AK4220 Datasheet PDF - Asahi Kasei Microsystems

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AK4220
Asahi Kasei Microsystems

Part Number AK4220
Description 7:3 Audio Switch and 6:3 Video Switch
Page 30 Pages


AK4220 datasheet pdf
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I [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.
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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



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I
LIN + 1
GND1
R IN +1
40k(typ)
40k(typ)
40k(typ)
40k(typ)
VCOM
40k(typ)
40k(typ)
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LIN + 2
GND2
R IN +2
LIN + 3
GND3
R IN +3
LIN + 4
GND4
R IN +4
LIN + 5
GND5
R IN +5
LIN + 6
GND6
R IN +6
LIN + 7
GND7
R IN +7
In put #1
(sam e circuit)
In put #2
(sam e circuit)
In put #3
(sam e circuit)
In put #4
(sam e circuit)
In put #5
(sam e circuit)
In put #6
(sam e circuit)
In put #7
R
VCOM
MUTET
O scillator
Bias
MUTET
[AK4220]
AVD D
AVS S
LOUT1
MUTET
O utput #1
ROUT1
(sam e circuit)
LOUT2
O utput #2
ROUT2
(sam e circuit)
LOUT3
O utput #3
ROUT3
ADETL
ADETR
MS0627-E-00
Figure 1. Audio Block
-2-
2007/05



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I
VIN1
VIN2
VIN3
VIN4
VIN5
VIN6
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TEST
PDN
IICN
SDA/CDTI
SCL/CCLK
INT
PDN
CAD1/CSN
CAD0/CDTO
Video Drivers
+6dB
+6dB
+6dB
VVDD1
VVDD2
VVSS1
VVSS2
VVSS3
VOUT1
VFB1
VOUT2
VFB2
VOUT3
VFB3
Sync DET
Sync-tip
Clamp
(A/V control)
Control
Registers
(open drain)
DVDD
DVSS
Q0
Q1
Q2
Q3
Q4
Figure 2. Video & Control Block
[AK4220]
MS0627-E-00
-3-
2007/05



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I
Ordering Guide
AK4220VQ
AKD4220
Pin Layout
40 +85°C
64pin LQFP (0.5mm pitch)
Evaluation board for AK4220
[AK4220]
49 LIN+2
50 RIN+2
51 GND3
www.DataSheet4U.com52 LIN+3
53 RIN+3
54 GND4
55 LIN+4
56 RIN+4
57 GND5
58 LIN+5
59 RIN+5
60 GND6
61 LIN+6
62 RIN+6
63 GND7
64 LIN+7
AK4220
Top View
VIN5 32
IICN 31
VIN4 30
VVSS1 29
VIN3 28
VVDD1 27
VIN2 26
VVSS3 25
VIN1 24
VVSS2 23
VFB3 22
VOUT3 21
VVDD2 20
VFB2 19
VOUT2 18
TEST 17
MS0627-E-00
-4-
2007/05



AK4220 datasheet pdf
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AK4220 pdf
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