AK4525VF Asahi Kasei Microsystems, AK4525VF Datasheet - Page 5

• Manufacturer Part Number: AK4525VF
• Description: 20BIT STEREO ADC & DAC WITH X TAL OSC
• Manufacturer: Asahi Kasei Microsystems

ASAHI KASEI
(Ta=25 C; VA, VD=5.0V; AGND=DGND=0V; VREFH=VA; fs=44.1kHz; SCLK=64fs;
Parameter
ADC Analog Input Characteristics:
Resolution
S/(N+D)
DR
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
S/N
Interchannel Isolation
Interchannel Gain Mismatch
Gain Drift
Output Voltage (AOUT=0.58 x VREFH)
Load Resistance
Load Capacitance
Power Supply Rejection
Power Supplies
Analog, VA
Digital, VD
Power Down
Notes:
MS0053-E-00
Signal Frequency =1kHz; 20bit Data; Measurement frequency = 10Hz
10. X’tal circuit is oscillating and all digital input pins are held VD or DGND.
5. In case of 16bit, DR and S/N of ADC are 98dB. DR of DAC is 98dB.
6. S/N measured by CCIR-ARM is 96dB at each converter and 94dB at ADC to DAC loopback.
7. Full scale input for each AIN+/- pin is 1.5Vpp in differential mode.
8. PSR is applied to VA, VD with 1kHz, 50mVpp. VREFH pin is held a constant voltage.
9. As the input data is “0”, S/N is 100dB regardless of resolution.
4. In case of single ended input, S/(N+D)=80dB(typ, @VA=5V).
(A-Weighted)
(-60dB Input, A-Weighted)
(AIN=0.6 x VREFH)
(-0.5dB Input)
(A-Weighted)
(-60dB Output, A-Weighted)
VA=VD=5V
PDN= “H”
PDN= “H”
PDN= “L”
Differential Inputs; Analog Source Impedance=470
ANALOG CHARACTERISTICS
(Note 10)
(Note 8)
(Note 5)
(Note 8)
(Note 7)
(Note 5)
(Note 6, 9)
(Note 4)
(Note 5, 6)
- 5 -
min
2.85
2.65
94
84
94
94
90
15
80
94
90
5
20kHz; unless otherwise specified)
100
100
typ
100
110
100
110
0.1
3.0
0.2
2.9
40
12
92
20
25
50
90
20
50
6
max
3.15
3.15
0.3
0.5
55
20
12
20
20
25
-
[AK4525]
ppm/ C
ppm/ C
Units
Bits
Vpp
Vpp
Bits
mA
mA
mA
2000/9
k
dB
k
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF