STA310 STMicroelectronics, STA310 Datasheet - Page 49

• Manufacturer Part Number: STA310
• Description: IC AUDIO DECODER 6+2CH 80-TQFP
• Manufacturer: STMicroelectronics
• Type: Audio Decoderr

Specifications of STA310

• Applications: HDTV, Players, Receivers, Set-Top Boxes
• Voltage - Supply, Analog: 2.5V
• Voltage - Supply, Digital: 2.5V
• Mounting Type: Surface Mount
• Package / Case: 80-TQFP, 80-VQFP
• Audio Codec Type: MP3 Decoder
• No. Of Dacs: 3
• No. Of Input Channels: 2
• No. Of Output Channels: 6
• Adc / Dac Resolution: 32bit
• Sampling Rate: 192kHz
• Interface Type: I2C, Serial, Parallel
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8856; STA310

Hardware: Reset:UND
Description:
The table below shows the relationship between the value of the IEC divider and the value of the PCM divider.
SPDIF_STATUS
SPDIF status bit
Address: 0x61
Type: R/W
Software Reset: NC
Hardware: Reset UND
Description:
DIV[4:0]
RND
SM
LAT
5
3
2
1
Bitfield
7
PCM Divider Value
This field is the DAC_PCMCLK divider. It must be set according to the formula:
in 16 bit mode: IECDIV=(1+PCMDIV)/2-1; in 32 bit mode: IECDIV=PCMDIV
This bit is used to have a "16-bit rounding" on the SPDIF (when in PCM mode):
0: no rounding,
1: rounding.
This bit has no effect on the precision of analogue data
SYNC MUTE Mode, must be set to zero.
Configures the latency mode between the SPDIF output (in mode compressed) and the Audio output.
0: Auto-Latency: The latency is the transmission time for 2/3 of the payload, plus the time to decode
an audio block.
For MPEG Auto-Latency, the latency is the following time depending of the sampling frequency in the
incoming bitstream: MPEG 48KHz: 20.90ms, MPEG 44.1KHz: 22.95ms, MPEG 32KHz: 32.53ms.
1: User-programmable latency - the
6
5
DAC_PCMCLK = 384Fs, DAC is 16-bit mode
DAC_PCMLK = 256 Fs, DAC is 16-bit mode
DAC_PCMLK = 384 Fs, DAC is 32-bit mode
DAC_PCMLK = 256 Fs, DAC is 32-bit mode
SFR
Mode Description
4
SPDIF_LATENCY register is used.
Description
3
PRE
2
2
1
2
1
IEC Divider Value
COP
1
STA310
COM
0
49/90