Electrical Characteristics (Cont’d): (VCC = 15V, f = 1kHz, TA = +25°C)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Maximum Output Power
PO THD = 10%, RL = 4Ω
20 23 − W
Output Offset Voltage
VO(offset) Rg = 0Ω
− − 150 mV
Headphone Amp
Output Noise Voltage
Vno−H Rg = 10Ω, f = 15Hz, to 30kHz,
12dB/OCT, RL = 33Ω
− 0.1 1.0 mV
Voltage Gain
GV−H Vi = 10mV, RL = 33Ω
17.5 19.5 21.5 dB
Maximum Output Power
PO−H THD = 1%, RL = 33Ω
10 − − mW
Block Diagram
7
11
2
12
Headphone Amp.
Output Circuit
Input
Circuit
Driver
Circuit
SEPP
Output
3
Circuit
Ripple Rejection
Muting Circuit
Protection Circuit
(Temperature, Surge, Over Current)
1 VCC
Headphone Amp.
Output Circuit
Input
Circuit
Driver
Circuit
SEPP
Output
5
Circuit
10
9
8
GND (Input)
4
6
GND (Output)
Pin Connection Diagram
12 Output (Headphone Amp)
11 Ch 1 N.F.B.
10 GND (Input)
9 Input
Front View
8 Ch 1 N.F.B.
7 Ripple Filter
6 Ch 1 Bootstrap
5 Ch 1 Output
4 GND (Output)
3 Ch 2 Output
2 Ch 2 Bootstrap
1 VCC