Datasheet Details
| Part number | AD1991 |
|---|---|
| Manufacturer | Analog Devices |
| File Size | 194.90 KB |
| Description | Class D/1-Bit Audio Power Output Stage |
| Datasheet |
 AD1991 Datasheet
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General 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 PRO
Key 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.