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ATR0849-PFQG Datasheet(PDF) 3 Page - ATMEL Corporation |
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ATR0849-PFQG Datasheet(HTML) 3 Page - ATMEL Corporation |
3 / 6 page 3 4851BS–DVD–06/05 ATR0849 2. Pin Configuration Figure 2-1. Pinning QFN24 RFB RFA NER E2 NE2 E3 IOUTA RSB GND RSA IOUTB ENABLE 18 17 16 15 14 13 1 2 3 4 5 6 24 23 22 21 20 19 78 9 10 11 12 Table 2-1. Pin Description Pin Symbol Type Function 1 RFB Analog External resistor to GND sets frequency of oscillator B 2 RFA Analog External resistor to GND sets frequency of oscillator A 3 NER Digital Digital control of read channel (channel 1), active low 4 E2 Digital Digital control of channel 2 5 NE2 Digital Digital control of channel 2 6 E3 Digital Digital control of channel 3 7 NE3 Digital Digital control of channel 3 8 E4 Digital Digital control of channel 4 9 NE4 Digital Digital control of channel 4 10 ENOSC Digital Digital control of RF oscillator 11 VCC Supply +5V power supply 12 VCC Supply +5V power supply 13 ENABLE Digital Enables output current, active high 14 IOUTB Analog Output current source B for laser diode 15 RSA Analog External resistor to GND sets swing of oscillator A 16 GND Supply Ground, power supply 17 RSB Analog External resistor to GND sets swing of oscillator B 18 IOUTA Analog Output current source A for laser diode 19 SELA Digital High: selects IOUTA, RSA, RFA Low: selects IOUTB, RSB, RFB 20 VCC Supply +5V power supply 21 IR Analog Input current, bias voltage approximately GND 22 I2 Analog Input current, bias voltage approximately GND 23 I3 Analog Input current, bias voltage approximately GND 24 I4 Analog Input current, bias voltage approximately GND Paddle GND Supply Ground, negative power supply |
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