AK7735EQ Datasheet, PDF (11/142 Pages) Asahi Kasei Microsystems – Dual DSP with 4chADC + 4chDAC + 4chSRC

[AK7735]
■ Handling of Unused Pins
Unused I/O pins must be connected appropriately.
Classification
Analog
Digital
Pin Name
MPREF, MPWR, AIN1L/INP1, INN1, AIN1R/INP2, INN2,
AIN2LP/AIN3L, AIN2LN/AIN4L, AIN2RP/AIN3R,
AIN2RN/AIN4R, AOUT1L, AOUT1R, AOUT2L, AOUT2R
XTI, XTO, SDOUT1/RDY, STO/RDY/SDOUT2,
SDOUT3/CLKO/GPO1, SDOUT4/GPO2
SDIN4, SDIN3/JX3, SDIN2/JX0, SDIN1, LRCK1, BICK1,
LRCK2/JX1, BICK2/JX2, LRCK3, BICK3, TESTI
Table 1. Handling of Unused Pins
Setting
Open
Open
Connect to DVSS1/DVSS2
■ Internal Pulled-down Pins Status
Power Down Status Power Down Release
No. Pin Name
PDN pin = “L”
PDN pin = “H”
(Slave mode)
3 TESTI
Pulled-down (25kΩ)
Pulled-down (25kΩ)
18 LRCK1
Pulled-down (50kΩ) Input (Pulled-down) (46 kΩ)
19 BICK1
Pulled-down (50kΩ) Input (Pulled-down) (46 kΩ)
15 LRCK2/JX1
Pulled-down (50kΩ) Input (Pulled-down) (46 kΩ)
16 BICK2/JX2
Pulled-down (50kΩ) Input (Pulled-down) (46 kΩ)
4 LRCK3
Pulled-down (50kΩ) Input (Pulled-down) (46 kΩ)
6 BICK3
Pulled-down (50kΩ) Input (Pulled-down) (46 kΩ)
20 SDOUT1/RDY
Pulled-down (50kΩ)
Output
23 STO/RDY/SDOUT2
Pulled-down (50kΩ)
Output
7 SDOUT3/CLKO/GPO1 Pulled-down (50kΩ)
Output
5 SDOUT4/GPO2
Pulled-down (50kΩ)
Output
29 AVDRV
Pulled-down (70Ω)
Output
Table 2. Internal Pulled-down Pins Status
Note
* 2. Typical resistance value when LVDD=TVDD=VDD33=3.3V.
Power Down Release
PDN pin = “H”
(Master mode)
Pulled-down (25kΩ)
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
016014707-E-00
- 11 -
2016/12