Datasheet
Table Of Contents
- General Description
- Pin Assignments
- Absolute Maximum Ratings
- Electrical Characteristics
- Typical Operating Characteristics
- Detailed Description
- Register Description
- Application Information
- Package Information
- Tape & Reel Information
- Soldering & Storage Information
- Laser Eye Safety
- Ordering & Contact Information
- RoHS Compliant & ams Green Statement
- Copyrights & Disclaimer
- Document Status
- Revision Information
- Content Guide
Page 48 ams Datasheet
Document Feedback [v1-08] 2020-Jun-29
TMF8701 − Application Information
SPAD Options
Signal SPADs
Firmware can enable/disable SPADs in the array as needed.
Figure 113:
Signal SPADs
Physically there are 4x32=128 signal SPADs, but SPADs with too
high dark count rate are disabled during production test. There
are four TDCs (TDC1 …TDC4) connected to the output of the
SPADs. Each of the TDCs is connected to an array of 32 SPADs
(SPADs with too high dark count rate are disabled). In distance
mode the nu mber of SPA Ds are re duced to typ. 40 SPADs to l imit
the FOV of the TMF8701.
Reference SPADs
Figure 114:
Reference SPADs
Due to the high light intensity form the VCSEL which is located
very close to the reference SPADs and has no optical barrier like
the signal SPADs only highly attenuated SPADs are used.
Physically there are 12 reference SPADs, but SPADs with too high
dark count rate are disabled during production test. There is
one TDC (TDC0) connected to the output of the SPADs.
Min Typ Max Comments
1x SPADS 72
10x Attenuated SPADs 16
100x Attenuated SPADs 16
Min Typ Max Comments
100x Attenuated SPADs 9
Application Information