ATA5278 ATMEL Corporation, ATA5278 Datasheet - Page 25
ATA5278
Manufacturer Part Number
ATA5278
Description
Stand-alone Antenna Driver
Manufacturer
ATMEL Corporation
Datasheet
1.ATA5278.pdf
(34 pages)
- Current page: 25 of 34
- Download datasheet (582Kb)
4832D–RKE–12/07
Figure 3-18. Operation Cycle Duration versus Power Dissipation
Note that the upper limit of this diagram (0.6s) is not a design parameter but just for representa-
tion reasons. The graphs continue to increase beyond the top line. For this diagram, following
parameters have been taken:
The thermal resistance R
everything behind (i.e., the thermal resistance between the solder pad and ambient and the ther-
mal capacitance of the copper layer(s)) depend only on the PCB design.
• The total thermal resistance is 35 K/W, composed of 10 K/W for the junction-to-case
• For the thermal capacitances, the package with an equivalent capacitance of approximately
• The thermal shutdown of the chip triggers at 150°C junction temperature
resistance R
copper-to-ambient resistance R
15 mJ/K and one PCB copper layer with dimensions of 50 mm
resulting in 0.426 J/K have been taken
th,jc
, 5 K/W for the case-to-copper resistance R
0.6
0.5
0.4
0.3
0.2
0.1
th,jc
0
1.5
and the thermal capacitance of the package are fixed values, but
Ta = 105
2.5
th,pcba
˚
C
Power Dissipation (W)
3.5
4.5
Ta = 85
5.5
˚
C
th,cpcb
6.5
and 20 K/W for the
50 mm
7.5
0.05 mm,
ATA5278
25
Related parts for ATA5278
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Digital Attenuator, 50 Db, 6-bit, Ttl Driver, Dc - 2 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Voltage Variable Absorptive Attenuator, 30 Db 0.5 - 2 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
3 Volt Voltage Variable Absorptive Attenuator 40 Db, 0.5-2.0 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenu A T O R, 15 Db, 4-bit Dc - 2 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 30 Db, 4-bit Dc - 2 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 28 Db, 3-bit Dc - 2 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 15.5 Db, 5-bit Dc - 2 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
2.25 Volt Voltage Variable Absorptive Attenuator - 40 dB/ 1.8.2.5 GHz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Low Current/ High Performance NPN Silicon Bipolar Transistor
Manufacturer:
Agilent(Hewlett-Packard)
Datasheet:
Part Number:
Description:
Low Current/ High Performance NPN Silicon Bipolar Transistor
Manufacturer:
Agilent(Hewlett-Packard)
Datasheet:
Part Number:
Description:
Low Current/ High Performance NPN Silicon Bipolar Transistor
Manufacturer:
Agilent(Hewlett-Packard)
Datasheet:
Part Number:
Description:
(AT-332 / AT-337) Voltage Variable Absorptive Attenuator DC - 2 GHz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 31.5 Db, 6-bit, Ttl Driver, Dc - 2 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
2.25 Volt Voltage Variable Absorptive Attenuator - 40 Db, 1.8.2.5 Ghz
Manufacturer:
Tyco Electronics
Datasheet:
Part Number:
Description:
Digital Attenuator, 30 Db, 4-bit, Dc - 2 Ghz
Manufacturer:
Tyco Electronics
Datasheet: