参数资料
型号: TAS5705PAP
厂商: TEXAS INSTRUMENTS INC
元件分类: 音频/视频放大
英文描述: 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP64
封装: 10 X 10 MM, GREEN, PLASTIC, HTQFP-64
文件页数: 5/72页
文件大小: 1168K
代理商: TAS5705PAP
t
w(RESET)
Earliesttime
thathardmute
couldbeexited
RESET
VALID
t
d(VALID_LOW)
t
d(I2C_ready)
Startsystem
t
d(run)
Systeminitialization.
EnableviaI C.
2
T0029-05
PDN
VALID
t
d(STARTUP)
t
d(VALID_LOW)
T0030-04
t
w
www.ti.com ................................................................................................................................................ SLOS549A – JUNE 2008 – REVISED SEPTEMBER 2009
RESET TIMING (RESET)
Control signal parameters over recommended operating conditions (unless otherwise noted)
PARAMETER
MIN
TYP
MAX
UNIT
td(VALID_LOW)
Time to assert VALID (reset to power stage) low
100
ns
tw(RESET)
Pulse duration, RESET active
100
200
ns
td(I2C_ready)
Time to enable I2C
3.5
ms
td(run)
Device start-up time (after start-up command via I2C)
10
ms
NOTE: On power up, it is recommended that the TAS5705 RESET be held LOW for at least 100
μs after DVDD has reached
3.0 V. RESET assertion is ignored if applied while part is powered down
Figure 5. Reset Timing
POWER-DOWN (PDN) TIMING
Control signal parameters over recommended operating conditions (unless otherwise noted)
PARAMETER
MIN
TYP
MAX
UNIT
td(VALID_LOW)
Time to assert VALID (reset to power stage) low
725
μs
td(STARTUP)
Device startup time
650
μs
tw
Minimum pulse duration required
1
μs
NOTE: PDNZ assertion is ignored if applied when part is in RESET
Figure 6. Power-Down Timing
Copyright 2008–2009, Texas Instruments Incorporated
13
Product Folder Link(s): TAS5705
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