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AD82551A-CG Fiches technique(PDF) 3 Page - Elite Semiconductor Memory Technology Inc.

No de pièce AD82551A-CG
Description  Stereo Digital Audio Amplifier with Headphone Driver
Download  3 Pages
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Fabricant  ESMT [Elite Semiconductor Memory Technology Inc.]
Site Internet  http://www.esmt.com.tw/index.asp
Logo ESMT - Elite Semiconductor Memory Technology Inc.

AD82551A-CG Fiches technique(HTML) 3 Page - Elite Semiconductor Memory Technology Inc.

  AD82551A-CG Datasheet HTML 1Page - Elite Semiconductor Memory Technology Inc. AD82551A-CG Datasheet HTML 2Page - Elite Semiconductor Memory Technology Inc. AD82551A-CG Datasheet HTML 3Page - Elite Semiconductor Memory Technology Inc.  
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ESMT
AD82551A
Elite Semiconductor Memory Technology Inc.
Publication Date
Apr. 2007
Revision
1.1
3/15
Absolute Maximum Ratings
Symbol
Parameter
Min
Max
Units
DVDD
Supply for Digital Circuit
0
3.6
V
AVDD
Supply for Analog Circuit
0
3.6
V
VDDL(R)
Supply for Left (Right) Channel
0
5.5
V
Vi
Input Voltage
-0.3
3.6
V
Tstg
Storage Temperature
-65
150
oC
Ta
Ambient Operating Temperature
0
70
oC
Voltage Difference between VDDL and VDDR
-1
1
V
Voltage Difference between VDDL(VDDR) and
-3
3
V
VDDL(VDDR) Power-on Voltage Ramp
0.2
V/
μs
Recommended Operating Conditions
Digital Characteristics
Symbol
Parameter
Min
Typ
Max
Units
VIH
High-Level Input Voltage
2.0
V
VIL
Low-Level Input Voltage
0.8
V
VOH
High-Level Output Voltage
2.4
V
VOL
Low-Level Output Voltage
0.4
V
CI
Input Capacitance
6.4
pF
General Electrical Characteristics
Symbol
Parameter
Condition
Min Typ Max Units
IPD
Supply Current during Power Down
36
μA
Junction Temperature for Driver Shutdown
150
oC
Temperature Hysteresis for Recovery from Shutdown
20
oC
UVH
Under Voltage Disabled (For AVDD)
2.8
V
UVL
Under Voltage Enabled (For AVDD)
2.7
V
Fsw
Switching Rate of Loudspeakers and Headphones
8Fs 8Fs 8Fs
Hz
TPWM
Minimum PWM pulse width
Sec
RSC
Loudspeaker Short-Circuit Detection (Note2)
VDDR(L)=5V
2.8
3.2
Ω
RSCH
Headphone Output Short-Circuit Detection
Steady State
3.0
3.4
Ω
Note2: Loudspeaker short-circuit protection is effective only when LC or ferrite bead filters are properly used.
Long time short circuit will reduce device reliability. AD82551A protects itself from short-circuit
damage only when the lines connected to loudspeakers are shorted to each other or to GND.
AD82551A will be burnt if the lines connected to loudspeakers are shorted to VDDL(VDDR).
Package Options
Package Type
Part Number
Thermal Information
24L SSOP 209mil AD82551A-CG θJA = 64.7
oC/W (Condition: still air, multilayer board)
Symbol
Parameter
Typ
Units
DVDD
Supply for Digital Circuit
3.0~3.3
V
AVDD
Supply for Analog Circuit
3.0~3.3
V
VDDL(R)
Supply for Driver Stage
3.0~5.0
V
Ta
Ambient Operating Temperature
0~70
oC
256Fs
1
256Fs
1
256Fs
1


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