STA310 STMicroelectronics, STA310 Datasheet - Page 11

• 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

4.2 Clocks
There are two embedded PLLs in the STA310: the system PLL and the PCM PLL.
The following is the block diagram of the system and audio clocks used in the STA310
Figure 3. PLL Block Diagram
Figure 4. Block Diagram of Functional PLL
(27MHz)
ClkIn
CLKOUT
/ N
sys_clk
CLK
Frac
DIV N+1
DSP Core
sys_clockout
update_frac
Switching
Circuit
plls_config
pll_disable
DIV M+1
PLL Sys
dN
78
PFD
R
Periph 1
PLL Audio
Charge
analog part
Pump
VCO
I
Periph 2
RXN
DIV (X+1)
SPDIF
RXP
pcm_clk
Ip
Uvco
Oclk
W
PCM_OUT
Periph 3
PCMCLK
PCMOUT0,1,2,3
SCLOCK
LRCLK
Filter (external)
C3
R
C
STA310
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