AK8451 Datasheet, PDF (4/42 Pages) Asahi Kasei Microsystems – 1 channel-input 16 bit 6MSPS ADC

ASAHI KASEI
[AK8451]
Pin Functions
No. Name
1
IREF
2
VREFO
3
CISIN0
4
VCLP
5
NC
6
AVSS
7
AVDD
8
LED_R
9
LVDD
10 LVSS
11 LED_G
12 LED_B
13 LEDR_EN
14 LEDG_EN
15 LEDB_EN
16 D0/SDCLK
17 D1/SDATA
18 DRVSS
19 DRVDD
20 D2
IO
I
O
I
IO
-
PWR
PWR
O
PWR
PWR
O
O
I
I
I
IO
IO
PWR
PWR
O
PD
Hi-Z
(note 2)
Hi-Z
Hi-Z
Hi-Z
(note 3)
(note 3)
H or L
Description
LED current setting external resister pin
Reference voltage output :1.1V
External capacitor : 0.33μＦ
Sensor Signal input
Sensor Reference Level input at DC Direct Coupled mode
Clamp Level output at CDS mode (external Cap.: 0.1μF)
Unused(note 1)
Analog ground
Analog power supply
LED output pin R
LED power supply
LED ground
LED output pin G
LED output pin B
LED control input R
LED control input G
LED control input B
SDENB=High ; A/D Data output : Lower Bit (D0)
SDENB=Low ; Serial Interface Clock input
SDENB=High ; A/D Data output : Lower Bit (D1)
SDENB=Low ; Serial Interface Data input
A/D Output buffer ground
A/D Output buffer power supply
A/D Data output : D2 Bit
21 D3
22 SDENB
23 MCLK
24 TSMP
25 RESETB
26 VCOM
27 VRN
28 VRP
(note4)
O H or L A/D Data output : Upper Bit (D3)
(note4)
I
Serial Interface Enable
I
Main Clock
I
Sampling Timing
I
Reset pin : Active Low, on chip pull-up resister : 100kΩ (typ.)
O
Hi-Z Internal Reference Voltage : external capacitor 0.1μF
O
L ADC Negative Reference Voltage : external capacitor 0.1μF
(note 5)
O
L ADC Positive Reference Voltage : external capacitor 0.1μF
(note 5)
I: input , O: output , PWR: power/ground pin
(note 1)Please connect it with analog ground on the board.
(note 2)It will be input on DC mode, be Hi-Z on CCD mode.
(note 3)Please be input state.
(note 4)It will be H or L since PD mode.
(note 5)It is connect with AVSS via internal resistance.
MS0937-E-01
4
2011/04