參數(shù)資料
型號: TAS5518CPAG
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝: GREEN, PLASTIC, TQFP-64
文件頁數(shù): 57/103頁
文件大?。?/td> 2007K
代理商: TAS5518CPAG
4.6.4
Reset Timing (RESET)
tw(RESET)
Earliest time
that PWM outputs
could be enabled
RESET
VALID
td(PWM_off) 3 370 ns
td(I2C_ready)
Start system
td(run)
Determine SCLK rate
and MCLK ratio. Enable via I2C.
T0029-04
4.6.5
Power-Down (PDN) Timing
PDN
VALID
tsu
td(PWM_off) < 300 s
T0030-03
TAS5518C
8-Channel Digital Audio PWM Processor
www.ti.com
SLES238A – SEPTEMBER 2008 – REVISED JULY 2009
Control signal parameters over recommended operating conditions (unless otherwise noted)
PARAMETER
MIN
TYP
MAX
UNIT
tr(DMSTATE)
Time to M-STATE low
370
ns
tw(RESET)
Pulse duration, RESET active
400
None
ns
tr(I2C_ready)
Time to enable I2C
3
ms
tr(run)
Device startup time
10
ms
NOTE: Since a crystal time base is used, the system determines the CLK rates. Once the data rate and master clock ratio is
determined, the system outputs audio if a master volume command is issued.
Figure 4-4. Reset Timing
Control signal parameters over recommended operating conditions (unless otherwise noted)
PARAMETER
MIN
TYP
MAX
UNIT
tp(DMSTATE)
Time to M-STATE low
300
s
Number of MCLKs preceding the release of PDN
5
tsu
Device startup time
120
ms
Figure 4-5. Power-Down Timing
Electrical Specifications
57
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