AS3993-DK FERMI ams, AS3993-DK FERMI Datasheet - Page 13

• Manufacturer Part Number: AS3993-DK FERMI
• Description: RFID Transponder Tools AS3993 Demo Board Fermi
• Manufacturer: ams

Specifications of AS3993-DK FERMI

• Rohs: yes
• Product: RFID Readers
• Description/function: Demonstration Reader
• Frequency: 20 MHz
• Interface Type: SPI, USB
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 5 V
• Tool Is For Evaluation Of: AS3993
• For Use With: AS3993 UHF RFID Reader IC

AS3993 – AN13 – Received Signal Strength Indicator (RSSI)
Indicator LEDs:
The three indicator LEDs on the reader part together with the LED on the controller part are
used to display error states at the start-up of the reader system. LSB (bit 0) is the controller LED
and reader LEDs D1 – D3 are bit 1 – bit 3. If an error occurs during the start-up the LEDs are
slowly flashing the error code.
Error Codes:
0
1
2
3
4
5
Example - PLL not locked: Controller LED and reader LED D2 are flashing slowly.
www.ams.com
: Everything OK. Controller LED flashes fast.
: writing + reading SPI failed.
: Reset via EN low + high failed.
: IRQ line failed.
: Crystal not stable (Bit0 in AGC and Internal Status register 0x2A)
: PLL not locked (Bits1 in AGC and Internal Status register 0x2A)
Figure 9 - Reader Indicator LEDs
Revision 2.0 / 6/22/12
page 12/17