Philips TDA8922 Datasheet
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Philips TDA8922 Datasheet

Philips TDA8922 Datasheet

2×25 w class-d power amplifier
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INTEGRATED CIRCUITS
DATA SHEET
TDA8922
2 × 25 W class-D power amplifier
Objective specification
2003 Mar 20

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Summary of Contents for Philips TDA8922

  • Page 1 INTEGRATED CIRCUITS DATA SHEET TDA8922 2 × 25 W class-D power amplifier Objective specification 2003 Mar 20...

  • Page 2: Table Of Contents

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 CONTENTS PACKAGE OUTLINE SOLDERING FEATURES 18.1 Introduction APPLICATIONS 18.2 Through-hole mount packages GENERAL DESCRIPTION 18.2.1 Soldering by dipping or by solder wave 18.2.2 Manual soldering QUICK REFERENCE DATA 18.3...

  • Page 3: Features

    • Fixed gain of 30 dB in Single-Ended (SE) and 36 dB in GENERAL DESCRIPTION Bridge-Tied Load (BTL) The TDA8922 is a high efficiency class-D audio power • High output power amplifier with very low dissipation. The typical output • Good ripple rejection power is 2 ×...

  • Page 4: Block Diagram

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 BLOCK DIAGRAM V DDP2 V DDP1 V DDA2 V DDA1 handbook, full pagewidth STABI PROT 3 (20) 10 (4) 18 (12) 13 (7) 23 (16) 14 (8) 15 (9)

  • Page 5: Pinning

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 PINNING SYMBOL DESCRIPTION TDA8922TH TDA8922J negative analog supply voltage for channel 2 SSA2 SGND2 signal ground for channel 2 positive analog supply voltage for channel 2 DDA2 IN2−...
  • Page 6 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 handbook, halfpage IN1+ IN1− V DDA1 SGND1 V SSA1 handbook, halfpage PROT V SSD V SSA2 V DDP1 V DDP2 SGND2 BOOT1 BOOT2 V DDA2 OUT1 OUT2 IN2−...

  • Page 7: Functional Description

    MODE: General • Standby mode; with a very low supply current The TDA8922 is a two channel audio power amplifier using • Mute mode; the amplifiers are operational, but the audio class-D technology. A detailed application reference signal at the output is suppressed design is shown in Fig.10.
  • Page 8 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 audio handbook, full pagewidth switching V mode operating mute standby 0 V (SGND) time 100 ms >50 ms audio switching V mode operating standby 0 V (SGND) time...

  • Page 9: Pulse Width Modulation Frequency

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 Pulse width modulation frequency 8.3.2 HORT CIRCUIT ACROSS LOUDSPEAKER TERMINALS AND TO SUPPLY LINES The output signal of the amplifier is a PWM signal with a carrier frequency of approximately 350 kHz. Using a...

  • Page 10: Differential Audio Inputs

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 8.3.4 Differential audio inputs UPPLY VOLTAGE ALARM If the supply voltage drops below ±12.5 V, the For a high common mode rejection ratio and a maximum undervoltage protection circuit is activated and the system of flexibility in the application, the audio inputs are fully will shut down correctly.

  • Page 11: Limiting Values

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 60134). SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT − ±30 supply voltage − input voltage on pin MODE...

  • Page 12: Static Characteristics

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 12 STATIC CHARACTERISTICS = ±25 V; T = 25 °C; measured in Fig.10; unless otherwise specified. SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT Supply ±12.5 ±20 ±30 supply voltage note 1 −...

  • Page 13: Switching Characteristics

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 MBL467 handbook, full pagewidth STBY MUTE V MODE (V) Fig.7 Behaviour of mode selection pin MODE. 13 SWITCHING CHARACTERISTICS = ±25 V; T = 25 °C; measured in Fig.10; unless otherwise specified.

  • Page 14: Dynamic Ac Characteristics (Stereo

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 14 DYNAMIC AC CHARACTERISTICS (STEREO AND DUAL SE APPLICATION) = ±20 V; R = 8 Ω; f < 0.1 Ω (note 1); T = 25 °C; measured in Fig.10; unless = 1 kHz;...

  • Page 15: Btl Application

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 8. B = 22 Hz to 22 kHz; independent of R = 0 Ω; f 9. P = 1 W; R = 1 kHz. 10. V = 1 V (RMS); maximum limit is guaranteed, but may not be 100% tested.

  • Page 16: Output Power Estimation

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 16 APPLICATION INFORMATION × × × --------------------- – 16.1 BTL application BTL: --------------------------------------------------------------------------------------------- × o(1%) When using the power amplifier in a mono BTL application (for more output power), the inputs of both channels must...

  • Page 17: Heatsink Requirements

    To guarantee the robustness of the class-D amplifier the th(j-a) th(j-c) of the TDA8922 is 1.3 K/W, thus a heatsink of 20.1 K/W is maximum output current which can be delivered by the required for this example. output stage is limited. An overcurrent protection is included for each output power switch.

  • Page 18: Pumping Effects

    TDA8922 To trigger the maximum current protection in the 16.7 Pumping effects TDA8922, the required output current must exceed 4 A. The TDA8922 class-D amplifier is supplied by a This situation occurs in case of: = −25 V). symmetrical voltage (e.g V = +25 V and V •...
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  • Page 20 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 PCB version 4 1-2002 − Out2 + − Out1 + V DD GND V SS TDA8920/21/22/23/24TH state of D art Top silk screen Top copper PHILIPS SEMICONDUCTORS MBL496...

  • Page 21: Bill Of Materials For Reference Design

    Table 1 Single-chip class-D audio amplifier printed-circuit board (PCB version 4; 1-2002) for TDA8922TH (see Figs 10 and 11). BOM ITEM QUANTITY REFERENCE PART DESCRIPTION TDA8922TH Philips Semiconductors B.V. in1 and in2 cinch inputs Farnell 152-396 out1 and out2 output connector Augat 5KEV-02...

  • Page 22: Curves Measured In Reference Design

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 16.12 Curves measured in reference design The curves illustrated in Figs 30 and 31 show the effects of supply pumping when only one single-ended channel is The curves illustrated in Figs 20 and 21 are measured with driven with a low frequency signal;...
  • Page 23 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 MGX325 MGX328 handbook, halfpage handbook, halfpage THD + N THD + N −1 −1 −2 −2 −3 −3 −2 −1 P o (W) f i (Hz) 2 × 4 Ω SE; V = ±15 V.
  • Page 24 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 MGX332 MGX333 handbook, halfpage handbook, halfpage η P diss −2 −1 P o (W) P o (W) = 1 kHz. (1) 2 × 4 Ω SE, V = ±15 V.
  • Page 25 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 MGX331 MGX330 handbook, halfpage handbook, halfpage α α (dB) (dB) −20 −20 −40 −40 −60 −60 −80 −80 −100 −100 f i (Hz) f i (Hz) 2 × 8 Ω SE; V = ±20 V.
  • Page 26 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 MGX338 MGX339 handbook, halfpage handbook, halfpage f clk (mA) (kHz) V DD (V) V DD (V) = ∞. = ∞. Fig.26 Quiescent current as a function of supply Fig.27 Clock frequency as a function of supply...
  • Page 27 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 MGX334 MGX335 handbook, halfpage handbook, halfpage V ripple(p-p) V ripple(p-p) −2 −1 P o (W) f i (Hz) 3000 µF per supply line; f 3000 µF per supply line.
  • Page 28 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 MGX345 MGX343 1000 handbook, halfpage handbook, halfpage V res(rms) (mV) f clk (kHz) f clk (kHz) = ±20 V; R = 8 Ω. = ±20 V; R = 8 Ω; f = 1 kHz;...
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  • Page 31: Package Outline

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 17 PACKAGE OUTLINES HSOP24: plastic, heatsink small outline package; 24 leads; low stand-off height SOT566-3 pin 1 index (A 3 ) θ detail X 10 mm scale DIMENSIONS (mm are the original dimensions) θ...
  • Page 32 Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 DBS23P: plastic DIL-bent-SIL power package; 23 leads (straight lead length 3.2 mm) SOT411-1 non-concave view B: mounting base side β 10 mm scale DIMENSIONS (mm are the original dimensions) β...

  • Page 33: Soldering

    Philips Semiconductors Objective specification 2 × 25 W class-D power amplifier TDA8922 18 SOLDERING 18.3.2 AVE SOLDERING 18.1 Introduction Conventional single wave soldering is not recommended for surface mount devices (SMDs) or printed-circuit boards This text gives a very brief insight to a complex technology.

  • Page 34: Suitability Of Ic Packages For Wave, Reflow And Dipping Soldering Methods

    1. For more detailed information on the BGA packages refer to the “(LF)BGA Application Note ” (AN01026); order a copy from your Philips Semiconductors sales office. 2. All surface mount (SMD) packages are moisture sensitive. Depending upon the moisture content, the maximum temperature (with respect to time) and body size of the package, there is a risk that internal or external package cracks may occur due to vaporization of the moisture in them (the so called popcorn effect).

  • Page 35: Data Sheet Status

    2. The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at URL http://www.semiconductors.philips.com. 3. For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.
  • Page 36 Contact information For additional information please visit http://www.semiconductors.philips.com. Fax: +31 40 27 24825 For sales offices addresses send e-mail to: sales.addresses@www.semiconductors.philips.com. © Koninklijke Philips Electronics N.V. 2003 SCA75 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

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