TDF8599BTH datasheet(30/54 Pages) NXP

30 / 54 page

TDF8599B_1

Product data sheet

Rev. 01 — 29 July 2009

30 of 54

NXP Semiconductors

TDF8599B

I2C-bus controlled dual channel class-D power ampliﬁer

[1]

Required resistor accuracy for pins ADS and MOD is 1 %; see Section 9 on page 23.

[2]

Maximum leakage current from DCP pin to ground = 3

µA.

[3]

The output offset values can be either positive or negative. The Vth(offset) limit values (excluding Typ) are the valid absolute values.

[4]

DC output offset voltage is applied to the output gradually during the transition between Mute mode and Operating mode.

[5]

I2C-bus mode only.

[6]

The transition time between Mute mode and Operating mode is determined by the time constant on the SEL_MUTE pin.

[7]

The DC load valid bit DB1[D6] must be used; Section 8.6.2.1 on page 18. The DC load enable bit IB2[D2] must be reset after each load

detection cycle to prevent ampliﬁer hang-up incidents.

Start-up/shut-down/mute timing

twake

wake-up time

on pin EN before ﬁrst I2C-bus

transmission is recognized

[5] -

500

µs

tdet(DCload)

DC load detection time

CON = 470 nF

[5] -

380

td(stb-mute)

delay time from standby to

mute

measured from ampliﬁer enabling

to start of unmute (no DC load

detection); CSVRR =47 µF

CON = 470 nF

140

td(mute-fgain)

mute to full gain delay time

CON = 470 nF

[6] -15

delay time

shutdown delay time from EN pin

LOW to SVRR LOW; voltage on

pin SVRR < 0.1 V; CSVRR =47 µF

200

350

550

shutdown delay time from EN pin

LOW to SVRR LOW; voltage on

pin SVRR < 0.1 V; CSVRR =47 µF;

VP =35V

300

400

700

shutdown hold delay time from pin

EN LOW to ACGND LOW; voltage

on pin ACGND < 0.1 V; Master

mode

370

hold delay in Master mode to allow

slaved devices to shutdown

fosc = 320 kHz

-50

Speaker load impedance

load resistance

at supply voltage equal to or below

24 V

stereo mode

1.6

Ω

parallel mode

0.8

Ω

Table 19.

Static characteristics …continued

VP =VDDA = 14.4 V; fosc = 320 kHz; −40 °C < Tamb < +85 °C; unless otherwise speciﬁed.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

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