AK4220 Datasheet Text
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[AK4220]
AK4220
7:3 Audio Switch and 6:3 Video Switch
GENERAL DESCRIPTION The AK4220 is an AV Switch with 7:3 Audio Switches and 6:3 Video Switches. Using CMOS process to offer the high performance with low power consumption. In the Audio section, on-chip differential input circuit could separate the external ground noise. The AK4220 integrates a pop noise free circuit for power on/pff. The AK4220 is offered in a space saving 64-pin LQFP package, ideal for car navigation applications. Features
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1. Audio Section
- Selector for 7 inputs and 3 outputs
- Differential Input Circuit for Ground Noise Cannel
- THD+N: -92dB (@1Vrms)
- Dynamic Range: 96dB
- Channel-Independent Output Off
- Pop Noise Free Circuit for Power On/Off
- Channel-Independent Input Detection Circuit 2. Video Section
- Selector for 6 inputs and 3 outputs
- Six posite Signal Inputs
- Video Driver for posite Signal Output (+6dB)
- Channel-Independent Hi-Z Output
- On-Chip Sync-tip Clamp Circuit
- Frequency Range: 6MHz
- S/N: 74dB
- Input Detection Circuit 3. Control Section
- Serial µP I/F (I2C, 4-wires serial)
- Five Programmable Output pins 4. Power Supply
- Analog: 4.5V ~ 5.5V
- Digital: 3.0V ~ 3.6V
- Low Power Consumption: 186mW 5. Ta = -40 ∼ 85 °C 6. Package: 64pin LQFP
MS0627-E-00 -1-
2007/05
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