TAS5755M (ACTIVE)

2x50W(2x19W + 1x50W) Digital Input Class-D Audio Amplifier with Processing and 2.1 Mode Support

 

Description

The TAS5755M is a single-chip flexible digital audio solution with integrated processing that supports 2.1 (2 speakers + subwoofer), 2.0 or stereo (2 speakers) and mono (high power speaker) modes.

Its high efficiency, low 80mΩ RDSON and pad-up package allow the device to output up to 2 × 50W or 1 × 100W.

TAS5755M leverages 2 full H-bridges which are used for each channel in stereo mode. In 2.1 mode, TAS5755M runs 2 independent speaker channels using 2 half-bridges while using a full-bridge to drive a subwoofer. Finally, in mono mode, TAS5755M supports pre-filter parallel bridge tied load (PBTL) using only one filter stage to reduce total system size and cost.

TAS5755M has integrated audio processing. It includes: signal mixing, DC blocking filters, 2 × 8 + 1 × 2 biquads for equalization. Power limiting is implemented by leveraging a two-band log-style DRC and a separate single-band DRC for the subwoofer channel.

Features

  • Reduced solution size and BOM cost:
    • Single-chip 2.1,2.0 and mono mode capable.
    • Single-filter in mono (PBTL) mode.
    • Pad-up package and 80mΩ RDSON enhances thermal performance
  • High Output Power capable:
    • 2 × 19W +1 × 50W in 2.1 mode (2 × 4Ω + 1 × 6Ω, 24V)
    • 2 × 50W in 2.0 mode (2 × 6Ω, 24V)
    • 1 × 100W in mono mode (1 × 2Ω, 24V)
    • Wide Voltage Range: 8V to 26.4V
  • Audio Performance Audio:
    • THD+N ≤ 0.05% @ 1 kHz (RSPK = 8 Ω, POUT = 1 W, PVDD=18V)
    • ICN ≤ 50 µVRMS
    • Crosstalk ≤ - 67 dB
    • SNR ≥ 104 dB
    • BD modulation available, for improved audio performance and efficiency.
  • Integrated Audio Processing:
    • 2 × 8 + 1 × 2 Biquads
    • Two-band + Single-band configurable Dynamic Range Control (DRC)
    • License-Free 3D Effects
    • Signal Mixing and DC blocking filter
    • Automatic Rate Detection
  • Integrated self-protection
    • Thermal protection
    • Over-current limit protection
    • Under-voltage protection

All trademarks are the property of their respective owners.

View more

Parametrics Compare all products in Digital I2S Input Class-D

 
Speaker Channels (Max)
Power to Bridge Tied Load (Max) (W)
Power to Parallel Bridge Tied Load (Max) (W)
Supported Bridge Tied Load (Min) (Ohms)
Closed/Open Loop
Control Interface
Analog Supply (V) (Min)
Analog Supply (V) (Max)
Power Stage Supply (Max) (V)
Audio Input Type
Sampling Rate (Max) (kHz)
Operating Temperature Range (C)
Package Group
Rating
Package Size: mm2:W x L (PKG)
TAS5755M TAS5711 TAS5721 TAS5731M
3    3    3    2   
45    21    15    37   
70    42.8    30    70   
4    6    8    4   
Open    Open    Open    Open   
I2C
Software   
Software    Software    Software   
8    3    3    3   
26.4    3.6    3.6    3.6   
26.4    26    26.4    26.4   
Digital    Digital    Digital    Digital   
48    48    48    48   
0 to 125    0 to 85    0 to 85    -40 to 85   
HTSSOP    HTQFP    HTSSOP    HTQFP   
Catalog    Catalog    Catalog    Catalog   
56HTSSOP: 113 mm2: 8.1 x 14(HTSSOP)    48HTQFP: 81 mm2: 9 x 9(HTQFP)    48HTSSOP: 101 mm2: 8.1 x 12.5(HTSSOP)    48HTQFP: 81 mm2: 9 x 9(HTQFP)   

Featured tools and software