Rainbow Electronics MAX9867 - Manual (Page 12)

MAX9867
Ultra-Low Power Stereo Audio Codec
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PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Minimum BCLK High Time t BCLKH Slave operation 30 ns
Minimum BCLK Low Time t BCLKL Slave operation 30 ns
BCLK or LRCLK Rise and Fall 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 0 ns
SDOUT Delay Time from BCLK
Rising Edge
t
DLY
C
L
= 30pF 0 40 ns
I 2 C TIMING CHARACTERISTICS (V DVDD = 1.65V)
Serial-Clock Frequency f SCL 0 400 kHz
Bus Free Time Between STOP
and START Conditions
t BUF 1.3 μs
Hold Time (REPEATED) START
Condition
t HD,STA 0.6 μs
SCL Pulse-Width Low t LOW 1.3 μs
SCL Pulse-Width High t HIGH 0.6 μs
Setup Time for a REPEATED
START Condition
t SU,STA 0.6 μs
Data Hold Time t HD,DAT R PU,SDA = 475 Ω 0 900 ns
Data Setup Time t SU,DAT 100 ns
SDA and SCL Receiving Rise
Time
t R (Note 10)
20 +
0.1C B
300 ns
SDA and SCL Receiving Fall
Time
t F (Note 10)
20 +
0.1C B
300 ns
SDA Transmitting Fall Time t F
R PU,SDA = 475 Ω
(Note 10)
20 +
0.1C B
250 ns
Setup Time for STOP Condition t SU,STO 0.6 μs
Bus Capacitance C B 400 pF
Pulse Width of Suppressed Spike t SP 0 50 ns
Note 2: The MAX9867 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, and differential headphone mode.
Note 4: DAC performance measured at the 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 DAC, unless otherwise stated. LRCLK = 8kHz, unless otherwise stated.
Note 9: In master-mode operation, the accuracy of the MCLK input proportionally determines the accuracy of the sample clock rate.
Note 10: C
B
is in pF.
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)