MAX98360B

Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

One-of-a-Kind Filterless, High-Performance Class-D Amplifier in a Tiny WLP Package with no Vias or Programming Required


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说明

The MAX98360A/B/C/D is an easy-to-use, low-cost, digital pulse-code modulation (PCM) input Class-D amplifier that provides industry-leading, Class-AB audio performance with Class-D efficiency. The digital audio interface automatically recognizes different PCM and TDM clocking schemes which eliminates the need for I2C programming. Simply supply power, LRCLK, BCLK, and digital audio to generate audio. Furthermore, a novel pinout allows customers to use the cost-effective WLP package with no need for expensive vias.

The digital audio interface is highly flexible. The devices support I2S, left-justified, and 8-channel time division multiplexed (TDM) data formats. The digital audio interface accepts 8kHz, 16kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz, and 96kHz sample rates. Data words can be 16-bit, 24-bit, or 32-bit in I2S and left-justified modes and 16-bit or 32-bit in TDM mode.

Digital audio interface input thresholds are ideal for interfacing to 1.2V and 1.8V logic. The devices can tolerate logic input voltages up to 5.5V.

The MAX98360A and MAX98360B have fast 1ms turn-on times while the MAX98360C and MAX98360D ramp the volume over 13ms during turn-on and turn-off.

The devices eliminate the need for the external MCLK signal that is typically used for PCM communication. This reduces EMI and possible board coupling issues in addition to reducing the size and pin count. The devices also feature a very high wideband jitter tolerance (12ns, typ) on BCLK and LRCLK to provide robust operation.

Active emissions-limiting, edge-rate limiting, and overshoot control circuitry greatly reduce EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class-D devices and reduces the component count of the solution.

The devices are specified over the -40°C to +85°C temperature range.

MAX98360 Version Management

Ramping Frame Sync Pulse on LRCLK 50% Duty Cycle on LRCLK
Turn-On/Off Ramp Start-Up Time Format BCLK Active Edge Format BCLK Active Edge
MAX98360A Ramp Disabled 1ms TDM rising I2S rising
MAX98360B Ramp Disabled 1ms TDM falling LJ rising
MAX98360C Ramp Enabled 13ms TDM rising I2S rising
MAX98360D Ramp Enabled 13ms TDM falling LJ rising
MAX98360A, MAX98360B, MAX98360C, MAX98360D: Functional Diagram MAX98360A, MAX98360B, MAX98360C, MAX98360D: Functional Diagram 放大+

关键特性

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V
  • 2.2mA Quiescent Current
  • 1ms Turn-On Time (for MAX98360A and MAX98360B)
  • 92% Efficiency (RL = 8Ω, THD+N = 10%)
  • 10μVRMS Output Noise
  • 110dB Dynamic Range
  • Low 0.009% THD+N at 1kHz
  • No MCLK Required
  • Sample Rates of 8kHz to 96kHz
  • Supports Left, Right, or (Left/2 + Right/2) Output in I2S and Left-Justified Modes
  • Sophisticated Edge Rate Control Enables Filterless Class-D Outputs
  • 81dB PSRR at 217Hz
  • 1.5μA Standby Current Allows Elimination of GPIO for EN Pin
  • Low RF Susceptibility Rejects TDMA Noise from GSM Radios
  • Class-D Switching Frequency Trimmed to 5% for Better EMI Planning
  • Extensive Click-and-Pop Reduction Circuitry
  • Robust Short-Circuit and Thermal Protection
  • Available in Space-Saving Package: 9-Pin WLP (0.4mm Pitch) or 10-Pin FC2QFN (0.5mm Pitch)
  • 3.69mm2 Solution Size for WLP With A Single Bypass Capacitor

应用

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Part NumberClassSpkr. Amp. VCC
(V)
Spkr. Amp. VCC
(V)
Spkr. Amp. ICC
(mA)
POUT into 4Ω @ 1% THD+N
(W)
POUT into 4Ω @ 10% THD+N
(W)
POUT into 8Ω @ 1% THD+N
(W)
POUT into 8Ω @ 10% THD+N
(W)
Spkr. Amp. Half Pwr. THD+N
(%)
SNR
(dB)
PSRR
(dB)
Package/PinsBudgetary
Price
minmaxtypminminminminA- WeightedminSee Notes
MAX98360A NEW!D2.55.522.53.21.41.80.00611080
FC2QFN/10
THIN WLP/9
$0.92 @1k
MAX98360B NEW!
FC2QFN/10
THIN WLP/9
MAX98360C NEW!
FC2QFN/10
THIN WLP/9
MAX98360D NEW!
FC2QFN/10
THIN WLP/9
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Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。


MAX98360AEVSYS-WLP: Evaluation Kit for the MAX98360A/MAX98360B/MAX98360C/MAX98360D
MAX98360BEVSYS-WLP: Evaluation Kit for the MAX98360A/MAX98360B/MAX98360C/MAX98360D
MAX98360CEVSYS-WLP: Evaluation Kit for the MAX98360A/MAX98360B/MAX98360C/MAX98360D
MAX98360DEVSYS-WLP: Evaluation Kit for the MAX98360A/MAX98360B/MAX98360C/MAX98360D

质量和环境数据

申请可靠性报告: MAX98360B 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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相关资料


MAX98360A
Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V

MAX98360B
Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V

MAX98360C
Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V

MAX98360D
Tiny, Cost-Effective, Plug-and-Play Digital Class-D Amplifier

  • Simple Plug-and-Play Design
  • Single-Supply Operation (2.5V to 5.5V)
  • 3.2W Output Power into 4Ω at 5V