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| 型號(hào)： | TAS5508PAG |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | GREEN, PLASTIC, TQFP-64 |
| 文件頁(yè)數(shù)： | 57/105頁(yè) |
| 文件大小： | 1286K |
| 代理商： | TAS5508PAG |
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4
Electrical Specifications
4.1
Absolute Maximum Ratings
(1)
4.2
Dissipation Rating Table (High-k Board, 105
＝C Junction)
4.3
Dynamic Performance At Recommended Operating Conditions at 25
＝C
4.4
Recommended Operating Conditions
TAS5508
8-Channel Digital Audio PWM Processor
www.ti.com
SLES091D – FEBRUARY 2004 – REVISED JULY 2009
Supply voltage, DVDD and DVD_PWM
–0.3 V to 3.6 V
Supply voltage, AVDD_PLL
–0.3 V to 3.6 V
3.3-V digital input
–0.5 V to DVDD + 0.5 V
Input voltage
5 V tolerant(2) digital input
–0.5 V to 6 V
1.8 V LVCMOS(3)
–0.5 V to VREF(4) + 0.5 V
IIK
Input clamp current (VI < 0 or VI > 1.8 V
＝20 mA
IOK
Output clamp current (VO < 0 or VO > 1.8 V)
＝20 mA
TA
Operating free-air temperature
0
＝C to 70＝C
Tstg
Storage temperature range
–65
＝C to 150＝C
(1)
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2)
5-V tolerant inputs are RESET, PDN, MUTE, HP_SEL, SCLK, LRCLK, MCLK, SDIN1, SDIN2, SDIN3, SDIN4, SDA, and SCL.
(3)
VRA_PLL, VRD_PLL, VR_DPLL, VR_DIG, VR_PWM
(4)
VREF is a 1.8-V supply derived from regulators internal to the TAS5508 chip. VREF is on terminals VRA_PLL, VRD_PLL, VR_DPLL,
VR_DIG, and VR_PWM. These terminals are provided to permit use of external filter capacitors, but should not be used to source power
to external devices.
TA ≤ 25＝C
DERATING FACTOR
TA = 70＝C
PACKAGE
POWER RATING
ABOVE TA = 25＝C
POWER RATING
PAG
1869 mW
23.36 mW/
＝C
818 mW
PARAMETER
TEST CONDITIONS
MIN
NOM
MAX
UNIT
Dynamic range 32 kHz to 192 kHz
TAS5508 + TAS5111 A-weighted
102
dB
TAS5111 at 1 W
0.1%
Total harmonic distortion
TAS5508 ouput
0.01%
32-kHz to 96-kHz sample rates
＝0.1
Frequency response
dB
176.4, 192-kHz sample rates
＝0.2
MIN
NOM
MAX
UNIT
Digital supply voltage, DVDD and DVDD_PWM
3
3.3
3.6
V
Analog supply voltage, AVDD_PLL
3
3.3
3.6
V
3.3 V
2
VIH
High-level input voltage
5-V tolerant(1)
2
V
1.8-V LVCMOS (XTL_IN)
1.26
3.3 V
0.8
VIL
Low-level input voltage
5-V tolerant(1)
0.8
V
1.8-V (XTL_IN)
0.54
TA
Operating ambient-air temperature range
0
25
70
＝C
TJ
Operating junction temperature range
–20
105
＝C
(1)
5-V tolerant inputs are RESET, PDN, MUTE, HP_SEL, SCLK, LRCLK, MCLK, SDIN1, SDIN2, SDIN3, SDIN4, SDA, and SCL.
Electrical Specifications
55
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