SI270X-A-EVB Silicon Laboratories Inc, SI270X-A-EVB Datasheet - Page 33

• Manufacturer Part Number: SI270X-A-EVB
• Description: BOARD EVAL FOR SI270X-A
• Manufacturer: Silicon Laboratories Inc

Specifications of SI270X-A-EVB

• Board Type: Fully Populated
• Amplifier Type: Class D
• Output Type: 2-Channel (Stereo) with Stereo Headphones
• Max Output Power X Channels @ Load: 5W x 2 @ 3 Ohm
• Voltage - Supply: 9V
• Utilized Ic / Part: SI270X-A
• Description/function: Audio Amplifiers
• Output Power: 5 W
• Product: Audio Modules
• For Use With/related Products: Si270x
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1929

Category Number
Program-
Volume
Biquad
mable
PWM
Filter
DRC
Tone
0x1901
0x2103
0x2104
0x2105
0x2106
0x2201
0x2202
0x2203
0x2204
0x2205
0x2301
0x2302
0x2303
0x2304
0x2305
0x2306
0x2307
0x2701
0x2702
0x2703
0x2704
0x2705
0x2901
0x2902
0x2903
0x2904
0x2905
0x2906
0x2907
0x2908
Table 17. Class D Audio Amplifier Property Summary (Continued)
CROSSOVER_FREQ
BASS_BOOST_CUT
BASS_CORNER_FREQ
TREBLE_BOOST_CUT
TREBLE_CORNER_FREQ
VOLUME_MUTE
VOLUME_MASTER
VOLUME_BALANCE
VOLUME_AUX_CHANNEL
VOLUME_RAMP
DRC_CONFIG
DRC_THRESHOLD
DRC_SLOPE
DRC_GAIN
DRC_ATTACK_TIME
DRC_RELEASE_TIME
DRC_LOOKAHEAD_SAMPLES
PWM_CONFIG
PWM_FREQ
PWM_AM_TUNE_FREQ
PWM_MAX_MODULATION_INDEX Set PWM maximum modulation index.
PWM_OUTPUT_SLEW_RATE
TONE_ONE_AMPLITUDE
TONE_ONE_FREQ
TONE_ONE_ON_TIME
TONE_ONE_OFF_TIME
TONE_TWO_AMPLITUDE
TONE_TWO_FREQ
TONE_TWO_ON_TIME
TONE_TWO_OFF_TIME
Name
Rev. 0.6
Set crossover freq between Main Channel and Aux
Channel.
Set bass shelving filter boost/cut for the Left and Right
Channel.
Set bass shelving filter corner freq for the Left and
Right Channel.
Set treble shelving filter boost/cut for the Left and
Right Channel.
Set treble shelving filter corner freq for the Left and
Right Channel.
Mute speaker output.
Set Master Volume.
Set L and R Volume Balance from 0% to 100%.
Set Aux Channel Volume.
Set volume transition slope.
Configure DRC.
Set DRC threshold.
Set the DRC slope. DRC slope is the inverse of DRC
compression ratio.
Set DRC gain.
Set DRC attack time constant in ms units.
Set DRC release time constant in ms units.
Sets the number of look-ahead samples.
Set PWM Output Mode and Max Modulation Index.
Set PWM Freq in kHz units.
Set where the currently AM Tune Freq is to put the
notch when EMI mitigation mode is used.
Set output stage slew rate.
Set programmable tone generator amplitude.
Set programmable tone generator frequency.
Set programmable tone generator ON Time in ms.
Set programmable tone generator OFF Time in ms.
Set programmable tone generator amplitude.
Set programmable tone generator frequency.
Set programmable tone generator ON Time in ms.
Set programmable tone generator OFF Time in ms.
Si2704/05/06/07-A10
Summary
33