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ABSOLUTE MAXIMUM RATINGS

TPA0252

SLOS288B – JUNE 2000 – REVISED SEPTEMBER 2004

Terminal Functions

TERMINAL

I/O

DESCRIPTION

NAME

NO.

BYPASS

7

Tap to voltage divider for internal mid-supply bias generator

If a 47-nF capacitor is attached, the TPA0252 generates an internal clock. An external clock can override

CLK

6

I

the internal clock input to this terminal.

A momentary pulse on this terminal decreases the volume level by 2 dB. Holding the terminal low for a

DOWN

5

I

period of time steps the amplifier through the volume levels at a rate determined by the capacitor on the

CLK terminal.

GND

12, 24

I

Ground connection for circuitry. Connected to thermal pad

Input MUX control. When terminal is high, the LHPIN and RHPIN inputs are selected. When terminal is

HP/LINE

14

I

low, LLINEIN and RLINEIN inputs are selected.

LHPIN

19

I

Left-channel headphone input, selected when HP/LINE is held high

LIN

21

I

Common left input for fully differential input. AC ground for single-ended inputs

LLINEIN

20

I

Left-channel line negative input, selected when HP/LINE is held low

LOUT+

23

O

Left-channel positive output in BTL mode and positive in SE mode

LOUT–

1

O

Left-channel negative output in BTL mode and high impedance in SE mode

The input for PC beep mode. PC-BEEP is enabled when a > 1.5-V (peak-to-peak) square wave is input to

PC-BEEP

10

I

PC-BEEP.

3, 8

I

Power supply for output stage

RHPIN

17

I

Right channel headphone input, selected when HP/LINE is held high

RIN

15

I

Common right input for fully differential input. AC ground for single-ended inputs

RLINEIN

16

I

Right-channel line input, selected when HP/LINE is held low

ROUT+

13

O

Right-channel positive output in BTL mode and positive in SE mode

ROUT–

11

O

Right-channel negative output in BTL mode and high impedance in SE mode

Input and output MUX control. When this terminal is held high SE outputs are selected. When this

SE/BTL

22

I

terminal is held low BTL outputs are selected.

When held low, this terminal places the entire device, except PC-BEEP detect circuitry, in shutdown

SHUTDOWN

2

I

mode.

A momentary pulse on this terminal increases the volume level by 2 dB. Holding the terminal low for a

UP

4

I

period of time steps the amplifier through the volume levels at a rate determined by the capacitor on the

CLK terminal.

Volume control memory supply. Connect to system auxiliary that stays active when device is powered

VAUX

9

I

down.

18

I

Thermal Pad

Connect to ground. Must be soldered down in all applications to properly secure device on PC board.

6 V

Continuous total power dissipation

internally limited (see Dissipation Rating Table)

-40

°C to 85°C

-40

°C to 150°C

-65

°C to 85°C

Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds

260

°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.

3