T0800-TNQ
| Model | T0800-TNQ |
| Description | 5-CHANNEL LASER DRIVER WITH RF OSCILLATOR AND 2 OUTPUTS |
| PDF file | Total 14 pages (File size: 291K) |
| Chip Manufacturer | ATMEL |
T0800
Figure 2-2.
Pinning
QFN28
I3
I2
IR
NC
VCC1
VCC2
VCC2
I4
I5
RFA
RFB
GND
NE2
NE3
1
2
3
4
5
6
7
28 27 26 25 24 23 22
21
20
19
18
17
16
15
8 9 10 11 12 13 14
NE4
NE5
ENABLE
VCC2
VCC2
ENOSC
SELA
IOUTA
IOUTA
GND
RSA
RSB
IOUTB
IOUTB
Table 2-2.
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
25
26
27
28
Paddle
Pin Description: QFN28
Symbol
I4
I5
RFA
RFB
GND
NE2
NE3
NE4
NE5
ENABLE
VCC2
ENOSC
SELA
IOUTB
IOUTB
RSB
RSA
GND
IOUTA
IOUTA
VCC2
VCC1
NC
IR
I2
I3
–
Type
Analog
Analog
Analog
Analog
Supply
Digital
Digital
Digital
Digital
Digital
Supply
Digital
Digital
Analog
Analog
Analog
Analog
Supply
Analog
Analog
Supply
Supply
–
Analog
Analog
Analog
–
Function
Input current, bias voltage approximately GND
Input current, bias voltage approximately GND
External resistor to GND sets frequency of oscillator A
External resistor to GND sets frequency of oscillator B
Ground
Digital control of channel 2 (low active)
Digital control of channel 3 (low active)
Digital control of channel 4 (low active)
Digital control of channel 5 (low active)
Enables output current (high active)
+5 V power supply IOUT
Enables RF oscillator (high active)
High: selects IOUTA, RFA, RSA
Low: selects IOUTB, RFB, RSB
Output current source B for laser diode
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
Output current source A for laser diode
+5 V power supply IOUT
+5 V power supply circuit
Not connected
Input current, bias voltage approximately GND
Input current, bias voltage approximately GND
Input current, bias voltage approximately GND
Should be connected with ground
3
4503D–DVD–02/05
