ATR0808 Datasheet, PDF (4/8 Pages) ATMEL Corporation – Three Channel Laser Driver with RF Oscillator and Two Outputs

Pin Configuration QFN16
Figure 3. Pinning QFN16
16 15 14 13
I3 1
12 GND
RF 2
11 RSA
NE2 3
10 RSB
NE3 4
9 IOUTB
5678
Pin Description
Pin
Symbol
1
I3
2
RF
3
NE2
4
NE3
5
ENABLE
6
ENOSC
7
VCC2
8
SELA
9
10
11
12
13
14
15
16
Paddle
IOUTB
RSB
RSA
GND
IOUTA
VCC1
IR
I2
GND
Type
Analog
Analog
Digital
Digital
Digital
Digital
Supply
Digital
Analog
Analog
Analog
Supply
Analog
Supply
Analog
Analog
Supply
Function
Input current, bias voltage approximately GND
External resistor to GND sets frequency of oscillator
Digital control of channel 2 (low active)
Digital control of channel 3 (low active)
Enables output current (high active)
Enables RF oscillator (high active)
+5 V power supply for IOUT
High: selects IOUTA, RSA
Low: selects IOUTB, RSB
Output current source B for laser diode
External resistor to GND sets swing of oscillator B
External resistor to GND sets swing of oscillator A
Ground
Output current source A for laser diode
+5 V power supply for circuit
Input current, bias voltage approximately GND
Input current, bias voltage approximately GND
Ground
4 ATR0808
4724ES–DVD–01/04