TLV320AIC26_08 Datasheet, PDF (53/67 Pages) Texas Instruments – LOW POWER STEREP AUDIO CODEC WITH HEADPHONE / SPEAKER AMPLIFIER AND 12-BIT BATTERY / TEMPERATURE / AUXILIARY ADC

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REG−00 of
PAGE−01
is updated
for Continous
AUX SCAN
Mode
SS Deactivated
Reading
AUX−Data
Register
TLV320AIC26
SLAS412− DECEMBER 2003
Reading
AUX−Data
Register
Waiting for Host to
write into REG−00
of PAGE−01
Wait for Reference Powerup Delay in case
of internal ref. mode if applicable
Sample,Conversion & Sample,Conversion &
Averaging for
Averaging for
AUX input
AUX input
Sample,Conversion &
Averaging for
AUX input
DAV
(PAGE01H,REG01H
[D15−D14 = 01])
Port Scan Operation
The time needed to complete one set of port scan conversions is given by:
NJ ƪ ƫ Nj t + 3
ǒ Ǔ NAVG NBITS ) 1
8 MHz
ƒ_conv
)
n1
)
12
)1
tOSC ) 31 tOSC ) n2 tOSC
where:
n₁ = 6 ; if ƒ_conv = 8 MHz
7 ; if ƒ_conv ≠ 8 MHz
n₂ = 0 ; if external reference mode is selected
3 ; if t_REF = 0 µs or reference is programmed for power up all the times.
1 + t_REF /125 ns; if t_{REF â‰}  0 µs and reference needs to power down between conversions.
t_REF is the reference power up delay time.
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