AK4220 Datasheet, PDF (1/33 Pages) Asahi Kasei Microsystems – 7:3 Audio Switch and 6:3 Video Switch

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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
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 Composite Signal Inputs
• Video Driver for Composite 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