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PDF AK5384 Data sheet ( Hoja de datos )
| Número de pieza | AK5384 | |
| Descripción | 107dB 24-Bit 96kHz 4-Channel ADC | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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ASAHI KASEI
[AK5384]
AK5384
107dB 24-Bit 96kHz 4-Channel ADC
GENERAL DESCRIPTION
The AK5384 is a 4-channel A/D Converter with wide sampling rate of 8kHz ∼ 96kHz and is suitable for
Multi-channel audio system. The AK5384 achieves high accuracy and low cost by using Enhanced dual
bit ∆Σ techniques. The AK5384 supports master mode and TDM format. Therefore, the AK5384 is
suitable for multi-channel audio system.
FEATURES
o 4-Channel ∆Σ ADC
o Differential Inputs
o Digital HPF for DC-Offset Cancel
o S/(N+D): 100dB@5V for 48kHz
o DR:
107dB@5V for 48kHz
o S/N:
107dB@5V for 48kHz
o Sampling Rate Ranging from 8kHz to 96kHz
o Master Clock:
256fs/384fs/512fs/768fs (∼ 48kHz)
256fs/384fs (∼ 96kHz)
o TTL Digital Input Level
o Output format: 24bit MSB justified, I2S or TDM
o Cascade TDM Interface
o Master & Slave Mode
o Overflow Flag
o Power Supply: 4.75 to 5.25V
o Power Supply for output buffer: 3.0 to 5.25V
o Ta = −40 ∼ 85°C
o 28pin VSOP
AVDD AVSS DVDD DVSS
TVDD
LIN1+
LIN1-
RIN1+
RIN1-
LIN2+
LIN2-
RIN2+
RIN2-
∆Σ
Modulator
∆Σ
Modulator
∆Σ
Modulator
∆Σ
Modulator
Decimation
Filter
Decimation
Filter
Decimation
Filter
Decimation
Filter
Audio
Interface
VCOM
Voltage Reference
OVF PDN
Clock Divider
CKS
LRCK
BICK
SDTO1
SDTO2
TDMIN
M/S
DIF
TDM0
TDM1
MCLK
MS0225-E-00
-1-
2003/05
1 page  
ASAHI KASEI
[AK5384]
ANALOG CHARACTERISTICS
(Ta=25°C; AVDD=DVDD=TVDD=5.0V; AVSS=DVSS=0V; fs=48kHz, 96kHz; I/F format=Mode 0;
Signal Frequency=1kHz; Measurement frequency=20Hz ∼ 20kHz at fs=48kHz, 40Hz ∼ 40kHz at fs=96kHz;
unless otherwise specified)
Parameter
min typ max
ADC Analog Input Characteristics:
Resolution
24
S/(N+D)
(−1dBFS)
fs=48kHz
88 100
fs=96kHz
82 94
DR
(−60dBFS)
fs=48kHz, A-weighted
100
107
fs=96kHz
94 102
S/N
fs=48kHz, A-weighted
100
107
fs=96kHz
94 102
Interchannel Isolation
90 110
DC Accuracy:
Interchannel Gain Mismatch
Gain Drift
Input Voltage
Input Resistance
Power Supply Rejection
(Note 4)
(Note 5)
±2.7
18
11
0.1 0.5
100 150
±2.9 ±3.1
26
16
50 -
Power Supplies
Power Supply Current (AVDD+DVDD+TVDD)
Normal Operation (PDN pin = “H”, fs=48kHz) (Note 6)
43 65
Normal Operation (PDN pin = “H”, fs=96kHz) (Note 6)
55 83
Power-down mode (PDN pin = “L”)
(Note 7)
10 100
Units
Bits
dB
dB
dB
dB
dB
dB
dB
dB
ppm/°C
Vpp
kΩ
kΩ
dB
mA
mA
µA
Note 4. This value is the full scale (0dB) of the input voltage. This voltage is input to LIN(RIN)+ and LIN(RIN)− pin,
and is proportional to AVDD. (Vin = 0.58 × AVDD)
Note 5. PSR is applied to AVDD, DVDD and TVDD with 1kHz, 50mVpp.
Note 6. AVDD=28mA; DVDD=15mA@48kHz&5V, DVDD=26mA@96kHz&5V(typ).
Note 7. All digital input pins are fixed to DVDD or DVSS.
MS0225-E-00
-5-
2003/05
5 Page 
ASAHI KASEI
[AK5384]
LRCK
BICK
SDTO
tMBLR
dBCK
tBSD
Audio Interface Timing (Master mode)
PDN
tPDV
SDTO
PDN
tPD
Power Down & Reset Timing
Note: SDTO shows SDTO1 and SDTO2.
50%TVDD
50%TVDD
50%TVDD
VIH
VIL
50%TVDD
VIL
MS0225-E-00
- 11 -
2003/05
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet AK5384.PDF ] | |
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