- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385090 > AK4220VQ (ASAHI KASEI POWER DEVICES CORP) 7:3 Audio Switch and 6:3 Video Switch PDF資料下載
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)： | 14/33頁 |
| 文件大?。?/td> | 537K |
| 代理商： | AK4220VQ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當(dāng)前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁
I
[AK4220]
MS0627-E-00
2007/05
- 14 -
OPERATION OVERVIEW
■
Power-down options
The AK4220 should be reset once by bringing PDN pin = “L” upon power-up.
■
Audio Bias Control Circuit
The AK4220 has an on-chip audio bias voltage control circuit. Bringing BIAS bit to “1”, the bias voltage (MUTET pin)
smoothly set from AVSS to AVDD/2(typ) by 150ms (typ, Note: 23). The change of BIAS bit from “1” to “0” also makes
smooth transient from AVDD/2(typ) to AVSS by 150ms (typ, Note: 23). This feature achieves pop noise free at
power-on/off.
Note: 23. AVDD=5.0V, the capacitor of MUTET pin is C=1uF. The rise and fall times are proportional to the voltage of
AVDD and the capacitor value of MUTET pin.
PDN pin
Audio bias level
BIAS bit
“1”
“0”
150ms (typ)
150ms (typ)
“0” (default)
Figure 13. BIAS bit
■
Audio Signal Input, Video Signal Input
1. Audio Signal Input
The ground noise can be cancelled by the differential input with the same ground for L and R channel. The output of LIN
and RIN are the same phase. LIN+1-7, RIN+1-7 and GND1-7 pins must be AC coupled using 0.47uF capacitor.
2. Video Signal Input
Tip Sync level is fixed by internal clamp circuit. VIN1-6 pins must be input through 0.47uF capacitor for AC coupling.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AK4250 | Output Coupling Capacitor-less Video Amp with LPF |
| AK4250VU | Output Coupling Capacitor-less Video Amp with LPF |
| AK4252 | Output Coupling Capacitor-less Video Amp with LPF |
| AK4252VU | Output Coupling Capacitor-less Video Amp with LPF |
| AK4254 | Capacitor-less Video Amp with 7:2 Video Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AK4223 | 制造商:AKM 制造商全稱:AKM 功能描述:6:2 Audio Switch and 6:2 Video Switch |
| AK4223VQ | 制造商:AKM 制造商全稱:AKM 功能描述:6:2 Audio Switch and 6:2 Video Switch |
| AK4250 | 制造商:AKM 制造商全稱:AKM 功能描述:1ch video amplifier with low pass filter |
| AK4250_10 | 制造商:AKM 制造商全稱:AKM 功能描述:Output Coupling Capacitor-less Video Amp with LPF |
| AK4250VT | 制造商:AKM 制造商全稱:AKM 功能描述:Output Coupling Capacitor-less Video Amp with LPF |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。