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Part Number: AD1994
Description: The AD199x is a two channel Bridge Tied Load (BTL) switching audio power amplifier ...
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AD1994
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DataSheet
General Description
AD1994 General Description
The AD199x is a two channel Bridge Tied Load (BTL) switching audio power amplifier with integrated ∆ modulator. The modulator accepts a 1Vrms input signal (maximum power) and generates a switching waveform to drive speakers directly.
One of the two modulators can control both output stages providing twice the current for single-channel applications. A digital, microcontroller-compatible interface provides control of reset, mute and PGA gain as well as output signals for thermal and over-current error conditions. The output stage can operate from supply voltages ranging from 8V to 20V. The analog modulator and digital logic operate from a 5V supply.
AD1994 Maximum Ratings
AVDD, DVDD to AGND, DGND -0.3 V to +6.5 V
PVDDX to PGND -0.3 V to +30.0 V2
AGND to DGND to PGND -0.3 V to +0.3 V
AVDD, to DVDD -0.5 V to +0.5 V
Audio Inputs AGND to AVDD
Operating Temperature Range 40°C to +85°C
Storage Temperature Range 65°C to +150°C
Maximum Junction Temperature 150°C
JC Thermal Impedance (LFCSP) 3°C/W
JC Thermal Impedance (PSOP) 1°C/W
Lead Temperature Soldering (10 sec) 260°C
Vapor Phase (60 sec) 215°C
Infrared (15 sec) 220°C
PVDDX to PGND -0.3 V to +30.0 V2
AGND to DGND to PGND -0.3 V to +0.3 V
AVDD, to DVDD -0.5 V to +0.5 V
Audio Inputs AGND to AVDD
Operating Temperature Range 40°C to +85°C
Storage Temperature Range 65°C to +150°C
Maximum Junction Temperature 150°C
JC Thermal Impedance (LFCSP) 3°C/W
JC Thermal Impedance (PSOP) 1°C/W
Lead Temperature Soldering (10 sec) 260°C
Vapor Phase (60 sec) 215°C
Infrared (15 sec) 220°C
AD1994 Features
Integrated Stereo Modulator & Power Stage
0.005% THD+N
101.5dB Dynamic Range
PSRR > 65 dB
RDS-ON < 0.3 Ω (per transistor)
Efficiency > 80% @ 5W/6 Ω
EMI Optimized Modulator
On-Off-Mute Pop Noise Suppression
Short Circuit Protection
Over-Temperature Protection
Low Cost DMOS Process
0.005% THD+N
101.5dB Dynamic Range
PSRR > 65 dB
RDS-ON < 0.3 Ω (per transistor)
Efficiency > 80% @ 5W/6 Ω
EMI Optimized Modulator
On-Off-Mute Pop Noise Suppression
Short Circuit Protection
Over-Temperature Protection
Low Cost DMOS Process
AD1994 Typical Application
Flat Panel Televisions
Automotive Amplifiers
PC Audio Systems
Mini Components
Automotive Amplifiers
PC Audio Systems
Mini Components
AD1994 Connection Diagram
AD1994
PDF/DataSheet Download
- Datasheet: AD1994
- File Size: 1028096 KB
- Manufacturer: AD
- Click here to Download
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The AD199x is a two channel Bridge Tied Load (BTL) switching audio power amplifier with integrated ∆ modulator. The modulator accepts a 1Vrms input signal (maximum power) and generates a switching waveform to drive speakers directly. One of the two m...
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