an7504sb Panasonic Corporation of North America, an7504sb Datasheet - Page 9

• Manufacturer Part Number: an7504sb
• Description: Pre-amp. And Power Amp. Ic For 1.5 V Headphone Stereo
• Manufacturer: Panasonic Corporation of North America

I Application Notes (continued)
3. Distortion and amplitude characteristics of headphone amp.
2. Main characteristics
0.01
−20
−30
−40
−50
1. Pre-amp. output frequency characteristics
−10
−20
−30
−40
−50
0.1
10
1
−60
10
10
V
f = 1 kHz
RL = 32 Ω
Low boost off
Input  Distortion/output voltage
CC
= 1.2 V
100
−50
100
Output  Frequency
5. Headphone amp.
Outpu voltage
Input amplitude (dBV)
Distortion
Frequency (Hz)
Frequency (Hz)
−40
1k
1k
10k
−30
10k
PWR system
V
PL = 32 Ω
Low boost on
V
CC
CC
= 1.2 V
= 1.2 V
100k
100k
−20
10
0.01
1
0.1
SDC00029BEB
6. Distortion and amplitude at headphone amp. output
2. Distortion and amplitude at pre-amp. output
0.01
0.01
−10
−20
−30
−40
0.1
0.1
10
00
10
1
−60
1
−70
−60
V
f = 100 Hz
RL = 32 Ω
Low boost on
V
f = 1 kHz
V
f = 100 Hz
Low boost on
32 Ω end
DETC = 0.047 µF
CC
Input  Distortion/output voltage
Input  Distortion/output voltage
CC
CC
= 1.2 V
= 1.2 V
= 1.2 V
Output voltage
−60
−50
4. Headphone amp.
Input amplitude (dBV)
Input amplitude (dBV)
Input amplitude (dBV)
Output  Input
Output voltage
−50
−50
−40
Distortion
Distortion
−40
−30
−40
AN7504SB
−30
−20
10
10
1
0.1
0.01
0.01
1
0.1
9