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ATR0885 bảng dữ liệu(PDF) 3 Page - ATMEL Corporation |
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ATR0885 bảng dữ liệu(HTML) 3 Page - ATMEL Corporation |
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3 / 6 page  3 4923CS–DVD–02/08 ATR0885 [Preliminary] 2. Pin Configuration Figure 2-1. Pinning QFN24 IOUTA VCCA IOUTB VCCB IOUTC VCCC 24 23 22 21 20 19 7 8 9 10 11 12 18 17 16 15 14 13 1 2 3 4 5 6 GND SEL1 SEL2 ENOSC VCCS PDOUT Table 2-1. Pin Description Pin Symbol Type Function 1 GND Supply Ground, power supply 2 SEL1 Digital Logic pin 1 to select IOUT/ENABLE IC 3 SEL2 Digital Logic pin 2 to select IOUT/ENABLE IC 4 ENOSC Digital Digital control of RF oscillator 5 VCCS Supply +5V power supply for internal circuit 6 PDOUT Analog IV amplifier output 7 GND Supply Ground, power supply 8 VREF Analog Reference voltage input 9 PDIN Analog Photo-diode input 10 RTIA Analog External resistor defining transimpedance IOUTA 11 RTIB Analog External resistor defining transimpedance IOUTB 12 RTIC Analog External resistor defining transimpedance IOUTC 13 VCCC Supply +5V to +9V power supply for IOUTC 14 IOUTC Analog Output current source C for laser diode 15 VCCB Supply +5V to +9V power supply for IOUTB 16 IOUTB Analog Output current source B for laser diode 17 VCCA Supply +5V to +9V power supply for IOUTA 18 IOUTA Analog Output current source A for laser diode 19 GND Supply Ground, power supply 20 RF Analog External resistor to GND; sets frequency of oscillator 21 RSA Analog External resistor to GND; sets swing of oscillator A 22 RSB Analog External resistor to GND; sets swing of oscillator B 23 RSC Analog External resistor to GND; sets swing of oscillator C 24 IR Analog Input current bias; ∼500Ω to ground Paddle GND Supply - |
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