ak4620b AKM Semiconductor, Inc., ak4620b Datasheet - Page 8

• Manufacturer Part Number: ak4620b
• Description: 24-bit 192khz Audio Codec With Ipga
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Note 6. Full scale (0dB) of the input voltage at PGA=0dB.
Note 7. These values become smaller when a gain of IPGA is large.
Note 8. PSR is applied to VA, VD, VT with 1kHz, 50mVpp. VREF pin is held a constant voltage.
Note 9. Full scale (0dB) of the input voltage at 0dB. This voltage is proportional to VREF.
(Ta=25°C; VA=5V, VD=3.3V, VT=5V; AGND=DGND=0V; VREF=VA; fs=44.1kHz; Signal Frequency =1kHz; 24bit
Data; Measurement frequency=20Hz ∼ 20kHz at fs=44.1kHz, 40Hz ∼ 40kHz at fs=96kHz, 40Hz ∼ 40kHz at fs=192kHz;
unless otherwise specified)
DAC Analog Output Characteristics:
Parameter
Resolution
Dynamic Characteristics
S/(N+D)
Dynamic Range (−60dBFS with A-weighted) (Note 10, Note 11)
S/N
Interchannel Isolation (1kHz)
DC Accuracy
Interchannel Gain Mismatch
Gain Drift
Output Voltage
Load Capacitance
Load Resistance
Note 10. 100dB at 16bit data and 114dB at 20bit data.
Note 11. By Figure 19. External LPF Circuit Example 2 for PCM.
Note 12. S/N does not depend on input bit length.
Note 13. The voltage on VREF is held +5V externally.
Note 14. Full-scale voltage(0dB). Output voltage scales with the voltage of VREF.
Note 15. For AC-load.
Parameter
Power Supplies
Power Supply Current
Note 16. All digital input pins are held VT or DGND.
MS0401-E-00
Normal Operation (PDN pin = “H”)
Power-down mode (PDN pin = “L”)
IPGA=0dB; typ. 5.1kΩ, IPGA=+18dB; typ. 1.18kΩ
Vin (typ) = ±2.82Vpp x VREF/5.
This voltage is proportional to VREF. Vin(typ) = 3.07Vpp x VREF/5.
VA: ADC Single-ended Mode
VD+VT (fs=44.1kHz)
VA
VD+VT
AOUT (typ.@0dB) = (AOUT+) - (AOUT-) = 5.6Vpp x VREF/5.
ADC Differential Mode
(fs=96kHz)
(fs=192kHz)
(A-weighted) (Note 11, Note 12)
fs=44.1kHz
BW=20kHz
fs=96kHz
BW=40kHz
fs=192kHz
BW=40kHz
ANALOG CHARACTERISTICS (DAC)
0dBFS
−60dBFS
0dBFS
−60dBFS
0dBFS
−60dBFS
(Note 16)
(Note 15)
(Note 13)
(Note 14)
- 8 -
min
±2.6
min
107
87
90
3
-
-
-
-
-
-
0.15
±2.8
typ
115
115
110
typ
60
55
11
21
27
10
10
97
52
97
49
97
49
20
max
±3.0
0.3
24
25
max
100
100
-
90
83
41
-
-
[AK4620B]
ppm/°C
2005/07
Units
Vpp
Bits
Units
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
kΩ
pF
mA
mA
mA
mA
mA
µA
µA