AK4955 Datasheet, PDF (6/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
No Pin Name
MIC Block
D6 ^LIN1
DMDAT
C6 ^RIN1
DMCLK
D3 LIN2
D4 RIN2
E3 MPWR
I/O Function
I Lch Analog Input Line Input 1Pin
(DMIC bit = “0”)
I Digital Microphone Data Input Pin
(DMIC bit = “1”) (Note 1)
I Rch Analog Input 1 Pin
(DMIC bit = “0”)
O Digital Microphone Clock pin
(DMIC bit = “1”)
I Lch Analog Input 2 pin
I Rch Analog Input 2 Pin
O MIC Power Supply Pin for Microphone
MIN Block
C3 MIN
I Mono Analog Signal Input Pin
Lineout Block
C4 LOUT
C5 ROUT
Speaker Block
E5 SPP
F6 SPN
O Lch Analog Output Pin
O Rch Analog Output Pin
O Speaker Amp Positive Output Pin
O Speaker Amp Negative Output Pin
Video Block
D1 VIN
C2 VOUT
I Composite Video Input Pin
O Composite Video Output Pin
Other Functions
C1 PDN
I
Reset & Power-down Pin (Note 1)
“L”: Reset & Power-down, “H”: Normal Operation
Note 1. All input pins except analog input pins (MIN, LIN1, RIN1, LIN2, RIN2, VIN) must not be allowed to float.
■ Handling of Unused Pin
Unused I/O pins must be processed appropriately as below.
Classification Pin Name
Analog
MPWR, SPN, SPP, LOUT, ROUT, MIN, RIN2,
LIN2, LIN1/DMDAT, RIN1/DMCLK, VIN, VOUT
Digital
MCKO, SDTO
MCKI, SDTI
LRCK, BICK
Setting
These pins must be open.
These pins must be open.
These pins must be connected to VSS2.
M/S bit = “0”,
these pins must be connected to VSS2.
MS1343-E-00
-6-
2011/12