ak7742 ETC-unknow, ak7742 Datasheet - Page 8

• Manufacturer Part Number: ak7742
• Description: 24bit 2ch Adc + 24bit 4ch Dac With Audio Dsp
• Manufacturer: ETC-unknow

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(Ta=25ºC; AVDD=DVDD=3.3V; BICK=64fs; signal frequency 1kHz; Measurement bandwidth=20Hz~20kHz,
fs=48kHz, ADC differential input, CKM mode 0 (CKM[2:0]=000), unless otherwise specified)
Note 4. This value is not guaranteed for single-ended inputs.
Note 5. Indicates isolation between L and R when -1dBFS signal is applied.
Note 6. Target input pins are AIN1LP, AIN1LN, AIN1RP, AIN1RN.
Note 7. Target input pins are AIN2L, AIN2R, AIN3L, AIN3R.
Note 8. Target input pins are AIN1LP, AIN1LN, AIN1RP, AIN1RN, AIN2L, AIN2R, AIN3L, AIN3R.
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(Ta=25ºC; AVDD=DVDD=3.3V; BICK=64fs; signal frequency 1kHz; Measurement bandwidth=20Hz~20kHz,
fs=48kHz, ADC differential input, CKM mode 0 (CKM[2:0]=000), unless otherwise specified)
Note 9. Indicates isolation between each DAC’s of Lch and Rch when -1dBFS signal is applied.
Note 10. Full scale output voltage. The output voltage scales with AVDD.
Rev.0.5b_PB
Stereo
Stereo
DAC
ADC
ADC Characteristics
DAC Characteristics
Resolution
Dynamic characteristics
S/(N+D)
Dynamic range (A-weighted)
S/N
Inter-channel isolation (f=1kHz)
DC accuracy
Channel gain mismatch
Analog input
Input voltage (differential input)
Input voltage (single-end input)
Input impedance
Resolution
Dynamic characteristics
S/(N+D)
Dynamic range (A-weighted)
S/N
Inter-channel isolation (f=1kHz)(
DC accuracy
Channel gain mismatch
Analog output
Output voltage (
Load resistance
Load capacitance
(A-weighted)
(-1dBFS)
Note 10
(0dBFS)
(A-weighted)
Parameter
Parameter
)
ANALOG CHARACTERISTICS
(Note
Note 9
(Note
(Note
(Note
(
(
(
Note 6
Note 7
Note 8
4)
)
5)
4)
4)
)
)
)
-
8
-
TBD
TBD
TBD
±1.85
3.36
min
TDB
TDB
TDB
1.85
min
90
90
41
5
±2.00
2.00
3.66
105
106
106
105
typ
typ
0.1
0.2
62
84
96
96
92
±2.15
max
max
2.15
3.96
0.3
0.5
24
24
30
[AK7742]
Vp-p
Vp-p
Vp-p
2008/08
Unit
Unit
Bits
Bits
kΩ
kΩ
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
pF