ak4520a AKM Semiconductor, Inc., ak4520a Datasheet - Page 5

• Manufacturer Part Number: ak4520a
• Description: 100db 20bit Stereo Adc & Dac
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
0163-E-00
Note: 3 . In case of single ended input, S/(N+D)=84dB(typ, @VA=5V).
(Ta=25 C; VA,VD=5.0V; AGND=DGND=0V; VREFH=VA; VREFL=AGND; fs=44.1kHz; SCLK=64fs,
ADC Analog Input Characteristics: Differential Inputs; Analog Source Impedance=470
Resolution
S/(N+D)
DR (-60dB Input, A-Weighted)
S/N
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Input Voltage
Input Resistance
Power Supply Rejection
DAC Analog Output Characteristics:
Resolution
S/(N+D)
DR (-60dB Output, A-Weighted)
S/N
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Output Voltage
Load Resistance
Load Capacitance
Power Supply Rejection
Signal Frequency=1kHz; 20bit Data; Measurement frequency=10Hz 20kHz; unless otherwise specified)
AIN=0.6x(VREFH-VREFL)
AOUT=0.626x(VREFH-VREFL)
4 . In case of 16bit, DR and S/N of ADC are 98dB. DR of DAC is 98dB.
5 . S/N measured by CCIR-ARM is 96dB at each converter and 94dB at ADC to DAC loopback.
6 . PSR is applied to VA,VD with 1kHz, 50mVpp. VREFH/VREFL pin is held a constant voltage.
7 . As the input data is "0", S/N is 100dB regardless of resolution.
(A-Weighted)
(-0.5dB Input)
(A-Weighted)
Parameter
(Note 7,5 )
(Note 4 )
(Note 4 ,5 )
(Note 3 )
(Note 4 )
(Note 6 )
(Note 6 )
ANALOG CHARACTERISTICS
VA=3V
VA=5V
VA=3V
VA=5V
VA=3V
VA=5V
VA=3V
VA=5V
VA=3V
VA=5V
VA=3V
VA=5V
VA=3V
VA=5V
VA=3V
VA=5V
- 5 -
2.85
1.76
2.94
min
1.7
80
84
90
94
90
94
90
20
84
80
92
96
92
96
90
10
1.88
3.13
100
100
110
100
100
110
0.1
1.8
3.0
0.1
typ
86
90
96
96
20
30
50
90
90
96
96
20
50
max
3.15
1.99
3.32
0.3
1.9
0.3
20
20
25
ppm/ C
ppm/ C
Units
Vpp
Vpp
Vpp
Vpp
Bits
Bits
k
k
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF
dB
[AK4520A]
1997/3