 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
AFE4403 Datasheet(PDF) 73 Page - Texas Instruments |
|
|
|
|||||||||||||||||||||||||||||
AFE4403 Datasheet(HTML) 73 Page - Texas Instruments |
|
|
73 / 97 page  AFE4403 www.ti.com SBAS650B – MAY 2014 – REVISED JULY 2014 Figure 107. TIA_AMB_GAIN: Transimpedance Amplifier and Ambient Cancellation Stage Gain Register (Address = 21h, Reset Value = 0000h) 23 22 21 20 19 18 17 16 15 14 13 12 FLTR STAGE2 0 0 0 0 AMBDAC[3:0] 0 0 CNRSEL EN2 11 10 9 8 7 6 5 4 3 2 1 0 0 STG2GAIN[2:0] CF_LED2[4:0] RF_LED2[2:0] This register configures the ambient light cancellation amplifier gain, cancellation current, and filter corner frequency. Bits 23:20 Must be 0 Bits 19:16 AMBDAC[3:0]: Ambient DAC value These bits set the value of the cancellation current. 0000 = 0 µA (default after reset) 1000 = 8 µA 0001 = 1 µA 1001 = 9 µA 0010 = 2 µA 1010 = 10 µA 0011 = 3 µA 1011 = Do not use 0100 = 4 µA 1100 = Do not use 0101 = 5 µA 1101 = Do not use 0110 = 6 µA 1110 = Do not use 0111 = 7 µA 1111 = Do not use Bit 15 Must be 0 Bit 14 STAGE2EN2: Stage 2 enable for LED 2 0 = Stage 2 is bypassed (default after reset) 1 = Stage 2 is enabled with the gain value specified by the STG2GAIN2[2:0] bits Bits 13:11 Must be 0 Bits 10:8 STG2GAIN2[2:0]: Stage 2 gain setting for LED 2 000 = 0 dB, or linear gain of 1 (default after reset) 001 = 3.5 dB, or linear gain of 1.5 010 = 6 dB, or linear gain of 2 011 = 9.5 dB, or linear gain of 3 100 = 12 dB, or linear gain of 4 101 = Do not use 110 = Do not use 111 = Do not use Bits 7:3 CF_LED[4:0]: Program CF for LEDs 00000 = 5 pF (default after reset) 00100 = 25 pF + 5 pF 00001 = 5 pF + 5 pF 01000 = 50 pF + 5 pF 00010 = 15 pF + 5 pF 10000 = 150 pF + 5 pF Note that any combination of these CF settings is also supported by setting multiple bits to 1. For example, to obtain CF = 100 pF, set D[7:3] = 01111. Bits 2:0 RF_LED[2:0]: Program RF for LEDs 000 = 500 k Ω 100 = 25 k Ω 001 = 250 k Ω 101 = 10 k Ω 010 = 100 k Ω 110 = 1 M Ω 011 = 50 k Ω 111 = None Copyright © 2014, Texas Instruments Incorporated Submit Documentation Feedback 73 Product Folder Links: AFE4403 |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
