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參數(shù)資料
| 型號： | AN7515SH |
| 廠商： | PANASONIC CORP |
| 元件分類： | 音頻控制 |
| 英文描述： | Audio signal processing IC for notebook PC |
| 中文描述： | 2 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO56 |
| 封裝： | 0.300 INCH, 1 MM HEIGHT, HEAT SINK, PLASTIC, TSOP-56 |
| 文件頁數(shù)： | 18/29頁 |
| 文件大小： | 396K |
| 代理商： | AN7515SH |
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AN7515SH
18
SDC00036BEB
I
Application Notes (continued)
1. Pin descriptions (continued)
Pin 11, pin 12 (L-ch., R-ch. headphone output)
In considerration of headphone load, suitable value of C7, C8 is 220
μ
F.
Pin 13 (GND (headphone power use))
Pin 14 (GND (headphone small signal use))
Pin 15 (N.C.)
Pin 15 connects to IC's heat sink.
Pin 16 (power supply (headphone power use))
Please put an about 100
μ
F capacitor between pin 13 and pin 14.
Pin 17 (power supply (headphone small signal use))
Please put an about 33
μ
F capacitor between pin 13 and pin 14.
Pin 18, pin 19, pin 20, pin 21
Please open.
Pin 22 (beep input)
Suitable value of R4 is 33 k
and suitable value of C14 is 1
μ
F.
Pin 23
Please open.
Pin 24 (R-ch. headphone spatializer off mode input)
Suitable value of C15 is 1
μ
F, because input impeadance of headphone power amplifier is 20 k
.
Pin 25 (L-ch. headphone spatializer off mode input)
Suitable value of C16 is 1
μ
F, because input impeadance of headphone power amplifier is 20 k
.
Pin 26
Please open.
Pin 27 (line amplifier L-ch. input)
Suitable value of C17 is 1
μ
F, because input impeadance of line amplifier is 50 k
.
Pin 28 (line amplifier R-ch. input)
Suitable value of C18 is 1
μ
F, because input impeadance of line amplifier is 50 k
.
Pin 29 (line amplifier R-ch. output)
Suitable value of C19 is 1
μ
F.
Pin 30 (GND (line amplifier))
Pin 31 (line amplifier L-ch. output)
Suitable value of C20 is 1
μ
F.
Pin 32 (beep control (line amplifier))
A value of VR2 is bigger, output level is smaller.
Pin 33 (line amplifier mute control)
Suitable value of R5 is 50 k
and suitable value of C21 is 1
μ
F.
Rise time is about 20 ms.
If value of R and C is smaller, switching time is shorter but there is a possibility of pop sound occurrence.
Pin 34 (beep control (headphone amplifier))
A value of VR3 is bigger, output level is smaller.
Pin 35 (headphone amplifier mute control)
Suitable value of R6 is 50 k
and suitable value of C22 is 1
μ
F.
Rise time is about 20 ms.
If value of R and C is smaller, switching time is shorter but there is a possibility of pop sound occurrence.
Pin 36
Please connect to GND.
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