Datasheet

MAX9880A
Low-Power, High-Performance
Dual I
2
S Stereo Audio Codec
12 ______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
PVDD
= V
MICVDD
= V
DVDD
= V
DVDDS1
= +1.8V, R
L
= ∞, headphone load (R
L
) connected between _OUTP and _OUTN, dif-
ferential modes, 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, AV
LO
= 0dB, f
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 MICROPHONE TIMING CHARACTERISTICS (V
DVDD
= 1.8V)
MICCLK = 00 1.536
MICCLK = 01 2.048
DIGMICCLK Frequency f
MICCLK
f
MCLK
= 12.288MHz
MICCLK = 10 64f
S
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
SPDM TIMING CHARACTERISTICS
SPDMCLK = 00 1.536
SPDMCLK = 01 2.048
SPDMCLK Frequency f
SPDMCLK
f
MCLK
= 12.288MHz
SPDMCLK = 10 3.072
MHz
Minimum, f
MCLK
= 20MHz 15
SPDMCLK to
SPDMDATA Delay Time
t
DLY,S PDM
Rising edge SPDMCLK
to right-channel valid
SPDMDATA and falling
edge SPDMCLK to left-
channel valid
SPDMDATA
Maximum, f
MCLK
= 10MHz 65
ns
DIGITAL AUDIO INTERFACE TIMING CHARACTERISTICS (TDM = 0, V
DVDD
= 1.8V)
BCLK Cycle Time t
BCLKS
75 ns
BCLK High Time t
BCLKH
T
A
= +25°C 30 ns
BCLK Low Time t
BCLKL
T
A
= +25°C 30 ns
BCLK or LRCLK Rise
and Fall Time
t
R
, t
F
Master operation, C
L
= 15pF 7 ns
SDIN or LRCLK to BCLK
Setup Time
t
SU
20 ns
SDIN or LRCLK to BCLK
Hold Time
t
HD
5 ns
SDOUT Delay Time from
BCLK Rising Edge
t
DLY
C
L
= 30pF 0 40 ns
DIGITAL AUDIO INTERFACE TIMING CHARACTERISTICS (TDM = 1, Figure 3, V
DVDD
= 1.8V)
TDM Clock Frequency 1/t
CLK
TDM mode (TDM = 1) 128 2048 kHz
TDM Clock Time High t
CLKH
TDM mode (TDM = 1), T
A
= +25°C 220 ns
TDM Clock Time Low t
CLKL
TDM mode (TDM = 1), T
A
= +25°C 220 ns
Short TDM mode (TDM = 1, FSW = 0), master mode
(MAS = 1)
200
TDM Short-Sync Setup
Time
t
SYNCSET
Short TDM mode (TDM = 1, FSW = 0), slave mode
(MAS = 0)
20
ns