TAS5508 datasheet(55/105 Pages) TI

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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

Operating free-air temperature

＝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

TAS5111 at 1 W

0.1%

Total harmonic distortion

TAS5508 ouput

0.01%

32-kHz to 96-kHz sample rates

＝0.1

Frequency response

176.4, 192-kHz sample rates

＝0.2

MIN

NOM

MAX

UNIT

Digital supply voltage, DVDD and DVDD_PWM

3.3

3.6

Analog supply voltage, AVDD_PLL

3.3

3.6

3.3 V

VIH

High-level input voltage

5-V tolerant(1)

1.8-V LVCMOS (XTL_IN)

1.26

3.3 V

0.8

VIL

Low-level input voltage

5-V tolerant(1)

0.8

1.8-V (XTL_IN)

0.54

Operating ambient-air temperature range

＝C

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.

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Electrical Specifications

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