Datasheet

TAS5548
www.ti.com SLES270 –NOVEMBER 2012
7 Electrical Specifications
7.1 Absolute Maximum Ratings
(1)
Supply voltage, DVDD1 and DVDD2 –0.3 V to 3.9 V
Supply voltage, AVDD and AVDD_PWM –0.3 V to 3.9 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
I
IK
Input clamp current (V
I
< 0 or V
I
> 1.8 V ±20 μA
I
OK
Output clamp current (V
O
< 0 or V
O
> 1.8 V) ±20 μA
T
A
Operating free-air temperature 0°C to 85°C
T
stg
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. Functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating
Conditions are not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) 5-V tolerant signals are RESET, PDN, MUTE, HP_SEL, SCLK, LRCLK, MCLK, SDIN1, SDIN2, SDIN3, SDIN4, SDA, and SCL.
7.2 Dissipation Rating Table (High-k Board, 115°C Junction)
T
A
≤ 25°C DERATING FACTOR T
A
= 85°C
PACKAGE
POWER RATING ABOVE T
A
= 25°C POWER RATING
DCA
7.3 Dynamic Performance
At recommended operating conditions at (25°C, 3.3V Power Supplies with 48kHz input data) unless otherwise noted.
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
TAS5548 A-weighted (Test Range: 20Hz to 20kHz. f
S
=
Dynamic range 105 dB
96 kHz).
Total harmonic distortion TAS5548 output (1kHz @ -1dBFS) 0.01%
32-kHz to 96-kHz sample rates (Test Range 20Hz -
±0.1
20kHz)
Frequency response dB
176.4, 192-kHz sample rates (Test Range 20Hz -
±0.2
20kHz)
7.4 Recommended Operating Conditions
Over 0°C to 85°C
MIN NOM MAX UNIT
Digital supply voltage, DVDD1 and DVDD2 3 3.3 3.6 V
Analog supply voltage, AVDD and AVDD_PWM 3 3.3 3.6 V
3.3 V 2
V
IH
High-level input voltage 5-V tolerant
(1)
2 V
1.8-V LVCMOS (XTL_IN) 1.26
3.3 V 0.8
V
IL
Low-level input voltage 5-V tolerant
(1)
0.8 V
1.8-V (XTL_IN) 0.54
T
A
Operating ambient-air temperature range 0 25 85 °C
T
J
Operating junction temperature range 0 105 °C
(1) 5-V tolerant signals are SDA, SCL, RESET, PDN, MUTE, HP_SEL, SCLK, LRCLK, MCLK, SDIN1, SDIN2, SDIN3, and SDIN4
Copyright © 2012, Texas Instruments Incorporated Electrical Specifications 47
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