92hd81 Integrated Device Technology, 92hd81 Datasheet - Page 47

• Manufacturer Part Number: 92hd81
• Description: Single Chip Pc Audio System
• Manufacturer: Integrated Device Technology

SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
92HD81
SINGLE CHIP PC AUDIO SYSTEM, CODEC+SPEAKER AMPLIFIER+CAPLESS HP+LDO
3.3.4.
3.3.5.
1.
Output Power (BTL 4 ohm, 5V - Continuous Average
Power))
Output Power (BTL 8 ohm, 5V - Continuous Average
Power))
THD+N (BTL 4 or 8 ohm, 5V, FS)
Frequency Response
Output voltage noise
shutdown current
LDO idle current
Cap-less Headphone Amp idle current
Charge Pump idle current
Charge Pump shutdown time
Charge Pump start-up time
Frequency
C1/C2 cap value
Amplifier Efficiency η (4 Ω
Amplifier efficiency includes circuits specific to the BTL amplifier audio path such as temperature limit, short circuit, and other support circuits.
Capless Headphone Supply Characteristics
Class-AB BTL Amplifier Performance
Parameter
Parameter
,
5V, 2W)
Table 18. Class-AB BTL Amplifier Performance
1
Table 19. Capless Headphone Supply
47
Min
Min
20
2
1
92HD81
Typ
Typ
384
0.6
2.2
50
10
2
1
4
1
-
Max
Max
20K
60
3
1
2
6
PC AUDIO
V 0.97 01/09
Unit
Unit
KHz
mA
mA
mA
mS
mS
Hz
uV
uF
W
W
%
%