

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ASAHI KASEI
„ Ordering Guide
AK5386VT
AKD5386
„ Pin Layout
AINR
AINL
CKS1
VCOM
AGND
VA
VD
DGND
[AK5386]
40 +85°C
16pin TSSOP (0.65mm pitch)
Evaluation Board for AK5386
1 16 CKS0
2 15 CKS2
3 14 DIF
4
Top View
13 PDN
5 12 SCLK
6 11 MCLK
7 10 LRCK
8 9 SDTO
PIN / FUNCTION
No. Pin Name
I/O
Function
1 AINR
I Rch Analog Input Pin
2 AINL
I Lch Analog Input Pin
3 CKS1
I Mode Select 1 Pin
4 VCOM
Common Voltage Output Pin, VA/2
O
Bias voltage of ADC input.
5 AGND
- Analog Ground Pin
6 VA
- Analog Power Supply Pin, 5V
7 VD
- Digital Power Supply Pin, 3.3V
8 DGND
- Digital Ground Pin
9 SDTO
Audio Serial Data Output Pin
O
“L” Output at Power-down mode.
10 LRCK
Output Channel Clock Pin
I/O
“L” Output in Master Mode at Power-down mode.
11 MCLK
I Master Clock Input Pin
12 SCLK
Audio Serial Data Clock Pin
I/O
“L” Output in Master Mode at Power-down mode.
Power Down & Reset Mode Pin
13 PDN
I “H”: Power up, “L”: Power down & Reset
The AK5386 must be reset once upon power-up.
14 DIF
Audio Interface Format Pin
I “H”: 24bit I2S Compatible, “L”: 24bit MSB justified
15 CKS2
I Mode Select 2 Pin
16 CKS0
I Mode Select 0 Pin
Note: Do not allow all digital input pins except for analog input pins (AINL and AINR pins) to float.
MS0579-E-00
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2006/12

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ASAHI KASEI
[AK5386]
„ Handling of Unused Pin
The unused input pins should be processed appropriately as below.
Classification
Analog
Pin Name
AINL
AINR
Setting
This pin should be open.
This pin should be open.
ABSOLUTE MAXIMUM RATINGS
(AGND, DGND=0V; Note 1)
Parameter
Symbol
min
Power Supplies: Analog
VA 0.3
(Note 2)
Digital
VD 0.3
Input Current, Any Pin Except Supplies
IIN -
Analog Input Voltage (AINL, AINR, CKS1 pins)
VINA
0.3
Digital Input Voltage (Note 3)
VIND
0.3
Ambient Temperature (powered applied)
Ta -40
Storage Temperature
Tstg 65
Note 1. All voltages with respect to ground.
Note 2. AGND and DGND must be connected to the same analog ground plane.
Note 3. DIF, PDN, SCLK, MCLK, LRCK, CKS0 and CKS2 pins
max
6.0
6.0
±10
VA+0.3
VD+0.3
85
150
WARNING: Operation at or beyond these limits may result in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Units
V
V
mA
V
V
°C
°C
RECOMMENDED OPERATING CONDITIONS
(AGND, DGND=0V; Note 1)
Parameter
Symbol
min
typ
Power Supplies Analog
VA 4.5
5.0
(Note 4) Digital: Normal Speed
VD 2.7
3.3
Double/Quad Speed
VD
3.0
3.3
Note 4. The power up sequence between VA and VD is not critical.
max Units
5.5 V
3.6 V
3.6 V
WARNING: AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0579-E-00
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2006/12

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ASAHI KASEI
[AK5386]
ANALOG CHARACTERISTICS
(Ta=25°C; VA=5.0V, VD=3.3V; AGND=DGND=0V; fs=48kHz, 96kHz, 192kHz; SCLK=64fs; Signal
Frequency=1kHz; 24bit Data; Measurement frequency=20Hz 20kHz at fs=48kHz, 40Hz 40kHz at fs=96kHz,
40Hz 40kHz at fs=192kHz; unless otherwise specified)
Parameter
min typ max Units
ADC Analog Input Characteristics:
Resolution
Input Voltage
(Note 5)
S/(N+D)
fs=48kHz
1dBFS
BW=20kHz
60dBFS
fs=96kHz
1dBFS
BW=40kHz
60dBFS
fs=192kHz
1dBFS
BW=40kHz
60dBFS
DR (60dBFS with A-weighted)
S/N (A-weighted)
Input Resistance
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Power Supply Rejection
(Note 6)
2.7
86
-
86
-
-
-
102
102
4
95
-
-
-
24 Bits
3.0 3.3 Vpp
96 - dB
47 - dB
92 - dB
42 - dB
90 - dB
42 - dB
110 - dB
110 - dB
6 - k
115 - dB
0.1 0.5 dB
100 - ppm/°C
50 - dB
Power Supplies
Power Supply Current
Normal Operation (PDN pin = “H”)
VA - 20 30 mA
VD (fs=48kHz)
- 7 11 mA
VD (fs=96kHz)
- 10 15 mA
VD (fs=192kHz)
- 10 15 mA
Power down mode (PDN pin = “L”)
(Note 7)
VA+VD
- 10 100 µA
Note 5. This value is the full scale (0dB) of the input voltage. Input voltage is proportional to VA voltage.
Vin = 0.6 x VA (Vpp).
Note 6. PSR is applied to VA and VD with 1kHz, 50mVpp.
Note 7. All digital input pins are held VD or DGND.
MS0579-E-00
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2006/12