STA015B$ STMicroelectronics, STA015B$ Datasheet - Page 46

• Manufacturer Part Number: STA015B$
• Description: DECODER AUDIO MPEG 2.5 8X8LFBGA
• Manufacturer: STMicroelectronics
• Type: Audio Decoderr

Specifications of STA015B$

• Applications: Sound Cards, Players, Recorders
• Voltage - Supply, Digital: 2.4 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 64-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply, Analog: -

STA015
6.3 TIMING DIAGRAMS
6.3.1 Audio DAC Interface
a) OCLK in output. The audio PLL is used to clock the DAC
tsdo = 3.5 + pad_timing (Cload_SDO) - pad_timing (Cload_ OCLK)
tsckt = 4 + pad_timing (Cload_SCKT) - pad_timing (Cload_ OCLK)
tlrckt = 3.5 + pad_timing (Cload_LRCCKT) - pad_timing (Cload_ OCLK)
Pad-timing versus load
Cload_XXX is the load in pF on the XXX output. pad_timing (Cload_XXX) is the propagation delay added
to the XXX pad due to the load.
b) OCLK in input.
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OCLK (INPUT)
OCLK (OUTPUT)
LRCLK
SCKT
SDO
LRCLK
SCKT
SDO
Load (pF)
100
25
50
75
t
t
t
sckt
lrclk
sdo
t
hi
t
t
t
sckt
lrclk
sdo
t
oclk
t
lo
Pad_timing
2.90ns
3.82ns
4.68ns
5.52ns
D98AU969
D98AU970