VCNL4000-GS08 Vishay, VCNL4000-GS08 Datasheet - Page 9

• Manufacturer Part Number: VCNL4000-GS08
• Description: IC OPTICAL SENSOR I2C 12-LLP
• Manufacturer: Vishay
• Series: VCNL4000r
• Type: Short distance Proximity/Ambient Light Sensorr

Specifications of VCNL4000-GS08

• Output Type: Digital - I²C
• Sensor Type: Light and Proximity
• Sensing Range: 1mm To 200mm
• Output Current: 1.5µA
• Sensor Output: I2C
• Supply Voltage Range Dc: 2V To 3.6V
• Maximum Operating Temperature: + 85 C
• Supply Voltage: 3.6 V
• Operating Supply Voltage: 3.6 V
• Mounting Style: SMD/SMT
• Sensing Distance: 1 mm to 200 mm
• Minimum Operating Temperature: - 25 C
• Features: Integrated module with ambient light sensor, proximity sensor, signal conditioning IC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 751-1505-2

Register #10 Proximity Modulator Timing Adjustment
Register address = 8Ah.
Note
• The settings for best performance will be provided by Vishay. With first samples this is evaluated to: delay time = 4 and dead time = 1, with
Register #11 Ambient IR Light Level Register
Register address = 8Bh.
This register is not intended to be used by customer.
3. IMPORTANT APPLICATION HINTS AND EXAMPLES
3.1 Receiver standby mode
In standby mode the receiver has the lowest current consumption of about 1.6 μA. In this mode only the I
This is always valid, when there are no measurement demands for proximity and ambient light executed. Also the current sink
for the IR-LED is inactive, so there is no need for changing register #3 (IR LED current).
3.2 Data Read
In order to get a certain register value, the register has to be addressed without data like shown in the following scheme. After
this register addressing, the data from the addressed register is written after a subsequent read command.
The stop condition between these write and read sequences is not mandatory. It works also with a repeated start condition.
Note
• For reading out 2 (or more) subsequent registers like the result registers, it is not necessary to address each of the registers separately. After
Example: read register “Ambient Light Result Register” #5 and #6:
Addressing:command: 26h, 85h (VCNL4000_I
Read register #5:command: 27h, data (VCNL4000_I
Read register #6:command: 27h, data (VCNL4000_I
Document Number: 83798
Rev. 1.3, 06-Apr-11
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
TABLE 10 - PROXIMITY MODULATOR TIMING ADJUSTMENT #10
that register #10 should be programmed with: 129 (dez.)
one read command the internal register counter is increased automatically and any subsequent read command is accessing the next
register.
Bit 7
Modulation dead Time
Modulation delay time
Modulation delay time
Fully Integrated Proximity and Ambient Light Sensor
Bit 6
with Infrared Emitter and I
S = start condition
P = stop condition
A = acknowledge
For technical questions, contact:
Receive byte
S
S
Bit 5
Slave address
Slave address
R/W bits. Setting a dead time in evaluation of IR signal at the slopes of the IR signal.
R/W bits. Setting a delay time between IR LED signal and IR input signal evaluation.
This document is subject to change without notice.
Also in respect to the possibility for setting different proximity signal frequency.
Fig. 14 - Send Byte/Receive Byte Protocol
This function is for compensation of delays from IR LED and IR photo diode.
2
C_Bus_Write_Adr., Ambient Light Result Register #5 [85])
Read data from VCNL4000
This function is reducing signal level and should be used carefully.
2
2
C_Bus_Read_Adr., {High Byte Data of Ambient Light Result Register #5 [85])}
C_Bus_Read_Adr., {Low Byte Data of Ambient Light Result Register #6 [86])}
This function is for reducing of possible disturbance effects.
Correct adjustment is optimizing measurement signal level.
Bit 4
Wr
Rd
Description
A
A
N/A
2
[e-mail]
C Interface
Host action
VCNL4000 response
Register address
Data byte
Bit 3
A
A
Bit 2
P
P
22314
Vishay Semiconductors
Modulation dead Time
Bit 1
www.vishay.com/doc?91000
2
C interface is active.
VCNL4000
www.vishay.com
Bit 0
9