AD82550A データシートの表示（PDF） - Unspecified
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AD82550A Datasheet PDF : 3 Pages
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ESMT
AD82550A
Absolute Maximum Ratings
Symbol
Parameter
Min
DVDD
Supply for Digital Circuit
0
AVDD
Supply for Analog Circuit
0
VDDL(R)
Supply for Left (Right) Channel
0
Vi
Input Voltage
-0.3
Tstg
Storage Temperature
-65
Ta
Ambient Operating Temperature
0
Voltage Difference between VDDL and VDDR
-1
Voltage Difference between VDDL(VDDR) and DVDD/AVDD -3
VDDL(VDDR) Power-on Voltage Ramp
Max Units
3.6 V
3.6 V
5.5 V
3.6 V
150 oC
70
oC
1
V
3
V
0.2 V/μs
Recommended Operating Conditions
Symbol
DVDD
Parameter
Supply for Digital Circuit
Typ Units
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
Digital Characteristics
Symbol
VIH
VIL
VOH
VOL
CI
Parameter
High-Level Input Voltage
Low-Level Input Voltage
High-Level Output Voltage
Low-Level Output Voltage
Input Capacitance
Min
Typ
Max
Units
2.0
V
0.8
V
2.4
V
0.4
V
6.4
pF
General Electrical Characteristics
Symbol
Parameter
IPD
Supply Current during Power Down
Junction Temperature for Driver Shutdown
Temperature Hysteresis for Recovery from Shutdown
Condition
Min Typ Max Units
36
μA
150
oC
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
RSC
Minimum PWM pulse width
Loudspeaker Short-Circuit Detection (Note2)
VDDR(L)=5V
1
256Fs
1
256Fs
2.8
1
256Fs
3.2
Sec
Ω
RSCH
Headphone Output Short-Circuit Detection
Steady State
3.0 3.4 Ω
Note2: Loudspeaker short-circuit protection is effective only when external LC or ferrite bead filters are
properly used. Long time short-circuit will reduce device reliability. AD82550A protects itself from
short-circuit damage only when the lines connected to speaker are shorted to each other or to GND.
AD82550A will be burnt if the lines connected to loudspeaker are shorted to VDDL(VDDR).
Package Options
Package Type Part Number
Thermal Information
24L SSOP 209mil AD82550A-CG θJA = 64.7 oC/W (Condition: still air, multilayer board)
Elite Semiconductor Memory Technology Inc.
Publication Date： Apr. 2007
Revision：1.1 3/16
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