2ch DAC. AK4385 Datasheet

AK4385 DAC. Datasheet pdf. Equivalent

AK4385 Datasheet
Recommendation AK4385 Datasheet
Part AK4385
Description 108dB 192kHz 24-Bit 2ch DAC
Feature AK4385; [AK4385] AK4385 108dB 192kHz 24-Bit 2ch ΔΣ DAC GENERAL DESCRIPTION The AK4385 offers the perfect m.
Manufacture AKM
Datasheet
Download AK4385 Datasheet




AKM AK4385
[AK4385]
AK4385
108dB 192kHz 24-Bit 2ch ΔΣ DAC
GENERAL DESCRIPTION
The AK4385 offers the perfect mix for cost and performance based audio systems. Using AKM's multi bit
architecture for its modulator the AK4385 delivers a wide dynamic range while preserving linearity for
improved THD+N performance. The AK4385 has full differential SCF outputs, removing the need for AC
coupling capacitors and increasing performance for systems with excessive clock jitter. The 24 Bit word
length and 192kHz sampling rate make this part ideal for a wide range of applications including
DVD-Audio. The AK4385 is offered in a space saving 16pin TSSOP package.
FEATURES
† Sampling Rate Ranging from 8kHz to 192kHz
† 128 times Oversampling (Normal Speed Mode)
† 64 times Oversampling (Double Speed Mode)
† 32 times Oversampling (Quad Speed Mode)
† 24-Bit 8 times FIR Digital Filter
† On chip SCF
† Digital de-emphasis for 32k, 44.1k and 48kHz sampling
† Soft mute
† Digital Attenuator (Linear 256 steps)
† I/F format: 24-Bit MSB justified, 24/20/16-Bit LSB justified or I2S
† Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode)
128fs, 192fs, 256fs or 384fs (Double Speed Mode)
128fs, 192fs (Quad Speed Mode)
† THD+N: -94dB
† Dynamic Range: 108dB
† High Tolerance to Clock Jitter
† Power supply: 4.75 to 5.25V
† Very Small Package: 16pin TSSOP (6.4mm x 5.0mm)
† AK4381 Pin Compatible
MCLK
CSN
CCLK
CDTI
LRCK
BICK
SDTI
µP
Interface
De-emphasis
Control
Clock
Divider
Audio
Data
Interface
8X
Interpolator
8X
Interpolator
ΔΣ
Modulator
ΔΣ
Modulator
SCF
SCF
VDD
VSS
DZFL
DZFR
AOUTL+
AOUTL-
AOUTR+
AOUTR-
PDN
MS0246-E-02
-1-
2010/09



AKM AK4385
Ordering Guide
AK4385ET
AK4385VT
AKD4385
Pin Layout
-20 +85°C
16pin TSSOP (0.65mm pitch)
-40 +85°C
16pin TSSOP (0.65mm pitch)
Evaluation Board for AK4385
MCLK
BICK
SDTI
LRCK
PDN
CSN
CCLK
CDTI
1
2
3
4
5
6
7
8
Top
View
16 DZFL
15 DZFR
14 VDD
13 VSS
12 AOUTL+
11 AOUTL-
10 AOUTR+
9 AOUTR-
[AK4385]
PIN/FUNCTION
No. Pin Name
I/O Function
1 MCLK
I Master Clock Input Pin
An external TTL clock should be input on this pin.
2 BICK
I Audio Serial Data Clock Pin
3 SDTI
I Audio Serial Data Input Pin
4 LRCK
I L/R Clock Pin
5 PDN
I Power-Down Mode Pin
When at “L”, the AK4385 is in the power-down mode and is held in reset.
The AK4385 must be reset once upon power-up.
6 CSN
I Chip Select Pin
7 CCLK
I Control Data Input Pin
8 CDTI
I Control Data Input Pin in serial mode
9 AOUTR-
O Rch Negative Analog Output Pin
10 AOUTR+
O Rch Positive Analog Output Pin
11 AOUTL-
O Lch Negative Analog Output Pin
12 AOUTL+
O Lch Positive Analog Output Pin
13 VSS
- Ground Pin
14 VDD
- Power Supply Pin
15 DZFR
O Rch Data Zero Input Detect Pin
16 DZFL
O Lch Data Zero Input Detect Pin
Note: All input pins should not be left floating.
MS0246-E-02
-2-
2010/09



AKM AK4385
[AK4385]
ABSOLUTE MAXIMUM RATINGS
(VSS=0V; Note 1)
Parameter
Symbol
min
Power Supply
VDD
-0.3
Input Current (any pins except for supplies)
IIN
-
Input Voltage
VIND
-0.3
Ambient Operating Temperature AK4385ET
(Powered applied)
AK4385VT
Ta
Ta
-20
-40
Storage Temperature
Tstg -65
Note: 1. All voltages with respect to ground.
max
6.0
±10
VDD+0.3
85
85
150
Units
V
mA
V
°C
°C
°C
WARNING: Operation at or beyond these limits may results in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
(VSS=0V; Note 1)
Parameter
Power Supply
RECOMMENDED OPERATING CONDITIONS
Symbol min typ
VDD
4.75 5.0
max Units
5.25 V
*AKM assumes no responsibility for the usage beyond the conditions in this datasheet.
MS0246-E-02
-3-
2010/09







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