AK4955 Datasheet, PDF (14/117 Pages) Asahi Kasei Microsystems – 24bit Stereo CODEC with MIC/SPK/Cap-less VIDEO-AMP/ LDO & DSP

[AK4955]
DC CHARACTERISTICS
(Ta =25°C; AVDD = 2.7 ~ 3.6V, DVDD = 1.6 ~ 2.0V, LVDD = 2.7 ~ 5.5V, SVDD= 2.7 ~ 5.5V, TVDD =DVDD-0.2 ∼
3.6V; fs= 48kHz; DEM=OFF)
Parameter
Symbol
min
typ
max
Unit
Audio Interface & Serial µP Interface
(CDTIO/CAD0, CSN/SDA, CCLK/SCL, I2C, PDN, BICK, LRCK, SDTI, MCKI pins )
High-Level Input Voltage
(TVDD ≥ 2.2V)
(TVDD < 2.2V)
Low-Level Input Voltage
(TVDD ≥ 2.2V)
(TVDD < 2.2V)
VIH 70%TVDD
VIH 80%TVDD
VIL
-
VIL
-
-
-
V
-
-
V
-
30%TVDD V
-
20%TVDD V
Audio Interface & Serial µP Interface (CDTIO, SDA MCKO, BICK, LRCK, SDTO pins Output)
High-Level Output Voltage
(Iout = −80μA) VOH TVDD−0.2
-
-
V
Low-Level Output Voltage
(Except SDA pin : Iout = 80μA) VOL1
-
(SDA pin, 2.0V ≤ TVDD ≤ 3.6V: Iout = 3mA) VOL2
-
(SDA pin, 1.6V ≤ TVDD < 2.0V: Iout = 3mA) VOL2
-
Input Leakage Current
Iin1
-
-
0.2
V
-
0.4
V
-
20%TVDD V
-
±10
μA
Digital MIC Interface (DMDAT pin Input ; DMIC bit = “1”)
High-Level Input Voltage
Low-Level Input Voltage
VIH2 65%AVDD
VIL2
-
-
-
V
-
35%AVDD V
Input Leakage Current
Iin2
-
-
±10
μA
Digital MIC Interface (DMCLK pin Output ; DMIC bit = “1”)
High-Level Output Voltage
(Iout=−80μA)
VOH3 AVDD-0.4
-
Low-Level Output Voltage
(Iout= 80μA)
VOL3
-
-
-
V
0.4
V
MS1343-E-00
- 14 -
2011/12