Datasheet

MAX9880A
Low-Power, High-Performance
Dual I
2
S Stereo Audio Codec
14 ______________________________________________________________________________________
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
Bus Capacitance C
B
400 pF
Pulse Width of
Suppressed Spike
t
SP
0 50 ns
SPI TIMING CHARACTERISTICS
Minimum SCLK Clock
Period
t
CP
40 ns
Minimum SCLK Pulse-
Width Low
t
CL
18 ns
Minimum SCLK Pulse-
Width High
t
CH
18 ns
Minimum CS Setup
Time
t
CSS
20 ns
Minimum CS Hold Time t
CSH
20 ns
Minimum CS Pulse-
Width High
t
CSW
20 ns
Minimum DIN Setup Time t
DS
5 ns
Minimum DIN Hold Time t
DH
5 ns
Minimum Output Data
Propagation Delay
t
DO
C
L
= 50pF 9 ns
Minimum Output Data
Enable Time
t
DEN
5 ns
Minimum Output Data
Disable Time
t
DZ
5 ns
Note 2: The MAX9880A is 100% production tested at T
A
= +25°C. Specifications over temperature limits are guaranteed by
design.
Note 3: Clocking all zeros into the DAC. Master mode. Differential headphone mode.
Note 4: DAC performance measured at headphone outputs.
Note 5: Dynamic range measured using the EIAJ method. -60dBFS 1kHz output signal, A-weighted, and normalized to 0dBFS.
f = 20Hz to 20kHz.
Note 6: Performance measured using microphone inputs, unless otherwise stated.
Note 7: Performance measured using line inputs.
Note 8: Performance measured using line inputs to line outputs.
Note 9: Performance measured using DAC. f
MCLK
= 12.288MHz, f
LRCLK
= 48kHz, unless otherwise stated.
Note 10: LRCLK can be any rate in the indicated range. Asynchronous or noninteger MCLK/LRCLK ratios can exhibit some full-
scale performance degradation compared to synchronous integer-related MCLK/LRCLK ratios.
Note 11: In master-mode operation, the accuracy of the MCLK input proportionally determines the accuracy of the sample clock
rate.
Note 12: C
B
is in pF.