AK4950 Datasheet, PDF (5/106 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP & mini DSP

[AK4950]
PIN/FUNCTION
No Pin Name
I/O Function
1 ^ROUT
MIN
O Rch Analog Output Pin (PMBP bit = “0”)
I Mono Analog Signal Input Pin (PMBP bit = “1”)
2 LOUT
O Lch Analog Output Pin
LIN1
3
DMDAT
I Lch Analog Input Line Input 1Pin
I Digital Microphone Data Input Pin
(DMIC bit = “0”)
(DMIC bit = “1”)
RIN1
4
DMCLK
I Rch Analog Input 1 Pin
O Digital Microphone Clock pin
(DMIC bit = “0”)
(DMIC bit = “1”)
5 MPWR
O MIC Power Supply Pin for Microphone
6 LIN2
I Lch Analog Input 2 pin
7 RIN2
I Rch Analog Input 2 Pin
8 PDN
Power-down & Reset
I
When “L”, the AK4950 is in power-down mode and is held in reset.
The AK4950 must be always reset upon power-up.
CSN
9
SDA
I Chip Select Pin
I/O Control Data Input/Output Pin
(I2C pin = “L”)
(I2C pin = “H”)
CCLK
10
SCL
I Control Data Clock Pin
I Control Data Clock Pin
(I2C pin = “L”)
(I2C pin = “H”)
CDTIO
11
CAD0
I/O Control Data Input/Output Pin
I Chip Address Select Pin
(I2C pin = “L”)
(I2C pin = “H”)
12 SDTI
I Audio Serial Data Input Pin
13 SDTO
O Audio Serial Data Output Pin
14 LRCK
I/O Input/Output Channel Clock Pin
15 BICK
I/O Audio Serial Data Clock Pin
16 TVDD
- Digital I/F Power Supply Pin
17 VSS2
- Ground 2 Pin
18 MCKI
I External Master Clock Input Pin
19 MCKO
O Master Clock Output Pin
20 REGFILB
LDO Voltage Output pin for Digital Logic (typ 1.8V)
O
This pin must be connected to the VSS1 pin with a 1.0μF capacitor (±50%
including tolerance and temperature allowance) in series.
21 REGFILA
22 I2C
LDO Voltage Output pin for Analog Logic (typ 2.3V)
O
This pin must be connected to the VSS1 pin with a 2.2μF capacitor (±50%
including tolerance and temperature allowance) in series.
I
Control Mode Select Pin “H”: I²C Bus, “L”: 3-wire mode
The input circuit of the I2C pin is operated by AVDD.
23 SPP
O Speaker Amp Positive Output Pin
24 SPN
O Speaker Amp Negative Output Pin
25 VSS3
- Ground 3 Pin
26 AVDD
-
Analog Power Supply Pin
This pin must be connected to VSS4 with a 0.1μF ceramic capacitor in series.
27 VCOM
O
Common Voltage Output Pin
Bias voltage of ADC inputs and DAC outputs.
28 VSS1
- Ground 1 Pin
29 VOUT
O Composite Video Output Pin
30 VSS4
- Ground 4 Pin
31 PVEE
O
Negative Voltage Output Pin for Video Output
This pin must be connected to VSS4 with a 2.2μF ceramic capacitor in series.
32 VIN
I Composite Video Input Pin
Note 1. All input pins except analog input pins (MIN, LIN1, RIN1, LIN2, RIN2, VIN) must not be allowed to float.
MS1320-E-00
-5-
2011/10