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参数资料
| 型号： | ISL29021IROZ-EVALZ |
| 厂商： | Intersil |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR ISL29021IROZ |
| 标准包装： | 1 |
| 系列： | * |
ISL29021
Pinout
ISL29021
(8 LD ODFN
TOP VIEW)
VDDD 1
VDDA 2
GND 3
REXT 4
8 IRDR
7 INT
6 SDA
5 SCL
EXPOSED PAD CAN BE CONNECTED TO GND OR
ELECTRICALLY ISOLATED
Pin Descriptions
PIN NUMBER PIN NAME
DESCRIPTION
1
2
3
4
VDDD
VDDA
GND
REXT
Positive digital supply: 2.5V to 3.63V.
Positive analog supply: 2.5V to 3.63V, VDDA and VDDD should be externally shorted.
Ground.
External resistor pin setting the internal reference current and the conversion time. 499k Ω with 1% tolerance resistor
is recommended.
5
SCL
I 2 C serial clock line
The I 2 C bus lines can be pulled from 1.7V to above V DD , 3.63V max.
6
7
8
SDA
INT
IRDR
I 2 C serial data line
Interrupt pin; LO for interrupt/alarming. The INT pin is an open drain.
IR LED driver pin connecting to the anode of the external IR LED. The source current of the IR LED driver can be
programmed through I 2 C.
Exposed pad connected to ground or electrically isolated.
Block Diagram
VDDA
2
VDDD
1
COMMAND
REGISTER
IR DATA
PROCESS
INTEGRATION
ADC
DATA
REGISTER
6
SDA
IR PHOTODIODE
ARRAY
I 2 C
5
SCL
IREF
4
REXT
FOSC
3
GND
INTERRUPT
IR DRIVER
7
8
INT
IRDR
ISL29021
2
FN6732.0
March 3, 2009
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