AK5385BVSP AKM Semiconductor Inc, AK5385BVSP Datasheet

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AK5385BVSP

Manufacturer Part Number
AK5385BVSP
Description
IC ADC AUDIO STER 24BIT 28VSOP
Manufacturer
AKM Semiconductor Inc
Type
ADCr
Datasheet

Specifications of AK5385BVSP

Resolution (bits)
24 b
Sampling Rate (per Second)
8k ~ 216k
Data Interface
Serial
Voltage Supply Source
Analog and Digital
Voltage - Supply
3.3V, 5V
Operating Temperature
-10°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
28-SOIC (0.300", 7.50mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
974-1033-2
AK5385BVSP

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AK5385BVSP-E2
Manufacturer:
MICREL
Quantity:
4 500
ASAHI KASEI
The AK5385B is a 24bit, 192kHz sampling 2ch A/D converter for high-end audio system. The modulator in
the AK5385B uses the Enhanced Dual Bit architecture and the AK5385B realizes high accuracy and low
cost. The AK5385B performs 114dB dynamic range, so the device is suitable for AV-amp, AV recorder
and musical instruments. The AK5385B is available in 28pin VSOP and SOP package, utilizing less board
space.
MS0406-E-00
VREFR
VREFL
RIN+
RIN-
LIN+
LIN-
Sampling Rate: 8kHz ~ 216kHz
Full Differential Inputs
S/(N+D): 103dB
DR: 114dB
S/N: 114dB
High Performance Linear Phase Digital Anti-Alias filter
Digital HPF
Power Supply: 5V ± 5%(Analog), 3.0 ~ 5.25V(Digital)
Power Dissipation: 183mW (@fs=48kHz)
Package: 28pin SOP / 28pin VSOP
AK5383/AK5393/AK5394A Semi-Pin compatible
• Passband: 0~21.768kHz (@fs=48kHz)
• Ripple: 0.005dB
• Stopband: 100dB
Delta-Sigma
Delta-Sigma
Modulator
Modulator
VCOM
TEST
AVDD
GENERAL DESCRIPTION
OVF
Decimation
Decimation
AVSS
Filter
Filter
Block diagram
FEATURES
M/S DFS1 DFS0 CKS1 CKS0
DVDD
- 1 -
DVSS
HPF
HPF
BVSS
24Bit 192kHz ∆Σ ADC
Controller
Audio I/F
DIF
HPFE
PDN
AK5385B
LRCK
BICK
MCLK
SDTO
[AK5385B]
2005/08

Related parts for AK5385BVSP

AK5385BVSP Summary of contents

Page 1

ASAHI KASEI The AK5385B is a 24bit, 192kHz sampling 2ch A/D converter for high-end audio system. The modulator in the AK5385B uses the Enhanced Dual Bit architecture and the AK5385B realizes high accuracy and low cost. The AK5385B performs 114dB ...

Page 2

ASAHI KASEI Ordering Guide AK5385BVS AK5385BVF AKD5385B Pin Layout VREFL AVSS VCOM LIN+ LIN- CKS0 DVDD DVSS OVF PDN DIF M/S LRCK BICK MS0406-E-00 –10 ~ +70°C 28pin SOP (1.27mm pitch) –40 ~ +85°C 28pin VSOP (0.65mm pitch) Evaluation Board ...

Page 3

ASAHI KASEI Compatibility with AK5383/AK5394A Pin 1 Pin 2 Pin 3 Pin 6 Pin 9 Pin 11 Pin 12 Pin 16 Pin 18 Pin 20 Pin 26 Pin 27 Pin 28 fs MCLK at 48kHz MCLK at 96kHz MCLK at ...

Page 4

ASAHI KASEI Compare PCB layout example between AK5385B and AK5383 Analog Ground 0.1µ 10µ 1 VREFL VREFR 2 GNDL GNDR 3 VCOML VCOMR 0.22µ 4 AINL+ AINR+ 5 AINL- AINR- 6 ZCAL 3.0 ~ 5.25V 0.1µ AGND Digital ...

Page 5

ASAHI KASEI Compare PCB layout example between AK5385B and AK5394A Analog Ground 0.1µ 10µ 1 VREFL+ VREFR+ 10µ 2 VREFL- VREFR- 3 VCOML VCOMR 0.22µ 4 AINL+ AINR+ 5 AINL- AINR- 6 ZCAL VA 3.0 ~ 5.25V 0.1µ Digital 7 ...

Page 6

ASAHI KASEI No. Pin Name I/O Lch Voltage Reference Input Pin, AVDD 1 VREFL I Normally, connected to AVSS with a 10µF electrolytic capacitor and a 0.1µF ceramic capacitor. 2 AVSS - Analog Ground Pin 3 VCOM O Common Voltage ...

Page 7

ASAHI KASEI Handling of Unused Pin The unused I/O pins should be processed appropriately as below. Classification Pin Name LIN+, LIN− Analog RIN+, RIN− VREFL, VREFR OVF Digital TEST (AVSS, BVSS, DVSS=0V; Note 1) Parameter Power Supplies: Analog Digital |BVSS ...

Page 8

ASAHI KASEI (Ta=25°C; AVDD=5.0V, DVDD=3.3V; AVSS=BVSS=DVSS=0V; VREFL=VREFR=AVDD; fs=48kHz, 96kHz, 192kHz; BICK=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 Analog Input Characteristics: Resolution Input ...

Page 9

ASAHI KASEI FILTER CHARACTERISTICS (fs=48kHz) (Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V; DFS1 = “L”, DFS0 = “L”) Parameter ADC Digital Filter (Decimation LPF): −0.005dB Passband (Note 8) −0.02dB −0.06dB −6.0dB Stopband Passband Ripple Stopband Attenuation Group Delay (Note 9) ...

Page 10

ASAHI KASEI FILTER CHARACTERISTICS (fs=192kHz) (Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V; DFS1 = “H”, DFS0 = “L”) Parameter ADC Digital Filter (Decimation LPF): −0.005dB Passband (Note 8) −0.02dB −0.06dB −6.0dB Stopband Passband Ripple Stopband Attenuation Group Delay (Note 9) ...

Page 11

ASAHI KASEI (Ta=25°C; AVDD=4.75 ∼ 5.25V; DVDD=3.0 ∼ 5.25V; C Parameter Master Clock Timing Frequency Pulse Width Low Pulse Width High LRCK Frequency Normal Speed Mode Double Speed Mode Quad Speed Mode Duty Cycle Slave mode Master mode Audio Interface ...

Page 12

ASAHI KASEI Timing Diagram MCLK tCLKH LRCK BICK tBCKH LRCK tBLR BICK tLRS SDTO MS0406-E-00 1/fCLK tCLKL 1/fs tBCK tBCKL Clock Timing tLRB tBSD Audio Interface Timing (Slave mode [AK5385B] VIH VIL VIH VIL VIH VIL VIH ...

Page 13

ASAHI KASEI LRCK tMBLR BICK SDTO PDN SDTO PDN MS0406-E-00 dBCK tBSD Audio Interface Timing (Master mode) tPDV tPD Power Down & Reset Timing - 13 - [AK5385B] 50%DVDD 50%DVDD 50%DVDD VIH VIL 50%DVDD VIL 2005/08 ...

Page 14

ASAHI KASEI System Clock MCLK (256fs/384fs/512fs), BICK (48fs∼) and LRCK (fs) clocks are required in slave mode. The LRCK clock input must be synchronized with MCLK, however the phase is not critical. Table 1 shows the relationship of typical sampling ...

Page 15

ASAHI KASEI Audio Interface Format Two kinds of data formats can be chosen with the DIF pin (Table 4). In both modes, the serial data is in MSB first, 2’s complement format. The SDTO is clocked out on the falling ...

Page 16

ASAHI KASEI Digital High Pass Filter The ADC has a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF is 1.0Hz (@fs=48kHz) and scales with sampling rate (fs). HPF is controlled by HPFE pin. If ...

Page 17

ASAHI KASEI Figure 4 shows the system connection diagram. An evaluation board is available which demonstrates application circuits, the optimum layout, power supply arrangements and measurement results. 10µ 0.22µ Digital Supply 3.0 ~ 5.25V 10µ Reset Note: - AVSS, BVSS ...

Page 18

ASAHI KASEI 1. Grounding and Power Supply Decoupling The AK5385B requires careful attention to power supply and grounding arrangements. Alternatively if AVDD and DVDD are supplied separately, the power up sequence is not critical. AVSS, BVSS and DVSS of the ...

Page 19

ASAHI KASEI 4. External Analog Circuit Examples Figure 6 shows an input buffer circuit example 1. This is a full-differential input buffer circuit with an inverted-amp (gain: −10dB). The capacitor of 10nF between LIN+/− (RIN+/−) decreases the clock feed through ...

Page 20

ASAHI KASEI 5. Measurement Example Figure 8 shows the S/(N+D) vs. VREF capacitor that is connected between VREFL/R pins and AVSS pin with the 0.1µF capacitor in parallel. X-AXIS is the capacity for VREF; Y-AXIS is S/(N+D). [Measurement Condition] - ...

Page 21

ASAHI KASEI 28pin VSOP (Unit: mm) *9.8±0.2 0.675 28 1 0.22±0.1 Seating Plane NOTE: Dimension "*" does not include mold flash. Material & Lead finish Package molding compound: Lead frame material: Lead frame surface treatment: MS0406-E-00 PACKAGE (AK5385BVF ...

Page 22

ASAHI KASEI 28pin SOP (Unit: mm) 1.095TYP 18.7 ± 0.3 1.27 0.10 0.4 ± 0.1 Material & Lead finish Package molding compound: Lead frame material: Lead frame surface treatment: MS0406-E-00 PACKAGE (AK5385BVS) 0.12 M Epoxy Cu Solder (Pb free) plate ...

Page 23

ASAHI KASEI XXXB : Lot number (X : Digit number Alpha character) YYYYC : Assembly date (Y : Digit number Alpha character) MS0406-E-00 MARKING (AK5385BVF) AKM AK5385BVF XXXBYYYYC XXXBYYYYC Date code identifier - 23 - [AK5385B] ...

Page 24

ASAHI KASEI XXXB : Lot number (X : Digit number Alpha character) YYYYC : Assembly date (Y : Digit number Alpha character) Date (YY/MM/DD) Revision 05/08/10 00 • These products and their specifications are subject to ...

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