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参数资料
| 型号： | ISL29015IROZ-EVALZ |
| 厂商： | Intersil |
| 文件页数： | 6/13页 |
| 文件大小： | 0K |
| 描述： | EVALUATION BOARD FOR ISL29015 |
| 标准包装： | 1 |
| 传感器类型： | 灯光，数字式输出 |
| 传感范围： | 65535Lux |
| 接口： | I²C，SM 总线 |
| 灵敏度： | 540nm |
| 电源电压： | 2.25 V ~ 3.3 V |
| 嵌入式： | 否 |
| 已供物品： | 板 |
| 已用 IC / 零件： | ISL29015 |
ISL29015
START
DEVICE ADDRESS
W
A
REGISTER ADDRESS
A
FUNCTIONS
A
STOP
I 2 C DATA
I 2 C SDA IN
A6 A5 A4 A3 A2 A1 A0
W
A
R7 R6 R5 R4 R3 R2 R1 R0
A
B7 B6 B5 B4 B3 B2 B1 B0
A
I 2 C SDA OUT
SDA DRIVEN BY MASTER
A
SDA DRIVEN BY MASTER
A
SDA DRIVEN BY MASTER
A
I 2 C CLK IN
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
FIGURE 2. I 2 C WRITE TIMING DIAGRAM SAMPLE
Register Set
There are four registers that are available in the ISL29015. Table 1 summarizes their functions.
TABLE 1. REGISTER SET
BIT
ADDR
00h
01h
02h
03h
REG NAME
COMMAND I
COMMAND II
DATA LSB
DATA MSB
7
OP2
IS1
D7
D15
6
OP1
IS0
D6
D14
5
OP0
FREQ1
D5
D13
4
0
FREQ0
D4
D12
3
0
RES1
D3
D11
2
0
RES0
D2
D10
1
0
RANGE1
D1
D9
0
0
RANGE0
D0
D8
DEFAULT
00h
00h
00h
00h
Command Register I 00(hex)
The first command register has the following functions:
For example, the device sources 100mA out of the IRDR
pin if Bits 7 and 6 are 0 during proximity sensing.
TABLE 3. CURRENT SOURCE CAPABILITY AT IRDR PIN
1. Operation Mode: Bits 7, 6, and 5.These three bits
determines the operation mode of the device.
TABLE 2. OPERATION MODE
BITS 7 TO 5 OPERATION
000 Power-down the device
BITS 7: 6
00
01
10
IRDR PIN SOURCE CURRENT
100mA IR LED driver
50mA IR LED driver
25mA IR LED driver
001
ALS once
11
12.5mA IR LED driver
010
011
100
101
IR once
Proximity once
Reserved
ALS continuous
2. Modulation Frequency: Bits 5 and 4. These two bits set
the IR LED driver ’s modulation frequency.
TABLE 4. MODULATION FREQUENCY
110
111
IR continuous
Proximity continuous
BITS 5:4
00
MODULATION FREQUENCY
(kHz)
DC
2. Bit 4 to 0 has been reserved to 0.
Command Register II 01(hex)
The second command register has the following functions:
01
10
11
N/A
N/A
360
1. Amplitude of IR driver current: Bits 7 and 6. This device
provides current source to drive an external IR LED. The
drive capability can be programmed through Bits 7 and 6.
6
3. Resolution: Bits 3 and 2. Bits 3 and 2 determine the
ADC’s resolution and the number of clock cycles per
conversion in Internal Timing Mode. Changing the
number of clock cycles does more than just change the
resolution of the device. It also changes the integration
time, which is the period the device’s analog-to-digital
FN6522.0
October 31, 2008
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