Rainbow-electronics AT77C101B FingerChip™ Manual de usuario

1Features• Sensitive Layer Over a 0.8 µm CMOS Array• Image Zone: 0.4 x 14 mm = 0.02" x 0.55"• Image Array: 8 x 280 = 2240 pixels• Pixel Pitc

10AT77C101B2150A–BIOM–02/02.Table 7. Switching Performances. Tamb = 25°C; FPCLK = 1 MHz; Duty cycle = 50%Cload 120 pF on digital and analog outputs u

11AT77C101B2150A–BIOM–02/02Figure 4. ResetFigure 5. Read One Byte/Two PixelstHRSTtSETUPReset RSTClock PCLK tPDATAClockPCLKfPCLKtHCLKtLCLKtPLHACK

12AT77C101B2150A–BIOM–02/02Figure 6. Output EnableFigure 7. No Data ChangeNote: OE must not change during TNOOE after the PCLK falls. This is to ens

13AT77C101B2150A–BIOM–02/02Figure 8. AT77C101B Block DiagramFunctional Description The circuit is divided into two main sections: sensor and data con

14AT77C101B2150A–BIOM–02/02Analog-to-Digital Converter/ Reconstructing an 8-bit Fingerprint ImageAn Analog-to-Digital Converter (ADC) is used to conve

15AT77C101B2150A–BIOM–02/02Video Output An analog signal is also available on pins AVE and AVO. Note that video output is avail-able one clock pulse b

16AT77C101B2150A–BIOM–02/02Thermometer The dummy bytes DB3 and DB4 contain some internal and temperature information. The even nibble nnnn in DB3 can

17AT77C101B2150A–BIOM–02/02Integration Time and Clock JitterThe AT77C101B is not very sensitive to clock jitter (clock variation). The most importantr

18AT77C101B2150A–BIOM–02/02Power ManagementNap Mode Several strategies are possible to reduce power consumption when not in use.The simplest and most

19AT77C101B2150A–BIOM–02/02Packaging: Mechanical DataFigure 15. Product Reference: AT77C101B-CB01CFigure 16. Product Reference: AT77C101B-CB01CTop v

2AT77C101B2150A–BIOM–02/02Die Attach is connected to pins 1, 7 and 21, and must be grounded. FPL pin must begrounded.Table 1. Pin Description for Chi

20AT77C101B2150A–BIOM–02/02Figure 17. Product reference: AT77C101B-CB02C5.9 max9.85 ± 0.34.1 ± 0.2FLEX OUTPUT5.2 max8.9 ± 0.58.8 ± 0.21.25 ± 0.526.6

21AT77C101B2150A–BIOM–02/02Figure 18. Product Reference: FCD4B14CC (For Development Only) 0.080.75 max3.15 ± 0.32 0.81 ± 0.050.46 ± 0.050.25 max1.1

22AT77C101B2150A–BIOM–02/02Ordering InformationPackage DeviceNote: AT77C101B part number replaces FCD4B14 and refers to same sensor.AT77C 101B-

© Atmel Corporation 2002.Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standa

3AT77C101B2150A–BIOM–02/02Note: 1. “Ref Connector: FH18-21S-0.3SHW (HiROSE)” on page 4Table 2. Pin Description for COB with Connector Package: AT77C1

4AT77C101B2150A–BIOM–02/02Figure 2. COB with Flex(2)Figure 3. Flex Output SideNotes: 1. Ref Connector: FH18-21S-0.3SHW (HiROSE)2. Flex is not provid

5AT77C101B2150A–BIOM–02/02Die Attach is connected to pins 1 and 16, and must be grounded. FPL pin must begrounded.Table 3. Pin Description For DIP Ce

6AT77C101B2150A–BIOM–02/02Description AT77C101B is part of the Atmel FingerChip monolithic fingerprint sensor family forwhich, no optics, no prism and

7AT77C101B2150A–BIOM–02/02 Table 3. ResistanceParameter Min Value Standard MethodESDOn pins. HBM (Human Body Model) CMOS I/O 2 kV MIL-STD-883- method

8AT77C101B2150A–BIOM–02/02Note: 1. With IOL = 1 mA and IOH = -1 mATable 5. 5V Power Supply = +5V; Tamb = 25°C; FPCLK = 1 MHz; Duty cycle = 50%; Cload

9AT77C101B2150A–BIOM–02/02.Note: 1. With IOL = 1 mA and IOH = -1 mATable 6. 3.3V Power supply = +3.3V; Tamb = 25°C; FPCLK = 1 MHz; Duty cycle = 50%;