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PDF AK5356 Data sheet ( Hoja de datos )
| Número de pieza | AK5356 | |
| Descripción | Low Power 20-Bit ADC | |
| Fabricantes | Asahi Kasei Microsystems | |
| Logotipo |  |
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ASAHI KASEI
[AK5356]
AK5356
Low Power 20-Bit ADC with MIC-Amp & PGA
GENERAL DESCRIPTION
The AK5356 is a low voltage 20bit A/D converter for digital audio system. The AK5356 also includes
microphone amplifier and analog input PGA, making it suitable for microphone applications or low-input
signal levels. As digital power supply of the AK5356 corresponds to 1.8V, the interface with
microprocessor can operate at low voltage. The AK5356 is housed in a space-saving 28-pin QFN
package.
FEATURES
1. MIC Block
• MIC Power
• Pre-Amplifier (+13dB / +18dB / +28dB / +33dB)
2. 20bit 2ch ADC
• 2-Input Stereo Selector
• Analog Input PGA: +28dB ∼ - 52dB, Mute
• S/(N+D): 84dB
• DR, S/N: 89dB
• Monaural Mixing
• Digital HPF for DC-offset cancellation (fc=3.4Hz@fs=44.1kHz)
3. 3-wire Serial Control I/F
4. Master Clock: 256fs/384fs
5. Audio Data Format: MSB First, 2’s compliment
• 16/20bit MSB justified or 16/20bit I2S compatible
6. Power Supply Voltage
• AVDD: 2.0 ∼ 3.3V
• MVDD: 2.4 ∼ 3.3V
• DVDD: 1.8 ∼ 3.3V
7. Power Supply Current
• MIC Block: 3.4mA
• IPGA+ADC: 6mA
8. Ta = - 40 ∼ 85°C
9. Package: 28pin QFN
MS0171-E-00
-1-
2002/08
1 page  
ASAHI KASEI
[AK5356]
ABSOLUTE MAXIMUM RATINGS
(AVSS, DVSS, MVSS=0V; Note 1)
Parameter
Symbol
min
Power Supply
Analog
AVDD
-0.3
MIC
MVDD
-0.3
Digital
DVDD
-0.3
| DVSS – AVSS | (Note 2)
∆GND1
-
| MVSS – AVSS | (Note 2)
∆GND2
-
Input Current (Any Pin Except Supplies)
IIN -
Analog Input Voltage (Note 3)
VINA1
-0.3
(Note 4)
VINA2
-0.3
Digital Input Voltage (Note 5)
VIND
-0.3
Ambient Temperature (power applied)
Ta -40
Storage Temperature
Tstg -65
Note 1. All voltages with respect to ground.
Note 2. AVSS, DVSS and MVSS must be connected to the same analog ground plane.
Note 3. MICL, MICR, LIN and RIN pins
Note 4. PREL, PRER, PRENL and PRENR pins
Note 5. MCLK, BCLK, LRCK, CSN, CCLK, CDTI and PDN pins
max
4.6
4.6
4.6
0.3
0.3
±10
AVDD+0.3
MVDD+0.3
DVDD+0.3
85
150
WARNING: Operation at or beyond these limits may results in permanent damage to the device.
Normal operation is not guaranteed at these extremes.
Units
V
V
V
V
V
mA
V
V
V
°C
°C
RECOMMENDED OPERATING CONDITIONS
(AVSS, DVSS, MVSS=0V; Note 1)
Parameter
Symbol
min
typ
Power Supply Analog
AVDD
2.0
2.5
MIC
MVDD
2.4
2.7
Digital
DVDD
1.8
2.5
Note 1. All voltages with respect to ground
max
3.3
3.3
AVDD
WARNING: AKM assumes no responsibility for the usage beyond the conditions in this data sheet.
Units
V
V
V
MS0171-E-00
-5-
2002/08
5 Page 
ASAHI KASEI
CSN
CCLK
CDTI
D3
PDN
SDTO
[AK5356]
tCSW
tCSH
VIH
VIL
VIH
VIL
D2 D1 D0
Figure 5. WRITE Data Input Timing
tPW
tPWV
Figure 6. Power Down & Reset Timing
VIH
VIL
VIL
50%DVDD
MS0171-E-00
- 11 -
2002/08
11 Page | ||
| Páginas | Total 22 Páginas | |
| PDF Descargar | [ Datasheet AK5356.PDF ] | |
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