Datasheet

TAS5508C
www.ti.com SLES257–SEPTEMBER 2010
4 Electrical Specifications
4.1 Absolute Maximum Ratings
(1)
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
I
IK
Input clamp current (V
I
< 0 or V
I
> 1.8 V ±20 mA
I
OK
Output clamp current (V
O
< 0 or V
O
> 1.8 V) ±20 mA
T
A
Operating free-air temperature 0°C to 70°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, 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 TAS5508C 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.
4.2 Dissipation Rating Table (High-k Board, 105°C Junction)
T
A
≤ 25°C DERATING FACTOR T
A
= 70°C
PACKAGE
POWER RATING ABOVE T
A
= 25°C POWER RATING
PAG 1869 mW 23.36 mW/°C 818 mW
4.3 Dynamic Performance At Recommended Operating Conditions at 25°C
PARAMETER TEST CONDITIONS MIN NOM MAX UNIT
Dynamic range 32 kHz to 192 kHz TAS5508C + TAS5111 A-weighted 102 dB
TAS5111 at 1 W 0.1%
Total harmonic distortion
TAS5508C ouput 0.01%
32-kHz to 96-kHz sample rates ±0.1
Frequency response dB
176.4, 192-kHz sample rates ±0.2
4.4 Recommended Operating Conditions
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
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 70 °C
T
J
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.
Copyright © 2010, Texas Instruments Incorporated Electrical Specifications 55
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