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參數(shù)資料
| 型號： | AK4220VQ |
| 廠商： | ASAHI KASEI POWER DEVICES CORP |
| 元件分類： | 消費家電 |
| 英文描述： | 7:3 Audio Switch and 6:3 Video Switch |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | 0.50 MM PITCH, LEAD FREE, PLASTIC, LQFP-64 |
| 文件頁數(shù)： | 8/33頁 |
| 文件大?。?/td> | 537K |
| 代理商： | AK4220VQ |
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I
[AK4220]
MS0627-E-00
2007/05
- 8 -
ANALOG CHARACTERISTICS (AUDIO)
(Ta=25
°
C; AVDD = VVDD1-2 = 5V, DVDD =3.3V; AVSS = VVSS1-3 = DVSS = 0V; Signal Frequency=1kHz,
Measurement Frequency=20Hz
～
20kHz, unless otherwise specified)
Parameter
S/(N+D)
Input=0dBV
DR (0dBV)
Input=-60dBV, A-weighted
S/N (0dBV)
Input=0ff, A-weighted
Input Impedance (Note: 5)
Maximum Input Voltage (Note: 6)
Gain
Interchannel Isolation (Note: 7)
Interchannel Gain Mismatch
Gain Drift
Load Resistance (Note: 8)
R1+R2 (Figure 4)
Load Capacitance
C1 (Figure 4)
C2 (Figure 4)
Power Supply Rejection (Note: 9)
Input Detection Circuit
Input Reception
1kHz (Note: 10)
Input Reception Adjustment Gain Step (Note: 11)
Note: 5. Connected GND1-7 to GND using a capacitor for AC-coupling.
Note: 6. The Input Voltage meets S/(N+D)>82dB
Note: 7. Between all channels of LIN1-7 and RIN1-7.
Note: 8. The output resistance of audio output (LOUT1-3 and ROUT1-3) are less than l0
Ω
(typ).
Note: 9. Applied to AVDD, VVDD1-2 and DVDD with a sine wave (1kHz, 50mVpp).
Note: 10. Detect an instant value. 31dBV=+40mV0p. If the input voltage is smaller than the detection reception value, the
signal isn’t detected, and if the input voltage is larger than the detection reception value, the signal is detected.
The input reception value is proportional to AVDD voltage as of 0.008 x AVDD V0p(typ).
Note: 11. Input Reception Adjustment Gain is +6dB
～
-6dB.
C3
10uF
min
82
88
88
20
1
-0.5
-
5
typ
92
96
96
-
0
100
0.2
20
max
-
0.5
-
-
400
30
Units
dB
dB
dB
k
Ω
Vrms
dB
dB
dB
ppm/
°
C
k
Ω
pF
pF
dB
-
50
-43
-
-31
3
-26
-
dBV
dB
LOUT1-3
ROUT1-3
R1
300
Ω
C2=C21+C22= 30pF(max)
C1= 400pF(max)
R2
4.7k
Ω
C21
C22
C1
Figure 4. Load Resistance R1, R2 and Load Capacitance C1, C2.
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