T0800 Datasheet, PDF (2/14 Pages) ATMEL Corporation – 5-CHANNEL LASER DRIVER WITH RF OSCILLATOR AND 2 OUTPUTS

2. Pin Configuration
Figure 2-1. Pinning SSO24
IR 1
I2 2
I3 3
I4 4
I5 5
RFA 6
RFB 7
NE2 8
NE3 9
NE4 10
NE5 11
ENABLE 12
24 VCC1
23 VCC2
22 IOUTA
21 IOUTA
20 GND
19 RSA
18 RSB
17 IOUTB
16 IOUTB
15 SELA
14 ENOSC
13 VCC2
Table 2-1.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16/17
18
19
20
21/22
23
24
Pin Description: SSO24
Symbol
Type
Function
IR
Analog Input current, bias voltage approximately GND
I2
Analog Input current, bias voltage approximately GND
I3
Analog Input current, bias voltage approximately GND
I4
Analog Input current, bias voltage approximately GND
I5
Analog Input current, bias voltage approximately GND
RFA
Analog External resistor to GND sets frequency of oscillator A
RFB
Analog External resistor to GND sets frequency of oscillator B
NE2
Digital Digital control of channel 2 (low active)
NE3
Digital Digital control of channel 3 (low active)
NE4
Digital Digital control of channel 4 (low active)
NE5
Digital Digital control of channel 5 (low active)
ENABLE
Digital Enables output current (high active)
VCC2
Supply +5 V power supply for IOUT
ENOSC
Digital Enables RF oscillator (high active)
SELA
Digital
High: selects IOUTA, RFA, RSA
Low: selects IOUTB, RFB, RSB
IOUTB
Analog Output current source B for laser diode
RSB
Analog External resistor to GND sets swing of oscillator B
RSA
Analog External resistor to GND sets swing of oscillator A
GND
Supply Ground
IOUTA
Analog Output current source A for laser diode
VCC2
Supply +5 V power supply for IOUT
VCC1
Supply +5 V power supply for circuit
2 T0800
4503D–DVD–02/05