TDA8946AJ 查看數據表（PDF） - NXP Semiconductors.

零件编号

产品描述 (功能)

生产厂家

TDA8946AJ

2 x 15 W BTL audio amplifier with DC gain control

NXP Semiconductors. 

TDA8946AJ

2 x 15 W BTL audio amplifier with DC gain control

Rev. 01 — 01 March 2002

M3D541

Product data

1. General description

The TDA8946AJ is a dual-channel audio power amplifier with DC gain control. It has

an output power of 2 × 15 W at an 8 Ω load and an 18 V supply. The circuit contains

two Bridge-Tied Load (BTL) amplifiers with an all-NPN output stage and

standby/mute logic. The overall gain can be adjusted from +30 dB down to −50 dB

using a DC control voltage. This feature can be used for volume control or for a preset

gain. The TDA8946AJ comes in a 17-pin DIL-bent-SIL (DBS) power package and is

pin compatible with the TDA8946J.

2. Features

s Gain/volume adjustment via a DC control pin

s Soft clipping

s Operating at a low supply voltage

s Standby and mute mode

s No on/off switching plops

s Low standby current

s High supply voltage ripple rejection

s Outputs short-circuit protected to ground, supply and across the load

s Thermally protected

s Printed-circuit board compatible with TDA8944AJ and TDA8580J.

3. Applications

s Mains fed applications (e.g. TV sound)

s PC audio

s Portable audio.

4. Quick reference data

Table 1: Quick reference data

Symbol Parameter

VCC

supply voltage

Iq

quiescent supply current

Istb

standby supply current

Po

output power

THD total harmonic distortion

Conditions

VCC = 18 V; RL = ∞

THD = 10%; RL = 8 Ω;

VCC = 18 V

Po = 1 W

Min Typ Max Unit

4.5 18 18 V

-

45 55 mA

-

-

10 µA

13 15 -

W

-

0.07 0.5 %

Share Link: