Rainbow Electronics MAX9867 - Manual (Page 11)

MAX9867
Ultra-Low Power Stereo Audio Codec
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ELECTRICAL CHARACTERISTICS (continued)
(V AVDD = V PVDD = V DVDD = V DVDDIO = +1.8V, R L = ∞, headphone load (R L ) connected between _OUTP and _OUTN in differential
mode, C REF = 2.2μF, C MICBIAS = C PREG = C REG = 1μF, AV PRE = +20dB, AV PGAM = 0dB, AV DAC = 0dB, AV LINE = +20dB, AV VOL =
0dB, MCLK = 13MHz, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DIGITAL INPUTS (SDA, SCL)
Input High Voltage V IH
0.7 x
DVDD
V
Input Low Voltage V IL
0.3 x
DVDD
V
Input Hysteresis 200 mV
Input Leakage Current I
IH
, I
IL
T
A
= +25°C ±1 μA
Input Capacitance 10 pF
DIGITAL INPUT (DIGMICDATA)
Input High Voltage V IH
0.65 x
DVDD
V
Input Low Voltage V IL
0.35 x
DVDD
V
Input Hysteresis 100 mV
Input Leakage Current I
IH
, I
IL
T
A
= +25°C ±35 μA
Input Capacitance 10 pF
CMOS DIGITAL OUTPUTS (BCLK, LRCLK, SDOUT)
Output Low Voltage V OL I OL = 3mA 0.4 V
Output High Voltage V OH I OH = 3mA
DVDDIO
- 0.4
V
CMOS DIGITAL OUTPUT (DIGMICCLK)
Output Low Voltage V OL I OL = 1mA 0.4 V
Output High Voltage V OH I OH = 1mA
DVDD -
0.4
V
OPEN-DRAIN DIGITAL OUTPUTS (SDA, IRQ)
Output High Current I OH V OUT = DVDD, T A = +25°C 1 μA
Output Low Voltage V OL I OL = 3mA
0.2 x
DVDD
V
DIGITAL MICROPHONE TIMING CHARACTERISTICS (V DVDD = 1.65V)
MICCLK = 00 PCLK/8
DIGMICCLK Divide Ratio f MICCLK
MICCLK = 01 PCLK/6
MHz
DIGMICDATA to DIGMICCLK
Setup Time
t SU,MIC Either clock edge 20 ns
DIGMICDATA to DIGMICCLK
Hold Time
t HD,MIC Either clock edge 0 ns
DIGITAL AUDIO INTERFACE TIMING CHARACTERISTICS (V DVDD = 1.65V)
t BCLKS Slave operation 75 ns
Minimum BCLK Cycle Time
t BCLKM Master operation 325 ns