AK7735EQ Datasheet, PDF (15/142 Pages) Asahi Kasei Microsystems – Dual DSP with 4chADC + 4chDAC + 4chSRC

[AK7735]
3. MIC AMP + ADC1
(Ta=25C; AVDD=LVDD=TVDD=VDD33=3.3V; AVSS=DVSS1=DVSS2=DVSS3=0V; Signal Frequency
=1kHz; 24bit Data; BICK=64fs; @fs=48kHz, Measurement Frequency BW=20Hz ~ 20kHz;
@fs=96kHz,192kHz, BW=20Hz ~ 40kHz; ADC1VL/R bits=“0”; MGNL/R[3:0] bits=0h (0dB); Differential
Input, Unless otherwise specified.)
Parameter
Min. Typ. Max. Unit
Resolution
24
Bit
Input Full Scale
Voltage * 10
Differential Input
Differential Input
Differential Input
* 13 ±2.1 ±2.3 ±2.5
* 14 ±0.264 ±0.290 ±0.315 Vpp
* 15 ±2.55 ±2.83 ±3.11
Input Full Scale
Voltage * 11
Single-ended Input
Single-ended Input
Single-ended Input
* 13 2.1
* 14 0.264
* 15 2.55
2.3
0.290
2.83
2.5
0.315 Vpp
3.11
fs=48kHz * 13
85
95
fs=48kHz * 14
87
S/(N+D)
(-1dBFS)
fs=96kHz * 13
fs=96kHz * 14
92
84
dB
fs=192kHz * 13
92
MIC AMP
+ ADC1
fs=192kHz * 14
84
fs=48kHz (A-weighted) * 13 98
106
fs=48kHz (A-weighted) * 14
95
Dynamic Range
(-60dBFS)
fs=96kHz
fs=96kHz
* 13
99
* 14
89
dB
fs=192kHz
* 13
99
fs=192kHz
* 14
89
fs=48kHz (A-weighted) * 13 98
106
fs=48kHz (A-weighted) * 14
95
S/N
fs=96kHz
fs=96kHz
* 13
99
* 14
89
dB
fs=192kHz
* 13
99
fs=192kHz
* 14
89
Inter-Channel Isolation
* 12 90
105
dB
Channel Gain Mismatch
0.0
0.3 dB
CMRR * 16
60
80
dB
Notes
* 10. INP1, INN1, INP2 and INN2 pins
* 11. AIN1L and AIN1R pins
* 12. Inter-channel isolation with -1dBFS signal input.
* 13. ADC1VL/R bits = “0”, MGNL/R[3:0] bits = 0h (0dB). Input full-scale voltage is proportional to AVDD
(0.7 x AVDD).
* 14. ADC1VL/R bits = “0”, MGNL/R[3:0] bits = 9h (+18dB). Input full-scale voltage is proportional to
AVDD (0.088 x AVDD).
* 15. ADC1VL/R bits = “1”, MGNL/R[3:0] bits = 0h (0dB). Input full-scale voltage is proportional to AVDD
(0.86 x AVDD).
* 16. Common mode rejection ratio when inputting 1kHz, 100mVpp sine wave to both differential inputs.
The value refers to the case when input a 1kHz, ±100mVpp sine wave as differential input.
016014707-E-00
- 15 -
2016/12