TDA8922C View Datasheet(PDF) - NXP Semiconductors.

Part Name

Description

Manufacturer

TDA8922C

2×75 W class-D power amplifier

NXP Semiconductors. 

NXP Semiconductors

TDA8922C

2 × 75 W class-D power amplifier

[1] Rs(L) is the series resistance of the low-pass LC filter inductor used in the application.

[2] Output power is measured indirectly; based on RDSon measurement; see Section 13.3.

[3] THD measured between 22 Hz and 20 kHz, using AES17 20 kHz brick wall filter; max. limit is guaranteed but may not be 100 % tested.

[4] Vripple = Vripple(max) = 2 V (p-p); measured independently between VDDPn and SGND and between VSSPn and SGND.

[5] 22 Hz to 20 kHz, using AES17 20 kHz brick wall filter.

[6] 22 Hz to 20 kHz, using AES17 20 kHz brick wall filter.

[7] Po = 1 W; fi = 1 kHz.

[8] Vi = Vi(max) = 1 V (RMS); fi = 1 kHz.

[9] Leads and bond wires included.

12.3 Mono BTL application characteristics

Table 11. Dynamic characteristics

VDD = 25 V; VSS = −25 V; RL = 8 Ω; fi = 1 kHz; fosc = 350 kHz; Rs(L) < 0.1 Ω [1]; Tamb = 25 °C; unless otherwise specified.

Symbol Parameter

Conditions

Min Typ Max Unit

Po

output power

Tj = 85 °C; LLC = 22 µH; CLC = 680 nF [2]

(see Figure 10)

THD = 0.5 %; RL = 8 Ω

- 115 - W

THD

total harmonic distortion

THD = 10 %; RL = 8 Ω

Po = 1 W; fi = 1 kHz

Po = 1 W; fi = 6 kHz

- 155 - W

[3] -

0.02 -

%

[3] -

0.05 -

%

Gv(cl)

closed-loop voltage gain

- 36 - dB

SVRR supply voltage rejection ratio

between pin VDDPn and SGND

Operating mode; fi = 100 Hz

Operating mode; fi = 1 kHz

Mute mode; fi = 100 Hz

Standby mode; fi = 100 Hz

[4] -

72 -

dB

[4] -

64 -

dB

[4] -

86 -

dB

[4] -

100 -

dB

between pin VSSPn and SGND

Operating mode; fi = 100 Hz

Operating mode; fi = 1 kHz

Mute mode; fi = 100 Hz

Standby mode; fi = 100 Hz

[4] -

72 -

dB

[4] -

72 -

dB

[4] -

86 -

dB

[4] -

100 -

dB

Zi

input impedance

measured between one of the input

pins and SGND

45 63 - kΩ

Vn(o)

output noise voltage

Operating mode; Rs = 0 Ω

Mute mode

[5] -

190 -

µV

[6] -

45 -

µV

αmute

mute attenuation

fi = 1 kHz; Vi = 2 V (RMS)

[7] -

75 -

dB

CMRR common mode rejection ratio

Vi(CM) = 1 V (RMS)

- 75 - dB

[1] Rs(L) is the series resistance of the low-pass LC filter inductor used in the application.

[2] Output power is measured indirectly; based on RDSon measurement; see Section 13.3.

[3] THD measured between 22 Hz and 20 kHz, using AES17 20 kHz brick wall filter; max. limit is guaranteed but may not be 100 % tested.

[4] Vripple = Vripple(max) = 2 V (p-p).

[5] 22 Hz to 20 kHz, using an AES17 20 kHz brick wall filter; low noise due to BD modulation.

[6] 22 Hz to 20 kHz, using an AES17 20 kHz brick wall filter.

[7] Vi = Vi(max) = 1 V (RMS); fi = 1 kHz.

TDA8922C_1

Product data sheet

Rev. 01 — 7 September 2009

© NXP B.V. 2009. All rights reserved.

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