TDA8944JN1 NXP Semiconductors, TDA8944JN1 Datasheet

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TDA8944JN1

Manufacturer Part Number
TDA8944JN1
Description
Manufacturer
NXP Semiconductors
Datasheet

Specifications of TDA8944JN1

Operational Class
Class-AB
Audio Amplifier Output Configuration
2-Channel Stereo
Output Power (typ)
7x2@8OhmW
Audio Amplifier Function
Speaker
Total Harmonic Distortion
0.03@8Ohm@1W%
Single Supply Voltage (typ)
12V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Requirement
Single
Power Dissipation
18W
Rail/rail I/o Type
No
Single Supply Voltage (min)
6V
Single Supply Voltage (max)
18V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Through Hole
Pin Count
17
Lead Free Status / RoHS Status
Compliant
1. General description
2. Features
3. Applications
4. Quick reference data
c
c
The TDA8944J is a dual-channel audio power amplifier with an output power of
2
(BTL) amplifiers with an all-NPN output stage and standby/mute logic. The TDA8944J
comes in a 17-pin DIL-bent-SIL (DBS) power package. The TDA8944J is
printed-circuit board (PCB) compatible with all other types in the TDA894x family.
One PCB footprint accommodates both the mono and the stereo products.
Table 1:
Symbol Parameter
V
I
I
q
stb
CC
TDA8944J
2 x 7 W stereo Bridge Tied Load (BTL) audio amplifier
Rev. 02 — 14 February 2000
Few external components
Fixed gain
Standby and mute mode
No on/off switching plops
Low standby current
High supply voltage ripple rejection
Outputs short-circuit protected to ground, supply and across the load
Thermally protected
Printed-circuit board compatible.
Mains fed applications (e.g. TV sound)
PC audio
Portable audio.
7 W at an 8
supply voltage
quiescent supply current
standby supply current
Quick reference data
load and a 12 V supply. The circuit contains two Bridge Tied Load
Conditions
V
CC
= 12 V; R
L
=
Min
6
-
-
Product specification
Typ
12
24
-
Max
18
36
10
Unit
V
mA
A

Related parts for TDA8944JN1

TDA8944JN1 Summary of contents

Page 1

TDA8944J stereo Bridge Tied Load (BTL) audio amplifier Rev. 02 — 14 February 2000 1. General description The TDA8944J is a dual-channel audio power amplifier with an output power ...

Page 2

Philips Semiconductors Table 1: Symbol Parameter P o THD G v SVRR 5. Ordering information Table 2: Type number Package TDA8944J 6. Block diagram idth Fig 1. Block diagram. 9397 750 06861 Product specification Quick reference data …continued Conditions output ...

Page 3

Philips Semiconductors 7. Pinning information 7.1 Pinning Fig 2. Pin configuration. 7.2 Pin description Table 3: Symbol OUT1 GND1 V CC1 OUT1 n.c. IN1 n.c. IN1 IN2 MODE SVR IN2 9397 750 06861 Product specification handbook, halfpage OUT1 1 GND1 ...

Page 4

Philips Semiconductors Table 3: Symbol n.c. OUT2 GND2 V CC2 OUT2+ 8. Functional description The TDA8944J is a stereo BTL audio power amplifier capable of delivering 2 output power external heatsink. The voltage gain is fixed at ...

Page 5

Philips Semiconductors 8.2 Power amplifier The power amplifi Bridge Tied Load (BTL) amplifier with an all-NPN output stage, capable of delivering a peak output current The BTL principle offers the following advantages: • Lower peak ...

Page 6

Philips Semiconductors Mute — In this mode the amplifier is DC-biased but not operational (no audio output); the DC level of the input and output pins remain on half the supply voltage. This allows the input coupling and Supply Voltage ...

Page 7

Philips Semiconductors 9. Limiting values Table 5: Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter V supply voltage CC V input voltage I I repetitive peak output current ORM T storage temperature stg T ...

Page 8

Philips Semiconductors 50 handbook, halfpage I q (mA Fig 3. Quiescent current as function of supply voltage. 12. Dynamic characteristics Table 8: Dynamic characteristics ...

Page 9

Philips Semiconductors 10 handbook, full pagewidth Fig 5. Output voltage as function of mode voltage handbook, halfpage THD (%) ...

Page 10

Philips Semiconductors 20 handbook, halfpage THD = 10%. Fig 8. Output power as function of supply voltage. 100 handbook, halfpage (%) ...

Page 11

Philips Semiconductors handbook, halfpage No bandpass filter applied. Fig 12. Channel separation as function of frequency. 0 handbook, full pagewidth SVRR (dB ...

Page 12

Philips Semiconductors 13. Internal circuitry Table 9: Pin 6 and 8 12 and 9 1 and 4 14 and 9397 750 06861 Product specification Internal circuitry Symbol Equivalent circuit IN1+ and IN1 IN2+ and IN2 8, 9 ...

Page 13

Philips Semiconductors 14. Application information 220 Symmetrical C i input 220 nF 220 Asymmetrical C i input 220 nF signal GND MICROCONTROLLER C2 MODE C1 C2 Standby 0 0 Mute 0 ...

Page 14

Philips Semiconductors idth Fig 15. Printed-circuit board layout (single-sided); components view. 14.1.2 Power supply decoupling Proper supply bypassing is critical for low-noise performance and high supply voltage ripple rejection. The respective capacitor locations should be as close as possible to ...

Page 15

Philips Semiconductors 14.2 Thermal behaviour and heatsink calculation The measured maximum thermal resistance of the IC package calculation for the heatsink can be made, with the following parameters: T amb(max j(max) R th(tot) including the ...

Page 16

Philips Semiconductors 16. Package outline DBS17P: plastic DIL-bent-SIL power package; 17 leads (lead length 12 mm DIMENSIONS (mm are the original dimensions) (1) UNIT 17.0 4.6 ...

Page 17

Philips Semiconductors 17. Soldering 17.1 Introduction to soldering through-hole mount packages This text gives a brief insight to wave, dip and manual soldering. A more in-depth account of soldering ICs can be found in our Data Handbook IC26; Integrated Circuit ...

Page 18

Philips Semiconductors 18. Revision history Table 11: Revision history Rev Date CPCN Description 02 000214 - Product specification; second version; supersedes initial version TDA8944J- April 1999 (9397 750 04881). Modifications: • Table 1 on page • Figure 1 ...

Page 19

Philips Semiconductors 19. Data sheet status Datasheet status Product status Definition Objective specification Development This data sheet contains the design target or goal specifications for product development. Specification may change in any manner without notice. Preliminary specification Qualification This data ...

Page 20

Philips Semiconductors Philips Semiconductors - a worldwide company Argentina: see South America Australia: Tel. +61 2 9704 8141, Fax. +61 2 9704 8139 Austria: Tel. +43 160 101, Fax. +43 160 101 1210 Belarus: Tel. +375 17 220 0733, Fax. ...

Page 21

Philips Semiconductors Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features . . . . . . . . . ...

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