TDA8946AJ/N2,112 NXP Semiconductors, TDA8946AJ/N2,112 Datasheet - Page 4

• Manufacturer Part Number: TDA8946AJ/N2,112
• Description: IC AMP AUDIO PWR 15W STER 17SIL
• Manufacturer: NXP Semiconductors
• Type: Class ABr

Specifications of TDA8946AJ/N2,112

• Output Type: 2-Channel (Stereo)
• Package / Case: 17-SIL (Bent and Staggered Leads)
• Max Output Power X Channels @ Load: 15W x 2 @ 8 Ohm
• Voltage - Supply: 4.5 V ~ 18 V
• Features: Depop, Mute, Short-Circuit and Thermal Protection, Standby
• Mounting Type: Through Hole
• Product: Class-AB
• Output Power: 15 W
• Available Set Gain: 30 dB
• Thd Plus Noise: 0.07 %
• Operating Supply Voltage: 18 V
• Maximum Power Dissipation: 28000 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Audio Load Resistance: 8 Ohms
• Input Signal Type: Differential
• Minimum Operating Temperature: - 40 C
• Output Signal Type: Differential
• Supply Type: Single
• Supply Voltage (max): 18 V
• Supply Voltage (min): 4.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 568-3456-5; 935270283112; TDA8946AJU

Philips Semiconductors
8. Functional description
9397 750 09434
Product data
8.1 Input configuration
Table 3:
The TDA8946AJ is a stereo BTL audio power amplifier capable of delivering 2
output power to an 8
external heatsink. The gain of both amplifiers can be adjusted using a DC control
voltage (pin GC). This feature can be used for volume control or a preset gain.
With the three-level MODE input the device can be switched from ‘standby’ to ‘mute’
and to ‘operating’ mode.
The TDA8946AJ outputs are protected by an internal thermal shutdown protection
mechanism and a short-circuit protection.
The TDA8946AJ inputs can be driven symmetrical (floating) as well as asymmetrical.
In the asymmetrical mode (see
the signal source and the other input is connected to the signal ground. The signal
ground should be as close as possible to the SVR (electrolytic) capacitor ground.
Note that the DC level of the input pins is half of the supply voltage V
capacitors for both pins are necessary.
Symbol
GC
OUT2
GND2
V
OUT2
Fig 3. Asymmetrical input configuration.
CC2
Pin description
Pin
13
14
15
16
17
handbook, halfpage
Rev. 01 — 01 March 2002
source
signal
load at THD = 10%, using a 18 V power supply and an
…continued…continued
Description
DC gain control
negative loudspeaker terminal 2
ground channel 2
supply voltage channel 2
positive loudspeaker terminal 2
Figure
2 x 15 W BTL audio amplifier with DC gain control
3) one input pin is connected via a capacitor to
IN
IN
SVR
ground
signal
V CC
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
power
ground
MGW610
TDA8946AJ
CC
, so coupling
15 W
4 of 20