STA310 STMicroelectronics, STA310 Datasheet - Page 72

• 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

STA310
Type: R/W
Software Reset: 0
Hardware Reset: UND
Description:
The value in this register sets the PCM beep tone fre-
quency according to the formula:
Beep_tone_frequency = (Fs/2)/(Register_value+1)
9.20 Karaoke registers
This section describes the registers which select the
karaoke effects, for example: volume, chorus, echo,
reverb and mute. Any change to these registers must
be signalled to the DSP by writing 1 to the register.
KAR_MCh0VOL
Music channel 0 (L) volume
Address: 0x81
Type: R/W
Reset value: 0xFF
Description;
This register contains the scaling factor applied to the
left channel of the music input. It specifies a fractional
multiplication factor whose value varies from 0 to 1.0:
Music Left channel = original music left channel
scale_factor.
KAR_MCh1VOL
Music channel 1 (R) volume
72/90
Value
Bitfield
7
7
0x00: Scale factor 0 = left channel mute
0x7F: Scale factor 0.5 = half restitution of left
channel
0xFF: Scale factor 1.0 = full restitution of left
channel
6
6
5
5
4
4
value
value
Description
3
3
2
2
1
1
0
0
Address: 0x82
Type: R/W
Reset value: 0xFF
Description:
This
KAR_MCh0VOL for the right music channel.
KAR_KEYCONT
Key control (Pitch Shift) ON/OFF
Address: 0x83
Type: R/W
Reset value: 0
Description:
KAR_KEYVALUE
Key value
Address: 0x84
Type: R/W
Reset value: 0x00
Description:
The pitch shift can be changed from -3.5 to 3.5 tones,
in steps of 1/4 tone. This register sets the number of
tones according to the following table:
Key
control
(tone)
(decimal)
PSHIFT
KEYVAL
Bitfield
7
7
UE
register
6
6
-1/
4
0: pitch shift disabled, 1: pitch shift enabled
0
.
-1/
2
5
1
5
Reserved
has
-3/
4
2
4
KEYVALUE
4
-1
3
the
Description
3
-
1.1
6
4
3
-
1.3
4
same
2
5
-
1.5
8
2
6
1
-
1.9
3
function
7
1
PSHIFT
-2.49 -3.5
8
0
0
as
9