TAS3218IPZP datasheet(41/79 Pages) TI

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ABSOLUTE MAXIMUM RATINGS

(1)

PACKAGE DISSIPATION RATINGS

(1) (2)

RECOMMENDED OPERATING CONDITIONS

TAS3218

www.ti.com ....................................................................................................................................................................................................... SLES235 – JULY 2008

MIN

MAX

UNIT

DVDD

Supply voltage range

0.5

3.8

AVDD

Supply voltage range

0.5

3.8

3.3-V TTL

0.5

VDDS + 0.5

Input voltage range

3.3-V Analog

0.5

AVDDS + 0.5

1.8-V LVCMOS

0.5

AVDD(2) + 0.5

3.3-V TTL

0.5

VDDS + 0.5

3.3-V Analog

0.5

AVDDS + 0.5

Output voltage range

0.5

DVDD(3) + 0.5

1.8-V LVCMOS

0.5

AVDD(4) + 0.5

IIK

Input clamp current

(VI < 0 or VI > DVDD)

IOK

Output clamp current

(VO < 0 or VO > DVDD)

Tstg

Storage temperature range

150

Lead temperature 1.6 mm (1/16 inch) from case for 10 seconds

260

(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)

AVDD is an internal 1.8-V supply derived from a regulator in the TAS3218 chip. Pin XTALI is the only TAS3218 input that is referenced

to this 1.8-V logic supply. The absolute maximum rating listed is for reference; only a crystal should be connected to XTALI.

(3)

DVDD is an internal 1.8-V supply derived from regulators in the TAS3218 chip. DVDD is routed to DVDD_BYPASS_CAP to provide

access to external filter capacitors, but should not be used to source power to external devices.

(4)

Pin XTALO is the only TAS3218 output that is derived from the internal 1.8-V logic supply AVDD. The absolute maximum rating listed is

for reference; only a crystal should be connected to XTALO. AVDD is also routed to AVDD_BYPASS_CAP to provide access to external

filter capacitors, but should not be used to source power to external devices.

PACKAGE

TA 25C POWER RATING

DERATING FACTOR ABOVE TA = 25C

TA = 70C POWER RATING

TQFP PZP

2.78 W

28.7C/W

1.22 W

(1)

High-K Board, 105C junction

(2)

Refer to PowerPAD™ Thermally Enhanced Package Application Report (literature number SLMA002).

PARAMETER

MEASUREMENT

MIN

NOM

MAX

UNIT

DVDD

Digital supply voltage

3.3

3.6

AVDD

Analog supply voltage

3.3-V Analog

3.3

3.6

3.3-V TTL

VIH

High-level input voltage

1.8-V LVCMOS (XTL_IN)

1.26

1.95

3.3-V TTL

0.8

VIL

Low-level input voltage

1.8-V LVCMOS (XTL_IN)

0.54

Operating ambient air temperature range

(guarantying parametric)

Operating junction temperature range

105

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