AD1991 - Class D/1-Bit Audio Power Output Stage

Analog Devices

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Datasheet Details

Part number	AD1991
Manufacturer	Analog Devices
File Size	194.90 KB
Description	Class D/1-Bit Audio Power Output Stage
Datasheet	AD1991_AnalogDevices.pdf

AD1991 Product details

Description

FUNCTIONAL BLOCK DIAGRAMS 2-Channel Mode AVDD DVDD PVDD 6 OUTA INA LEFT INPUT A1 A2 3 INB B1 B2 LEVEL SHIFTER AND SWITCH CONTROL H-BRIDGE OUTB 3 OUTC INC RIGHT INPUT C1 C2 3 IND D1 OUTD D2 3 CURRENT OVERLOAD THERMAL SHUTDOWN THERMAL WARNING DATA LOSS 14 PGND CLK RST/PDN MUTE ،n THERMAL PROTECTION SHORT-CIRCUIT PROTECTION MUTE CONTROL 4 AGND DGND 2 TEST CONTROL 4-Channel Mode AVDD DVDD PVDD 6 The AD1991 is a 2-channel BTL or 4-channel single-ended class D audio power output stage.T

Features

Class D/1-Bit Audio Power Output Stage 5 V Analog and Digital Supply Voltages Power Stage Power Supply 8 V to 20 V Output Power @ 0.1% THD + N Stereo Mode 2 ؋ 20 W @ 4 ⍀ @ 14.4 V 2 ؋ 20 W @ 8 ⍀ @ 20 V Mono Mode 1 ؋ 40 W @ 4 ⍀ @ 20 V RON < 320 m⍀ (per Transistor) Efficiency > 85% @ Full Power/8 ⍀ Clickless Mute Function Turn-On and Turn-Off Pop Suppression Short-Circuit Protection Overtemperature Protection Data Loss Protection 2-Channel BTL Outputs or 4-Channel Single-Ended Outputs 52-Lead Expos.

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Published: Mar 23, 2005 |